Consulta: subjectFacets:"Plant breeding"
Registros recuperados: 390
Data/hora: 12/06/2024 15:16:14

Parámetros genéticos y respuestas a la selección en la población de maíz ZAC. 58 original y en su versión mejorada por selección masal.
Provedor de dados: 32
Autores: Coyac Rodríguez, José Luis.
Para conocer los parámetros genéticos de una población original de maíz (Zea mays L.) y su versión mejorada por selección masal, los cambios producidos en la población por 24 ciclos de selección masal visual estratificada (SMVE), la factibilidad de seguir empleando el mismo método de mejoramiento, y la eficiencia relativa teórica de varios métodos de selección (simples y combinados), se evaluó en cuatro ambientes el rendimiento de grano por planta (RPP) de las variedades de maíz Zac. 58 Original (Z0) y Zac. 58 SM24 (Z24), mediante la combinación de un Diseño de Familias de Medios Hermanos (DFMH) y Familias de Hermanos Completos (FHC). Para formar las familias de este Diseño, cada variedad se sembró en una parcela de 10 surcos de 10 m. Previo a la floración...
Palavras-chave: Zea mays L.; Familias; Mejoramiento genético; Selección masal; Varianza genética; Variedad ZAC. 58; Families; Plant breeding; Mass selection; Genetic variances; ZAC. 58 variety; Maestría; Genética.
Ano: 2011
URL: http://hdl.handle.net/10521/572

Análisis bayesiano de modelos lineales - bilineales.
Provedor de dados: 32
Autores: Hernández Jarquín, Juan Diego.
El análisis de tablas de doble entrada es una herramienta estadística que se presenta en diversos campos de investigación; por ejemplo, en fitomejoramiento uno de los principales objetivos es evaluar la adaptabilidad y estabilidad genotípica en la selección de los padres para el siguiente ciclo de mejoramiento.  Generalmente, este proceso se ve afectado por la presencia de la interacción Genotipo x Ambiente (GE). Bajo el enfoque clásico, para el estudio de la interacción se consideran modelos parsimoniosos como el AMMI ó el SREG y se obtienen estimaciones puntuales mediante Mínimos  Cuadrados Ordinarios (MCO) por lo que no es trivial la construcción de intervalos de confianza y el diseño de pruebas de hipótesis. En este trabajo se propone una modelación...
Palavras-chave: Distribución von Mises-Fisher; Inferencia bayesiana; Fitomejoramiento; Tablas de doble entrada con interacción; Términos bilineales de interacción; Bayesian inference; Bilinear interaction terms; Plant breeding; Two-way tables with interaction; Von mises fisher distribution; Estadística; Doctorado.
Ano: 2012
URL: http://hdl.handle.net/10521/676

Diversidad agronómica y morfológica de jitomates arriñonados y tipo pimiento de alto valor comercial en los estados de Puebla y Oaxaca.
Provedor de dados: 32
Autores: Bonilla Barrientos, Olga.
En algunas regiones de los estados de Puebla y Oaxaca, los jitomates (Solanum lycopersicum L.) nativos conocidos como ‘arriñonados’, ‘chinos criollos’, ‘cuadrados’ o ‘tipo pimiento’, ‘ojo de venado’ y ‘cereza’, son ampliamente cultivados para el  autoconsumo y su comercialización local. Estos materiales deben estudiarse, pues poseen un gran valor cultural y alimenticio, además son fuentes de germoplasma para usarse en programas de mejoramiento genético del jitomate en México. Con el objetivo de estudiar la diversidad agronómica y morfológica de jitomates nativos de amplio uso local en Puebla y Oaxaca, para aprovecharlos en programas de mejoramiento en el corto, mediano y largo plazo, se evaluaron 40 colectas de jitomate nativo de Puebla y Oaxaca, más el...
Palavras-chave: Solanum lycopersicum L.; Diversidad; Germoplasma; Mejoramiento; Diversity; Germplasm; Plant breeding; Genética; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/1874

Parámetros genéticos y respuestas a la selección en la población de maíz ZAC. 58 original y en su versión mejorada por selección masal.
Provedor de dados: 32
Autores: Coyac Rodríguez, José Luis.
Para conocer los parámetros genéticos de una población original de maíz (Zea mays L.) y su versión mejorada por selección masal, los cambios producidos en la población por 24 ciclos de selección masal visual estratificada (SMVE), la factibilidad de seguir empleando el mismo método de mejoramiento, y la eficiencia relativa teórica de varios métodos de selección (simples y combinados), se evaluó en cuatro ambientes el rendimiento de grano por planta (RPP) de las variedades de maíz Zac. 58 Original (Z0) y Zac. 58 SM24 (Z24), mediante la combinación de un Diseño de Familias de Medios Hermanos (DFMH) y Familias de Hermanos Completos (FHC). Para formar las familias de este Diseño, cada variedad se sembró en una parcela de 10 surcos de 10 m. Previo a la floración...
Palavras-chave: Zea mays L.; Familias; Mejoramiento genético; Selección masal; Varianza genética; Variedad ZAC. 58; Families; Plant breeding; Mass selection; Genetic variances; ZAC. 58 variety; Maestría; Genética.
Ano: 2011
URL: http://hdl.handle.net/10521/572

Identification of leaf rust resistance genes in selected Argentinean bread wheat cultivars by gene postulation and molecular markers
Provedor de dados: 69
Autores: Vanzetti,Leonardo Sebastián; Campos,Pablo; Demichelis,Melina; Lombardo,Lucio Andres; Aurelia,Paola Romina; Vaschetto,Luis María; Bainotti,Carlos Tomás; Helguera,Marcelo.
Leaf rust, caused by Puccinia triticina Eriks. is a common and widespread disease of bread wheat (Triticum aestivum L.), in Argentina. Host resistance is the most economical, effective and ecologically sustainable method of controlling the disease. Gene postulation helps to determine leaf rust resistance genes (Lr genes) that may be present in a large group of wheat germplasm. Additionally presence of Lr genes can be determined using associated molecular markers. The objective of this study was to identify Lr genes that condition leaf rust resistance in 66 wheat cultivars from Argentina. Twenty four differential lines with individual known leaf rust resistance genes were tested with 17 different pathotypes of leaf rust collected from Argentina. Leaf rust...
Tipo: Journal article
Palavras-chave: Genetic control of pathogens; Molecular markers; Plant breeding.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000300009

Ecological setup, ploidy diversity, and reproductive biology of Paspalum modestum, a promising wetland forage grass from South America
Provedor de dados: 74
Autores: Karunarathne,Piyal; Feduzka,Cristian; Diego,Hojsgaard.
Abstract With ever-rising demand for food, forage breeding for intensification of cattle production is also taking a leap. In South America, cattle production systems are displaced to marginal areas poorly exploited with cultivated pastures yet with high potential for growing stocking rates. This places the need for using native genetic resources to breed locally adapted plant genotypes that benefits from better forage quality, yield, and lesser threat to the local biodiversity. Paspalum modestum Mez is a grass species that produces quality forage and grows in marginal areas like estuaries and floodplains, suitable for introduction in breeding programs. In this study we characterize the species' reproductive biology and ecological preferences needed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Ecological niche; Plant breeding; Polyploidy; Sexuality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000300304

Expression profiles of sugarcane under drought conditions: Variation in gene regulation
Provedor de dados: 74
Autores: Andrade,Júlio César Farias de; Terto,Jackeline; Silva,José Vieira; Almeida,Cícero.
Abstract Drought is a major factor in decreased sugarcane productivity because of the resulting morphophysiological effects that it causes. Gene expression studies that have examined the influence of water stress in sugarcane have yielded divergent results, indicating the absence of a fixed pattern of changes in gene expression. In this work, we investigated the expression profiles of 12 genes in the leaves of a drought-tolerant genotype (RB72910) of sugarcane and compared the results with those of other studies. The genotype was subjected to 80–100% water availability (control condition) and 0–20% water availability (simulated drought). To analyze the physiological status, the SPAD index, Fv/Fm ratio, net photosynthesis (A), stomatal conductance (gs) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene expression; Plant breeding; Quantitative RT-PCR.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400465

Genome composition and pollen viability of Jatropha (Euphorbiaceae) interspecific hybrids by Genomic In Situ Hybridization (GISH)
Provedor de dados: 74
Autores: Souza,Rosilda Cintra de; Marques,Daniela de Argollo; de Carvalho Filho,Marcel Mamede; Oliveira,Ana Rafaela da Silva; Siqueira,Walter José; Benko-Iseppon,Ana Maria; Brasileiro-Vidal,Ana Christina.
Abstract Interspecific hybridization is required for the development of Jatropha curcas L. improved cultivars, due to its narrow genetic basis. The present study aimed to analyze the parental genomic composition of F1 and BC1F1 generations derived from interspecific crosses (J. curcas/J. integerrima and J. curcas/J. multifida) by GISH (Genomic In Situ Hybridization), and the meiotic index and pollen viability of F1 hybrids. In F1 cells from both hybrids, 11 chromosomes of each parental was observed, as expected, but chromosome rearrangement events could be detected using rDNA chromosome markers, suggesting unbalanced cells. In the BC1F1, both hybrids had 22 chromosomes, suggesting that only n = 11 gametes were viable in the next generation. However, GISH...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Interspecific crosses; Jatropha integerrima; J. multifida; Physic nut; Plant breeding.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000500302

Reciprocal recurrent selection effects on the genetic structure of tropical maize populations assessed at microsatellite loci
Provedor de dados: 74
Autores: Pinto,Luciana Rossini; Vieira,Maria Lucia Carneiro; Souza Jr.,Claudio Lopes de; Souza,Anete Pereira de.
A modified reciprocal recurrent selection (RRS) method, which employed one cycle of high-intensity selection, was applied to two tropical maize (Zea mays L.) populations, BR-105 and BR-106, originating the improved synthetics IG-3 and IG-4, respectively. In the present study the effects of this kind of selection on the genetic structure of these populations and their synthetics were investigated at 30 microsatellite (SSR) loci. A total of 125 alleles were revealed. A reduction in the number of alleles was observed after selection, as well as changes in allele frequencies. In nearly 13% (BR-105) and 7% (BR-106) of the loci evaluated, the changes in allele frequencies were not explained, exclusively due to the effects of genetic drift. The effective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Population genetics; Plant breeding; Molecular markers.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300022

Inclusion of genetic relationship information in the pedigree selection method using mixed models
Provedor de dados: 74
Autores: Nunes,José Airton Rodrigues; Ramalho,Magno Antonio Patto; Ferreira,Daniel Furtado.
We used a mixed model approach and computer simulation to evaluate the inclusion of parentage information as determined by the genealogy established in the pedigree method. The simulations were based on a purely additive genetic model for one quantitative trait of 20 unlinked segregating loci with equal effects and an allelic frequency of 0.5 for heritability values of 10%, 25%, 50% and 75% for selection based on an F4:5 progeny mean. We simulated 1000 experiments for each heritability value, corresponding to the evaluation of 256 F4:5 progenies. The phenotypic values of the progenies were analyzed according to two models, one ignoring and one considering the additive genetic parentage among the progenies. The additive relationship coefficients among F4:5...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autogamous crops; BLUP; Computer simulation; Plant breeding.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100015

Tomato progenies selection in Rondônia, Brazil
Provedor de dados: 75
Autores: Marques,Maria José; Vizú,Juliana de Fátima; da Silva Filho,Danilo F; Ticona-Benavente,César Augusto.
ABSTRACT This study aimed to select endogamic progenies of tomato cv. Yoshimatsu and to conduct a progeny test in the state of Rondônia. The experiment was carried out in a randomized block design with four replicates and eight plants per plot, spacing 1x0.5 m, with one stem. A significant variation was observed among the fifteen progenies for productivity (2.0-5.5 kg plant-1), seed mass with placenta (18-31.5 g fruit-1), number of fruits per plant (18.8-38.7) and soluble solids (3.4-4.2°Brix). No significant variation was noticed for fruit size, pericarp thickness, number of locules, pH, number of flowers and fruit set, though. P6 progeny showed to be the most productive one (110 t ha-1): average fruit mass was 142.5 g, salad type tomato, 7.5 locules,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Progeny test; Plant breeding; Amazon; Agronomical performance.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000100106

Genotypic selection of advanced potato clones by REML/BLUP
Provedor de dados: 75
Autores: Silva,Giovani O; Pereira,Arione S; Azevedo,Fernanda Q; Carvalho,Agnaldo DF.
ABSTRACT Potato genotypes were evaluated in their performance, according to the genotype values for tuber yield traits. The experiments were carried out in Canoinhas and Pelotas, Brazil, in spring 2014. Eleven advanced clones and two commercial cultivars (Agata and Asterix) (check cultivars) were evaluated. A randomized complete block design with four replicates was used. Plots were harvested 110 days after planting, and evaluated for tuber yield components. The data were submitted to joint deviance analyzes using the REML/BLUP method. Clones F102-22-07 and F32-02-06 stood out positively for tuber yield. F102-22-07 showed high marketable tuber yield and average tuber weight, while clone F32-02-06 exhibited high marketable and total tuber yield. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Plant breeding; Genotypic values.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200265

Genetic diversity of tropical-adapted onion germplasm assessed by RAPD markers
Provedor de dados: 75
Autores: Santos,Maria do Desterro M dos; Ragassi,Carlos Francisco; Fonseca,Maria Esther de N; Buzar,Anne Gizelle R; Oliveira,Valter R; Melo,Paulo César T de; Boiteux,Leonardo S.
Onion is a crop of significant socioeconomic importance to Brazil. Onion germplasm with adaptation to tropical and sub-tropical conditions has played an important role in the development of this crop in the country. In this context, we studied the genetic diversity in a germplasm collection potentially useful for the development of cultivars for tropical and subtropical regions. The genetic variability of 21 accessions/cultivars that have been used as germplasm and/or were developed by onion breeding programs in Brazil was evaluated via RAPD markers. The following accessions were included in the study :'Red Creole', 'Roxa IPA-3', 'Valenciana 14', 'Beta Cristal', 'Diamante', 'Composto IPA-6', 'Aurora', 'Bojuda Rio Grande', 'Alfa Tropical', 'Pêra IPA-4',...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Molecular markers; Plant breeding.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000100019

Characterization of biochemical compounds and antioxidant activity of “dedo-de-moça” chili pepper accessions
Provedor de dados: 75
Autores: Gomes,Gisely Paula; Constantino,Leonel Vinicius; Corte,Ligia Erpen-Dalla; Riger,Cristiano Jorge; Chaves,Douglas S de A; Gonçalves,Leandro SA.
ABSTRACT Capsicum baccatum is one of the main chili pepper species grown and consumed in South America. In Brazil, C. baccatum var. pendulum is widely cultivated, especially “dedo-de-moça” type. For most horticultural crops, including Capsicum species their diversity remains under-explored for traits related to fruit quality, since over the past half century breeding efforts have focused mainly on good agronomic performances. The investment in screening traits such as flavor, nutritional compounds and antioxidant content in traditional varieties is very important to support fruit quality breeding efforts. Thus, the objective of this study was accessing the variations into content of soluble solid, acidity, capsaicinoid, vitamin C, total phenolic compounds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum baccatum var. pendulum; Saccharomyces cerevisiae; Fruit quality; Plant breeding.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400429

Diallel cross among fresh market tomato inbreeding lines
Provedor de dados: 75
Autores: Souza,Lívia M de; Paterniani,Maria Elisa AGZ; Melo,Paulo César T de; Melo,Arlete MT de.
The general combining ability (GCA), specific combining ability (SCA), and heterosis were studied in a complete diallel cross among fresh market tomato breeding lines with reciprocal excluded. Fifteen genotypes (five parents and ten hybrids) were tested using a randomized complete block design, with three replications, and the experiments were conducted in Itatiba, São Paulo state, Brazil, in 2005/06. The yield components evaluated were fruit yield per plant (FP), fruit number per plant (FN), average fruit weight (FW); cluster number per plant (CN); fruit number per cluster (FC), fruit wall thickness (FT) and number of locules per fruit (NL). Fruit quality components evaluated were total soluble solids (SS); total titratable acidity (TA); SS/TA ratio,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Yield components; Fruit quality; Combining ability; Heterosis; Plant breeding.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200011

Obtaining pepper F2:3 lines with resistance to the bacterial spot using the pedigree method
Provedor de dados: 75
Autores: Riva-Souza,Elaine M; Rodrigues,Rosana; Sudré,Cláudia P; Pereira,Messias G; Viana,Alexandre P; Amaral Júnior,Antônio T do.
The economic importance of sweet pepper is rising in Brazil and abroad. Nevertheless, diseases, such as the bacterial spot (Xanthomonas campestris pv. vesicatoria or Xanthomonas euvesicatoria) jeopardize its yield. An efficient method for controlling the disease is the use of resistant varieties. The objective of this work was to select sweet pepper genotypes with resistance to the bacterial spot on a segregating population (Capsicum annum accessions UENF 1421, susceptible, x UENF 1381, resistant), advanced using the pedigree method. Three selection procedures, " selection between and within families" , " mass selection" , and " combined selection" were compared. Fifty-six F2:3 families (40 plants per family) were planted in the field, without replication....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Xanthomonas campestris pv. vesicatoria; Plant breeding; Selection within and among plants; Mass selection; Combined selection.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362007000400014

Genetic dissimilarity, selection index and correlation estimation in a melon germplasm
Provedor de dados: 75
Autores: Gomes,Danilo A; Alves,Igor M; Maciel,Gabriel M; Siquieroli,Ana Carolina S; Peixoto,Joicy Vitória M; Pires,Patrícia dos S; Medeiros,Iago A de.
ABSTRACT The success of breeding programs depends on genetic variability. Individuals selected based on a few traits may be a limitation. One alternative is the use of nonparametric indices. However, there is no information on the use of selection indices in melon germplasms. The present study aimed to estimate genetic dissimilarity in a melon germplasm and select potential parent plants for future breeding programs. The genetic material consisted of 37 melon accessions. The traits assessed were fruit diameter and length, diameter and length of the fruit cavity and total soluble solids. Genetic dissimilarity was assessed by multivariate analyses (UPGMA and Tocher). Selection gain estimates were analyzed by comparing the classic Smith-Hazel and sum of ranks...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo; Plant breeding; Multivariate analysis; Nonparametric indices; Selection gain.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362021000100046

Resistance sources to root-knot nematodes Meloidogyne javanica, M. incognita and M. enterolobii in sweet potato
Provedor de dados: 75
Autores: Carmona,Paula Andrea O; Pinheiro,Jadir B; Amaro,Geovani Bernardo; Silva,Giovani Olegario da; Peixoto,José Ricardo; Cares,Juvenil Enrique.
ABSTRACT One of the main obstacles for food production in many developing countries, as in Brazil, is the damage caused by root-knot nematodes, mainly those belonging to the genus Meloidogyne. This study aimed to assess the resistance levels of 44 sweet potato genotypes to M. javanica, M. incognita race 1 and M. enterolobii. These researches were carried out in 2014, under greenhouse conditions in Brasília-DF, Brazil. A completely randomized design with six replicates of one plant/plot/treatment was used. We determined the gall index (GI) and egg mass index (EMI) in the root system of each plant, the number of eggs and juveniles per gram of root with galls and the nematode reproduction factor. M. javanica was less aggressive and reproduced in only 9.09% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; Plant breeding; Reproduction factor; Genetic resistance.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200126

Genetic improvement of horticultural crops mediated by CRISPR/Cas: a new horizon of possibilities
Provedor de dados: 75
Autores: Koltun,Alessandra; Erpen-Dalla Corte,Lígia; Mertz-Henning,Liliane Marcia; Gonçalves,Leandro SA.
ABSTRACT The burden of the current global challenge involving food security lies in the need to improve crop production. In this regard, biotechnology stands out as an essential tool to generate plants able to cope with pests, diseases, and harsh climatic conditions, and more efficient in the use of natural resources. An advanced approach to create genetic variability in a precise and targeted way, the genome-editing technique CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR associated proteins), has drawn the attention of breeders. The genome editing CRISPR/Cas system relies on a guiding RNA that directs a nuclease to generate a double-strand break (DSB) at a target DNA, activating the cell repair systems and eventually leading...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genome editing; Plant breeding; Biotechnology; Induced mutations; Non-transgenic.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300290

Resistance of tomato genotypes to the silverleaf whitefly mediated by acylsugars
Provedor de dados: 75
Autores: Resende,Juliano TV de; Maluf,Wilson R; Cardoso,Maria das Graças; Gonçalves,Luciano Donizete; Faria,Marcos V; Nascimento,Ildon R do.
Acylsugars in the leaflets of the wild accession LA-716 (Lycopersicon pennellii) gives resistance to Bemisia spp., which causes expressive losses to the tomato crop. The goal of this work was to evaluate the resistance to the silverleaf whitefly (Bemisia tabaci biotype B) of previously selected genotypes, based on the level of acylsugars in the leaflets. F2BC1 plants {F2[Lycopersicon esculentum TOM 584 x (L. esculentum TOM 584 x L. pennellii LA-716)]} were selected for extreme contents of acylsugars: BPX-370B pl#30-275, BPX-370B pl#79-278, BPX-370B pl#30-380, BPX-370B pl#25-271 (high contents), BPX-370B pl#30-02, BPX-370B pl#30-142 (low contents). These genotypes, along with the parents TOM 584 and LA-716, were submitted to a silverleaf whitefly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bemisia tabaci biotype B; Lycopersicon esculentum; Lycopersicon pennellii; Alelochemicals; Plant breeding; Host plant resistance.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000300015

Combining ability and heterosis for agronomic traits in chili pepper
Provedor de dados: 75
Autores: Rodrigues,Rosana; Gonçalves,Leandro SA; Bento,Cintia dos S; Sudré,Claudia P; Robaina,Renata R; Amaral Júnior,Antonio T do.
The Capsicum breeding has been developed with emphasis in bell pepper (Capsicum annuum) and few studies are available in other species, especially C. baccatum, which has potential use not only as disease resistance source but also in obtaining new genotypes suitable for farmers' production. In the present work, the combining ability of ten C. baccatum hybrids, along with their five parentals, were tested considering 12 agronomic traits. The hybrids were produced from a complete diallel without reciprocals and assessed in greenhouse conditions, in Campos dos Goytacazes, Rio de Janeiro state, Brazil, during the period July to December 2009. The experimental design was a randomized block with three replications and the following agronomic traits evaluated:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum baccatum var. pendulum; Seed hybrid production; Diallel analysis; Griffing method; Plant breeding.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200008

Physicochemical characteristics of experimental net melon hybrids developed in Brazil
Provedor de dados: 75
Autores: Vargas,Pablo F; Galatti,Francine de S; Souza,Jean de O; Castoldi,Renata; Charlo,Hamilton Cesar de O; Braz,Leila T.
The objective of this study was to evaluate the physicochemical characteristics of parents and experimental hybrids of net melon improvement program developed in the Universidade Estadual Paulista (UNESP), in Jaboticabal, São Paulo state, Brazil. Six net melon lineages (Jab-3, Jab-7, Jab-11, Jab-18, Jab-9, and Jab-20), belonging to the breeding program of melon from the UNESP were used and all their hybrid combinations as well as their reciprocal crosses. We used the randomized blocks design, with three replications and 38 treatments. From these 38 treatments [six lines, 15 hybrids, 15 reciprocal crosses and two commercial cultivars (Bônus nº2 and Louis)] we evaluated following physicochemical characteristics: fruit mass, pulp thickness, fruit coat...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo; Plant breeding; Fruit quality.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000300002

Selection indexes for agronomic and chemical traits in segregating sweet corn populations
Provedor de dados: 75
Autores: Silva,Marina F e; Maciel,Gabriel M; Finzi,Rafael R; Peixoto,Joicy Vitoria M; Rezende,Wender S; Castoldi,Renata.
ABSTRACT In the sweet corn breeding, the selection of superior genotypes should consider many traits simultaneously. The best strategy to select traits simultaneously is through selection indexes. This study aimed to compare the efficiency of different selection indexes based on characteristics with direct effect on grain yield in segregating sweet corn populations. Eighteen traits were evaluated in eight sweet corn genotypes on generation F3. Data were submitted to analyses of variance and path coefficient analyses. We compared the direct and indirect selection and the following indexes: base, classical, desired gains and genotype-ideotype distance. According to path coefficient analyses, the traits which showed a direct effect about grain yield (GY) were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays subsp. sacharatta; Plant breeding; Selection gain; Simultaneous selection of characteristic.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100071

Prediction of genetic gains through selection of sweet potato accessions
Provedor de dados: 75
Autores: Vargas,Pablo F; Otoboni,Maria Eduarda F; Lopes,Beatriz G; Pavan,Bruno E.
ABSTRACT Due to the high genetic variability found in sweet potato and a low number of cultivars available on the market, there are opportunities for necessary improvements in crop breeding programs. The selection indexes are a favorable strategy to achieve higher yields through genetic gains obtained with the future population. Thus, the objective was to evaluate the selection gain of agronomic characters from sweet potato accessions for root production and dual-aptitude. 95 accessions and two commercial cultivars (Braslandia Branca and Brazlândia Roxa) were evaluated. A randomized block design with three replications of ten plants per plot was used. The index proposed by Mulamba &amp; Mock was used to select superior individuals. The evaluated population...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; Plant breeding; Genetic variability.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400387

Melhoramento genetico no Brasil - realizacoes e perspectivas.
Provedor de dados: 14
Autores: QUEIROZ, M. A. de.
O presente capítulo, complementa o enfoque dado pelos autores mencionados, de modo a ampliar o conhecimento sobre a contribuição do melhoramento de plantas no Brasil.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Melhoramento de planta; Genetic; Chain; Production; Agronegócio; Agricultura; Cadeia Produtiva; Genética; Meio Ambiente; Agribusiness; Agriculture; Environment; Plant breeding.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134341

Programa de melhoramento genético da manga e a nova cultivar BRS Ômega para o cerrado brasileiro.
Provedor de dados: 14
Autores: PINTO, A. C. de Q.; BRAGA, M. F.; JUNQUEIRA, N. T. V.; VARGAS RAMOS, V. H.; FALEIRO, F. G.; ANDRADE, S. R. M. de; CORDEIRO, M. C. R.; DIAS, J. N.; LAGE, D. A. da C.
ABSTRACT: Mango (Mangifera indica L.) is one of the most important tropical fruits cultivated in Brazil with area higer than 70 thousand hectares, production of 970 thousand tones. However, it was exported only 13,4% of this production, which is equivalent to 130 thousand tones, in 2003. Mango production and exportation are mostly developed at tropical Semi-arid condition in Northeast Brazil, which concentrated 80% on a cultivar only, Tommy Atkins. This is very dangerous though if a severe disease occrus at this specific genotype, mango production may have a strong loss and, or the whole Brazilian mango area might be destroyed. This cultivar has some negative characteristics, such as high susceptibility to mango malformation and pulp breakdown as well as...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Melhoramento genético; Mango; Tropical fruits.; Fruta Tropical; Mangifera Indica; Manga; Variedade.; Plant breeding; Varieties.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569409

Melhoramento de plantas de interesse econômico para a região amazônica através de técnicas in vitro.
Provedor de dados: 14
Autores: MOTA, M. G. da C.; LEMOS, O. F. de; POLTRONIERI, M. C.; MENEZES, I. C.
bitstream/item/60200/1/CPATU-PA149.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Melhoramento de planta; Pimenta-do-reino; Castanha do brasil; Brasil.; Bacuri; Cultura In Vitro; Cultura de Tecido; Guaraná; Paullinia Cupana; Piper Nigrum; Platonia Insignis.; Brazil nuts; Amazonia; In vitro culture; Plant breeding; Tissue culture.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374123

Determinação da pureza varietal de sementes da cultivar de soja BRS Raimunda utilizando marcadores moleculares.
Provedor de dados: 14
Autores: MOREIRA, C. T.; BROGIN, R. L.; SOUZA, P. I. M. de; FARIAS NETO, A. L. de; ABUD, S.; TEIXEIRA, R. N.
bitstream/CPAC-2009/26810/1/p2005_18.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: DNA; Glycine Max; Marcador Molecular; Marcador Genético; Melhoramento Genético Vegetal; Soja.; Genetic markers; Plant breeding; Soybeans.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569437

Desenvolvimento da cultivar de cevada BRS195 sob plantio direto na região do cerrado.
Provedor de dados: 14
Autores: RIBEIRO JÚNIOR, W. Q.; CORDEIRO, A.; OLIVEIRA, S. A. de; AMABILE, R. F.; COSER, T. R.; RAMOS, M. L. G; ZIVIANI, A. C.
bitstream/CPAC-2009/26827/1/p2005_33.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Hodeum vulgare.; Cevada; Melhoramento Vegetal; Variedade.; Barley; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569451

Resultados de pesquisa da Embrapa Soja - 2000: ecofisiologia e biologia molecular.
Provedor de dados: 14
Autores: HOFFMANN-CAMPO, C.B.; SARAIVA, O. F.
Maximização do aproveitamento das disponibilidades climáticas pela soja; Bases agronômicas e fisiológicas das respostas da soja à disponibilidade hídrica (04.2000.331-01); Bases agronômicas e fisiológicas das respostas da soja às condições térmicas e fotoperiódicas (04.2000.331-02); Identificação, clonagem e sequenciamento de genes diferencialmente expressos em resposta às variações climáticas em soja (04.2000.331-03); Manejo dos recursos disponíveis do ambiente para produção de soja (04.2000.331-04); Estratégias para amenizar impactos decorrentes das adversidades climáticas (04.2000.331-05); Modelos de simulação do desenvolvimento da cultura da soja em resposta às variáveis do ambiente (04.2000.331-06); Genética aplicada ao melhoramento da soja;...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ecofisiologia.; Biologia Molecular; Climatologia; Clima; Genética; Melhoramento; Planta Transgênica; Soja.; Climatology; Genetics; Climate; Plant breeding; Soybeans; Transgenic plants.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/462864

Avaliação de acessos de abacate nas condições de cerrado de Brasília, DF.
Provedor de dados: 14
Autores: VARGAS RAMOS, V. H.; GENÚ, P. J. de C.; PINTO, A. C. de Q.; JUNQUEIRA, N. T. V.; FERREIRA, F. R.
RESUMO: A cultura do abacate (Persea americana Mill), no Bioma Cerrado, apresenta grandes possibilidades uma vez que as condições ecológicas favorecem seu desenvolvimento. É grande a carência de informações sobre o comportamento dessa fruteira na região, no entanto, são encontradas plantas vegetando muito bem, sendo a maioria desse material originário de pés-francos, ou seja, não reproduzem as características das cultivares. A introdução dos "acessos" permite a obtenção de cultivares adaptadas à região. O fato de serem poucas as cultivares exploradas na região, o período de comercialização do produto é muito estreito, todavia, o abacate permite a seleção de cultivares com vistas a escalonar a produção durante todo o ano. O objetivo deste trabalho foi...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Abacate; Cerrado; Germoplasma; Melhoramento Genético Vegetal; Persea Americana; Variedade.; Avocados; Germplasm; Plant breeding; Varieties.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567940

Cultivares de feijão para o plantio em sistema orgânico no cerrado.
Provedor de dados: 14
Autores: CARVALHO, W. P. de; WANDERLEY, A. L.
bitstream/CPAC-2009/26808/1/p2005_16.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bean; Organic farming.; Agricultura Orgânica; Feijão; Melhoramento Vegetal; Phaseolus Vulgaris; Variedade.; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569434

Melhoramento genético de forrageiras tropicais: importância e complexidade.
Provedor de dados: 14
Autores: ASSIS, G. M. L. de.
Este trabalho tem como objetivo abordar aspectos relacionados à importância de se investir em programas de melhoramento de forrageiras tropicais no Brasil, assim como apresentar a complexidade inerente ao lançamento de novas cultivares.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Rendimiento de los cultivos.; Pastos forrajeros; Pastizales; Nueva variedad; Leguminosas forrajeras; Forraje; Fitomejoramiento; Análisis estadístico; Melhoramento genético vegetal; Pastagem; Planta forrageira; Gramínea forrageira; Leguminosa forrageira; Variedade; Rendimento; Análise estatística; Plant breeding; Pastures; Forage; Forage grasses; Forage legumes; New variety; Crop yield; Statistical analysis.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/661783

Ensaio de espécies/procedências de Cedrella spp.
Provedor de dados: 14
Autores: KANASHIRO, M.; YARED, J. A. G.; MARQUES, L. C. T.
bitstream/item/57364/1/CPATU-PA113.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Teste de procedência; Selection.; Essência Florestal; Melhoramento; Seleção.; Cedrela; Forest trees; Plant breeding; Provenance.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383246

Cultivar de trigo BRS Gralha-Azul: características e desempenho agronômico.
Provedor de dados: 14
Autores: BASSOI, M. C.; FOLONI, J. S. S.
Desenvolvimento de cultivar. Características morfológicas. Características agronômicas.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Trigo; Variedade; Wheat; Cultivars; Varieties; Plant breeding.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1012543

Avaliação de materiais genéticos de dendezeiro (Elaeis guineensis Jacq.) no Estado do Pará - uma alternativa de solução para o amarelecimento fatal.
Provedor de dados: 14
Autores: MÜLLER, A. A.; ALVES, R. M.
bitstream/item/57770/1/CPATU-PA174.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de doença; Amarelecimento fatal; Avaliação de linhagem; Rynchophorus palmarum; Elaeis guinensis; Brasil.; Dendê; Melhoramento Genético Vegetal.; Amazonia; Disease control; Plant breeding; Progeny.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375218

Análise morfoagronômica e bioquímica de um painel de sorgo energia para características relacionadas à qualidade da biomassa.
Provedor de dados: 14
Autores: DAMASCENO, C. M. B.; PARRELLA, R. A. da C.; SOUZA, V. F. de; SIMEONE, M. L. F.; SCHAFFERT, R. E.
bitstream/item/101874/1/circ-190.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Sorghum bicolor; Recurso energético; Melhoramento genético vegetal; Plant breeding; Energy resources; Biomass.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/975294

BRS Pontal: cultivar de feijoeiro comum de tipo de grão carioca com alto potencial produtivo no Distrito Federal e em Goiás.
Provedor de dados: 14
Autores: ALBRECHT, J. C.; CARVALHO, W. P. de.
bitstream/CPAC-2009/27802/1/comtec_125.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Plant disease.; Doença de Planta; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Beans; Disease resistance; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570258

Caracterização morfológica de acessos coloridos de mandioca.
Provedor de dados: 14
Autores: VIEIRA, E. A.; FIALHO, J. de F.; SILVA, M. S.
O objetivo do trabalho foi caracterizar acessos de mandioca com coloração da polpa da raiz branca, creme, amarela e rosada, por meio de descritores morfológicos. O experimento foi conduzido entre 2006 e 2007, em área experimental da Embrapa Cerrados. Foram avaliados,por meio de 33 descritores morfológicos, 16 acessos de mandioca mantidos no Banco Regional de Germoplasma de Mandioca do Cerrado (BGMC), sendo 1 acesso com coloração da polpa da raiz branca, 2 com coloração da polpa da raiz creme, 4 com coloração da polpa da raiz rosada e 9 com coloração da polpa da raiz amarela. Entre os 33 caracteres qualitativos avaliados, 27 (82 %) apresentaram variabilidade, o que revela a existência de ampla divergência morfológica e a eficiência desses marcadores na...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Melhoramento genético.; Cerrado; Mandioca; Manihot esculenta; Recurso genético; Variação genética.; Cassava; Genetic resources; Genetic variation; Plant breeding.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/659443

Identificação de cultivares de coqueiro no germinadouro através da coloração do coleto.
Provedor de dados: 14
Autores: ARAGÃO, W. M.; TUPINAMBÁ, E. A.; RIBEIRO, F. E.
Este trabalho objetiva apresentar, para técnicos e produtores, de forma prática, como identificar cultivares de coqueiro no germinadouro, atráves da coloração do coleto da plantula.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cocos nucifera L; Colour; Crossbreeding.; Coco; Cruzamento; Cor; Hibridação; Melhoramento Genético Vegetal; Método de Melhoramento; Variedade.; Breeding methods; Hybridization; Plant breeding; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/371082

Comportamento de cultivares/linhagens de caupi (Vigna unguiculata(L.) Walp.) tipo, enramador em Tracuateua e Capitão Poço, Pará.
Provedor de dados: 14
Autores: SILVA, J. F. de A. F. da.
bitstream/item/60318/1/CPATU-PA182.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Caupi; Avaliação de linhagem; Tracuateua; Capitão Poço; Pará; Brasil; Varieties triales.; Comportamento de Variedade; Feijão de Corda; Melhoramento Genético Vegetal; Vigna Unguiculata.; Amazonia; Cowpeas; Plant breeding; Progeny.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375210

Comportamento de cultivar BRS Raimunda em Goias e Distrito Federal.
Provedor de dados: 14
Autores: SOUZA, P. I. M.; FARIAS NETO, A. L.; MOREIRA, C. T.; KIIHL, R. A.; JUNIOR, J. N.; ALMEIDA, L. A.; ABUD, S.; MONTEIRO, P. M. F. O.; SILVA, J. F. V.; YORINORI, J. T.; ARANTES, N. E.; FARIA, L. C.; ASSUNCAO, M. S.; GUERZONI, R. A.
bitstream/CPAC-2009/24340/1/p2002_58.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: BRS Raimunda; Melhoramento genetico; Plant diseases.; Cerrado; Doença de Planta; Glycine Max; Soja; Variedade Resistente.; Disease resistance; Plant breeding; Soybeans; Varieties.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567642

A cultura da soja no sul do Maranhão.
Provedor de dados: 14
Autores: PALUDZYSZYN FILHO, E.
Evolucao da area cultivada; Caracteristicas regionais; Area; Temperatura; Precipitacao e necessidades hidricas; Produtividade; Epoca de plantio; Cultivares; Teor de oleo e proteina; Producao de sementes; Cultivares de ciclo precoce; Cultivares de ciclo medio; Cultivares de ciclo tardio; Comercializacao e transportes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivar; Brasil; Maranhao; Regiao norte; Soybean; Production; Productivity; Transport; North region.; Comercialização; Cerrado; Época de Semeadura; Melhoramento; Pesquisa; Produtividade; Produção; Transporte; Variedade; Soja.; Commercialization; Brazil; Research; Plant breeding; Trade; Varieties.; Sowing date; Savannas.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445817

Anais...
Provedor de dados: 14
Autores: SEMINÁRIO INTERNACIONAL SOBRE PIMENTA-DO-REINO E CUPUAÇU, 1., 1996, Belém, PA.
bitstream/item/63495/1/CPATU-Doc89.PDF
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pimenta-do-reino; Melhoramento genético; Brasil; Cultural methods; Plant diseases.; Cupuaçu; Fruta; Doença; Mercado; Pratica Cultural; Piper Nigrum; Praga; Reprodução Vegetal; Theobroma Grandiflorum.; Tecnologia; Amazonia; Fruits; Marketing; Plant breeding; Reproduction; Pests; Technology.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/393602

Biofortificação feijão-comum.
Provedor de dados: 14
Autores: PEREIRA, H. S.; OLIVEIRA, L. F. C. de; MELO, L. C.; FARIA, L. C. de; AGUIAR, M. S. de; DEL PELOSO, M. J.; SILVEIRA, P. M. da; BASSINELLO, P. Z.
Feijão-comum biofortificado. Características do feijão-comum BRS Supremo. Características do feijão-comum BRS Cometa. Características do feijão-comum BRS Sublime. Características do feijão-comum BRS FC409. Como preparar as unidades de multiplicação. Como preparar o solo e a área de plantio. Como plantar e adubar. Práticas de conservação do solo ajudam a manter a fertilidade. Quais são os sistemas de plantio. Como irrigar. Sistemas de cultivo. Como realizar os tratos culturais. Quais as principais doenças que atacam a cultura. Quais são as principais pragas que atacam a cultura. Como e quando realizar a colheita. Como fazer o armazenamento. Como utilizar. Como e onde comercializar.
Tipo: Folhetos
Palavras-chave: Alimento biofortificado; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Pratica Cultural; Beans; Plant breeding; Good agricultural practices; Biofortification.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127429

Ensaio regional e campos de observação de milho.
Provedor de dados: 14
Autores: BARRIGA, R. H. M. P.; MOTA, M. G. da C.; SILVA, J. F. da; SARMANHO, F. R.; GIANLUPPI, V.; FERNANDES, A. A. C.; STEVAN, P. H.
bitstream/item/57629/1/CPATU-PA41.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Melhoramento genético; Maize; Plant introduction.; Competição de Variedade; Introdução de Planta; Milho; Produtividade.; Plant breeding; Variety trials; Yields.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378087

BRS Vereda: nova cultivar de feijoeiro comum do grupo comercial rosinha para o Distrito Federal.
Provedor de dados: 14
Autores: ALBRECHT, J. C.; CARVALHO, W. P. de.
bitstream/CPAC-2009/24562/1/comtec_95.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultura anual.; Cerrado; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Annuals; Disease resistance; Beans; Plant breeding; Varieties.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/559650

Resultados de pesquisa com trigo na area de melhoramento genético - safra 1997.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuária do Oeste.
bitstream/item/39646/1/doc20.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Cerrado; Melhoramento; Pesquisa; Triticum Aestivum.; Trigo; Brazil; Research; Plant breeding; Wheat.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/241536

CULTIVARES de soja BRS 294RR e BRS 295RR transgênicas: precoces e produtivas.
Provedor de dados: 14
Área de indicação. Caracterísiticas.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Planta transgênica; Soybeans; Plant breeding; Varieties; Cultivars; Transgenic plants.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/573810

Resistência de mamoeiro transgênico à mancha anelar no Brasil.
Provedor de dados: 14
Autores: MEISSNER FILHO, P. E.; VILARINHOS, A. D.; OLIVEIRA, V. J. dos S. de; SILVA, D. de C. S. da; SANTOS, V. da S.; DANTAS, J. L. L.
? O objetivo deste trabalho foi avaliar a resistência de populações de mamoeiro transgênicas (PTP) ao vírus da mancha anelar do mamoeiro (Papaya ringspot virus, PRSV-P). Plantas transgênicas da variedade Sunrise Solo foram produzidas com versões traduzíveis e não traduzíveis do gene da proteína PRSV-P e foram inoculadas mecanicamente com o PRSV em casa de vegetação para fazer uma observação preliminar de sua reação ao vírus. A presença do gene CP/PRSV e sua homozigose foi avaliada por reação em cadeia da polimerase e as plantas selecionadas em função desta característica, bem como o controle Sunrise Solo foram transplantados para o campo para avaliações agronômicas. Na avaliação em casa de vegetação, entre 5,8% e 96,3% de plantas das PTP apresentaram...
Tipo: Folhetos
Palavras-chave: Mamão; Carica Papaya; Melhoramento Genético Vegetal; Plant breeding; Papayas.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1143365

BRS Valente: nova cultivar de feijoeiro comum do grupo comercial preto para o Distrito Federal e noroeste Mineiro.
Provedor de dados: 14
Autores: ALBRECHT, J. C.; CARVALHO, W. P. de.
ABSTRACT: During the winter seasons of 1997 and 1998, experiments were conducted under irrigation in the experimental area of Embrapa Cerrados Research Center at Planaltina, Federal District and in the experimental area of the Piratininga Region Agricultural Cooperative (Coopertinga), Northwest of Minas Gerais State. The objective was to identify cultivars that present the following characteristics; resistance to diseases, early maturity, high yeld, resistance to lodging, desirable plant height and good market acceptance, to be indicated for cultivation in the Federal District and the Northewest of Minas Gerais State. It was concluded that the cultivar BRS Valente is indicated for these regions, due to its high yield characteristics, erect type, resistance...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: BRS Valente; Plant diseases.; Cerrado; Doença de Planta; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Beans; Disease resistance; Plant breeding; Varieties.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/563555

Resumos...
Provedor de dados: 14
Autores: SEMINÁRIO TÉCNICO DO TRIGO, 2; REUNIÃO DA COMISSÃO CENTRO-SUL BRASILEIRA DE PESQUISA DE TRIGO, 16., 2001, Londrina.
Melhoramento, produção de sementes e qualidade industrial: Avaliação da qualidade industrial da cultivar IPR 90 no estado do Paraná 2000; Avaliação de cultivares de trigo em nível especial de experimentação, no sul de Mato Grosso do Sul, safra 2000. I. Cultivares com dois ou mais anos de teste no estado; Avaliação de cultivares de trigo em nível especial de experimentação, no sul de Mato Grosso do Sul, safra 2000. II. Cultivares em primeiro ano de teste no Estado; Avaliação de cultivares de trigo em nível estadual de experimentação, no sul de Mato Grosso do Sul; Avaliação de genótipos de trigo quanto a reação a germinação na espiga através do teste de número de queda; Avaliação de linhagens de trigo de ciclo médio na região 6, Norte do Paraná, em 2001;...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Practical cultural; Wheats; Cultural methods; Seed; Quality.; Doença de Planta; Fisiologia; Inseto; Melhoramento; Pesquisa; Qualidade; Semente; Trigo.; Insecta; Research.; Plant physiology; Plant pathology; Plant breeding.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/457286

Avaliação de linhagens de feijão (Phaseolus vulgaris L.) do grupo roxo/rosinha no Município de Alenquer, Pará.
Provedor de dados: 14
Autores: OLIVEIRA, A. F. F. de; CORRÊA, J. R. V.; POLTRONIERI, L. S.
bitstream/item/60319/1/CPATU-PA181.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Avaliação de linhagem; Phaseolus vulgares; Alenquer; Pará; Brasil; Evaluation.; Feijão; Melhoramento Genético Vegetal; Produtividade.; Amazonia; Kidney beans; Progeny; Plant breeding; Yields.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375211

Melhoramento de plantas - resumos e criticas de alguns trabalhos publicados.
Provedor de dados: 14
Autores: NASCIMENTO FILHO, F. J. do.
Relacao de alguns trabalhos publicados em revistas/periodicos sobre melhoramento de plantas, com apresentacao de resumos e criticas.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Brasil; Sao Paulo; Piracicaba; Melhoramento Genético Vegetal; Planta; Plant breeding.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666622

Melhoramento genético.
Provedor de dados: 14
Autores: PINTO, A. C. de Q.; SOUZA, V. A. B. de; ROSSETTO, C. J.; FERREIRA, F. R.; COSTA, J. G. da.
Citogenética da mangueira; recursos genéticos: domesticação e classificação da espécie, distribuição fitogenética, raças e espécies, coleções e Bancos Ativo de Germoplasma, potencial e uso dos recursos genéticos e seus problemas; o mecanismo de reprodução, a biologia floral e os fatores ambientais, a expressão sexual, a polinização e a incompatibilidade, o vingamento e a retenção de frutos. a embrionia e a estenospermocarpia, objetivos do melhoramento, principais métodos e estratégias para o melhoramento, a introdução, avaliação e seleção de cultivares (progenitores), melhoramento da população, métodod da seleção recorrente, teste de progênie, método da hibridação, seleção clonal, policruzamento e seleção entre populações de meio-irmãos, melhoramento para...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Genetic; Genética; Manga; Melhoramento; Mangoes; Plant breeding.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134330

Propagação do camucamuzeiro.
Provedor de dados: 14
Autores: NASCIMENTO, W. M. O. do.
bitstream/item/178325/1/TC-31-17-DOCUMENTOS-437-AINFO.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Propagação por semente; Propagação assexuada; Propagação por enxertia; Propagação por estalquia; Propagação por alporquia; Camu Camu; Propagação Vegetativa; Melhoramento Genético Vegetal; Vegetative propagation; Plant propagation; Plant breeding.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1092329

Avaliação e caracterização de variedades locais de milho para eficiência na absorção e na utilização de fósforo.
Provedor de dados: 14
Autores: MACHADO, C. T. de T.; MACHADO, A. T.; FURLANI, A. M. C.; GUERRA, J. G. M.
RESUMO: Experimentos de campo e sob condições controladas foram conduzidos para estudar a eficiência em fósforo (P) de variedades locais de milho. Em casa de vegetação, dezoito genótipos foram cultivados em solo, sob duas doses de P, com o objetivo de verificar diferenças quanto à produção de matéria seca e utilização de P. Detectou-se variabilidade entre variedades locais para utilização de P e respostas diferenciadas a doses aplicadas. Posteriormente, índices de eficiência ao P foram estimados em dez variedades, em três concentrações de P, em solução nutritiva, e em uma dose ótima de P em campo. Confirmou-se o comportamento diferenciado das variedades para produção de matéria seca e de grãos, conteúdo de P e índices de eficiência. Na última etapa, foram...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Nutrição fosfatada; Parâmetro cinético; Maize; Phosphorus nutrition; Kinetics parameters; Enzimatic activity.; Atividade Enzimática; Fósforo; Milho; Melhoramento Vegetal; Variedade; Zea Mays.; Genetic variation; Plant breeding; Varieties.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569605

BRS FC409: cultivar de feijoeiro-comum com alto valor comercial e nutricional, resistência à murcha de Fusarium e à murcha de Curtobacterium.
Provedor de dados: 14
Autores: PEREIRA, H. S.; MELO, L. C.; SOUZA, T. L. P. O. de; FARIA, L. C. de; CABRERA DIAZ, J. L.; CARVALHO, H. W. L. de; MELO, C. L. P. de; COSTA, A. F. da; MAGALDI, M. C. de S.; KNUPP, A. M.; POSSE, S. C. P.; COSTA, J. G. C. da; WENDLAND, A.; ABREU, A. de F. B.; PEREIRA FILHO, I. A.; MARTINS, M.; ALBRECHT, J. C.; ALMEIDA, V. M. de; GUIMARÃES, C. M.; BRAZ, A. J. B. P.; MARANGON, M. A.; CARVALHO, A. J. de; MELO, P. G. S.; TRINDADE, N. L. S. R.; SOUZA, N. P. de; FARIA, J. C. de; CALGARO, M.
A cultivar de feijão-comum BRS FC409 tem grãos do tipo carioca, com alto valor comercial e nutricional, apresentando bom nível de resistência à murcha de Fusarium e à murcha de Curtobacterium, e resistência intermediária à antracnose, ao crestamento-bacteriano-comum e à mancha-angular. É indicada para semeadura nos seguintes estados e épocas de cultivo: época das águas, da seca e de inverno, nos estados de Goiás, Espírito Santo, Rio de Janeiro, Bahia, Mato Grosso, Tocantins e no Distrito Federal; época das águas e da seca, em Mato Grosso do Sul, Paraná, Santa Catarina, São Paulo e Rio Grande do Sul; e época das águas, em Sergipe, Alagoas e Pernambuco.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Murcha de Curtobacterium; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Murcha de Fusarium; Beans; Plant breeding; Disease resistance; Varietal resistance.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127804

Comportamento de cultivares de pimenta-do-reino na Região Amazônica.
Provedor de dados: 14
Autores: ALBUQUERQUE, F. C. de; DUARTE, M. de L. R.; HIRAKATA, K.
bitstream/item/57457/1/CPATU-PA57.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pimenta-do-reino; Resistência a doença; Brasil.; Melhoramento; Produtividade.; Piper Nigrum; Amazonia; Disease resistance; Plant breeding; Yields.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379788

BRS Cometa: nova cultivar de feijoeiro comum com grão do tipo comercial carioca para a região do Distrito Federal.
Provedor de dados: 14
Autores: CARVALHO, W. P. de; ALBRECHT, J. C.
ABSTRACT: During the years 2003 and 2004, four experiments were conducted in the winter season, under irrigation and in the raining season in the experimental area of the Embrapa Cerrados Research Center at Planaltina, Federal District. The objective was to identify cultivars that presented the following characteristics: resistance to diseases, high yield, resistance to lodging, desirable plant height and good market acceptance, to be indicated for cultivation in the Federal District. It was concluded that the cultivar BRS Cometa is indicated for this region, due to its high yield characteristics, resistance to diseases and lodging, excellent cooking qualities and erect type.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultura anual.; Cerrado; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Annuals; Disease resistance; Beans; Plant breeding; Varieties.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570867

Variação fenotípica em acessos de açaizeiro (Euterpe oleracea Mart.) para caracteres relacionados à produção de frutos.
Provedor de dados: 14
Autores: OLIVEIRA, M. do S. P. de; LEMOS, M. A.; SANTOS, E. O. dos; SANTOS, V. F. dos.
bitstream/item/32828/1/CPATU-BP209.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Caracteristica agronomica; Belem; Pará; Brasil; Phenotypes; Agronomic characteristics.; Açaí; Fenótipo; Euterpe Oleracea; Fruta; Melhoramento Genético Vegetal; Produtividade; Variação Genética.; Amazonia; Genetic variation; Fruits; Plant breeding; Yields.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376612

Uso de radiação gama para obtenção de mutantes de pimenta-do-reino.
Provedor de dados: 14
Autores: ALBUQUERQUE, F. C. de; HIRAKATA, K.; ANDO, A.; MENTEN, J. O. M.
bitstream/item/57829/1/CPATU-PA44.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pimenta-do-reino; Tratamento da semente; Tratamento da gema; Radiação gama; Selection.; Melhoramento; Piper Nigrum; Seleção.; Gamma radiation; Plant breeding; Seed treatment.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378090

Estudos de hibridação em pimenta-do-reino (Piper nigrum L.).
Provedor de dados: 14
Autores: BARRIGA, R. H. M. P.; ALBUQUERQUE, F. C. de; DUARTE, M. de L. R.
bitstream/item/57763/1/CPATU-PA2.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pimenta-do-reino; Polinização controlada.; Hibridação; Melhoramento; Piper Nigrum.; Hybridization; Plant breeding; Pollination.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378127

BRS Horizonte: nova cultivar de feijoeiro comum com grão do tipo comercial carioca para a região do Distrito Federal.
Provedor de dados: 14
Autores: CARVALHO, W. P de; ALBRECHT, J. C.
ABSTRACT: During the years 2001 and 2002, four experiments were conducted in the winter season, under irrigation and in the raining season in the experimental area of the Embrapa Cerrados Research Center at Planaltina, Federal District. The objective was to identify cultivars that presented the following characteristics: resistance to diseases, high yield, resistance to lodging, desirable plant height and good market acceptance, to be indicated for cultivation in the Federal District. It was concluded that the cultivar BRS Horizonte is indicated for this region, due to its high yield characteristics, resistance to diseases and lodging, excellent cooking qualities and, mainly its erect type.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: BRS Horizonte; Plant diseases.; Doença de Planta; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Disease resistance; Beans; Plant breeding; Varieties.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570290

Utilização de sorgo para produção de grãos no Semiárido cearense.
Provedor de dados: 14
Autores: GUEDES, F. L.; POMPEU, R. C. F. F.; BUENO, L. G.; MENEZES, C. de B.
Com as pesquisas de melhoramento genético do sorgo granífero para o desenvolvimento de híbridos mais adaptados à tolerância à seca, o rendimento voltou a aumentar nas últimas décadas. Portanto, pesquisas sobre o comportamento produtivo de genótipos no intuito de identificação daqueles com maior potencial produtivo e retorno econômico são recomendados para melhor aproveitamento dessa cultura no Semiárido.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tolerância à seca; Brasil; Ceará; Alimento Para Animal; Alimento Alternativo; Sorgo Granífero; Gramínea Forrageira; Genótipo; Produtividade; Rendimento.; Melhoramento Genético Vegetal; Plant breeding; Plant genetics; Animal feeders; Forage grasses; Semiarid zones; Brazil.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117022

Variabilidade genética entre e dentro de populações naturais de Piper hispidinervum C. DC.
Provedor de dados: 14
Autores: WADT, L. H. de O.; KAGEYAMA, P. Y.
O objetivo deste trabalho foi avaliar, via marcador de DNA (RAPD - Polimorfismo de DNA amplificado ao acaso), a estrutura genética de populações naturais de P. hispidineivum no Vale do Rio Acre.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Amazônia Ocidental; Endogamy; Variación genética; Fitomejoramiento; Técnica de ADN polimórfico amplificado al azar; Isolamento por distância; Vale do Rio Acre; Acre; Western Amazon; Amazonia Occidental.; Pimenta Longa; Piper Hispidinervum; Variação Genética; Marcador Genético; Melhoramento Genético Vegetal.; Endogamia; População de Planta; Piper longum; Genetic variation; Random amplified polymorphic DNA technique.; Plant breeding; Genetic markers.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117279

Ecofisiologia.
Provedor de dados: 14
Autores: LIMA FILHO, J. M. P.; AIDAR, S. de T.
Neste capitulo é apresentada uma revisão dos principais resultados de pesquisa sobre fenologia, relações hídricas e trocas gasosas de umbuzeiro, e busca interpretá-los a fim de se explicar como os principais mecanismos atuam para garantir o crescimento e a reprodução da espécie.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Umbuzeiro; Ecofisologia; Planta nativa; Spondia; Umbu; Melhoramento vegetal; Fisiologia; Caatinga; Fenologia; Plant breeding.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1046501

Qualidade e conservação pós-colheita.
Provedor de dados: 14
Autores: LIMA, M. A. C. de; SILVA, S. de M.
Neste capítulo, foram reunidas informações geradas à partir de estudos que objetivam, principalmente, a valoração do umbuzeiro como recurso natural da região, o aproveitamento racional, bases sustentáveis, e agregação de valor ao fruto.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Umbuzeiro; Composto voláteis; Tecnologia pós-colheita; Planta nativa; Postharvest; Spondia; Umbu; Pós-colheita; Caatinga; Melhoramento vegetal; Recurso natural; Agregação de Valor; Composto Fenólico; Plant breeding.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1046560

BRS Supremo: cultivar de grão preto de feijoeiro comum de porte ereto indicada para a região do Distrito Federal.
Provedor de dados: 14
Autores: CARVALHO, W. P. de; ALBRECHT, J. C.
ABSTRACT: During the years 2001 and 2002, four experiments were conducted in the winter season, under irrigation and in the raining season in the experimental area of the Embrapa Cerrados Research Center at Planaltina, Federal District. The objective was to identify cultivars that presented the following characteristics: resistance to diseases, high yeld, resistance to lodging, desirable plant height and good market acceptance, to be indicated for cultivation in the Federal District. It was concluded that the cultivar BRS Supremo is indicated for this region, due to its high yield characteristics, erect type, resistance to diseases and lodging, as well as its excellent cooking qualities.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Doença de Planta; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Disease resistance; Beans; Plant breeding; Varieties.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570291

Avaliação de cultivares e seleções híbridas de manga em áreas de cerrado.
Provedor de dados: 14
Autores: PINTO, A. C. de Q.; VARGAS RAMOS, V. H.; DIAS, J. N.
RESUMO: A manga (Mangifera indica L. ) é uma das mais importantes frutas tropicais cultivada no Brasil com área de 70 mil hectares e produção equivalente a 970 mil toneladas. No entanto, a exportação de frutas frescas representou apenas 13,4% da produção, equivalente a 130 mil toneladas, em 2003. A área de produção para exportação está quase totalmente instalada no Nordeste brasileiro e 80% está concentrada na cultivar Tommy Atkins. Essa concentração é muito perigosa, uma vez que, com o advento de qualquer doença ou praga específica sobre essa cultivar, pode causar perdas enormes na produção, e a área de manga poderá ser completamente destruída. Essa cultivar apresenta algumas características negativas, tais como: suscetibilidade à malformação floral e ao...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Melhoramento genético; Avaliação; Mango; Evaluation; Quality.; Manga; Mangifera Indica; Rendimento; Qualidade; Variedade.; Plant breeding; Varieties; Yields.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570346

Trigo BRS 264: cultivar precoce com alto rendimento de grãos indicada para o cerrado do Brasil Central.
Provedor de dados: 14
Autores: ALBRECHT, J. C.; SÓ e SILVA, M.; ANDRADE, J. M. V. de; SCHEEREN, P. L.; TRINDADE, M da G.; SOARES SOBRINHO, J.; SOUSA, C. N. A. de; BRAZ, A. J. B. P.; RIBEIRO JÚNIOR, W. Q.; SOUSA, M. A. de; FRONZA, V.; YAMANAKA, C. H.
ABSTRACT: Embrapa, through Embrapa Savanas and Embrapa Wheat have developed a new wheat cultivar, denoted BRS 264 (Triticum aestivum L), for the savana region of Central Brazil. The new cultivar is originated from the crossing Buckbuck/Chiroca/Tui. The selection from the F2 population was performed at Embrapa Savanas, at Planaltina, DF. It is indicated for irrigated cultivation during dry seasons, in Minas Gerais, Goiás, Bahia, Mato Grosso and Distrito Federal. This cultivar presents the following main features: high production potential, large adaptability, good agronomical characteristics, industrial quality according to the market demands and precocity (avarage period from the emergence until maturation of 110 days). The avarage grain yield is around...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivo; Wheats; Agronomic characters; Cultivation.; Características Agronômicas; Cerrado; Melhoramento Genético Vegetal; Trigo; Variedade.; Triticum Aestivum; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570289

Cultivares de soja 1999.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
bitstream/CNPSO/16207/1/doc123.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivar; Brasil; Soybean; Production.; Densidade de Semeadura; Época de Semeadura; Melhoramento; População; Produção; Soja.; Density; Brazil; Population; Plant breeding; Sowing date; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/460383

BRS FS313: cultivar de feijoeiro-comum do tipo jalo, com grão graúdo e alta produtividade.
Provedor de dados: 14
Autores: AGUIAR, M. S. de; PEREIRA, H. S.; SOUZA, T. L. P. O. de; FARIA, L. C. de; COSTA, J. G. C. da; MAGALDI, M. C. de S.; SOUZA, N. P. de; KNUPP, A. M.; ALMEIDA, V. M. de; MELO, L. C.; CABRERA DIAZ, J. L.; MELO, C. L. P. de; WENDLAND, A.; POSSE, S. C. P.; ABREU, A. de F. B.; MARTINS, M.; ALBRECHT, J. C.; BRAZ, A. J. B. P.; MARANGON, M. A.; CARVALHO, A. J. de; MELO, P. G. S.; TRINDADE, N. L. S. R.; FARIA, J. C. de; SOUZA FILHO, B. F. de.
No Brasil, existem poucas cultivares registradas com grãos do tipo jalo. Nesse sentido, a cultivar BRS FS313 se destaca sobre às existentes no mercado devido à alta produtividade, excelente tamanho de grão, uniformidade e boas qualidades culinárias. A nova cultivar poderá contribuir para favorecer o aumento da sustentabilidade na produção agrícola, de acordo com os Objetivos de Desenvolvimento Sustentável da ONU, Fome Zero e Agricultura Sustentável (ODS 2) e Consumo e Produção Responsáveis (ODS 12).
Tipo: Folhetos
Palavras-chave: BRS FS313; Selo ODS 12; Selo ODS 2; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Produtividade; Beans; New variety; Plant breeding.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1149522

Indices de cruzabilidade do maracujazeiro-azedo comercial (Passiflora edulis f. flavicarpa) com especies de passifloras silvestres e progenies de retrocruzamentos, visando a obtencao de resistencia a doencas e autocompatibilidade.
Provedor de dados: 14
Autores: BORGES, T. A.; JUNQUEIRA, N, T. V.; LAGE, D, A. da C.; ALMEIDA, D. A. de; SILVA, D. M.; PEIXOTO, J. R.; FIALHO, J. de F.
bitstream/CPAC-2009/24388/1/p2003_33.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Crossbreeding.; Cruzamento; Maracujá; Melhoramento Vegetal; Método de Melhoramento; Passiflora Edulis; Reprodução Vegetal; Variedade Resistente.; Disease resistance; Breeding methods; Plant propagation.; Passion fruits; Plant breeding.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567665

Desenvolvimento de cultivares do gênero Brachiaria (trin.) Griseb no Brasil.
Provedor de dados: 14
Autores: KARIA, C. T.; DUARTE, J. B.; ARAÚJO, A. C. G. de.
In Brazil, cultivated pastures cover more than 100 million hectares and Brachiaria species cover more than 45 million hectares. B. brizantha cv. Marandu and B. decumbens cv. Basilisk are the primary cultivars. The large areas occupied by the same cultivars pose a vulnerability to the beef cattle activity, and make clear how necessary is to increase the genetic diversity of forage cultivars. Most of Brachiaria species show the apomitic mode of reproduction, with seeds containing an embryo with assexual origin. The apomixis limits the use of the hybridization in the genetic breeding program. However, the induced duplication of the chromosomes of the sexual diploid B. ruziziensis, and the identification of sexual diploid B. brizantha and B. decumbens...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Feed grasses.; Capim Brachiaria; Gramínea Forrageira; Melhoramento Genético Vegetal; Variedade.; Pastures; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570263

'Diamante ES8112': nova variedade clonal de café conilon de maturação precoce para o Espírito Santo.
Provedor de dados: 14
Autores: FERRÃO, R. G.; FERRAO, M. A. G.; FONSECA, A. F. A. da; VOLPI, P. S.; VERDIN FILHO, A. C.; LANI, J. A.; MAURI, A. L.; TÓFFANO, J. L.; TRAGINO, P. H.; BRAVIM, A. J. B.; MORELLI, A. P.
A variedade "Diamante ES8112" foi obtida do Programa de Melhoramento Genético do Incaper em parceria com a Embrapa Café e o apoio do Consórcio Pesquisa Café, com a utilização de diferentes estratégias de melhoramento e de experimentos conduzidos nas fazendas experimentais de Marilândia, Sooretama e Bananal do Norte, localizadas em ambientes representativos de cultivo do café conilon, das regiões noroeste, nordeste e sul do Espírito Santo, respectivamente.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Conilon; Variedade; Café; Melhoramento Genético Vegetal; Coffea Canephora; Clone; Plant breeding; Coffea canephora var. laurentii.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123764

Desenvolvimento de linhagens e de cultivares de trigo de ciclo precoce e médio, das classes Pão e Melhorador, adaptadas à região centro-sul subtropical (Paraná, São Paulo e Mato Grosso do Sul).
Provedor de dados: 14
Autores: BRUNETTA, D.; BASSOI, M. C.; SCHEEREN, P. L.; TAVARES, L. C. V.; ANDREOLI, C.; DOTTO, S. R.
bitstream/item/127636/1/SP-15712.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Linhagem; Melhoramento Vegetal; Trigo.; Plant breeding; Wheat.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/841375

BR-5109: nova cultivar de milho para o Estado do Acre.
Provedor de dados: 14
Autores: CAMPOS, I. S.; GAMA, E. E. G.; MAGNAVACA, R.; LODI, N. V.
Embora o milho seja plantado em todo o Estado do Acre, a produtividade alcançada nas lavouras deste cereal é muito baixa (aproximadamente 1.280 kg/ha) em virtude da predominância dos sistemas de cultivos consorciados, qualidade inferior do material genético e das sementes utilizadas. Com o objetivo de obter material genético com características requeridas para as condições de clima, solo e cultivo do milho no Estado do Acre, foi desenvolvido um trabalho de melhoramento do genótipo CMS 06, proveniente do Centro Nacional de Pesquisa de Milho e Sorgo (CNPMS).
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: BR-5109; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Rendimiento de los cultivos.; Nueva variedad; Maiz; Fitomejoramiento; Aclimatación; Factores ambientales; Melhoramento genético vegetal; Genótipo; Milho; Zea mays; Plantio; Rendimento; Variedade resistente; Aclimatação; Condição ambiental; Plant breeding; Corn; Genotype; Crop yield; New variety; Acclimation; Environmental factors.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492340

Avaliação preliminar e seleção de linhagens de guandu granífero e forrageiro no Semiárido brasileiro.
Provedor de dados: 14
Autores: SANTOS, C. A. F.
O objetivo deste estudo foi avaliar e selecionar linhagens de guandu granífero (GG) e forrageiro (GF) para ensaios de competição em vários ambientes. Linhagens de GG e GF foram avaliadas em blocos ao acaso, com duas repetições, em parcela de fila única. Para a seleção de linhagens de GG foram mensurados seis caracteres relacionados aos grãos, precocidade e porte da planta, enquanto para GF foi estimado área de massa verde (AMV), como resultado da altura x largura da planta. As médias das variáveis métricas das linhagens foram obtidas e ordenadas em planilha Excel. A aplicação da intensidade de seleção de 11% a 18% possibilitou ganho genético superior às medias das linhagens avaliadas, bem como em relação à média do germoplasma tradicional de guandu. Vinte...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Ganho de seleção; Melhoramento genético; Massa verde; Guandu granífero; Guandu forrageiro; Cajanus Cajan; Melhoramento Genético Vegetal; Seleção Genética; Biomassa; Guandu; Linhagem; Plant breeding; Forage; Pigeon peas; Genetic lines; Grains.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132232

Tecnologias em genética molecular para intensificação do uso de amendoim forrageiro em pastagens na Amazônia.
Provedor de dados: 14
Autores: OLIVEIRA, J. C. de; CAMPOS, T. de.
O setor agropecuário brasileiro tem apresentado crescente participação na economia, especialmente no mercado exportador mundial, onde a pecuária de corte tem destaque. O desafio é continuar a aumentar a produção e, simultaneamente, reduzir o desmatamento. Investimentos em tecnologia buscam tornar a pecuária mais sustentável, como o uso de gramíneas consorciadas com leguminosas forrageiras. O amendoim forrageiro (Arachis pintoi) destaca-se dentre as leguminosas forrageiras por seu alto teor de proteína, boa cobertura do solo e compatibilidade com gramíneas, além da fixação biológica de nitrogênio. O programa de melhoramento do amendoim forrageiro tem como objetivo desenvolver novas cultivares adaptadas aos diversos climas do território brasileiro. Os...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Fitomejoramiento; Pastoreo mixto; Pastos forrajeros; Leguminosas forrajeras; Variación genética; Marcadores genéticos; Repeticiones de microsatélite; Marcador microssatélite; Amendoim forrageiro; Forage peanut; Cacahuetes forrajeros; Melhoramento Genético Vegetal; Pastagem Consorciada; Gramínea Forrageira; Kudzu; Pueraria Phaseoloides; Capim Quicuio; Brachiaria Humidicola; Leguminosa Forrageira; Variação Genética; Marcador Molecular; Plant breeding; Mixed grazing; Forage grasses; Urochloa humidicola; Forage legumes; Arachis pintoi; Genetic variation; Genetic markers; Microsatellite repeats.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1109927

Propagação e manejo.
Provedor de dados: 14
Autores: ARAUJO, F. P. de; KIILL, L. H. P.; MELO, N. F. de; AIDAR, S. de T.
Propagação; Propagação assexual ou vegetativa; Uso do umbuzeiro como porta-enxerto de outras espécies do gênero Spondias; Enriquecimento da Caatinga com umbuzeiros; Algumas considerações sobre a ocorrência de pragas.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Umbuzeiro; Spondia tuberosa; Propagação; Planta nativa; Umbu; Caatinga; Desenvolvimento Sustentável; Spondias; Plant breeding.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1046515

Uso da biologia molecular para estudos genéticos em açaizeiros na Amazônia brasileira.
Provedor de dados: 14
Autores: AZÊVEDO, H. S. F. da S.; AZEVEDO, J. M. A. de; SILVA, L. M. da; MARTINS, K.; CAMPOS, T. de.
Populações de açaizeiros na Amazônia são abundantes, possuem importância econômica e têm sido foco de diferentes estudos. Os açaizeiros destacam-se por produzir um importante alimento: a ?polpa de açaí?? extraída dos frutos. Nos últimos anos, a demanda pela polpa aumentou de forma expressiva por possuir características energéticas, nutritivas e altos teores de fibras e antioxidantes. A extração dos frutos é baseada no extrativismo e por isso, práticas de manejo têm sido recomendadas para uma coleta sustentável. Para se recomendar taxas sustentáveis de coleta dos frutos, é fundamental o levantamento de informações sobre a variabilidade genética das populações naturais, além do monitoramento sobre o recrutamento e a dinâmica populacional. A transferibilidade...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Fitomejoramiento; Variación genética; Marcadores genéticos; Repeticiones de microsatélite; Marcador microssatélite; Melhoramento Genético Vegetal; Açaí; Euterpe Edulis; Euterpe Oleracea; Variação Genética; Marcador Molecular; Plant breeding; Euterpe precatoria; Genetic variation; Genetic markers; Microsatellite repeats.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1109928

Resumos...
Provedor de dados: 14
Autores: SEMINÁRIO/WORKSHOP SERINGUEIRA NA AMAZÔNIA: SITUAÇÃO ATUAL E PERSPECTIVAS, 1., 1998, Belém, PA.
Politica atual do Ministerio da Agricultura e do Abastecimento para incentivo a producao de borracha natural. Exploracao de seringais nativos na Amazonia. Situacao economica e perspectivas do extrativismo da borracha na Amazonia. Ilhas de alta produtividade: uma proposta de manejo neo-extrativista. Ilhas de alta produtividade - IAPS: uma alternativa para plantio de seringueira no Acre. Analise sistemica da cadeia produtiva da borracha natural. Vocacao climatica da Amazonia para a cultura da seringueira. Melhoramento genetico da seringueira. Nutricao e adubacao da seringueira na Amazonia. Doencas da seringueira nas areas tradicionais de cultivo e nas areas de escape da Amazonia. Enxertia de copa na viabilizacao da heveicultura nas areas umidas da bacia...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivo; Extrativismo; Borracha natural; Pará; Brasil; Production; Cultivation; Extractivism.; Adubação; Borracha; Cadeia Produtiva; Comercialização; Hevea Brasiliensis; Melhoramento Genético Vegetal; Nutrição; Seringueira.; Produção; Amazonia; Fertilizer application; Marketing; Plant breeding; Nutrition; Rubber.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/393804

BRS A502: cultivar de arroz de terras altas com resistência ao acamamento e grãos de excelente qualidade industrial e culinária.
Provedor de dados: 14
Autores: FURTINI, I. V.; CASTRO, A. P. de; LACERDA, M. C.; BRESEGHELLO, F.; FRAGOSO, D. de B.; COLOMBARI FILHO, J. M.; CORDEIRO, A. C. C.; SOUSA, N. R. G.; UTUMI, M. M.; SILVEIRA FILHO, A.; PEREIRA, J. A.; ABREU, G. B.; OLIVEIRA, I. J. de; BASSINELLO, P. Z.; SILVA-LOBO, V. L.
A Embrapa e parceiros do Programa de Melhoramento Genético de Arroz de Terras Altas, disponibilizam uma nova cultivar de arroz, BRS A502. As principais características são a elevada resistência ao acamamento, ciclo médio, alto potencial produtivo e grãos de excelente qualidade industrial e culinária. BRS A502 é uma cultivar que pode ser utilizada em diversas condições de cultivo, incluindo a rotação e a sucessão de culturas em áreas sob agricultura intensiva (terras velhas) nas principais regiões produtoras do Brasil.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: BRS A502; Arroz; Oryza Sativa; Melhoramento Genético Vegetal; Qualidade; Culinária; Variedade Resistente; Rice; Cultivars; Varietal resistance; Plant breeding.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124146

Indicação de cultivares de café arábica para o estado do Espírito Santo e avaliação comparativa com o conilon em altitude elevada.
Provedor de dados: 14
Autores: FERRAO, M. A. G.; RIVA-SOUZA, E. M.; FONSECA, A. F. A. da; FERRÃO, R. G.; SANTOS, W. G. dos; SPADETO, J.
Este trabalho objetiva apresentar os principais resultados de pesquisa na área de melhoramento genético de café arábica, além da atualização da relação de cultivares recomendadas para o estado do Espírito Santo e de informações de novas cultivares promissoras. Para tanto, será discutido um conjunto de resultados inerentes ao desempenho agronômico de cultivares de café arábica em ambientes tanto de baixa altitude e temperatura elevada quanto de altitude elevada e temperatura baixa, bem como o comportamento de diferentes linhagens selecionadas no programa de melhoramento do Incaper em parceria com a Embrapa Café. Paralelamente, serão apresentados os resultados preliminares do desempenho comparativo dos cafés arábica e conilon em áreas consideradas até...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Variedade; Coffea Arábica; Coffea Canephora; Melhoramento Genético Vegetal; Coffea arabica var. arabica; Plant breeding.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132302

Análise econômica para a pecuária de corte em pastagens melhoradas no Acre.
Provedor de dados: 14
Autores: SA, C. P. de; ANDRADE, C. M. S. de; VALENTIM, J. F.
A pecuária de corte é a atividade com maior expressão econômica do setor agropecuário do Estado do Acre, representando aproximadamente 40% do valor bruto da produção. Contudo, sistemas de produção caracterizados como tradicionais, que apresentam baixos índices zootécnicos, predominam na maior parte das pequenas, médias e grandes propriedades. Consequentemente, o setor apresenta baixa produtividade e rentabilidade e tem causado impactos ambientais negativos decorrentes de desmatamentos, que implicam em perda de biodiversidade e degradação dos solos. Observa-se que a retração da atividade é ocasionada por diversos fatores, com destaque para medidas voltadas à redução nas taxas de desmatamento, o que limita a expansão das áreas de pastagens, e para a baixa...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brachiaria brizantha cv Xaraés; Acre; Amazonia Occidental; Panicum maximum cv Tanzânia; Panicum maximum cv Mombaça; Panicum maximum cv Massai; Amendoim forrageiro; Forage peanuts; Cacahuetes forrajeros; Arachis pintoi cv Belmonte; Amazônia Ocidental; Western Amazon; Análisis económico; Pastizales; Leguminosas forrajeras; Cynodon nlemfluensis; Fitomejoramiento; Análisis de costo-beneficio; Pastos forrajeros; Adopción de innovaciones; Ganado de carne; Agricultura sustentable; Rentabilidad.; Agricultura Sustentável; Capim Quicuio; Brachiaria Humidicola; Leguminosa forrageira; Pueraria phaseoloides; Análise econômica; Análise de custo-benefício; Transferência de Tecnologia.; Gado de corte; Produtividade; Adoção de Inovações; Pastagem; Melhoramento vegetal; Gramínea Forrageira; Cost benefit analysis.; Economic analysis; Forage legumes; Urochloa humidicola; Forage grasses; Plant breeding; Pastures; Innovation adoption; Technology transfer; Profitability; Beef cattle; Sustainable agriculture.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/859145

Avaliação de progênies de açaizeiro promissoras para frutos em diferentes fases de desenvolvimento.
Provedor de dados: 14
Autores: OLIVEIRA, M. do S. P. de; CARVALHO, J. E. U. de; TRINDADE, D. R.; SOUZA, L. A. de; LINHARES, L. C. F.
bitstream/item/52958/1/PesquisaAnd0110001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Avaliação de progênie; Pará; Brasil.; Açaí; Euterpe Oleracea; Germinação; Melhoramento Genético Vegetal; Sementeira; Viveiro.; Amazonia; Germination; Plant nurseries; Plant breeding; Progeny; Seedbeds.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374658

BRS Radiante: nova cultivar precoce de feijoeiro comum com tipo de grao rajado para o Distrito Federal e noroeste mineiro.
Provedor de dados: 14
Autores: CARVALHO, W. P. de; ALBRECHT, J. C.
bitstream/CPAC-2009/24561/1/comtec_94.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultura anual.; Cerrado; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Annuals; Beans; Disease resistance; Plant breeding; Varieties.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/559631

Avaliação de cultivares de banana em Rio Branco, Acre.
Provedor de dados: 14
Autores: LEDO, A. da S.; LEDO, F. J. da S.; SILVA, S. de O. e.
Este trabalho objetivou avaliar o comportamento de nove genótipos de bananeira: JV 03-15, PA 03-22, PA 12-03-porte médio; Mysore, Thap Maeo, Pelipita, Nam, Yangambi km 5, e Nam-porte alto, durante o 1º, 2º e 3º ciclos de produção, nas condições edafocliomáticas de Rio Branco-AC. Observou-se que a cv. Pelipita obteve o maior desenvolvimento vegetativo em altura e circunferência do pseudocaule, seguida da Thap Maeo, Mysore e Pacovan. Quanto ao número de folhas vivas por ocasião da colheita, as cultivares Mysore, e Thap Maeo apresentaram maior vigor. A cv. Pacovan, por ocasião do 2º ciclo, não apresentava nenhuma folha, em função da alta incidência de sigatoka-amarela, o que comprometeu, significativamente, o peso dos cachos. No 1º ciclo de produção, a Thap...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Aclimatación; Bananos; Factores ambientales; Fitomejoramiento.; Melhoramento genético vegetal; Banana; Musa sp; Variedade resistente; Vigor híbrido; Aclimatação; Condição ambiental; Características Agronômicas; Plátano.; Plant breeding; Bananas; Agronomic traits; Heterosis; Acclimation; Environmental factors.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492502

Seleção para a diminuição do porte da planta de milho na cultivar crioulo de Roraima.
Provedor de dados: 14
Autores: BARRIGA, R. H. M. P.; RIBEIRO, P. H. E.
bitstream/item/60089/1/CPATU-PA67.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Variedade crioulo; Roraima; Brasil; Maize; Selection.; Milho; Melhoramento; Seleção.; Amazonia; Plant breeding; Varieties.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380613

BRS FS311: cultivar de feijoeiro-comum de grãos rajados, com alta produtividade e qualidade comercial.
Provedor de dados: 14
Autores: AGUIAR, M. S. de; PEREIRA, H. S.; SOUZA, T. L. P. O. de; FARIA, L. C. de; COSTA, J. G. C. da; MAGALDI, M. C. de S.; SOUZA, N. P. de; KNUPP, A. M.; ALMEIDA, V. M. de; CABRERA DIAZ, J. L.; MELO, C. L. P. de; WENDLAND, A.; POSSE, S. C. P.; ABREU, A. de F. B.; MARTINS, M.; ALBRECHT, J. C.; BRAZ, A. J. B. P.; MARANGON, M. A.; CARVALHO, A. J. de; MELO, P. G. S.; TRINDADE, N. L. S. R.; FARIA, J. C. de; SOUZA FILHO, B. F. de; MELO, L. C.
A cultivar de feijoeiro-comum com grão rajado, BRS FS311, tem como destaques a alta produtividade, ciclo semiprecoce, arquitetura ereta e excelente qualidade comercial, com grãos maiores e aspecto visual adequado para o padrão rajado, aliados a um bom potencial produtivo, além da resistência à antracnose e moderada resistência à murcha de Fusarium. Com base no desempenho, a cultivar BRS FS311 é indicada para semeadura nos estados de Goiás, Mato Grosso, Tocantins, Maranhão, Bahia, Espírito Santo e no Distrito Federal (Região II), nas épocas de cultivo das águas e de inverno; e Paraná, Santa Catarina, São Paulo, Mato Grosso do Sul e Rio Grande do Sul (Região I), nas épocas das águas e da seca.
Tipo: Folhetos
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Beans; New variety; Plant breeding.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1139289

CATÁLOGO de cultivares de arroz: safra 2022-2023.
Provedor de dados: 14
RS A706 CL - arroz irrigado. BRS A705 - arroz irrigado. BRS A704 - arroz irrigado. BRS Pampeira - arroz irrigado. BRS Catiana - arroz irrigado. BRS Pampa CL - arroz irrigado. Cultivares de arroz irrigado - Tecnologia Embrapa. BRS 358 - grãos especiais. BRS 902 - grãos especiais. Cultivares de grãos especiais - Tecnologia Embrapa. BRS A502 - arroz de terras altas. BRS A501 CL - arroz de terras altas. BRS Esmeralda - arroz de terras altas. BRSGO Serra Dourada - arroz de terras altas. Cultivares de arroz de terras altas - Tecnologia Embrapa.
Tipo: Folhetos
Palavras-chave: Grãos especiais; Arroz de terras altas; Cultivar; Arroz Irrigado; Oryza Sativa; Melhoramento Genético Vegetal; Variedade; Variedade Resistente; Rendimento; Rice; Plant breeding; Cultivars; Specialty crops; Yields; New variety.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144282

Ensaio comparativo avançado de arroz de sequeiro em Redenção, Pará - ano agrícola 1998/1999.
Provedor de dados: 14
Autores: LOPES, A. de M.; EL-HUSNY, J. C.
bitstream/item/52950/1/PesquisaAnd0140001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Arroz de sequeiro; Maravilha; Progresso; Xingu; Redenção; Pará; Brasil; Upland rice.; Linhagem; Melhoramento Genético Vegetal; Variedade.; Amazonia; Plant breeding; Progeny; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374465

Produção e dispersão de sementes em pimenta longa (Piper hispidinervum).
Provedor de dados: 14
Autores: SILVA, A. C. P. R. da; OLIVEIRA, M. N. de.
As características que influem na distribuição da variação genética nas espécies de plantas incluem a distribuição geográfica da espécie, o tamanho efetivo das populações, o modo de reprodução, o sistema de cruzamento, o mecanismo de dispersão de sementes e o estágio da sucessão em que a espécie é freqüente. Para iniciar um trabalho de domesticação e escolha do melhor método de melhoramento a ser utilizado, é premente que tais informações sejam conhecidas. A pimenta longa (Piper hispidinervum) é uma planta de ocorrência no Estado do Acre e com grande interesse econômico devido à produção de um óleo essencial rico em safrol. O objetivo do presente trabalho foi conhecer o sistema de produção e dispersão de sementes da espécie para utilizar na conservação da...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Productividad de semillas; Diseminación de semillas; Aceites essenciales; Pipe hispidinervum; Variación genética.; Safrol; Melhoramento genético vegetal; Pimenta longa; Óleo essencial; Produção de sementes; Dispersão de semente; Variação genética.; Plant breeding; Piper longum; Essential oils; Safrole; Seed productivity; Seed dispersal; Genetic variation.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495159

Análise da variabilidade genética em Triticum tauschii utilizando marcadores microsatélites.
Provedor de dados: 14
Autores: CORDEIRO, M. C. R.; BARROS, A. M.; FALEIRO, F. G.; BONATO, A. L.; BRAMMER, S. P.; VITAL, D. P.; SANTOS, V. A.
bitstream/CPAC-2009/27707/1/p2006_40.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Melhoramento genético; Variedade genética; Wheats.; Ferrugem Alaranjada; Trigo; Variedade Resistente.; Genetics; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/544396

Introdução e avaliação de linhagens e cultivares de cevada hexástica irrigada no cerrado.
Provedor de dados: 14
Autores: AMABILE, R. F.; OLIVEIRA, F. A.; GUERRA, A. F.; MINELLA, E.; RIBEIRO JÚNIOR, W. Q.
RESUMO: A expansão da cultura de cevada na região do Cerrado é favorecida pelas boas condições climáticas, especialmente, ausência de geadas e chuva na época de colheita. A cultivar BRS180 é a única cevaa de seis fileiras de grãos recomendada para o Cerrado. O objetivo deste trabalho foi apresentar genótipos introduzidos e selecionados de cevada hexáustica, superiores à BRS180, no Brasil Central. O experimento composto de 14 genótipos de cevada hexástica e duas testemunhas: a BRS 180 e o trigo Embrapa 22 foi conduzido no Campo Experimental da Embrapa Cerrados, em regime de irrigação. O delineamento experimental foi em blocos ao acaso com quatro repetições. Foram avaliadas as seguintes características: rendimento de grãos e matéria seca, altura de plantas,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Avaliação; Agronomic characters.; Características Agronômicas; Cevada; Cultura Irrigada; Hordeum Vulgare; Linhagem; Melhoramento Genético Vegetal.; Barley; Irrigated farming; Progeny.; Plant breeding.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569837

Resposta de variedades de milho a níveis e fontes de nitrogênio.
Provedor de dados: 14
Autores: MACHADO, A. T.; MACHADO, C. T. de T.; MIRANDA, G. V. de; COELHO, C. H. M.; GUIMARÃES, L. J. M.
RESUMO: A resposta de variedades de milho a nitrogênio (N) foi avaliada em cinco ensaios. Dois experimentos realizados em Coimbra (MG) e dois dos realizados em Seropédica (RJ) foram repetidos com 120 kg e 20 kg ha (elevado a -1) de N, sendo que o terceiro ensaio de Seropédica recebeu adubação verde. Cinco variedades locais, cinco experimentos e quinze melhoradas compuseram os ensaios, nos quais utilizou-se o delineamento experimental látice 5 x 5, com três repetições. O parâmetro de comparação foi o rendimento dos grãos. Em Seropédica, avaliou-se também o teor de N nos grãos e na planta. As variedades Caiano de Sobrália, Saracura, MC 3 e BR 5039 mostraram melhor resultado a baixos níveis de N, enquanto BR 106, Caiano de Sobrália, Eldorado e MC 9 foram as...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Eficiência; Maize; Efficiency; Translocation.; Melhoramento Vegetal; Milho; Nitrogênio; Variedade; Translocação; Zea Mays.; Plant breeding; Nutrient transport; Nitrogen; Varieties.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568126

Indicação da cultivar de soja BRSGO Raíssa para os estados de Minas Gerais, Bahia e Mato Grosso do Sul.
Provedor de dados: 14
Autores: SOUZA, P. I. M. de; MOREIRA, C. T.; FARIAS NETO, A. L. de; ABUD, S.; MONTEIRO, P. M. F. O.; NUNES JÚNIOR, J.; ASSUNÇÃO, M. S.; ARANTES, N. E.; ALMEIDA, L. A. de; SILVA, J. F. V.; YORINORI, J. T.; DIAS, W. P.
bitstream/CPAC-2009/26811/1/p2005_19.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Glycine Max; Melhoramento Genético Vegetal; Soja; Variedade.; Plant breeding; Varieties.; Soybeans.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569438

Variabilidade em população de Stevia rebaudiana como subsídio para a seleção e melhoramento genético.
Provedor de dados: 14
Autores: FALEIRO, F. G.; SPEHAR, C. R.; PEREIRA, A. V.; PEREIRA, E. B. C.; BELLON, G.; BARROS, A. M.; JUNQUEIRA, N. T. V.; SILVA, L. C.
bitstream/CPAC-2009/26857/1/p2005_48.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: RAPD.; Stévia; Marcador Molecular; Melhoramento Genético Vegetal; Planta Produtora de Açúcar; Variação Genética.; Genetic variation; Genetic markers; Plant breeding; Sugar crops.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/563945

BRS Timbo: nova cultivar de feijoeiro comum do grupo comercial roxinho para o Distrito Federal e noroeste mineiro.
Provedor de dados: 14
Autores: CARVALHO, W. P. de; ALBRECHT, J. C.
bitstream/CPAC-2009/24560/1/comtec_93.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultura anual.; Cerrado; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Annuals; Disease resistance; Beans; Plant breeding; Varieties.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/559355

Análise de mistura genética em campos de multiplicação de sementes de soja com base em marcadores moleculares.
Provedor de dados: 14
Autores: FALEIRO, F. G.; SOUZA, P. I. M.; ANDRADE, S. R. M.; BELLON, G.; ABUD, S.; MOREIRA, C. T.; BARBOSA, F.; SANTOS, J. B.
bitstream/CPAC-2009/26858/1/p2005_49.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Glycine Max; Marcador Molecular; Melhoramento Genético Vegetal; Soja.; Genetic markers; Plant breeding; Soybeans.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/566836

Tempo de exposição e fonte de cálcio na seleção de soja tolerante ao alumínio em hidroponia.
Provedor de dados: 14
Autores: SPEHAR, C. R.; SOUZA, L. A. C.
RESUMO: Realizaram-se testes com genótipos de soja para determinar qual a combinação entre a concentração e o período de exposição ao alumínio (Al) e a fonte de cálcio (cloreto ou nitrato), sendo esta mais eficiente na seleção de plantas tolerantes ao Al em solução nutritiva. Os genótipos avaliados foram BR86 5974, BR86 7396, BR86 7485, FT Cristal, FT 100, FT Cristalina, Doko RC, FT Eureka, BR 40 (Itiquira) e BR 9 (Savana). Utilizou-se o delineamento de blocos ao acaso em parcelas subsubdivididas onde, nas parcelas, foram comparadas fontes de cálcio, nas subparcelas, concentrações de Al, e nas subsubparcelas genótipos. A concentração de 2mg/L de Al foi apropriada para discriminar os genótipos 48 horas depois do início do teste. As fontes de cálcio não...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Tolerância; Estresse; Aluminium; Tolerance; Hidroponics.; Alumínio; Glycine Max; Genótipo; Melhoramento Vegetal; Soja; Stress.; Genotype; Plant breeding; Soybeans.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569088

Ensaio comparativo avançado de arroz de sequeiro em Alenquer, Pará - ano agrícola 1998/1999.
Provedor de dados: 14
Autores: LOPES, A. de M.; CORREA, J. R. V.
bitstream/item/52946/1/PesquisaAnd0170001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Arroz de sequeiro; Maravilha; Progresso; Xingu; Alenquer; Pará; Brasil; Upland rice.; Linhagem; Melhoramento Genético Vegetal; Variedade.; Amazonia; Plant breeding; Progeny; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374359

Variabilidade genética de acessos de Passiflora tenuifila killip de três gerações de melhoramento com base em marcadores RAPD (2009).
Provedor de dados: 14
Autores: ALMEIDA, B. C. de; FALEIRO, F. G.; BELLON, G.; VILLELA, J. G. A.; JUNQUEIRA, N. T. V.; COSTA, A. M.; GUIMARAES, T. G.; SANTOS, J. B. dos.
bitstream/item/78315/1/p2009-100.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Maracujá; Melhoramento.; Passiflora; Plant breeding; Passion fruits; Varieties.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/711899

Variabilidade fenotípica entre cultivares brasileiras, americanas e canadenses de aveia branca.
Provedor de dados: 14
Autores: VIEIRA, E. A.; CARVALHO, F. I. F. de; SILVA, M. S.; FIALHO, J. de F.
RESUMO: A variabilidade genética em programas de melhoramento pode ser incrementada pela introdução de germoplasma. Entretanto, é necessário que se conheça a distância genética entre esses e os genótipos locais, para que se maximizem as chances de êxito. O trabalho objetivou estimar a disância genética entre 15 cultivares de aveia branca, das quais 11 são estrangeiras (10 americanas e 1 canadense) e 4, brasileiras. O experimento foi conduzido em 2004 na área experimental da UFPel. O delineamento experimental foi o de blocos casualizados com três repetições. Os dados aferidos foram submetidos à análise de variância e foi estimada a matriz de distâncias de Mahalanobis entre os genótipos. A partir da matriz de distâncias foi construído um dendrograma, que...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Cultura anual.; Avena Sativa; Aveia; Genética Vegetal; Melhoramento Genético Vegetal; Variedade.; Variação Genética; Annuals; Genetic variation; Genetics; Plant breeding; Oats; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570250

Mamão: o produtor pergunta, a Embrapa responde.
Provedor de dados: 14
Autores: DANTAS, J. L. L.; JUNGHANS, D. T.; LIMA, J. F. de.
Introdução; Variedades e características da planta; Clima, solo calagem e adubação; Propagação e produção de mudas; Plantio, tratos culturais e culturas intercalares; Irrigação e fertirrigação; Doenças; Pragas; Colheita e pós-colheita; Formas de processamento; Comercialização, aspectos econômicos e custos de produção.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Colheita; Fruta Tropical; Fertirrigação; Irrigação; Mamão; Melhoramento Genético Vegetal; Praga de Planta; Processamento; Plant breeding.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124472

Avaliação preliminar de variedades de tangeleiros em Barcarena, Pará.
Provedor de dados: 14
Autores: RIBEIRO, S. I.; CERQUEIRA, L. S. C. de; AZEVEDO, T. L. de F.
bitstream/item/32797/1/CPATU-BP195.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Tangeleiro; Avaliacao; Melhoramento genetico; Barcarena; Pará; Brasil; Evaluation; Genotypes; Selection.; Fruta Cítrica; Produtividade; Seleção Genótipa; Variedade.; Amazonia; Citrus fruits; Plant breeding; Varieties; Yields.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376590

Melhoramento genético do arroz de sequeiro no Nordeste do Brasil.
Provedor de dados: 14
Autores: PEREIRA, J. A.; MORAIS, O. P. de; CASTRO, E. da M. de.
bitstream/item/220438/1/melhoramento-genetico-1999.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Nordeste; Arroz; Oryza Sativa; Melhoramento Genético Vegetal; Rice; Plant breeding.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/195117

Avaliação agronômica de acessos de mandioca de mesa em Paracatu-MG.
Provedor de dados: 14
Autores: VIEIRA, E. A.; FIALHO, J. de F.; SILVA, M. S.
bitstream/CPAC-2010/30388/1/bolpd-226.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Variabilidade genética.; Mandioca; Manihot esculenta; Melhoramento genético vegetal.; Cassava; Plant breeding; Variability; Genetics.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/572011

Teste de progênies em cultivar de juta roxa.
Provedor de dados: 14
Autores: BARRIGA, R. H. M. P.; SILVA, J. F. da.
bitstream/item/57826/1/CPATU-PA66.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Variedade roxa.; Juta; Melhoramento; Produtividade; Teste de Progênie.; Jute; Plant breeding; Progeny testing; Varieties; Yields.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380612

Predição de características bromatológicas em Arachis pintoi Krap &amp; Greg. via espectroscopia de reflectância do infravermelho próximo.
Provedor de dados: 14
Autores: ATHAYDE, N. B.; MEDEIROS, E. P. de; FONSECA, C. E. L. da; ASSIS, G. M. L. de.
Objetivou-se verificar a efetividade da espectroscopia no infravermelho próximo e calibração multivariada para a predição de características bromatológicas do amendoim forrageiro (Arachis pintoi Krap &amp; Greg.). Amostras de diferentes origens genéticas, anos e épocas de colheita foram usadas para leituras espectrais e análises de referência. Para o desenvolvimento das regressões por quadrados mínimos parciais (PLS) utilizaram-se 206 amostras como conjunto de calibração e 103 como conjunto de validação externa. Como os ajustes das calibrações iniciais foram de moderados a baixos, uma nova etapa foi feita com 462 amostras para calibração e 231 para validação externa. Outras 231 amostras foram utilizadas para uma segunda validação dos modelos. As...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Amendoim forrageiro; Forage peanut; Cacahuetes forrajeros; Leguminosas forrajeras; Fitomejoramiento; Espectroscopia de reflectância no infravermelho próximo (NIRS); Espectroscopía del infrarrojo cercano; PLS; Manejo de pasto; Análise multivariada; Análisis de multivarianza; Características bromatológicas; Bromatological traits; Leguminosa Forrageira; Pastagem; Manejo; Recuperação do Solo; Melhoramento Genético Vegetal; Método Estatístico; Forage legumes; Arachis pintoi; Plant breeding; Pasture management; Multivariate analysis; Near-infrared spectroscopy.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126405

BRS Pitanga: cultivar de feijoeiro do grupo comercial roxinho para o Distrito Federal e Goiás.
Provedor de dados: 14
Autores: ALBRECHT, J. C.; CARVALHO, W. P. de.
bitstream/CPAC-2009/27800/1/comtec_126.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Plant diseases.; Doença de Planta; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Beans; Disease resistance; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/563557

BRS Corisco reluz no nordeste brasileiro.
Provedor de dados: 14
Autores: OLIVEIRA, A. C. B. de; LANDGRAF, L.
Informações gerais. Informações agronômicas.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Melhoramento vegetal; Soybeans; Cultivars; Plant breeding.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/464584

Caracterização de cultivares de caupi (Vigna unguiculata (L.) Walp), em plantios no Acre.
Provedor de dados: 14
Autores: MARINHO, J. T. de S.; PEREIRA, R. de C. A.; COSTA, J. G. da.
A cultura do caupi vem passando por processos de melhoramento genético ao longo dos anos, de forma a acompanhar o desenvolvimento econômico social e o crescimento da população do Brasil. Com a modernização da agricultura as cultivares tradicionais foram substituidas por cultivares melhoradas, objetivando principalmente aumentar a produtividade da cultura para suprir a demanda de alimentos. Como conseqüência da introdução de cultivares melhoradas, cresce o desaparecimento progressivo de cultivares não melhoradas, em regiões de cultivos tradicionais, o que implica na extinção de germoplasmas de interesse para o melhoramento vegetal. A Embrapa Acre, preocupada com a preservação e utilização de materiais de caupi não melhorados cultivados no Estado, realizou...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cultivares primitivas; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Conservación del germoplasma; Razas nativas.; Caupi; Fitomejoramiento; Melhoramento genético vegetal; Feijão de corda; Vigna unguiculata; Espécie nativa; Germoplasma; Conservação; Características Agronômicas.; Plant breeding; Cowpeas; Agronomic traits; Landraces; Germplasm conservation.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/501750

Campo de observação da cultura da cebola (Allium cepa L.) no Acre.
Provedor de dados: 14
Autores: NUNES, M. U. C.; ARAUJO, H. M. de.
O cultivo da cebola representa uma necessidade para o Acre, uma vez que o Estado se abastece com o produto importado, sendo ofertado a preço elevados ao consumidor. Além da importação, as quantidades recebidas são inferiores à demanda, havendo sempre um déficit no mercado. Em busca de uma solução, a Embrapa, através da UEPAE/Rio Branco, desenvolve trabalhos de introdução de cultivares da cebola, melhoradas pelo Instituto de Pesquisas Agronômicas de Pernambuco (IPA). Ele tem o objetivo principal de verificar a viabilidade técnica de produzir cebola no Acre. Entre as cultivares testadas (IPA-1, IPA-2, IPA-3, IPA-4 e IPA-5), observaram-se diferenças de produção nas distintas épocas de plantio.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Aclimatación; Cebollas; Ensayos de variedades; Factores ambientales; Firomejoramiento.; Melhoramento genético vegetal; Cebola; Allium cepa; Comportamento de variedade; Aclimatação; Condição ambiental; Plant breeding; Onions; Variety trials; Acclimation; Environmental factors.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492322

Catálogo de videiras (Vitis spp.) conservadas na Embrapa Semiárido: uvas de mesa.
Provedor de dados: 14
Autores: LEAO, P. C. de S.
Neste trabalho, são apresentadas, informações sobre genótipos de uvas para mesa conservadas no BAG de Videira da Embrapa Semiárido. A publicação traz dados que abrangem, por exemplo, origem, caracterização físico-química dos frutos e fenologia de videiras provenientes desse BAG. Portanto, documenta parte relevante da diversidade disponível de características, que pode ser fonte para o desenvolvimento de tecnologias que ajudem a superar problemas que limitam ganhos de produtividade, incrementam perdas prejudicam a qualidade do produto final. Por conseguinte, está alinhada aos Objetivos de Desenvolvimento Sustentável (ODS) da Organização das Nações Unidade (ONU), especificamente contribuindo com aquele que trata da erradicação da fome e agricultura...
Tipo: Livros
Palavras-chave: Variabilidade genética; Uva de mesa; Vitis spp; BAG de uva de mesa; Consumo in natura; Uva; Banco de Germoplasma; Melhoramento Vegetal; Recurso Genético; Viticultura; Variedade; Vitis Vinifera; Genótipo.; Grapes; Seedless varieties; Plant breeding; Genetic resources; Viticulture.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144174

Mamão: o produtor pergunta, a Embrapa responde.
Provedor de dados: 14
Autores: DANTAS, J. L. L.; JUNGHANS, D. T.; LIMA, J. F. de.
Variedades e características da planta; Clima, solo, calagem e adubação; Propagação e produção de mudas; Plantio, tratos culturais e culturas intercalares; Irrigação e Fertirrigação; Doenças; Pragas; Colheita e pós-colheita; Formas de processamento; Comercialização, aspectos econômicos e custos de produção.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Melhoramento genético; Mamão; Fruta tropical; Plant breeding.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/976856

Novas cultivares de cafeeiros Coffea canephora para a Amazônia Ocidental Brasileira: Principais características.
Provedor de dados: 14
Autores: ESPINDULA, M. C.; TEIXEIRA, A. L.; ROCHA, R. B.; RAMALHO, A. R.; VIEIRA JUNIOR, J. R.; ALVES, E. A.; DIOCLECIANO, J. M.; LUNZ, A. M. P.; SOUZA, F. de F.; COSTA, J. N. M.; FERNANDES, C. de F.
Esse trabalho é resultado de 16 anos de pesquisa, iniciado no ano de 2003 a partir da hibridação controlada entre plantas matrizes das variedades Conilon e Robusta do Banco Ativo de Germoplasma da Embrapa. Dentre os avanços obtidos neste estudo, destacam-se: 1) o registro individual das novas cultivares; 2) a natureza híbrida das cultivares, resultado da recombinação entre variedades botânicas distintas e; 3) a riqueza de informações sobre cada cultivar. O objetivo nesta publicação é apresentar as principais características das novas cultivares para cultivo na Amazônia Sul Ocidental Brasileira.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Café Conilon; Nova cultivar; Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon; Coffea Canephora; Café Robusta; Hibridação; Características Agronômicas; Melhoramento Genético Vegetal; Banco de Germoplasma; Hybridization; New variety; Agronomic traits; Plant breeding; Germplasm.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112645

Tolerância à dessecação de sementes de espécies silvestres de maracujazeiro.
Provedor de dados: 14
Autores: AUD, F. F.; JUNGHANS, T. G.
O primeiro desafio para a conservação de lotes de sementes é a determinação de sua tolerância à dessecação. A partir desse conhecimento, é possível estabelecer as condições mais adequadas para o seu armazenamento, visando à conservação por períodos prolongados. Em ambientes em que a ocorrência de pragas e doenças pode contaminar grandes lotes de sementes ou em que há um grande volume de trabalho em laboratórios, a tomada de decisão sobre o armazenamento de materiais desconhecidos quanto à tolerância, a dessecação deve ser feita de maneira rápida e eficiente. Estabelecer protocolos de armazenamento e germinação para uma grande diversidade de genótipos pode ser uma tarefa muito demorada por causa das peculiaridades das sementes de cada espécie. Assim,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Maracujá; Melhoramento Genético Vegetal; Melhoramento Vegetal; Passion fruits; Breeding; Plant breeding.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1114668

Desempenho agronômico de híbridos de sorgo biomassa.
Provedor de dados: 14
Autores: PARRELLA, R. A. da C.; SCHAFFERT, R. E.; MAY, A.; EMYGDIO, B.; PORTUGAL, A. F.; DAMASCENO, C. M. B.
O objetivo deste trabalho foi caracterizar o potencial agronômico de híbridos de sorgo biomassa visando a geração de energia.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Recurso energético; Melhoramento genético vegetal; Etanol; Sorghum Bicolor.; Plant breeding; Energy resources; Ethanol.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/921130

Preliminar assay to establish a micropropagation protocol for mango (Mangifera indica, L.) cultivated in brazilian savannah.
Provedor de dados: 14
Autores: CORDEIRO, M. C. R.; BARRUETO, C. P. L.; PITO, A. C. Q.; GOMES, A. C.; ANDRADE, S. R. M.; VARGAS RAMOS, V. H.
bitstream/CPAC-2009/24171/1/p2002_60.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Tropical fruits.; Explante; Fruta Tropical; Manga; Mangifera Indica; Micropropagação; Melhoramento Vegetal; Propagação Vegetativa.; Explants; Plant propagation.; Micropropagation; Plant breeding.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567480

BRS Baliza RR - variação da cor do hilo das sementes.
Provedor de dados: 14
Autores: MOREIRA, C. T.; SOUZA, P. I. M. de; FARIAS NETO, A. L. de; ABUD, S.; TEIXEIRA, R. N.
bitstream/CPAC-2009/27711/1/p2006_44.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Seed.; Glycine Max; Melhoramento Vegetal; Semente; Variedade.; Soja; Plant breeding; Soybeans; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/563900

Pesquisa participativa em melhoramento de mandioca: uma experiencia no semi-arido do Nordeste do Brasil.
Provedor de dados: 14
Autores: FUKUDA, W. M. G.; MAGALHAES, J. A.; CAVALCANTI, J.; PINA, P. R.; TAVARES, J. A.; IGLESIAS, C.; HERNANDEZ ROMERO, L. A.; MONTENEGRO, E. E.
Este trabalho teve como objetivos provar conjuntamente com agricultores, extensionistas e pesquisadores uma metodologia complementar, denominada de pesquisa participativa em melhoramento de mandioca, que aplicada a clones em etapas avancadas de avaliacao, incremente a possibilidade de serem adotados pelos produtores, bem como estabelecer uma retroalimentacao entre estes seguimentos que permita identificar os principais criterios de selecao utilizados pelos produtores do semi-arido para a adocao de novas cultivares de mandioca. O trabalho foi desenvolvido em quatro locais do semi-arido dos Estados da Bahia (Itaberaba), Pernambuco (Petrolina e Araripina) e Ceara (Quixada), em parceria com a EBDA, IPA e EPACE. Iniciou-se com um diagnostico, seguido do...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Evaluation; Mandioca; Manihot Esculenta; Melhoramento Vegetal; Produtor; Variedade; Cassava; Farmers; Plant breeding; Varieties.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132104

Diferentes combinações de enxerto e porta-enxerto para laranjeiras em condições de terra roxa estruturada.
Provedor de dados: 14
Autores: RIBEIRO, S. I.; CARVALHO, E. J. M.
bitstream/item/32794/1/CPATU-BP194.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Porta-enxerto; Medicilandia; Pará; Brasil; Sweet oranges.; Fruticultura; Fruta Cítrica; Laranja; Melhoramento Genético Vegetal.; Amazonia; Fruit growing; Citrus fruits; Plant breeding; Rootstocks.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376616

Produção de mudas do maracujazeiro silvestre: Passiflora cincinnata Mast. BRS Sertão Forte (BRS SF).
Provedor de dados: 14
Autores: ARAUJO, F. P. de; MELO, N. F. de; FALEIRO, F. G.
Cultivar de maracujazeiro silvestre BRS Sertão Forte foi obtida por pesquisas desenvolvidas na Embrapa Semiárido (Petrolina, PE) em parceria com a Embrapa Cerrados (Planaltina, DF), resultante de um processo de seleção massal de uma população de acessos silvestres da espécie Passiflora cincinnata Mast. de diferentes origens, visando, principalmente, ao aumento da produtividade e do tamanho do fruto.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Passiflora cincinnata; Maracujá do mato; Planta nativa.; Maracuja; Melhoramento genético vegetal; Caatinga; Biodiversidade.; Fruit crops; Vegetation; Plant breeding.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1046332

Substituição de copa de cupuaçuzeiro: estudo de caso de agricultores de Tomé-Açu, Pará.
Provedor de dados: 14
Autores: MODESTO JUNIOR, M. de S.; ALVES, R. N. B.; ALVES, R. M.
bitstream/item/198547/1/TC-13-18-DOC-Ainfo.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Theobroma Grandiflorum; Reprodução Vegetal; Sistema de Produção; Produção; Plant breeding.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1109859

BRS FC310: cultivar de feijoeiro-comum carioca, semiprecoce e com ampla resistência às doenças.
Provedor de dados: 14
Autores: MELO, L. C.; PEREIRA, H. S.; SOUZA, T. L. P. O. de; FARIA, L. C. de; AGUIAR, M. S. de; WENDLAND, A.; CARVALHO, H. W. L. de; ALMEIDA, V. M. de; MELO, C. L. P. de; COSTA, A. F. da; ITO, M. A.; PEREIRA FILHO, I. A.; POSSE, S. C. P.; MAGALDI, M. C. de S.; KNUPP, A. M.; CABRERA DIAZ, J. L.; COSTA, J. G. C. da; MARTINS, M.; GUIMARÃES, C. M.; VIANELLO, R. P.; MARANGON, M. A.; SARMENTO, P. H. L.; TRINDADE, N. L. S. R.; MELO, P. G. S.; BRAZ, A. J. B. P.; SOUZA, N. P. de; FARIA, J. C. de.
A cultivar BRS FC310 originou-se do cruzamento entre as linhagens GX 9792-251-2 e ESAL 693, realizado na Embrapa Arroz e Feijão, em Santo Antônio de Goiás, GO, em 2002, ano no qual a geração F1 da população foi semeada em telado. Em 2003, na safra de inverno, a geração F2 foi semeada em campo, em Santo Antônio de Goiás, GO, em bulk, e realizada a seleção para arquitetura de plantas. Na safra da seca de 2004 foi realizado o avanço da população na geração F3, em Ponta Grossa, PR, em bulk, para a seleção de plantas individuais baseada na resistência à antracnose, à ferrugem e ao crestamento-bacteriano-comum. Na safra de inverno, ainda em 2004, as progênies na geração F3:4 foram semeadas em Santo Antônio de Goiás, GO, em linhas individuais e feita a seleção...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: BRS FC310; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Beans; Plant breeding; Varietal resistance.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129383

Protocolo para identificação de híbridos de amendoim forrageiro utilizando marcador molecular microssatélite.
Provedor de dados: 14
Autores: CAMPOS, T. de; AZÊVEDO, H. S. F. da S.; OLIVEIRA, J. C. de; FERREIRA FILHO, J. A.; YOMURA, R. B. T.; SILVA, L. M. da.
A pecuária na Amazônia representa uma cadeia produtiva importante para pequenos, médios e grandes produtores, uma vez que mais de 80% das áreas desmatadas são ocupadas por pastagens e cerca da metade delas encontra-se degradada ou em vias de degradação. A utilização de pastagens consorciadas pode ser uma alternativa de recuperação, manutenção da produtividade por um período maior e redução do tempo dos animais no pasto. Essa tecnologia tem sido amplamente defendida e utilizada pelos pecuaristas. A utilização do amendoim forrageiro em consórcio com gramíneas em pastagens tem mostrado resultados bastante significativos em relação ao aumento na rentabilidade e melhoria das condições do pasto. No entanto, ainda há baixa oferta de cultivares no mercado. No...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Amendoim forrageiro; Forage peanut; Cacahuete forrajero; Marcador microssatélite; Genotipagem; Fitomejoramiento; Marcadores genéticos.; Genotipificación; Híbridos; Leguminosas forrajeras; Melhoramento genético vegetal; Leguminosa forrageira; Marcador molecular; Híbrido; Plant breeding; Forage legumes; Genetic markers; Hybrids; Genotyping; Arachis pintoi.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1064915

Ensaio comparativo avançado de arroz de sequeiro em Capitão Poço, Pará - ano agrícola 1998/1999.
Provedor de dados: 14
Autores: LOPES, A. de M.
bitstream/item/52949/1/PesquisaAnd0150001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Arroz de sequeiro; Maravilha; Progresso; Xingu; Capitão Poço; Pará; Brasil; Upland rice.; Linhagem; Melhoramento Genético Vegetal; Variedade.; Amazonia; Plant breeding; Progeny; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374446

Sistema de acasalamento de P. hispidinervum C.DC., em uma população natural de Assis Brasil, AC.
Provedor de dados: 14
Autores: WADT, L. H. de O.; KAGEYAMA, P. Y.
O presente trabalho foi desenvolvido com a finalidade de se estimar o sistema preferencial de cruzamento e o coeficiente de endogamia, via marcador de DNA, de uma população natural de pimenta longa, no Vale do Acre.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Endogamy; Variación genética; Fitomejoramiento; Técnica de ADN polimórfico amplificado al azar; Marcador RAPD; Assis Brasil (AC); Vale do Rio Acre; Isolamento por distância; Amazônia Ocidental; Acre; Amazonia Occidental.; Western Amazon; Pimenta Longa; Piper Hispidinervum; Marcador Genético; População de Planta; Variação Genética; Endogamia; Melhoramento Genético Vegetal.; Piper longum; Plant breeding; Genetic markers; Genetic variation; Random amplified polymorphic DNA technique.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117274

Melhoramento vegetal e recursos genéticos forrageiros.
Provedor de dados: 14
Autores: ROCHA, J. E. da S.
A criação animal no Brasil é predominantemente extensiva em pastos cultivados ou nativos a depender da região. No semiárido a limitação de precipitação pluviométrica dificulta a manutenção de pastos cultivados, e a dependência pela vegetação nativa se torna maior. Embora exista inúmeras opções de gramíneas e leguminosas forrageiras que podem enriquecer a pastagem nativa, na região semiárida as opções disponíveis nos mercados formais são restritas e muitas vezes as sementes comercializadas não são validadas para a região. Para disponibilizar aos produtores forrageiras adaptadas às condições de manejo e clima, programas de melhoramento genético de forrageiras devem avaliar os acessos presentes em Banco Ativo de Germoplasma da Embrapa e de instituições...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Melhoramento genético vegetal; Recurso genético; Planta forrageira; Genetic resources; Plant breeding; Genetic improvement.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1007405

Progressos do melhoramento genético do trigo irrigado no Cerrado de Minas Gerais
Provedor de dados: 14
Autores: CARGNIN, A.; SOUZA, M. A. de; FRONZA, V.; ALBRECHT, J. C.; SILVA, M. S. e; SOARES SOBRINHO, J.; YAMANAKA, C. H.; FOGAÇA, C. M.
Os progressos obtidos pelos programas de melhoramento do trigo irrigado foram avaliados, utilizando-se os dados de produtividade de grãos obtidos nos ensaios de valor de cultivo e uso conduzidos no Estado de Minas Gerais. Para a estimativa do progresso genético e ambiental, foi utilizada a metodologia de Vencovsky et al. (1986) colaboradores. O progresso genético médio anual estimado no período de 1976 a 2005 foi de 48 kg ha-1 ano-1 (1,84 % ao ano) na produtividade média de grãos. O progresso genético, em produtividade, obtido no período estudado, indica que os programas de melhoramento de trigo irrigado são eficientes. Apesar de o progresso genético ter contribuído expressivamente, as melhorias ambientais e tecnológicas foram importantes para o acréscimo...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Melhoramento genético; Triticum aestivum L.; Cerrado; Trigo.; Wheat; Plant breeding.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/659419

Umbuzeiro: avanços e perspectivas.
Provedor de dados: 14
Autores: DRUMOND, M. A.; AIDAR, S. de T.; NASCIMENTO, C. E. de S.; OLIVEIRA, V. R. de.
O umbuzeiro, frutífera endêmica da Caatinga, desponta como uma das alternativas, sendo responsável pela complementação de renda de muitas famílias de agricultores do Semiárido. Para contribuir com o conhecimento sobre essa espécie, estão reunidos, nesta obra, experiências, tecnologias e produtos gerados pela programação de Pesquisa, Desenvolvimento e Inovação da Embrapa Semiárido, nas últimas décadas, com o objetivo de consolidar a cadeia produtiva do umbuzeiro e inserir seus derivados nos mercados nacional e internacional. O livro apresenta-se com o seguinte sumário: Capítulo 1. Caracterização ambiental do Semiárido brasileiro; Capítulo 2. Caracterização botânica e biologia reprodutiva; Capítulo 3. Recursos genéticos; Capítulo 4. Ecofisiologia; Capítulo...
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Umbuzeiro; Spondias tuberosa Arruda; Biodiversdiade; Ecofisiologia; Fruticultura da biodiversidade; Fruticultura da Caatinga; Fruit tree; Plant phenology; Umbu; Vegetação nativa; Botânica; Caatinga; Biodiversidade; Melhoramento genético vegetal; Melhoramento vegetal; Reprodução vegetal; Propagação vegetativa; Tecnologia de alimento; Mercado; Conservação; Pós-Colheita; Spondias; Dry forests; Savannas; Plant breeding.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1046431

Estudo para o melhoramento do sistema cultural da soja no cerrado.
Provedor de dados: 14
Autores: IZUMIYAMA, Y.
bitstream/item/178527/1/ID09931-CRI1513.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Termoind; Cultivo; Cultivation; Japão; Brasil; BIBJICACPAC.; Cerrado; Glycine Max; Melhoramento Vegetal; Soja; Pesquisa; Cooperação Internacional.; Plant breeding; Soybeans.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/552989

BRS FC414: cultivar de feijoeiro-comum com alta produtividade e qualidade comercial indicada para cultivo sob pivô central.
Provedor de dados: 14
Autores: MELO, L. C.; SOUZA, T. L. P. O. de; AGUIAR, M. S. de; FARIA, L. C. de; COSTA, J. G. C. da; MAGALDI, M. C. de S.; SOUZA, N. P. de; KNUPP, A. M.; GUIMARÃES, C. M.; CARVALHO, H. W. L. de; ALMEIDA, V. M. de; ITO, M. A.; ALBRECHT, J. C.; MARTINS, S. M.; TORGA, P. P.; POSSE, S. C. P.; MELO, P. G. S.; ABREU, A. de F. B.; CARVALHO, A. J. de; MARTINS, M.; PEREIRA FILHO, I. A.; BRAZ, A. J. B. P.; CABRERA DIAZ, J. L.; MARANGON, M. A.; SARMENTO, P. H. L.; OLIVEIRA, L. F. C. de; VIANELLO, R. P.; FARIA, J. C. de; PEREIRA, H. S.
BRS FC414 se destaca pela excelente qualidade comercial dos grãos, possuindo arquitetura ereta e moderada resistência à murcha de Fusarium e a podridões radiculares, possibilitando a utilização em áreas de cultivo sob pivô central. 2) De acordo com o desempenho, BRS FC414 é recomendada para as épocas das águas e da seca na região II (Mato Grosso do Sul, Paraná, Santa Catarina, São Paulo e Rio Grande do Sul); das águas, da seca e de inverno na região I (Goiás, Mato Grosso, Tocantins, Maranhão, Bahia, Espírito Santo, Rio de Janeiro e o Distrito Federal); e para a época das águas na região III (Sergipe, Alagoas, Pernambuco, Rio Grande do Norte, Piauí, Ceará e Paraíba).
Tipo: Folhetos
Palavras-chave: BRS FC414; Selo ODS 2; Selo ODS 12; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Irrigação por Pivô Central; Beans; Plant breeding; New variety; Irrigation.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1145698

Seleção de germoplasma de açaizeiro promissor para frutos.
Provedor de dados: 14
Autores: OLIVEIRA, M. do S. P. de; MULLER, A. A.
bitstream/item/57722/1/CPATU-PA191.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Belém; Pará; Brasil; Selection.; Açaí; Euterpe Oleracea; Fruta; Germoplasma; Melhoramento Genético Vegetal; Produtividade; Seleção.; Amazonia; Germplasm; Fruits; Plant breeding; Yields.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375200

Indicação da cultivar de soja BRS Raimunda para Goiás e Distrito Federal.
Provedor de dados: 14
Autores: SOUZA, P. I. M. de; MOREIRA, C. T.; FARIAS NETO, A. L. de; SILVA, S. A. da ALMEIDA, L. A.; SILVA, J. F. V.; YORINORI, J. T.; NUNES JÚNIOR, J.; MONTEIRO, P. M. F. O.; ASSUNÇÃO, M. S.; ARANTES, N. E.
ABSTRACT: The soybean cultivar BRS Raimunda is a result a Group Work formed by researcher of Embrapa Cerardos in conjunction with Embrapa Soja, with significant finantial support of Cerrados Fundation. In term of genealogy BRS Raimunda originated of a cross between Braxton X BR93-31857 and it was developed by modified genealogical and method of plant breeding. In the final research tests for variety release to the farms, the cultivars BRS Raimunda was superior in terms of grain production than the cultivars tests such as M-SOY 8800, DM 339 and Uirapuru. BRS Raimunda is a late cultivar indicated to the Cerrado Biome of Goias State and Federal District. Besides the high productivity and stability, the cultivar presents also resistence to the root-knot such...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: BRS Raimunda; Melhoramento genético; Brasil; Plant galls; Plant diseases.; Cerrado; Doença de Planta; Galha; Glycine Max; Nematóide; Soja; Variedade Resistente.; Nematoda; Brazil; Disease resistance; Plant breeding; Soybeans.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/555740

BRS FC409: cultivar de feijoeiro-comum com alto valor comercial e nutricional, resistência à murcha de Fusarium e à murcha de Curtobacterium.
Provedor de dados: 14
Autores: PEREIRA, H. S.; MELO, L. C.; SOUZA, T. L. P. O. de; FARIA, L. C. de; CABRERA DIAZ, J. L.; CARVALHO, H. W. L. de; MELO, C. L. P. de; COSTA, A. F. da; MAGALDI, M. C. de S.; KNUPP, A. M.; POSSE, S. C. P.; COSTA, J. G. C. da; WENDLAND, A.; ABREU, A. de F. B.; PEREIRA FILHO, I. A.; MARTINS, M.; ALBRECHT, J. C.; ALMEIDA, V. M. de; GUIMARÃES, C. M.; BRAZ, A. J. B. P.; MARANGON, M. A.; CARVALHO, A. J. de; MELO, P. G. S.; TRINDADE, N. L. S. R.; SOUZA, N. P. de; FARIA, J. C. de; CALGARO, M.; AGUIAR, M. S. de.
A cultivar de feijão-comum BRS FC409 tem grãos do tipo carioca, com alto valor comercial e nutricional, apresentando bom nível de resistência à murcha de Fusarium e à murcha de Curtobacterium, e resistência intermediária à antracnose, ao crestamento-bacteriano-comum e à mancha-angular. É indicada para semeadura nos seguintes estados e épocas de cultivo: época das águas, da seca e de inverno, nos estados de Goiás, Espírito Santo, Rio de Janeiro, Bahia, Mato Grosso, Tocantins e no Distrito Federal; época das águas e da seca, em Mato Grosso do Sul, Paraná, Santa Catarina, São Paulo e Rio Grande do Sul; e época das águas, em Sergipe, Alagoas e Pernambuco.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Murcha de Curtobacterium; Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade Resistente; Murcha de Fusarium; Beans; Plant breeding; Disease resistance; Varietal resistance.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124686

Seleção de plantas individuais com teste de progenies nas cultivares de malva BR-01 e BR-02.
Provedor de dados: 14
Autores: SILVA, J. F. da; BARRIGA, R. H. M. P.
bitstream/item/60312/1/CPATU-PA85.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Melhoramento genético; Selection.; Malva; Seleção; Urena Lobata.; Teste de Progênie; Plant breeding; Progeny testing.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381630

Obtenção de cultivares de malva sem dormência nas sementes com boa produção e boa qualidade de fibra.
Provedor de dados: 14
Autores: SILVA, J. F. da; MOTA, M. G. da C.
bitstream/item/60208/1/CPATU-PA155.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Selection.; Competição de Variedade; Malva; Melhoramento; Seleção; Urena Lobata.; Plant breeding; Variety trials.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374169

Avaliação e caracterização de cultivares de abacaxi no Acre.
Provedor de dados: 14
Autores: RITZINGER, R.
No Estado do Acre podem ser encontradas diversas cultivares de abacaxi sob cultivo. Através da caracterização e avaliação das cultivares locais, se pode selecionar as melhores para futuros plantios e assim aumentar a produtividade e melhorar a qualidade dos frutos produzidos. O trabalho foi realizado em duas etapas. Na primeira, de agosto a dezembro/86 e de setembro a outubro/87, foi feito um levantamento das cultivares junto a produtores dos municípios de Rio Branco, Senador Guiomard, Xapuri, Brasiléia, Tarauacá, Cruzeiro do Sul e Mâncio Lima. Na segunda etapa, foi instalado um experimento de competição reunindo oito cultivares locais e a Smooth Cayenne como testemunha. O plantio foi realizado em outubro/87. O delineamento experimental utilizado foi o de...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Smooth Cayenne; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Calidad de la fruta; Fitomejoramiento; Piñas; Variedades de rendimiento elevado; Melhoramento genético vegetal; Abacaxi; Ananas comosus; Fruto; Qualidade; Variedade resistente; Competição de variedade; Características Agronômicas; Plant breeding; Pineapples; Fruit quality; Agronomic traits; High-yielding varieties.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492203

Biodiversidade e produção sustentável de alimentos e fibras nos Cerrados: anais.
Provedor de dados: 14
Autores: SIMPÓSIO SOBRE O CERRADO, 8.; INTERNATIONAL SYMPOSIUM ON TROPICAL SAVANNAS, 1., 1996, Brasilia, DF.
O Brasil e um dos paises com maior diversidade genetica, respondendo por cerca de 30% das plantas e especies animais que ocorrem no mundo. Dentre os diferentes biomas brasileiros, os Cerrados, com seus 207 milhoes de hectares, apresenta uma grande diversidade faunistica e floristica em suas diferentes fisionomias vegetais. Ate meados deste seculo esta regiao era considerada como marginal para producao agricola, no entanto, devido ao desenvolvimento da pesquisa e de tecnologias agricolas que viabilizaram sua utilizacao em bases economicas, hoje ela e responsavel pela producao de cerca de 35% de graos e carnes do pais. O modelo de ocupacao da terra utilizado, baseado no uso intensivo de insumos e maquinas pesadas, se de um lado, no ultimos vinte anos,...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agricultura sustentada; Fibres; Sustainability; Plant production; Feed crops; Socioeconomic organization; Brasil; Japão; BIBJICACPAC; Alimento; Cerrado; Fertilidade do Solo; Fibra; Floresta; Manejo do Solo; Melhoramento Vegetal; Pastagem; Planta Forrageira; Produção; Produção Animal; Produção Vegetal; Recurso Natural; Silvicultura; Cooperação Internacional; Pesquisa; Biodiversidade; Desenvolvimento Socio-Econômico; Animal production; Biodiversity; Food production; Forestry; Natural resources; Pastures; Plant breeding; Savannas; Silviculture; Soil fertility; Soil management.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551822

Melhoramento de plantas de interesse economico para a regiao amazonica atraves de tecnicas "in vitro".
Provedor de dados: 14
Autores: LEMOS, O. F. de; LAMEIRA, O. A.; MENEZES, I. C. de; MOTA, M. G. da C.; OKA, S.; SAITO, T.; SATO, M.; HIDAKA, T.; KOBAYASHI, S.
bitstream/item/67072/1/CPATU-Doc90P11.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil.; Calo; Melhoramento Genético Vegetal; Propagação Vegetativa.; Amazonia; Callus; Plant breeding; Vegetative propagation.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/395074

Introducao e avaliacao de linhagens e cultivares de cevada irrigada no cerrado.
Provedor de dados: 14
Autores: VALENTE, C. M. W.; AMABILE, R. F.
bitstream/CPAC-2009/24383/1/p2003_36.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Avaliacao; Evaluation; Agronomic characteres.; Características Agronômicas; Cevada; Cultura Irrigada; Hordeum Vulgare; Linhagem; Melhoramento Genético Vegetal.; Barley; Irrigated farming; Plant breeding; Progeny.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/566608

Variabilidade genética de acessos de maracujá-suspiro com base em marcadores moleculares.
Provedor de dados: 14
Autores: JUNQUEIRA K. P.; FALEIRO, F. G.; RAMOS, J. D.; BELLON, G.; JUNQUEIRA, N. T. V.; BRAGA, M. F.
bitstream/item/75754/1/art-008.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Passin fruits.; Maracujá; Passiflora edulis; Genética vegetal; Marcador molecular; Plant breeding; Genetic markers.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571715

Compatibilidade genética entre o maracujazeiro-azedo comercial (Passiflora edulis f. flavicarpa) e espécies de passifloras silvestres.
Provedor de dados: 14
Autores: LAGE, D. A. C.; JUNQUEIRA, N. T. V.; BORGES, T. A.; BRAGA, M. F.; FALEIRO, F. G. BELLON, G.; ALENCAR, C. M.
bitstream/CPAC-2009/26864/1/p2005_55.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Crosbreeding.; Cruzamento; Maracujá; Método de Melhoramento; Melhoramento Vegetal; Passiflora Edulis; Reprodução Vegetal; Variedade Resistente.; Disease resistance; Breeding methods; Plant propagation.; Plant breeding; Passion fruits.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569478

Tamanho amostral e detecção de genes via GWAS em características quantitativas do cafeeiro.
Provedor de dados: 14
Autores: RESENDE, M. D. V. de; OLIVEIRA, A. C. B. de; CAIXETA, E. T.; ALKIMIM, E. R.; SOUSA, T. V.; PEREIRA, A. A.; ALVES, R. S.; AZEVEDO, C. F.
O presente documento refere-se à avaliação prática do potencial da GWAS no melhoramento dos cafeeiros das espécies Coffea arabica e Coffea canephora. O objetivo geral é orientar a aplicação eficiente da GWAS em características produtivas, agronômicas e de resistência a doenças e pragas do cafeeiro. Para isso, um novo método para o estudo de associações genômicas foi desenvolvido e avaliado via simulação, em termos de poder de detecção de genes. O objetivo específico é possibilitar a identificação de marcadores genéticos úteis ao melhoramento do cafeeiro.
Tipo: Folhetos
Palavras-chave: Melhoramento Genético Vegetal; Seleção Genética; Cafeicultura; Coffea Arábica; Coffea Canephora; Genome-wide association study; Plant breeding.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1142431

Melhoramento genético, registro e proteção de cultivares de Coffea canephora para o Estado de Rondônia.
Provedor de dados: 14
Autores: TEIXEIRA, A. L.; ROCHA, R. B.; RAMALHO, A. R.
O melhoramento genético do Coffea canephora objetivando a seleção de genótipos de ‘Conilon’ e ‘Robusta’ mais produtivos, tolerantes aos principais patógenos e adaptados às condições edafoclimáticas da região é de grande importância para impactar a cadeia produtiva do café no Estado de Rondônia. Tão importante quanto a obtenção da cultivar, é o seu registro e/ou proteção. Todas essas etapas fazem parte do processo de desenvolvimento e lançamento da cultivar, para que a mesma seja disponibilizada aos agricultores.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Café Conilon; Rondônia; Western Amazon; Amazônia Ocidental; Amazonia Occidental.; Café; Cafeicultura; Seleção Genótipa.; Regulamentação; Variedade; Coffea Canephora; Melhoramento Genético Vegetal; Café Robusta; Selection criteria.; Genotype; Plant variety protection; Coffee beans; Coffea; Plant breeding.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/922539

Embriogênese somática e regeneração de plantas em açaizeiro.
Provedor de dados: 14
Autores: LEDO, A. da S.; LAMEIRA, O. A.; MENEZES, I. C. de.
O objetivo do presente trabalho foi estudar as diferentes respostas morfogenéticas de embriões zigóticos de açaizeiro (Euterpe oleracea Mart.) submetidos a várias condições de cultura in vitro. Os experimentos foram conduzidos em laboratório com material vegetal coletado de plantas de açaí na Embrapa Amazônia Oriental, Belém, PA, Brasil. Verificou-se a expressão de um modelo de embriogênese somática, direto, repetitivo a assincronizado em embriões zigóticos maduros cultivados em meio primário MS suplementado com 339.36 ? M de 2,4-diclorofenoxiacético (2,4-D) e transferidos para meio secundário MS na presença de 0,537 ? M de ácido 1-naftalenoacético (ANA) e 12,30 ? M de 2-isopenteniladenina (2iP). A conversão de embriões somáticos em plântulas foi alcançada...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Açaí de touceira; Embrapa Amazônia Oriental; Belém (PA); Pará; Eastern Amazon; Amazônia Oriental; Micropropagación.; Cultivo in vitro; Fitomejoramiento; Embriogénesis; Melhoramento genético vegetal; Açaí; Euterpe oleracea; Cultura in vitro; Embriogênese.; Micropropagação; Embryogenesis.; Micropropagation; Plant breeding; In vitro culture.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/496030

Diversidade genética em cultivares de arroz.
Provedor de dados: 14
Autores: CARGNIN, A.; SOUZA, M. A. de.
RESUMO: O objetivo deste trabalho foi estimar a diversidade genética das cultivares de arroz mais utilizadas em cultivo no período de 1950 a 2001. Foram conduzidos dois experimentos de campo, nas localidades denominadas Aeroporto e Agronomia, ambas pertencentes à Universidade Federal de Viçosa, em Viçosa, MG. Os experimentos foram conduzidos no delineamento de blocos ao acaso com três repetições. Avaliaram se as 25 cultivares mais plantadas no período de 1950 a 2001. Foram coletados e analisados os dados referentes a produção de grãos, altura das plantas, dias para a floração, estande inicial, estande final, perfilhamento útil, grãos por panícula, percentagem de espiguetas estéreis por panícula e peso médio de grão. As cultivares Guarani e Bico Ganga foram...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Arroz; Melhoramento Genético Vegetal; Oryza Sativa; Variedade.; Variação Genética; Genetic variation; Plant breeding; Rice; Varieties.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/572282

BRS Requinte: cultivar de feijoeiro comum de tipo de grão carioca com maior retardamento do escurecimento do grão para o Distrito Federal e Goiás.
Provedor de dados: 14
Autores: ALBRECHT, J. C.; CARVALHO, W. P. de.
bitstream/CPAC-2009/27801/1/comtec_124.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Plant diseases.; Doença de Planta; Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade; Variedade Resistente.; Disease resistance; Beans; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570256

Maracujá: germoplasma e melhoramento genético.
Provedor de dados: 14
Autores: FALEIRO, F. G.
bitstream/CPAC-2010/29225/1/art-004.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Fruta tropical; Maracujá; Passiflora edulis; Melhoramento genético vegetal; Tropical and subtropical fruits; Passion fruits; Plant breeding.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571972

Avaliação de linhagens de feijoeiro comum nos anos de 2003 e 2004, nas condições de Cerrado do Distrito Federal.
Provedor de dados: 14
Autores: CARVALHO, W. P. de.
RESUMO: No biênio 2003/2004, foram conduzidos no Distrito Federal pela Embrapa Cerrados os ensaios VCU como parte da rede nacional de melhoramento de feijão, cuja avaliação de linhagens de feijoeiro comum visa à recomendação para o plantio na região dos Cerrados. O objetivo desse VCU é indicar cultivares de feijão de alto potencial produtivo e resistência às principais pragas e doenças, melhor arquitetura para colheita mecânica e com boas qualidades culinárias. As linhagens foram agrupadas de acordo com a cor dos grãos (carioca, preto e grupo diversos que compõe os tipos roxo, vermelho e rosinha). As linhagens do grupo carioca foram CNFC 9435, CNFC 9458, CNFC 9461, CNFC 9471, CNFC 9484, CNFC 9494, CNFC 9500, CNFC 9504, CNFC 9506, CNFC 9518 e CNFE 8009,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade Resistente.; Beans; Plant breeding; Varieties.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571494

BRS Pétala soybean cultivar.
Provedor de dados: 14
Autores: SOUZA, P. I. M.; MOREIRA, C. T.; FARIAS NETO, A. L.; ALMEIDA, L. A.; KIIHL, R. A. S.; FARIA, L. C.; ARANTES, N. E.; SPEHAR, C. R.; ABUD, S.; NUNES JÚNIOR, J.
bitstream/CPAC-2009/25330/1/p2004_47.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Glycine Max; Melhoramento Vegetal; Soja; Variedade; Variedade Resistente.; Disease resistance; Plant breeding; Varieties.; Soybeans.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568303

'ES8122' - Jequitibá: nova variedade clonal de café conilon de maturação intermediária para o Espírito Santo.
Provedor de dados: 14
Autores: FERRÃO, R. G.; FERRAO, M. A. G.; FONSECA, A. F. A. da; VOLPI, P. S.; VERDIN FILHO, A. C.; LANI, J. A.; MAURI, A. L.; TÓFFANO, J. L.; TRAGINO, P. H.; BRAVIM, A. J. B.; MORELLI, A. P.
A variedade "ES8122- Jequitibá" foi obtida do Programa de Melhoramento Genético do Incaper em parceria com a Embrapa Café e o apoio do Consórcio Pesquisa Café, com a utilização de diferentes estratégias de melhoramento e de experimentos conduzidos nas fazendas experimentais de Marilândia, Sooretama e Bananal do Norte, localizadas em ambientes representativos de cultivo do café conilon, das regiões noroeste, nordeste e sul do Espírito Santo, respectivamente.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Conilon; Variedade; Coffea Canephora; Melhoramento Genético Vegetal; Plant breeding; Coffea canephora var. laurentii.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123772

Aspectos sobre o melhoramento da soja [Glycine max (L.) Merrill].
Provedor de dados: 14
Autores: GILIOLI, J. L.; ALMEIDA, L. A.; KIIHL, R. A. S.
Objetivos do melhoramento da soja e fonte de genes; Metodos de melhoramento; Producao de semente genetica; Avaliacao de cultivares e linhagens; Recomendacao de cultivares.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Soja; Variedade; Melhoramento genético vegetal; Soybeans; Cultivars; Plant breeding.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445402

Ensaio comparativo avançado de arroz irrigado (várzea) em Belém, Pará - ano agrícola 1998/1999.
Provedor de dados: 14
Autores: LOPES, A. de M.; MASCARENHAS, R. E. B.
bitstream/item/52944/1/PesquisaAnd0180001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: BR IRGA 409; CICA 8; METICA 1; Belem; Pará; Brasil; Irrigated rice; Flooded land.; Arroz Irrigado; Linhagem; Melhoramento Genético Vegetal; Variedade; Várzea.; Amazonia; Plant breeding; Progeny; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374286

Melhoramento vegetal participativo com ênfase na eficiência nutricional.
Provedor de dados: 14
Autores: MACHADO, A. T.; MACHADO, C. T. de T.
ABSTRACT: Participatory plant breeding uses a concept that joint formal (official researches institutions) and informal sector (farmers communities), combining the capabilities and the knowledge of both, and farmer's experiences, practices, and preferences. The goal is to join the yield improvement exploring the availabel farmer's agrobiodiversity and introduction new sources of genetic materials. Another goal is to develop the farmer's capability to select and to interchange seeds. Generally, participatory breeding has been used in areas under stress conditions. These areas are usually related with agriculture of subsistence, where farmer's do not have funds to buy seeds, fertilizers, and pesticides. Small farmers need varieties adapted to their specific...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Maize.; Genética Vegetal; Melhoramento Genético Vegetal; Milho; Produtividade; Variedade; Zea Mays.; Crop yield; Genetics; Plant breeding; Varieties.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568937

Técnicas de propagação para plantas de melancia: ferramentas úteis no melhoramento genético da cultura.
Provedor de dados: 14
Autores: SOUZA, F. de F.
O presente trabalho tem como objetivo descrever sucintamente as principais técnicas de propagação de plantas de melancia, enfatizando aquelas com maior potencial de aplicação nos programas de melhoramento que visem a obtenção de linhagens tetraplóides e híbridos triplóides.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Wild melon.; Melancia; Citrullus Lanatus; Propagação Vegetativa; Melhoramento Genético Vegetal.; Vegetative propagation.; Plant breeding.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/927693

Cultivar de soja BR-16.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Características botânicas e agronômicas; Características; Reação a enfermidades; Resultados; Recomendações e informções.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar BR-16; Brasil; Paraná; Soybean.; Melhoramento; Variedade; Soja.; Brazil; Plant breeding; Varieties.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444326

Cultivar de trigo BRS Gaivota: características e desempenho agronômico.
Provedor de dados: 14
Autores: BASSOI, M. C.; FOLONI, J. S. S.
Desenvolvimento da cultivar. Características morfológicas. Características agronômicas. Dormência e germinação pré-colheita. Qualidade industrial.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Trigo; Variedade; Wheat; Varieties; Plant breeding; Cultivars.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1012540

Variacao da cor do hilo, em sementes de cultivares de soja submetidas a diferentes condicoes de temperatura ambiente e umidade do solo.
Provedor de dados: 14
Autores: FRANCA NETO, J. de B.; MOREIRA, C. T.; KRZYZANOWSKI, F. C.; COSTA, N. P. da; SOUZA, P. I. M.; ALMEIDA, L. A.; HENNING, A. A.
bitstream/CPAC-2009/24352/1/p2002_05.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Seed.; Glycine Max; Melhoramento Vegetal; Semente; Variedade.; Soja; Plant breeding; Soybeans; Varieties.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567652

Diversidade genética e desempenho agronômico de híbridos de cajueiro: recursos para o melhoramento genético.
Provedor de dados: 14
Autores: HAWERROTH, M. C.; BORDALLO, P. do N.; VIDAL NETO, F. das C.; MELO, D. S.
A implantação de cajueirais com clones anões-precoces geneticamente superiores representa uma possibilidade de mudança efetiva no cenário produtivo nacional, uma vez que facilita o manejo adequado da planta, uma maior uniformidade na qualidade de castanhas e pseudofrutos e o aumento expressivo na produtividade, que, em regime de sequeiro, pode ser superior a 1.000 kg ha-1 de castanhas (Martins Junior et al., 2008; Vidal Neto et al., 2013), elevando assim a rentabilidade da atividade. Entretanto, a busca por clones superiores, em produtividade e características exigidas pelo mercado, pode ocasionar, muitas vezes, a redução da base genética e a consequente redução da capacidade de resposta aos efeitos adversos do ambiente. Conjuntamente, a caracterização...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cajueiro; Caju; Anacardium Occidentale; Cashew fruit; Plant breeding; Hybrids.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124548

Estimativas de volume de pinus caribaea var. hondurensis no Cerrado do Distrito Federal, DF.
Provedor de dados: 14
Autores: MORAES NETO, S. P. de.
O presente trabalho teve como objetivo testar vários modelos matemáticos que expressam a relação entre o volume com diâmetro à altura do peito de troncos de Pinus caribaea var. hondurensis e a altura comercial, e selecionar o modelo de melhor ajuste e precisão. Foram ajustados nove modelos tradicionais utilizados no setor florestal. A seleção do melhor modelo foi baseada nos seguintes critérios: coeficiente de determinação ajustado, erro padrão da estimativa e análise gráfica de resíduos. Concluiu-se que o melhor modelo para expressar o volume individual de árvores, com e sem casca, foi o de Meyer, no Cerrado do DF.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Pinus caribaea hondurensis.; Cerrado; Madeira; Melhoramento vegetal.; Wood; Plant breeding.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/661391

'Centenária ES8132': nova variedade clonal de café conilon de maturação tardia para o Espírito Santo.
Provedor de dados: 14
Autores: FERRÃO, R. G.; FERRAO, M. A. G.; FONSECA, A. F. A.; VOLPI, P. S.; VERDIN FILHO, A. C.; LANI, J. A.; MAURI, A. L.; TÓFFANO, J. L.; TRAGINO, P. H.; BRAVIM, A. J. B.; MORELLI, A. P.
A variedade "Centenária - ES8132" foi obtida do Programa de Melhoramento Genético do Incaper em parceria com a Embrapa Café e o apoio do Consórcio Pesquisa Café, com a utilização de diferentes estratégias de melhoramento e de experimentos conduzidos nas fazendas experimentais de Marilândia, Sooretama e Bananal do Norte, localizadas em ambientes representativos de cultivo do café conilon, das regiões noroeste, nordeste e sul do Espírito Santo, respectivamente.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Conilon; Variedade; Melhoramento Genético Vegetal; Coffea Canephora; Clone; Plant breeding; Coffea canephora var. laurentii.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123773

Avaliacao do fluxo genico entre a cultivar de soja BR-16 transgenica e BR-16 nao-transgenica no ecossistema do Cerrado no Distrito Federal.
Provedor de dados: 14
Autores: ABUD, S.; SOUZA, P. I. M.; MOREIRA, C. T.; VIANNA, G. R.; ANDRADE, S. R. M.; RECH, E. L.; ARAGAO, F. J. L.
bitstream/CPAC-2009/24176/1/p2002_67.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Biotecnologia; Glycine Max; Melhoramento Genético Vegetal; Planta Transgênica; Soja.; Biotechnology; Plant breeding; Transgenic plants.; Soybeans.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567487

Avaliação de cultivares e linhagens de arroz, na microrregião Alto Purus-AC.
Provedor de dados: 14
Autores: SOUSA, J. W.; CAMPOS, I. S.
O objetivo deste trabalho é a seleção de material genético que apresente alta capacidade produtiva e características agronômicas desejáveis para as condições ambientais e de cultivo da microrregião do Alto Purus.
Tipo: Folhetos
Palavras-chave: Amazonia Occidental.; Ensayos de variedades; Aclimatación; Factores ambientales; Rendimiento de los cultivos; Fitomejoramiento; Alto Purus (AC); Acre; Amazônia Ocidental; Western Amazon; Arroz; Oryza Sativa; Comportamento de Variedade; Características Agronômicas; Aclimatação; Condição Ambiental; Rendimento; Melhoramento Genético Vegetal; Rice; Variety trials; Agronomic traits; Acclimation; Environmental factors; Crop yield; Plant breeding.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492419

Introducao e avaliacao de linhagens e cultivares de cevada (Hordeum vulgare) irrigada no cerrado.
Provedor de dados: 14
Autores: SERRA, D. D.; AMABILE, R. F.
bitstream/CPAC-2009/24161/1/p2002_49.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Avaliacao; Agronomic characters; Evaluation.; Características Agronômicas; Cerrado; Cerveja; Cevada; Cultura Irrigada; Hordeum Vulgare; Linhagem; Melhoramento Genético Vegetal.; Barley; Beers; Irrigated farming; Plant breeding; Progeny.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567470

Desempenho de cultivares e linhagens de algodoeiro Herbáceo sob pressão de doenças e nematoides: resultados de 2012/13.
Provedor de dados: 14
Autores: CIA, E.; FARIAS, F. J. C.
O crescimento da cotonicultura brasileira em novas regiões, além da adoção de novos sistemas de produção, propiciou o surgimento de novas doenças, juntamente com o agravamento de outras, que levaram os produtores a buscar alternativas para manter o setor competitivo. Isso aumentou a demanda por cultivares com características de resistência a doenças abaixo dos níveis desejáveis, ocasionando um significativo aumento no custo de produção. A escolha de uma cultivar adequada é a base para garantir o máximo benefício pelo emprego dos demais fatores de produção e, consequentemente, para aumentar as chances de sucesso na rentabilidade na cultura do algodoeiro. Os programas de melhoramento genético desta cultura que atuam no Brasil têm disponibilizado ao mercado...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Algodão herbáceo; Melhoramento genético vegetal; Controle genético; Nematoide; Doença de planta; Plant diseases and disorders; Plant breeding; Genetic resistance.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1066737

Milho.
Provedor de dados: 14
Autores: PEREIRA, O. G.
bitstream/item/152118/1/Comunicado6.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Belém; Pará; Brasil; Maize.; Milho; Melhoramento Genético Vegetal; Produtividade; Variedade.; Amazonia; Plant breeding; Varieties; Yields.
Ano: 1964
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383214

Ensaio comparativo avançado de arroz de sequeiro em Altamira, Pará - ano agrícola 1998/1999.
Provedor de dados: 14
Autores: LOPES, A. de M.; LOPES, O. M. N.
bitstream/item/52948/1/PesquisaAnd0160001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Arroz de sequeiro; Maravilha; Progresso; Xingu; Altamira; Pará; Brasil; Upland rice.; Linhagem; Melhoramento Genético Vegetal; Variedade.; Amazonia; Plant breeding; Progeny; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374426

Jatropha: Jatropha cultivar with higher oil productivity.
Provedor de dados: 14
Autores: LAVIOLA, B. G.
Jatropha cultivar with higher oil productivity for insertion in the biofuel energy matrix in Brazil.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Biocombustível; Biofuels; Jatropha; Plant breeding.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132872

Distancia do fluxo genico ocorrido entre a cultivar de soja BR-16 transgenica e BR-16 nao-transgenica no Cerrado do Distrito Federal.
Provedor de dados: 14
Autores: ABUD, S.; SOUZA, P. I. M.; MOREIRA, C. T.; VIANNA, G. R.; ANDRADE, S. R. M.; RECH, E. L.; ARAGAO, F. J.
bitstream/CPAC-2009/24177/1/p2002_68.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Transgenico; Melhoramento genetico; Transgenics.; Biotecnologia; Genética Vegetal; Glycine Max; Soja.; Biotechnology; Genetics; Plant breeding; Soybeans.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567427

BRS A704: características e desempenho agronômico da nova cultivar de arroz irrigado de ciclo médio.
Provedor de dados: 14
Autores: COLOMBARI FILHO, J. M.; LACERDA, M. C.; CORDEIRO, A. C. C.; MAGALHÃES JÚNIOR, A. M. de; FRAGOSO, D. de B.; BRESEGHELLO, F.; ABREU, G. B.; PEREIRA, J. A.; TORGA, P. P.; RANGEL, P. H. N.; FAGUNDES, P. R. R.; NEVES, P. de C. F.; MOURA NETO, F. P.; CASTRO, A. P. de; ANDRES, A.; NUNES, C. D. M.; FURTINI, I. V.; PETRINI, J. A.; BARRIGOSSI, J. A. F.; MARTINS, J. F. da S.; UTUMI, M. M.; FILIPPI, M. C. C. de; BASSINELLO, P. Z.; BORBA, T. C. de O.; SILVA-LOBO, V. L.
A ampliação da base genética é uma das premissas do MelhorArroz, tanto para evitar platôs de ganhos genéticos, quanto para reduzir a vulnerabilidade genética da cultura do arroz a estresses bióticos e abióticos. A BRS A704 foi desenvolvida a partir do cruzamento entre as linhagens CNA 5/3/1-29-B-B-4-B, genitor feminino, e BRA041049, genitor masculino, com objetivo de reunir combinações gênicas favoráveis para resistência genética à brusone, elevado potencial produtivo, tolerância ao acamamento e qualidade de grãos superior, a partir da escolha de genitores de base genética ampla, desenvolvidos de populações de seleção recorrente com múltiplos genitores recombinados via macho esterilidade genética.
Tipo: Folhetos
Palavras-chave: BRS A704; Arroz Irrigado; Oryza Sativa; Melhoramento Genético Vegetal; Características Agronômicas; Rice; Plant breeding; Agronomic traits; New variety.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1138900

Avaliação morfo-agronômica de acessos de Stylosanthes capitata do banco ativo de germoplasma da Embrapa Cerrados.
Provedor de dados: 14
Autores: KARIA, C. T.; ANDRADE, R. P. de; CHARCHAR, M. J. d' Á.; GOMES, A. C.
bitstream/CPAC-2009/26806/1/p2005_14.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Stilosante; Feed legumes.; Germoplasma; Leguminosa Forrageira; Melhoramento Genético Vegetal; Variedade.; Germplasm; Plant breeding; Varieties.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569429

A multivariate approach to explore the genetic variability in the F2 segregating population of a tomato second cycle hybrid
Provedor de dados: 46
Autores: Cabodevila,V.G; Picardi,L.A; Pratta,G.R.
Segregating progeny from the tomato Second Cycle Hybrids (SCH) that were obtained from crossing RIL (Recombinant Inbred Lines) allows the detection of new genetic combinations that could increase genetic variability in F2 populations. The objectives of the present study were to evaluate eleven tomato quality traits in a segregating F2 population obtained from a SCH and, then, to characterize the molecular diversity by six AFLP (Amplified Fragment Length Polymorphism) primer combinations. Different multivariate analyses were used to assess the degree of concordance among these two approaches to detect genetic variability. Sixty-nine F2 plants were obtained by selfing the SCH (ToUNR18xToUNR1). The parental RIL were derived from an interspecific cross between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Plant genetic resources; Fruit quality; AFLP; Multivariate analysis.
Ano: 2017
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332017000100001

Genetic parameters and performance of sugarcane families under cold stress in the South of Brazil
Provedor de dados: 86
Autores: Verissimo,Mario Alvaro Aloisio; Oliveira,Ricardo Augusto de; Silva,Sérgio Delmar dos Anjos e; Daros,Edelclaiton; Härter,Adílson.
Abstract: The objective of this work was to estimate the genetic parameters for the performance prediction of sugarcane (Saccharum spp.) families under natural cold stress, in Southern Brazil, and to identify the best combinations of parents aiming at the selection for tolerance to cold. Fifty-three full-sib families were evaluated in an incomplete block design, with five replicates per family, in the municipality of Pelotas, in the state of Rio Grande do Sul, Brazil. Harvest occurred in August 2013, nine months after planting and after cold spells with negative temperatures down to -2.2ºC. Statistical analyses, performed with the mixed model methodology, detected significant differences among families. Heritability estimates among progeny means were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum; Cold tolerance; Plant breeding; Selection.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500583

New wheat genotypes tolerant to aluminum toxicity obtained by mutation induction
Provedor de dados: 86
Autores: Tulmann Neto,Augusto; Alves,Marcelo Correa; Camargo,Carlos Eduardo de Oliveira; Castro,Jairo Lopes de; Ferreira Filho,Wilson Penteado.
Seed from the sensitive wheat (Triticum aestivumL.) cultivar Anahuac was treated to gamma-ray irradiation and eleven Al3+ tolerant mutants selected. The objective was to compare these mutants to the original Anahuac and to the tolerant wheat cultivars IAC-24 and IAC-60 from 1994 to 1996 in acid (Capão Bonito) and limed (Monte Alegre do Sul) soil field trials, in the State of São Paulo, Brazil. Grain yield and agronomic characteristics were analyzed. All the mutant lines yielded higher than the sensitive Anahuac cultivar in the acid soils of Capão Bonito. Under limed soil conditions, 10 mutants had a similar yield to the original sensitive cultivar and one a lower yield. The majority of the mutants were similar in yield to the tolerant cultivars IAC-24 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acid soil; Liming; Breeding methods; Mutants; Gamma radiation; Agronomic characters; Grain yield; Plant breeding.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000100008

Resistance of cotton genotypes to Sclerotinia sclerotiorum by the straw and oxalic acid tests
Provedor de dados: 86
Autores: Aguiar,Leandro Henrique Mundim; Sousa,Larissa Barbosa de; Coelho,Lísias; Lemes,Ernane Miranda; Castro,Leonardo Humberto Silva e; Cardoso,Daniel Bonifácio Oliveira.
Abstract: The objective of this work was to evaluate the efficiency of the straw and oxalic acid tests to identify resistance levels of white and colored cotton (Gossypium hirsutum) genotypes to white mold (Sclerotinia sclerotiorum). Ten genotypes were evaluated: five with colored fiber, four with white fiber, and a white-fiber susceptible genotype. The genotypes MAB-1 with white fiber and MAC-2 with colored fiber were the most resistant to white mold, according to the immersion in oxalic acid and straw tests, respectively. These genotypes can be recommended as resistance sources for breeding programs. Both assessed tests are complementary to each other; however, the straw test is more efficient in evaluating the resistance of cotton genotypes to white mold.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum; Cotton resistance; Ethanedioic acid; Plant breeding; Plant inoculation; White mold.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001101281

Correlation network analysis between phenotypic and genotypic traits of chili pepper
Provedor de dados: 86
Autores: Silva,Anderson Rodrigo da; Rêgo,Elizanilda Ramalho do; Pessoa,Angela Maria dos Santos; Rêgo,Maílson Monteiro do.
Abstract: The objective of this work was to build weighted correlation networks, in order to discover correlation structures and link patterns among 28 morphoagronomic traits of chili pepper related to seedling, plant, inflorescence, and fruit. Phenotypic and genotypic information of 16 Capsicum genotypes were analyzed. Correlation structures and link patterns can be easily identified in the matrices using the Fruchterman-Reingold algorithm with correlation network information. Both types of correlations showed the same general link pattern among fruit traits, with high broad-sense heritability values and high aptitude of the genotypes for agronomic and ornamental breeding. Leaf dimensions are correlated with a cluster of fruit traits. Correlation networks...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum; Correlation structure; Genetic covariance; Link pattern; Plant breeding.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000400372

Storage protein profile and amino acid content in wild rice Oryza glumaepatula
Provedor de dados: 86
Autores: Santos,Karina Freire D'eça Nogueira; Silveira,Ricardo Diógenes Dias; Martin-Didonet,Claudia Cristina Garcia; Brondani,Claudio.
- The objective of this work was to determine the total protein profile and the contents of the four major protein fractions (albumin, globulin, prolamin and glutelin) and of the amino acids in the endosperm of the rice wild species Oryza glumaepatula. The experiment was performed with 29 accessions of this species, collected from 13 Brazilian locations, and two commercial cultivars. Protein samples were prepared using dried, polished, and ground grains to obtain homogeneous, dry flour used in the preparation of extracts. Oryza glumaepatula accessions were identified with the highest levels of total protein, albumin and glutelin protein fractions, and amino acids (with the exception of tryptophan) in comparison to the two analized rice cultivars. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Genetic resources; Nutritional quality; Plant breeding; SDS-Page.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000100009

Agronomic characterization of high-yielding irrigated barley accessions in the Cerrado
Provedor de dados: 86
Autores: Sayd,Ricardo Meneses; Amabile,Renato Fernando; Faleiro,Fábio Gelape; Montalvão,Ana Paula Leite; Coelho,Mateus Costa.
Abstract: The objective of this work was to estimate the genetic, phenotypic, and environmental parameters of 113 barley accessions (Hordeum vulgare), previously selected based on high yield, in an irrigated production system in the Cerrado (Brazilian savanna), for use in breeding programs in Brazil. The experiment was conducted in 2013 at two sites in the Federal District, using a randomized complete block design with three replicates. The evaluated traits were: grain yield, kernel plumpness, thousand grain weight, plant height, lodging, and days to heading. Significant differences were observed between environment and accessions for all studied traits, as well as genotype x environment interaction. The MCU 3832 PI 402310, MCU 3484 PI 401962, CI 08053...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hordeum vulgare; Elite genotypes; Genetic resources; Malting quality; Plant breeding.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000200084

Grain yield and seed quality of soybean selected for high protein content
Provedor de dados: 86
Autores: Mello Filho,Odilon Lemos de; Sediyama,Carlos Sigueyuki; Moreira,Maurílio Alves; Reis,Múcio Silva; Massoni,Guilherme Augusto; Piovesan,Newton Denis.
The objective of this work was to evaluate the effects of selection for high protein on seed physiological quality and grain yield of soybean. Four populations of BC1F4 and four of F4, each from a cross between a commercial variety and a line bearing high protein seeds, were used. The high protein content selection has a tendency to affect negatively the seed physiological quality. Estimates of correlation coefficients between protein content and grain yield were mostly negative but varied among populations. It is possible to obtain lines with high protein content, keeping the grain yield and the seed physiological quality of their respective recurrent progenitors.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Protein content; Progenitors; Plant breeding.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004000500006

Genetic diversity and structure of native maize races from Northwestern Mexico
Provedor de dados: 86
Autores: Vega-Alvarez,Isrrael; Santacruz-Varela,Amalio; Rocandio-Rodríguez,Mario; Córdova-Téllez,Leobigildo; López-Sánchez,Higinio; Muñoz-Orozco,Abel; Hernández-Bautista,Aurelio.
Abstract: The objective of this work was to evaluate the genetic diversity of nine maize races (Zea mays ssp. mays) from Northwestern Mexico and one population of teosinte of the Balsas race (Zea mays ssp. parviglumis). A total of 649 alleles were identified, with an average of 20.9 alleles per locus using 31 microsatellite loci; 84.3% of them were polymorphic loci with a 0.49 expected heterozygosity. Graphic representation of principal coordinate analysis (PCoA) showed broad variation and population distribution. The highest probabilistic value obtained with the ΔK criterion confirmed the existence of five population groups clustered by the Bayesian model. This grouping coincided with the population distribution observed in the PCoA graph. Maize races...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Conservation strategies; Landraces; Microsatellites; Plant breeding.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001101023

Characterization for plant height and flowering date in the biological species oat
Provedor de dados: 86
Autores: Matiello,Rodrigo Rodrigues; Sereno,Maria Jane Cruz Mello; Barbosa Neto,José Fernandes; Carvalho,Fernando Irajá Félix de; Pacheco,Marcelo Teixeira; Pegoraro,Diego Girardi; Taderka,Ivone.
The use of wild oat races in artificial hybridization with cultivated oat (Avena sativa L.) has been used as a way of increasing the variability. This work aimed to identify the variability for plant height and flowering date of groups of cultivated oat genotypes, wild introductions of A. fatua L. and segregating populations of natural crosses between A. sativa and A. fatua. Wide genetic variability was observed for both traits in the groups and between them. The wild group of A. fatua L. showed high plants with early maturity, but in the segregating group there was reduced plant height and early maturity. The wild introductions of A. fatua L. studied in this work can be used in oat breeding programs to increase genetic variability by transferring specific...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Avena fatua; Segregating populations.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999000800011

Fruit color and post-harvest shelf life in tomato affected by the ogc, nor A, and rin alleles
Provedor de dados: 86
Autores: Poma,Betsabé Antezana; Maluf,Wilson Roberto; Gouveia,Beatriz Tome; Oliveira,Alisson Marcel Souza de; Ferreira,Rodolfo de Paula Duarte; Carvalho,Regis de Castro.
Abstract: The objective of this work was to evaluate the effects of the mutant alleles alcobaça (nor  A ), ripening inhibitor (rin), and old gold crimson (og  c ), in heterozygosity or homozygosity, on the expression of color and on the postharvest quality of fruit of experimental tomato hybrids. Fourteen hybrids with contrasting genotypic constitutions in the nor  A , rin, and og  c loci were evaluated in a randomized complete block design with four replicates. The following fruit postharvest quality traits were evaluated: firmness in the breaker stage, color, and soluble solids content. The rin +/rin and nor +/nor  A genotypes increased firmness of tomato fruit at harvest (breaker stage). The rin  + /rin genotypes displayed the worse internal fruit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Alcobaça; Nonripening; Old gold crimson; Plant breeding; Ripening inhibitor.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900743

New microsatellite markers developed from an enriched microsatellite common bean library
Provedor de dados: 86
Autores: Cardoso,Juliana Morini Kupper; Oblessuc,Paula Rodrigues; Campos,Tatiana de; Sforça,Danilo Augusto; Carbonell,Sérgio Augusto Moraes; Chioratto,Alisson Fernando; Formighieri,Eduardo Fernandes; Souza,Anete Pereira de; Benchimol,Luciana Lasry.
The objective of this work was to develop new microsatellite markers in common bean. Ninety nine new microsatelitte loci were developed from a microsatellite enriched library for (CT)8 and (GT)8 motifs, from CAL-143 line. The majority of microsatellite sequences (51%) was related to cellular metabolism. The remaining sequences were associated to transcription functions. Only 17.2% of the sequences presented some level of similarity with other plant species genes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Molecular markers; Plant breeding; QTL; SSR.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000700019

Extracting female inbred lines from commercial sunflower hybrids
Provedor de dados: 86
Autores: Carvalho,Claudio Guilherme Portela de; Toledo,José Francisco Ferraz de.
The objective of this study was to obtain female inbred lines from sunflower (Helianthus annuus) hybrids. A methodology based on altering inbred lines carrying the fertility restorer gene (Rf) obtained from self pollinating hybrids into inbred lines with normal cytoplasm without the Rf gene was described. Further, derived male-sterile inbred lines were developed. The methodology was successfully used to obtain female inbreds from sunflower commercial hybrids. Although more time and labor consuming than the conventional female inbred line extraction methods, this methodology is advantageous in exploiting superior germplasms (commercial hybrids), which prompted us to develop practical procedures to allow its routinely use.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Helianthus annuus; Cytoplasmic male sterility; Fertility restoration; Plant breeding; Sunflower hybrid production.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000900009

Genetic diversity in soybean germplasm identified by SSR and EST-SSR markers
Provedor de dados: 86
Autores: Mulato,Bruno Mello; Möller,Milene; Zucchi,Maria Imaculada; Quecini,Vera; Pinheiro,José Baldin.
The objectives of this work were to investigate the genetic variation in 79 soybean (Glycine max) accessions from different regions of the world, to cluster the accessions based on their similarity, and to test the correlation between the two types of markers used. Simple sequence repeat markers present in genomic (SSR) and in expressed regions (EST-SSR) were used. Thirty SSR primer-pairs were selected (20 genomic and 10 EST-SSR) based on their distribution on the 20 genetic linkage groups of soybean, on their trinucleotide repetition unit and on their polymorphism information content. All analyzed loci were polymorphic, and 259 alleles were found. The number of alleles per locus varied from 2-21, with an average of 8.63. The accessions exhibit a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Molecular marker; Plant breeding; Plant germplasm; Polymorphism information content.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000300007

Genotype and environment interaction on soybean yield in Mato Grosso State, Brazil
Provedor de dados: 86
Autores: Toledo,José Francisco Ferraz de; Carvalho,Cláudio Guilherme Portela de; Arias,Carlos Alberto Arrabal; Almeida,Leones Alves de; Brogin,Rodrigo Luis; Oliveira,Marcelo Fernandes de; Moreira,José Ubirajara Vieira; Ribeiro,Aliny Simony; Hiromoto,Dario Minoru.
The objective of this work was to investigate the genotype-environment interaction in Mato Grosso State, MT. The relative importance of locations, years, sowing dates and cultivars and their interactions was analyzed from data collected in regional yield trials performed in a randomized complete block design with four replications, from 1994-1995 through 1999-2000, in nine locations and two sowing dates. Individual and pooled analyses of variance over years and locations were performed. Complementary analyses of variances partitioned MT State in two main and five smaller regions, respectively: North and South of Cuiabá; and MT-South-A (Pedra Preta area), MT-South-B (Rondonópolis and Itiquira), MT-East (Primavera do Leste and Campo Verde), MT-Central (Nova...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Plant breeding; Plant genetics; Soybean adaptation.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000500010

Uni- and multivariate methods applied to the study of the adaptability and stability of white oat
Provedor de dados: 86
Autores: Rother,Vianei; Verdi,Cezar Augusto; Thurow,Liamara Bahr; Carvalho,Ivan Ricardo; Oliveira,Victoria Freitas de; Maia,Luciano Carlos da; Venske,Eduardo; Pegoraro,Camila; Oliveira,Antonio Costa de.
Abstract: The objective of this work was to compare uni- and multivariate biometric methods to evaluate the adaptability and stability of an important group of white oat (Avena sativa) cultivars grown in Southern Brazil. The used experimental design was a randomized complete block, in a factorial arrangement of 12 environments x 7 cultivars, with three replicates. The analysis of variance and the methods of Eberhart &amp; Russel, Annicchiarico, and the harmonic mean of the relative performance of predicted genetic values (MHPRVG) were assessed. In the general comparison of the methods, the 'UPFA Gaudéria' and 'URS Guapa' genotypes were more stable regarding grain yield. The 'UPFA Gaudéria' and 'URS-21' genotypes stood out for hectoliter weight, presenting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena sativa; Environment; Genotype; Plant breeding.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102805

Obtaining hybrids of cultivars and wild subspecies of cassava
Provedor de dados: 86
Autores: Silva,Dreid de Cerqueira Silveira da; Martins,Márcio Lacerda Lopes; Santos,Ariana Silva; Santos,Vanderlei da Silva; Alves,Alfredo Augusto Cunha; Ledo,Carlos Alberto da Silva.
Abstract: The objective of this work was to evaluate the crossability between cassava (Manihot esculenta subsp. esculenta) cultivars and the subspecies M. esculenta subsp. flabellifolia and M. esculenta subsp. peruviana. Plants from the BRS Jari, BRS Formosa, BRS Verdinha, and BGM 2050 (Equador 72) cultivars were crossed with the two subspecies. During flowering, at pre-anthesis, pistillate flowers were covered with a nylon bag and staminate flowers on the same inflorescence were emasculated. The staminate flowers were collected and placed in flasks previously labeled and sterilized with alcohol; some fresh flowers were stored at room temperature due to asynchronous flowering. The crosses were made between 10 a.m. and 2 p.m. After pollination, the flowers...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta; Controlled pollination; Hybrid; Plant breeding; Wild relative species.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000200182

Genetic parameters and variability in physic nut accessions during early developmental stages
Provedor de dados: 86
Autores: Laviola,Bruno Galvêas; Rosado,Tatiana Barbosa; Bhering,Leonardo Lopes; Kobayashi,Adilson Kenji; Resende,Marcos Deon Vilela de.
The objective of this work was to estimate the genetic parameters and variability among accessions (half-sib families) of physic nut (Jatropha curcas) during the early stages of development. For this study, 110 accessions in the first year of development of the physic nut germplasm bank, maintained at Embrapa Cerrados, DF, Brazil, were evaluated in situ. The experiment was established in a randomized complete block design, with two replicates and five plants per plot arranged in rows at 4x2 m spacing. Grain yield, total number of branches per plant, plant height, stem diameter, canopy projection on the row, canopy projection between rows, canopy volume, number of days until first flowering and height of the first inflorescence were evaluated. Estimates of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas; Germplasm bank; Plant breeding.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001000010

Phosphorus acquisition and internal utilization efficiency in tropical maize genotypes
Provedor de dados: 86
Autores: Parentoni,Sidney Netto; Souza Júnior,Claudio Lopes de.
The objective of this work was to determine the relative importance of phosphorus acquisition efficiency (PAE - plant P uptake per soil available P), and phosphorus internal utilization efficiency (PUTIL - grain yield per P uptake) in the P use efficiency (PUE - grain yield per soil available P), on 28 tropical maize genotypes evaluated at three low P and two high P environments. PAE was almost two times more important than PUTIL to explain the variability observed in PUE, at low P environments, and three times more important at high P environments. These results indicate that maize breeding programs, to increase PUE in these environments, should use selection index with higher weights for PAE than for PUTIL. The correlation between these two traits showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Mineral nutrition; Phosphorus acquisition; Phosphorus use efficiency; Plant breeding; Quotient of utilization.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000700014

Selection gains for bunch production in interspecific hybrids between “caiaué” and oil palm
Provedor de dados: 86
Autores: Gomes Junior,Rui Alberto; Lopes,Ricardo; Cunha,Raimundo Nonato Vieira da; Pina,Antônio José de Abreu; Quaresma,Carlos Edmundo; Campelo,Raqueline Dias; Resende,Marcos Deon Vilela de.
Abstract: The objective of this work was to estimate selection gains for bunch production in hybrids obtained from “caiaué” (Elaeis oleifera) parents from the Manicoré population and oil palm (Elaeis guineensis) parents from the La Mé population, from the third to the eighth year after planting. Thirty-nine full-sibling progenies were evaluated in experiments conducted in a randomized complete block design, with four replicates and 12 plants per plot. The genetic gain estimates were 27.6% for the ten best selected F1 individuals, 13.7% for the four best selected progenies from parents of both sexes, 6.4% for the selected progenies of the five best male parents, 6.0% for the selected progenies of the two best families from male parents, and 4.0% for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elaeis guineensis; Elaeis oleifera; Bunch production; Plant breeding; REML/BLUP.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102807

Assessment of somaclonal variation in indirect morphogenesis-derived plants of Arracacia xanthorrhiza
Provedor de dados: 86
Autores: Vitamvas,Jan; Viehmannova,Iva; Cepkova,Petra Hlasna; Mrhalova,Hana; Eliasova,Katerina.
Abstract: The objective of this work was to induce and detect somaclonal variation in arracacha (Arracacia xanthorrhiza) plants regenerated via indirect morphogenesis, in order to evaluate the potential of this technique to produce new genotypes for breeding purposes of this crop. Calli were induced from petiole segments on Murashige &amp; Skoog (MS) medium supplied with 0.1 mg L-1 2,4-dichlorophenoxyacetic acid. The regeneration of plants via indirect morphogenesis was carried out on half-strength MS medium without plant growth regulators. Fifteen randomly chosen plants were subjected to flow cytometry and “inter-simple sequence repeat” (ISSR) analysis. Ploidy level remained stable in all tested regenerants (2n=4x=44), with no changes in the genome....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arracacha; ISSR; Plant breeding; Ploidy level; Somatic embryogenesis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102200

Screening of papaya accessions resistant to Papaya lethal yellowing virus and capacity of Tetranychus urticae to transmit the virus
Provedor de dados: 86
Autores: Basso,Marcos Fernando; Pereira,Álvaro Júlio; Pereira,Hermano Monteiro de Barros; Ramos,Humberto Josué de Oliveira; Dantas,Jorge Luiz Loyola; Fontes,Elizabeth Pacheco Batista; Andrade,Eduardo Chumbinho de; Zerbini,Francisco Murilo.
The objective of this work was to produce a polyclonal antiserum against the coat protein (CP) of Papaya lethal yellowing virus (PLYV) and to determine its specificity and sensibility in the diagnosis of the virus, as well as to evaluate the genetic resistance to PLYV in papaya (Carica papaya) accessions and to investigate the capacity of the two-spotted spider mite Tetranychus urticae to acquire and transmit PLYV to the plants. Sixty-five papaya accessions were evaluated. For each accession, ten plants were mechanically inoculated using PLYV-infected plant extracts, and three plants were mock inoculated with phosphate buffer alone and used as negative controls. Ninety days after inoculation, newly-emerging systemic leaves were collected from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carica papaya; Elisa; Genetic resistance; Plant breeding; PLYV; Two-spotted spider mite.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000200097

Repeatability of adaptability and stability parameters of common bean in unpredictable environments
Provedor de dados: 86
Autores: Lima,Lidiane Kely de; Ramalho,Magno Antonio Patto; Ferreira,Ricardo Augusto Diniz Cabral; Abreu,Ângela de Fátima Barbosa.
The objective of this work was to estimate the repeatability of adaptability and stability parameters of common bean between years, within each biennium from 2003 to 2012, in Minas Gerais state, Brazil. Grain yield data from trials of value for cultivation and use common bean were analyzed. Grain yield, ecovalence, regression coefficient, and coefficient of determination were estimated considering location and sowing season per year, within each biennium. Subsequently, a analysis of variance these estimates was carried out, and repeatability was estimated in the biennia. Repeatability estimate for grain yield in most of the biennia was relatively high, but for ecovalence and regression coefficient it was null or of small magnitude, which indicates that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Biometry; Genotype by environment interaction; Plant breeding; Quantitative genetic.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000900009

Adaptability and stability of flood-irrigated rice cultivars released to the subtropical region of Brazil
Provedor de dados: 86
Autores: Streck,Eduardo Anibele; Magalhães Júnior,Ariano Martins de; Fagundes,Paulo Ricardo Reis; Aguiar,Gabriel Almeida; Facchinello,Paulo Henrique Karling; Oliveira,Antônio Costa de.
Abstract: The objective of this work was to estimate the effects of genotype x environment interaction and the genetic potential of flood-irrigated rice cultivars, released between 1972 and 2017, for the state of Rio Grande do Sul, Brazil. The experiments were carried out in the field, in all agroclimatic regions of flood-irrigated rice crop in the state, between the 2005/2006 and 2015/2016 crop years, totaling 60 environments (trials), with 1,961 experimental units. Twenty-five cultivars of irrigated rice were evaluated for the traits grain yield, plant height, days to flowering, and whole grain quality after milling. The values of adaptability and stability were estimated with the aid of mixed models. The rice cultivars BRS Pampa, BRS Pampeira, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Genotype x environment interaction; Mixed models; Plant breeding; Zoning of cultivars.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001001140

Analysis of experiments in square lattice with emphasis on variance components. i. Individual analysis
Provedor de dados: 86
Autores: Silva,Heyder Diniz; Regazzi,Adair José; Cruz,Cosme Damião; Viana,José Marcelo Soriano.
This paper focused on four alternatives of analysis of experiments in square lattice as far as the estimation of variance components and some genetic parameters are concerned: 1) intra-block analysis with adjusted treatment and blocks within unadjusted repetitions; 2) lattice analysis as complete randomized blocks; 3) intrablock analysis with unadjusted treatment and blocks within adjusted repetitions; 4) lattice analysis as complete randomized blocks, by utilizing the adjusted means of treatments, obtained from the analysis with recovery of interblock information, having as mean square of the error the mean effective variance of this same analysis with recovery of inter-block information. For the four alternatives of analysis, the estimators and estimates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimental design; Genetic parameters; Plant breeding.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999001000007

N-partitioning, nitrate reductase and glutamine synthetase activities in two contrasting varieties of maize
Provedor de dados: 86
Autores: Machado,Altair Toledo; Sodek,Ladaslav; Fernandes,Mânlio Silvestre.
In order to identify useful parameters for maize genetic breeding programs aiming at a more efficient use of N, two maize varieties of contrasting N efficiency, Sol da Manhã NF (efficient) and Catetão (inefficient) were compared. Experiments were carried out under field and greenhouse conditions, at low and high N levels. The parameters analysed included total and relative plant and grain N content, biomass and the activities of nitrate reductase and glutamine synthetase in different parts of the plant. It was found that the translocation efficiency of N and photoassimilates to the developing seeds and the source-sink relations were significantly different for the two varieties. N content of the whole plant and grain, cob weight and the relative ear dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutrient transport; Nitrogen; Grain; Source sink relations; Plant breeding.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000200006

Statistical models for evaluating the genotype-environment interaction in maize (Zea mays L.)
Provedor de dados: 85
Autores: Kandus,M; Almorza,D; Boggio Ronceros,R; Salerno,JC.
Our objective was to determine the genotype-environment interaction (GxE) in a hybrid integrated by maize lines either carrying or not balanced lethal systems. Experiments were conducted in three locations over a period of two years considering each year-location combination as a different environment. Yield data were analysed using the Additive Main Effects and Multiplicative Interaction (AMMI) model and the Sites Regression Analysis (SREG). Results were represented by biplots. The AMMI analysis was the best model for determining the interaction.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adaptability; Multivariate analysis; Plant breeding; Stability.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572010000100007

Adoption of Maize Production Technologies in the Coastal Lowlands of Kenya
Provedor de dados: 31
Autores: Wekesa,   E.; Mwangi,   Wilfred; Verkuijl,   Hugo; Danda,   Milton Kengo; De Groote,   Hugo.
Maize is the major food crop grown in the coastal region of Kenya and constitutes a major component of the diet of the population in the region. However, average yields are far below the potential for the region and low production levels create serious food deficits. Over the years, new technologies have been introduced but adoption has remained low, especially for fertilizer. This paper examined current maize-farming practices and technological and socioeconomic factors that influenced adoption in the Kilifi and Kwale Districts of the Coast Province, that together account for half of maize production in the region. The study found low adoption levels for improved maize varieties and technology, especially fertilizer, among farmers in the area. Farmers...
Tipo: Report
Palavras-chave: Maize; Crops; Innovation adoption; Technology transfer; Food production; Production economics; Production factors; Plant breeding; Fertilizers; Yields; Kenya; Crop Production/Industries; E14; E16.
Ano: 2003
URL: http://purl.umn.edu/56109

Access Issues for Plant Breeders in an Increasingly Privatized World
Provedor de dados: 31
Autores: Lindner,   Robert K.
There is a growing trend to widespread privatisation of crop breeding, and there are grounds for expecting this trend to continue and even to accelerate. Possible consequences for Australian grain growers and the national interest of much greater private sector involvement in plant breeding are explored. Growing privatisation and commercialisation of plant breeding will lead to increased competition between plant breeders. While this increased competition has been at least partly driven by the potential for value creation, it also is likely to enhance value creation from plant breeding so long as there is adequate continuing investment in the capacity for plant breeding, and more particularly in productivity enhancing enabling technology. In the event of...
Tipo: Conference Paper or Presentation
Palavras-chave: Privatisation; Plant breeding; Access; Enabling technologies; Competition policy; Excludable public goods.; Crop Production/Industries; Production Economics.
Ano: 2003
URL: http://purl.umn.edu/57909

The Asian Maize Biotechnology Network (AMBIONET): A Model for Strengthening National Agricultural Research Systems
Provedor de dados: 31
Autores: Pray,   Carl E.
This report reviews the impacts of the Asian Maize Biotechnology Network (AMBIONET), organized by the International Maize and Wheat Improvement Center (CIMMYT) with funding from the Asian Development Bank to strengthen the capacity of public maize research institutions in China, India, Indonesia, Philippines, Thailand, and Vietnam to produce high-yielding, disease resistant, stress tolerant maize cultivars. It was found that, during its lifetime (1998-2005), AMBIONET clearly benefited researchers and institutions in participating countries, as well as CIMMYT. In addition, there was good progress toward developing improved cultivars. Asian farmers are just beginning to gain from the work, but their future benefits will likely pay for AMBIONET’s relatively...
Tipo: Report
Palavras-chave: Zea mays; Plant breeding; Biotechnology; Breeding methods; Research methods; Disease resistance; Yield increases; Research institutions; China; India; Indonesia; Philippines; Thailand; Viet Nam; Asia; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; F30; F01.
Ano: 2006
URL: http://purl.umn.edu/56103

THE SEED INDUSTRY IN U.S. AGRICULTURE: AN EXPLORATION OF DATA AND INFORMATION ON CROP SEED MARKETS, REGULATION, INDUSTRY STRUCTURE, AND RESEARCH AND DEVELOPMENT
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
The unprecedented growth in crop yields and agricultural total factor productivity over the past 70 years owes much to a series of biological innovations embodied in seeds, beginning with the development of hybrid crops in the United States in the early part of the 20th century, continuing with the adoption of high-yielding varieties during the Green Revolution of the 1960s and 1970s, and more recently, modern biotechnology. Throughout this period, the seed industry evolved, as small businesses gave way to larger enterprises that integrated plant breeding, production, conditioning, and marketing functions. The industry was further shaped by widespread mergers and acquisitions in the latter part of the century, rapid growth - in private research and...
Tipo: Report
Palavras-chave: Seed markets; Seed costs and prices; Regulation; Plant breeding; Field crops; Research and development; Industry concentration; Biotechnology; Agribusiness; Crop Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/33671

Should Europe Further Strengthen Intellectual Property for Plant  Breeders? An Analysis of Seed Industry Proposals
Provedor de dados: 31
Autores: Eaton,   Derek J.F.; van Tongeren,   Frank W.
This paper illustrates the potential negative effects of increasing the scope of plant breeders' rights (PBR) protection, as has been proposed for Europe by leading plant breeding firms. Such a policy could increase the costs for varietal development for breeding companies, particularly if their access to varieties of the market leader is constrained. This is represented as an  asymmetrical increase in breeders' cost functions in a simple model of endogenous quality choice under price competition. Increased scope of IPR protection leads to increased profits for the leading breeding company but decreases in varietal quality and both farm and overall profits.
Tipo: Conference Paper or Presentation
Palavras-chave: Intellectual property rights; Product differentiation; Plant breeding; Genetic diversity; Research and Development/Tech Change/Emerging Technologies; L13; O34; Q16.
Ano: 2005
URL: http://purl.umn.edu/24725

THE DEMAND FOR CROP GENETIC RESOURCES: INTERNATIONAL USE OF THE U.S. NATIONAL PLANT GERMPLASM SYSTEM
Provedor de dados: 31
Autores: Smale,   Melinda; Day-Rubenstein,   Kelly A.; Zohrabian,   Armineh; Hodgkin,   T.
In contrast to a perception that ex situ collections of germplasm are rarely used, this empirical case study reveals large quantities of germplasm samples distributed by the U.S. National Germplasm System to many types of scientific institutions located in numerous countries around the world. Distributions favor developing countries in several ways including the numbers of samples shipped, utilization rates in crop breeding programs, and the secondary benefits brought about through sharing this germplasm with other scientists. Expected future demand is also greater among scientists in developing countries. These findings underscore the importance to global science and technology of retaining such resources in the public domain.
Tipo: Working or Discussion Paper
Palavras-chave: Developing countries; Crop genetic resources; Plant breeding; Germplasm collection; Crop Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/16086

Crop Improvement in the CGIAR as a Global Success Story of Open Access and International Collaboration
Provedor de dados: 31
Autores: Byerlee,   Derek R.; Dubin,   H. Jesse.
Paper presented at the International Conference on the Microbial Commons, Ghent, Belgium, June 12-13th, 2009
Tipo: Conference Paper or Presentation
Palavras-chave: Open access; Plant breeding; Genetic resources; International treaties; International public goods; Wheat; International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 2009
URL: http://purl.umn.edu/55482

Trade and Intellectual Property Rights in the Agricultural Seed Sector
Provedor de dados: 31
Autores: Eaton,   Derek J.F.
The Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS) has continued to be fiercely debated between North and South, particularly with respect to its provisions for the agricultural sector. Article 27.3(b) of the TRIPS Agreement requires WTO member countries to offer some form of intellectual property protection for new plant varieties, either in the form of patents (common in the U.S.) or plant breeder’s rights (PBR). This paper analyses the effects of the introduction of PBRs in almost 70 importing countries on the value of exports of agricultural seeds and planting material from 10 exporting EU countries, including all principal traditional exporters of seeds, as well as the US. A fixed effects quantile regression model, based on...
Tipo: Conference Paper or Presentation
Palavras-chave: Intellectual property rights; Trade; Agriculture; Plant breeding; Quantile regression; Agricultural and Food Policy; Industrial Organization; International Relations/Trade; Q16; Q17; F13; F14.
Ano: 2009
URL: http://purl.umn.edu/51782

IDENTIFYING APPROPRIATE GERMPLASM FOR PARTICIPATORY BREEDING: AN EXAMPLE FROM THE CENTRAL VALLEYS OF OAXACA, MEXICO
Provedor de dados: 31
Autores: Bellon,   Mauricio R.; Smale,   Melinda; Aguirre,   Alfonso; Taba,   Suketoshi; Aragon,   Flavio; Diaz,   Jaime; Castro,   Humberto.
Identifying the appropriate germplasm to be improved is a key component of any participatory breeding effort because of its implications for impacts on social welfare and genetic diversity. This paper describes a method developed to select a subset of 17 populations for a participatory breeding project from a set of 152 maize landraces. The larger set of landraces was collected in order to characterize, for conservation purposes, the maize diversity present in the Central Valleys of Oaxaca, Mexico. The method combines data representing the perspectives of both men and women members of farm households and those of genetic resources specialists, including professional plant breeders, gene bank managers, and social scientists. The different perspectives...
Tipo: Working or Discussion Paper
Palavras-chave: Mexico; Oaxaca; Maize; Zea mays; Land race; Germplasm conservation; Plant breeding; Selecting; Innovation adoption; Social welfare; Welfare economics; On farm research; Participatory research; Farm Management.
Ano: 2000
URL: http://purl.umn.edu/46524

PUBLIC SECTOR PLANT BREEDING IN A PRIVATIZING WORLD
Provedor de dados: 31
Autores: Thirtle,   Colin G.; Srinivasan,   Chittur S.; Heisey,   Paul W.
Intellectual property protection, globalization, and pressure on public budgets in many industrialized countries have shifted the balance of plant breeding activity from the public to the private sector. Several economic factors influence the relative shares of public versus private sector plant breeding activity, with varying results over time, over country, and over crop. The private sector, for example, dominates corn breeding throughout the industrialized world, but public and private activities in wheat breeding differ widely in Western Europe, different regions of the United States, Canada, and Australia. Public sector involvement in plant breeding may have benefits to society that the private sector's activities may not, fostering greater sharing of...
Tipo: Report
Palavras-chave: Plant breeding; Economics; Public sector; Private sector; Research policy; Biotechnology; Intellectual property; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2001
URL: http://purl.umn.edu/33775

Breeding Quality Protein Maize (QPM): Protocols for Developing QPM Cultivars
Provedor de dados: 31
Autores: Vivek,   B.S.; Krivanek,   A.F.; Palacios-Rojas,   N.; Twumasi-Afriyie,   S.; Diallo,   Alpha O.
This manual is intended for maize breeders who would like to start developing quality protein maize (QPM) cultivars. It is a compilation and consolidation of several breeding protocols successfully used at CIMMYT over two decades of QPM development and breeding. A brief background and the basic theory of QPM genetics are explained, leading up to detailed methods and procedures of QPM development.
Tipo: Report
Palavras-chave: Zea mays; Plant breeding; Breeding methods; Genetic resources; Protein quality; Protein content; Application methods; Lysine; Tryptophan; Food composition; Crop Production/Industries; F30; Q04.
Ano: 2008
URL: http://purl.umn.edu/56179

Plant Genetic Resources for Agriculture, Plant Breeding, and Biotechnology: Experiences from Cameroon, Kenya, the Philippines, and Venezuela
Provedor de dados: 31
Autores: Falck-Zepeda,   Jose Benjamin; Zambrano,   Patricia; Cohen,   Joel I.; Borges,   Orangel; Guimaraes,   Elcio P.; Hautea,   Desiree; Kengue,   Joseph; Songa,   Josephine.
Local farming communities throughout the world face binding productivity constraints, diverse nutritional needs, environmental concerns, and significant economic and financial pressures. Developing countries address these challenges in different ways, including public and private sector investments in plant breeding and other modern tools for genetic crop improvement. In order to measure the impact of any technology and prioritize investments, we must assess the relevant resources, human capacity, clusters, networks and linkages, as well as the institutions performing technological research and development, and the rate of farmer adoption. However, such measures have not been recently assessed, in part due to the lack of complete standardized information...
Tipo: Working or Discussion Paper
Palavras-chave: Plant breeding; Biotechnology; Public research; Funding; Innovation systems; Capacity building; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/42329

Pigeonpea improvement
Provedor de dados: 31
Autores: Ryan,   James G.
This study was commissioned by the Australian Centre for International Agricultural Research (ACIAR) to evaluate the economic impact of two projects (8201 and 8567) for which ACIAR provided support from 1982–89. These projects were aimed at the improvement of the grain yield potential of pigeonpea (Cajanus cajan) using modern plant breeding, along with associated physiological, agronomic, processing and socioeconomic research. The commissioned organisation in Australia was the University of Queensland. The partners were: Fiji (Ministry of Primary Industries, Native Land Development Corporation); Indonesia (Central Research Institute for Food Crops, Agency for Agricultural Research and Development); India (Indian Council for Agricultural Research,...
Tipo: Book
Palavras-chave: Pigeonpea; ACIAR; Economic impact; Yield; Plant breeding; Fiji; Indonesia; India; Thailand; Australia; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Development; Production Economics.
Ano: 1998
URL: http://purl.umn.edu/47498

Strategies for Strengthening and Scaling up Community-based Seed Production
Provedor de dados: 31
Tipo: Report
Palavras-chave: Maize; Agricultural economics; Seed production; Plant breeding; Pollination; Hybrids; Planting date; Models; Small farms; Training programmes; International cooperation; South Africa; Crop Production/Industries; E16; F03.
Ano: 2006
URL: http://purl.umn.edu/56181

Potential Impacts of Iron Biofortification in India
Provedor de dados: 31
Autores: Stein,   Alexander J.; Qaim,   Matin; Meenakshi,   J.V.; Nestel,   Penelope; Sachdev,   H.P.S.; Bhutta,   Zulfiqar A.
Iron deficiency is a widespread nutritional problem in developing countries, causing impaired physical activity and cognitive development, as well as maternal mortality. Although food fortification and supplementation programmes have been effective in some countries, their overall success remains limited. Biofortification, that is, breeding crops for higher micronutrient content, is a relatively new approach. We propose a methodology for ex-ante impact assessment of iron biofortification, which builds on disability-adjusted life years (DALYs) and a large household data set. Our analysis of iron-rich rice and wheat in India indicates sizeable potential health benefits. The cost-effectiveness of iron biofortification compares favourably with other...
Tipo: Working or Discussion Paper
Palavras-chave: Biofortification; Plant breeding; Iron deficiency anaemia; Health benefits; DALYs; Cost-effectiveness; Cost-benefit analysis; India; Research and Development/Tech Change/Emerging Technologies; I120; I180; I310; O150; O220; O330; Q180.
Ano: 2006
URL: http://purl.umn.edu/8536

EVALUATION OF LITCHI VARIETIES SEEKING SOURCES RESISTANT TO Aceria litchi MITE
Provedor de dados: 94
Autores: ARANTES,RENAN FIACADORI; ANDRADE,DANIEL JUNIOR DE; AMARAL,INGRID; MARTINS,ANTONIO BALDO GERALDO.
ABSTRACT  Since the first report of Aceria litchi in Brazil, litchi productivity is reducing in the main productive regions. The aims of this study were to evaluate litchi varieties in relation to feeding by A. litchi mite and to determine the moisture and reducing sugars contents, seeking sources resistant to this mite. The experiment was conducted in the Fruit Growing Active Germoplasm Bank, Laboratory of Acarology and Laboratory of Soil Biochemistry at FCAV/UNESP. The plant varieties evaluated were Americana, Bengal, Groff, Mauritius and Sweet Clift varieties. Descriptions were performed regarding symptoms caused by A. litchii, moisture and reducing sugars contents present in the leaves of plantvarieties. There were differences among varieties with...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Erinose mite; Eriophyidae; Reducing sugars; Plant breeding.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000700801

ASSOCIATIONS BETWEEN TRAITS IN FISÁLIS: A TOOL FOR INDIRECT SELECTION OF SUPERIOR PLANTS
Provedor de dados: 94
Autores: TREVISANI,NICOLE; MELO,RITA CAROLINA DE; COLLI,MAURO PORTO; COIMBRA,JEFFERSON LUÍS MEIRELLES; GUIDOLIN,ALTAMIR FREDERICO.
ABSTRACT  Knowledge about associations between traits is fundamental for plant breeding, since indirect selection can accelerate the development of promising genotypes. This study assessed the magnitude of associations between agronomically important traits in fisális (Physalis peruviana L). The experiment was conducted in Lages, Santa Catarina, and the treatments consisted of six fisális populations. The experiment was arranged in a randomized block design, with two replications and seven plants per plot. The correlations between traits were estimated based on the Pearson correlation coefficients and partitioned into direct and indirect effects through path analysis. Fruit weight was positively correlated with number of seeds (0.874), equatorial fruit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenotypic correlation; Path analysis; Plant breeding; Physalis peruviana L.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000400801

Evaluation of SSR and SNP markers in Rubus glaucus Benth progenitors selection
Provedor de dados: 94
Autores: López,Ana María; Barrera,Carlos Felipe; Marulanda,Marta Leonor.
Abstract Rubus glaucus Benth (known as “mora de castilla”) is a Colombian agricultural product, with probably, the major potential. This fruit combines features of Idaeobatus and Rubus subgenera. Despite its recognized importance in the economy of small producers, this crop has received little technological development; as a result, sowing procedures of this specie is done by using local cultivars asexually propagated by producers. Associated Rubus producers in Colombia has noticed the necessity to formalize the offer of planting material, starting with plant breeding programs tending to the obtention of more productive varieties with morphological features that facilitates cultural activities. This study presents the results of the evaluation of SSR and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Andean blackberry; Genetic diversity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100803

PERFORMANCE OF GENERATIONS OF UENF/CALIMAN 01 PAPAYA AND CORRELATIONS BETWEEN GERMINATION, VEGETATIVE AND REPRODUCTIVE DEVELOPMENT
Provedor de dados: 94
Autores: MENGARDA,LIANA HILDA GOLIN; LOPES,JOSÉ CARLOS; ALEXANDRE,RODRIGO SOBREIRA; FERREIRA,ADÉSIO; BRAGA,ALICE DE FREITAS.
ABSTRACT  The aim of this study was to characterize the seeds quality and the plant development of F1 and F2 generations of hybrid UENF/Caliman 01 papaya, and the relations between the physic-chemical and physiological quality of seeds, vegetative and reproductive development of plants in the field for 360 days, and fruit quality. The relative contribution (Cr %) to the genetic divergence for each characteristic was estimated. For those with higher importance for each group (Cr = 25%), the Pearson correlation and the canonical correlation analysis were applied. The F1 seeds showed higher physic-chemical and physiological quality, with greater length (0.55 cm), sugar and lipid levels (5.13 and 11.58 mg g-1, respectively), germination and normal seedlings...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biometrics; Carica papaya; Plant breeding; Seed physiological quality.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000200701

Associations among production and physicochemicalquality fruit traits in Passion fruit populations subjected to three cycles of intrapopulation recurrent selection
Provedor de dados: 94
Autores: Cavalcante,Natan Ramos; Viana,Alexandre Pio; Santos,Paulo Ricardo dos; Preisigke,Sandra da Costa; Ribeiro,Rodrigo Moreira; Tofanelli,Evillyn Jacinto.
Abstract  The present study was developed to identify the direct and indirect effects of fruit production traits in passion fruit on traits of agronomic interest as well as determine possible changes in associations between the characters after three cycles of recurrent selection. Twenty three half-sibling progenies were evaluated for the characteristics number of fruits per plant; fruit mass per plant (g); pulp percentage (%); fruit length and diameter (mm); peel thickness (mm); total soluble solids content (ºBrix); pH; and yield per plant (kg). Fruit production per plant was considered the main variable, while the others were considered explanatory variables. Within-family heritability (h2ad) values were lower than the mean heritability of the progeny...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora edulis; Plant breeding; Production; Correlations; REML/BLUP.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000500101

Morphological characterization and productivity estimates of Acrocomia totai Mart. (Arecaceae) – a sustainable alternative of extractivism and cultivation
Provedor de dados: 94
Autores: Vianna,Suelen Alves; Domenech,Helen Liepkan Maranhão; Silva,Rosa Helena da; Colombo,Carlos Augusto; Pott,Arnildo.
Abstract  The Acrocomia totai palm can be found in areas of Cerrado and Pantanal in Brazil, Argentina, Bolivia and Paraguay. Its fruits are used by traditional and rural communities for subsistence or income source. Given the relevance of this genetic resource, we assessed the morphological and agronomic characters and estimated the population density in two physiognomies of the Pantanal. We found variation in all analyzed characters, such as the density of spines on the stipe, coloration of leaves, epicarp and mesocarp. The average number of fruits per bunch was 392.30±134.53, fresh mass (g) of the whole fruit of 15.50±3.87 and, the mesocarp oil content (%) of 14.94±8.06. The population density varied between 48 pls.ha-1 in area of shrubby grassland to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Native fruit; Palm tree; Plant breeding; Pantanal.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452021000100201

Physical purity and germination of sugarcane seeds (caryopses) (Saccharum spp.)
Provedor de dados: 95
Autores: Caieiro,Juliana Terezinha; Panobianco,Maristela; Bespalhok Filho,João Carlos; Ohlson,Osvaldo de Castro.
Plant breeding is generally done through sexual reproduction even when the species is propagated asexually for commercial exploitation, as for example, in sugarcane. Therefore, the development of procedures to evaluate sugarcane seed viability is important for plant breeding programs. The objective of this research was to develop a methodology for analyzing the viability of sugarcane seeds (Saccharum spp.). Three crosses were used, two biparental crosses and one polycross. For the germination test study, two substrates (paper and sand) and three constant incubation temperatures (25 ºC, 30 ºC and 35 ºC), in the presence of constant light and also an alternating temperatures (20-30 ºC), with 8 hours light (30 ºC) and 16 hours darkness (20 ºC), were studied....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Substrate; Temperature; Plant breeding.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222010000200017

Evaluation of lignin content of soybean seed coat stored in a controlled environment
Provedor de dados: 95
Autores: Krzyzanowski,Francisco Carlos; Franca Neto,José de Barros; Mandarino,Jose Marcos Gontijo; Kaster,Milton.
Breeding soybean for high seed quality is an important approach for developing cultivars for tropical regions, and the lignin content in the seed coat is one of the screening parameters for this trait. Considering that many breeding lines are evaluated in each growing season using the presently recommended method for lignin determination, a long period is required for the evaluation of the whole breeding program. This time limitation may influence lignin content assessment, if lignin is degraded during storage. This research reported was designed to determine whether lignin was degraded in the seed coat of soybean seed cultivars stored for one year in a controlled environment (10°C temperature and 50% air relative humidity). Seeds of 12 selected soybean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Plant breeding; Seed quality; Seed storage.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222008000200028

Determination of the mode of reproduction of bahiagrass hybrids using cytoembryological analysis and molecular markers
Provedor de dados: 96
Autores: Weiler,Roberto Luis; Dall’Agnol,Miguel; Simioni,Carine; Krycki,Karine Cristina; Dahmer,Nair; Guerra,Divanilde.
ABSTRACT The aim of this study was to determine the mode of reproduction of a hybrid progeny derived from intraspecific crosses of Paspalum notatum through cytoembryological analysis and use of RAPD (random amplification of polymorphic DNA) molecular markers. Cytoembryological analysis allowed identification of the mode of reproduction of 28 plants that were selected after agronomic productivity evaluations. Of these, 19 had embryo sac morphology compatible with an apomictic mode of reproduction and nine had embryo sac morphology compatible with a sexual mode of reproduction. Meanwhile, molecular marker analysis for 194 individuals showed 54 sexual and 140 apomictic plants; of the 28 plants analyzed by the two methods, ten results (35.7%) were in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Molecular analysis; Paspalum notatum; Plant breeding; RAPD.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000300185

Among and within family selection and combined half-sib family selection in Panicum maximum Jacq.
Provedor de dados: 96
Autores: Martuscello,Janaina Azevedo; Jank,Liana; Fonseca,Dilermando Miranda da; Cruz,Cosme Damião; Cunha,Daniel de Noronha Figueiredo Vieira da.
The objective of this study was to select superior genotypes in half-sib populations obtained from crosses between sexual plants and apomictic accessions. The experiment also proposed to compare among and within family and combined selection strategies. Ten plots of sexual plants were randomly distributed among 230 plots of apomictic accessions. After natural pollination, seeds of each sexual plant constituted a half-sib family. Thirty plants of each female progenitor were evaluated in a randomized block design experiment, with five plants per plot and five replications. Five evaluation harvests were made in the rainy seasons and two in the dry seasons of all plants. The production and quality characteristics were evaluated. The selection criteria used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forage yield; Nutritive value; Plant breeding; Selection strategies.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001000003

Early indirect selection for nitrogen use efficiency in maize1
Provedor de dados: 124
Autores: Caixeta,Débora Santos; Fritsche-Neto,Roberto; Granato,Ítalo Stefanine Correia; Oliveira,Lucimar Rodrigues de; Galvão,João Carlos Cardoso.
Several studies to evaluate nitrogen use efficiency (NUE) have been carried out using early growth stages. However, there are no scientific reports on the ideal stage for evaluation and on which characteristics have the highest correlation with the NUE at that stage. The aim therefore was to identify the phenological stages and secondary characteristics which maximize accuracy in early indirect selection for NUE in maize. To do this, three endogamic maize strains were evaluated in a completely randomised design with five replications, in a triple factorial scheme (strains x N levels x phenological stage), at two contrasting nitrogen levels: low and high nitrogen. The plants were evaluated at five growth stages: stage nine (V9), with 14 fully-developed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Path analysis; Abiotic stress; Plant breeding.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000200369

Identifying lines of the black-eyed cowpea having high productivity and quality commercial grain
Provedor de dados: 124
Autores: Delmondes,Bruna de Lima; Menezes Júnior,José Ângelo Nogueira de; Silva,Kaesel Jackson Damasceno; Rocha,Maurisrael de Moura; Neves,Adão Cabral das; Pereira,Cassiano Spaziani.
ABSTRACT The black-eyed cowpea, is consumed in Brazil and valued in various other countries, and for this reason, can be found on the domestic market, showing the potential for export. The aim of this study was to identify lines of the black-eyed cowpea having high productivity and quality commercial grain. Twenty-four lines of black-eyed commercial subclass of cowpea, taken from the breeding program of Embrapa Meio-Norte, and two controls (BRS Itaim and CB-27) were evaluated. The experiments were carried out in Nova Ubiratã, in the State of Mato Grosso, Brazil (MT) during 2014, and in Primavera do Leste MT and Sinop MT during 2015, in the off-season; planting was in February/March and harvesting in May/June. The experimental design was of randomised...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Vigna unguiculata; Grain quality; CIE L* a* b*.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500848

Diallel analysis of yield, popping expansion, and southern rust resistance in popcorn lines
Provedor de dados: 124
Autores: Vieira,Rafael Augusto; Scapim,Carlos Alberto; Tessmann,Dauri José; Hata,Fernando Teruhiko.
Ten popcorn inbred lines were crossed in a circulant partial diallel matching scheme (group of lines derived from IAC 112 × group of lines from 'Zaeli'). The hybrids were evaluated in respect to grain yield (GY), popping expansion (PE), and resistance to southern rust (Puccinia polysora, Pp), in randomized block design, with three replications. Data was examined by analyses of variance and Kempthorne and Curnow's diallel analysis. General combining ability (GCA) was significant (p &lt; 0.10) in the set 2-Zaeli for GY, PE, and partial resistance to Pp. This indicated that additive gene effects are predominant, and therefore breeding methods of recurrent selection are recommended. However, none of lines had outstanding GCA for GY and PE. The line P8.5 was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; General and specific combining ability; Puccinia polysora; Plant breeding.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000300025

Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
Provedor de dados: 124
Autores: Nogueira,Danilo Gustavo; Carvalho,Regis de Castro; Maluf,Wilson Roberto; Nogueira,Douglas Willian; Ticona-Benavente,César Augusto.
ABSTRACT  The aim of this study was to develop bell pepper hybrids with resistance to multiple pathogens and make inferences in regard to components of heterosis in hybrids obtained from lines presumed to be resistant to Pepper yellow mosaic virus (PepYMV), Phytophthora capsici, or Meloidogyne incognita. The studies were carried out in a greenhouse. We used ten lines, thirty experimental hybrids, and seven controls (Konan-R, Magali-R, Martha-R, Stephany, Mallorca, Magnata Super, and Criollo de Morelos-334). For all experiments, a randomized block design was used with three replications (with plots composed of 16 plants). For evaluation of the reactions to P. capsici and to PepYMV, the percentages of asymptomatic plants were considered. For evaluation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Disease resistance; Plant breeding.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000100093

Genomic prediction of leaf rust resistance to Arabica coffee using machine learning algorithms
Provedor de dados: 63
Autores: Sousa,Ithalo Coelho de; Nascimento,Moysés; Silva,Gabi Nunes; Nascimento,Ana Carolina Campana; Cruz,Cosme Damião; Silva,Fabyano Fonseca e; Almeida,Dênia Pires de; Pestana,Kátia Nogueira; Azevedo,Camila Ferreira; Zambolim,Laércio; Caixeta,Eveline Teixeira.
ABSTRACT Genomic selection (GS) emphasizes the simultaneous prediction of the genetic effects of thousands of scattered markers over the genome. Several statistical methodologies have been used in GS for the prediction of genetic merit. In general, such methodologies require certain assumptions about the data, such as the normality of the distribution of phenotypic values. To circumvent the non-normality of phenotypic values, the literature suggests the use of Bayesian Generalized Linear Regression (GBLASSO). Another alternative is the models based on machine learning, represented by methodologies such as Artificial Neural Networks (ANN), Decision Trees (DT) and related possible refinements such as Bagging, Random Forest and Boosting. This study aimed to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemileia vastatrix; Statistical learning; Plant breeding; Artificial intelligence.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000401102

Genetic similarity among strawberry cultivars assessed by RAPD and ISSR markers
Provedor de dados: 63
Autores: Morales,Rafael Gustavo Ferreira; Resende,Juliano Tadeu Vilela; Faria,Marcos Ventura; Andrade,Marcela Carvalho; Resende,Luciane Vilela; Delatorre,Carla Andrea; Silva,Paulo Roberto da.
Most strawberry (Fragaria × ananassa Duchesne) cultivars used in Brazil are developed in other countries, it became clear the need to start the strawberry breeding program in the country. To start a breeding program is necessary the genetic characterization of the germplasm available. Molecular markers are important tools that can be used for this purpose. The objectives of the present study were to assess the genetic similarity among 11 strawberry cultivars using RAPD and ISSR molecular markers and to indicate the possible promising crosses. The DNA of the eleven strawberry cultivars was extracted and amplified by PCR with RAPD and ISSR primers. The DNA fragments were separated in agarose gel for the RAPD markers and in polyacrylamide gel for the ISSR...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria× ananassa; Plant breeding; Genetic divergence; Molecular markers.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600010

Morphological variation in Paspalum nicorae Parodi accessions, a promising forage
Provedor de dados: 63
Autores: Reis,Camila Aparecida de Oliveira dos; Dall'Agnol,Miguel; Nabinger,Carlos; Schifino-Wittmann,Maria Teresa.
Paspalum nicorae Parodi is a perennial, apomictic tetraploid forage species, native in the state of Rio Grande do Sul, Brazil, with grazing tolerance and adapted to sandy soils and moderate droughts. As a first step to future breeding, a morphological characterization regarding leaf hairiness, sheath, leaf and central venation color, growing habit, plant height, raceme number and length, and leaf length and width was performed in 53 accessions from Rio Grande do Sul that are part of a Paspalum species breeding program. 35.84% of the accessions had completely hairy leaves, 73.58% had green sheath, 54.71% whitish central venation, 50.94% decumbent habit. Leaf color was estimated by two methods, color chart and colorimeter. The accessions were classified as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Forage grass; Morphology; Plant breeding.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200003

Forage yield and persistence of red clover progenies in two environments
Provedor de dados: 63
Autores: Montardo,Daniel Portella; Dall'Agnol,Miguel; Paim,Nilton Rodrigues.
Red clover (Trifolium pratense L.) is one of the most important temperate legume species, used to lessen the lack of forage during the critical fall-winter period in Rio Grande do Sul, RS, Brazil. However, its utilization has been restricted mainly because of its lack of persistence. This work evaluates the dry matter yield and persistence of red clover half-sib progenies in two physiographic regions of RS: "Depressão Central", in Eldorado do Sul and "Encosta Superior do Nordeste", in Veranópolis. Experiments were carried out for two growing seasons and results were compared to two red clover commercial checks, Qüiñequeli and Estanzuela 116. The region of Veranópolis was more adequate for red clover forage production, enabling better yield and persistence....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environment; Genotype; Plant breeding.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300005

Detection of differentially methylated regions of irradiated fig tree selections
Provedor de dados: 63
Autores: Rodrigues,Maria Gabriela Fontanetti; Soares,Murilo Racy; Gimenez,Daniele Fernanda Jovino; Fonseca,Larissa Fernanda Simielli; Torrieri,Erico; Ramos,Ester Silveira; Giuliatti,Silvana.
ABSTRACT Fig tree (Ficus carica L.) breeding programs using conventional methods, such as directed crosses, to obtain new cultivars, are unworkable in many countries, including Brazil. Consequently, genetic breeding through mutagenesis has emerged as an important line of research that can improve this crop, and be a significant source of information about this species and assist in the implementation of propagation projects and appropriate management. The aim of this study was to verify the existence of epigenetic variability attributable to DNA methylation in irradiated fig selections when compared both to each other and to the main commercial cultivar, “Roxo-de-Valinhos”, which had previously used methylation-sensitive amplified polymorphism (MSAP) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ficus carica; DMRs; Methylation; Plant breeding; Epigenetics.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000400285

Cytogenetic data for Paspalum notatum Flügge accessions
Provedor de dados: 63
Autores: Dahmer,Nair; Schifino-Wittmann,Maria Teresa; Dall'Agnol,Miguel; Castro,Biane de.
Several species of the genus Paspalum L. are important forages, due their to quality, productivity and tolerance to environmental stresses. Chromosome numbers, meiotic configurations and pollen fertility were evaluated in a collection of 85 accessions of Paspalum notatum Flügge and in seven accessions of Pensacola (P. notatum var saurae). All P. notatum accessions were tetraploid, with 2n = 4x = 40, except one diploid accession, considered as an escape of Pensacola. All Pensacola plants had 2n = 2x = 20. Meiotic configurations at diakinesis and metaphase I varied among tetraploid accessions, from plants with only bivalents to plants with high frequency of quadrivalents. Pollen fertility varied from 82.5 to 95.9% among diploid accessions and from 72.4 to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Chromosome numbers; Meiotic configurations; Plant breeding; Pollen fertility.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400009

Sexual polyploidization in red clover
Provedor de dados: 63
Autores: Simioni,Carine; Schifino-Wittmann,Maria Teresa; Dall'Agnol,Miguel.
Because sexual polyploidization broadens genetic basis and supply plant breeders with more variability for the selection process, it can be useful in red clover breeding. This paper reports results of three crossing cycles, starting from a parental generation of tetraploid red clover plants (female parent), and diploids from the Quiñiqueli cultivar, selected for production of more than 1% of giant pollen grains (male parent) aiming to obtain tetraploid plants to be used in red clover breeding programs. Crosses in the next generations were performed by mutual cross-pollinations. Chromosome number chimerism and high pollen sterility were detected in F1, F2 and F3, but there was a trend towards increasing seed production and seed viability along the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trifolium pratense; Plant breeding; Triploid bridge; Unreduced gametes.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100005

Artificial neural network for prediction of the area under the disease progress curve of tomato late blight
Provedor de dados: 63
Autores: Alves,Daniel Pedrosa; Tomaz,Rafael Simões; Laurindo,Bruno Soares; Laurindo,Renata Dias Freitas; Silva,Fabyano Fonseca e; Cruz,Cosme Damião; Nick,Carlos; Silva,Derly José Henriques da.
ABSTRACT: Artificial neural networks (ANN) are computational models inspired by the neural systems of living beings capable of learning from examples and using them to solve problems such as non-linear prediction, and pattern recognition, in addition to several other applications. In this study, ANN were used to predict the value of the area under the disease progress curve (AUDPC) for the tomato late blight pathosystem. The AUDPC is widely used by epidemiologic studies of polycyclic diseases, especially those regarding quantitative resistance of genotypes. However, a series of six evaluations over time is necessary to obtain the final area value for this pathosystem. This study aimed to investigate the utilization of ANN to construct an AUDPC in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytophthora infestans; ANN; AUDPC; Artificial intelligence; Plant breeding.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000100051

Genetic control of viviparity in common bean
Provedor de dados: 63
Autores: Pereira,Laís Andrade; Ramalho,Magno Antonio Patto; Abreu,Ângela de Fátima Barbosa; Guilherme,Scheila Roberta.
ABSTRACT: In common bean (Phaseolus vulgaris) harvesting is carried out in the field. It is therefore necessary that cultivars be tolerant to viviparity, i.e., germination of grains still in the pods. Study of the percentage of germination of beans in the pods under laboratory conditions, where humidity content is high, has been proposed. Furthermore, under question is whether the thickness of the pod wall affects water uptake by the pods and, consequently, viviparity. Thus, the aim of the present study was to verify if there is variance among progenies for viviparity and if it is influenced by pod thickness. We assessed the parents, Pérola and ESAL 686, the F1, and a number of segregating generations in two crop seasons, in relation to the percentage of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Plant breeding; Pre-harvest sprouting; Genetic components; Heritability.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300208

Vigor and mortality of citrus progenies with potential use as rootstocks
Provedor de dados: 63
Autores: Santana,Lizziane Gomes Leal; Souza,Edson dos Santos; Passos,Orlando Sampaio; Gesteira,Abelmon da Silva; Ledo,Carlos Alberto da Silva; Soares Filho,Walter dos Santos.
ABSTRACT: Rootstocks influence certain characteristics of the scion, such as vigor, fruit yield and quality, and tolerance to biotic and abiotic factors. In conventional citrus breeding programs, hybridization is the main method used for obtaining rootstock varieties. Between Sept and Oct 2006, controlled pollinations were carried out resulting in nine progenies, totaling 461 hybrid seedlings. The female parents were the ‘Santa Cruz Rangpur’ lime (SCRL) and the ‘Sunki of Florida’ mandarin (SFM), while the male parents, in addition to this mandarin, were the ‘Indio’ and ‘Riverside’ citrandarins, the ‘Thomasville’ citrangequat (THOM), the ‘Swingle’ citrumelo, the ‘Argentina’ citrange (AGC) and the ‘Benecke’ trifoliate orange (BKTO). Fruit setting rates of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus spp.; Poncirus trifoliata; Hybridization; Plant breeding.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000400339

Quantitative variation for grain quality in Brazilian maize populations
Provedor de dados: 63
Autores: Mittelmann,Andréa; Miranda Filho,José Branco de; Nass,Luciano Lourenço; Lima,Gustavo Júlio Melo Monteiro de; Hara-Klein,Claudete; Silva,Ricardo Machado da.
Development of maize (Zea mays L.) cultivars with high grain protein and oil concentrations and an appropriate amino acid composition, without losses in grain yield, represents a challenge in breeding programs. The objective of this work was to study the nutritional quality of ten Brazilian maize populations evaluated in three environments. A randomized block design with six replications was used. Ear yield and the concentrations of protein, oil, serine, glutamic acid, alanine, leucine, tyrosine and phenylalanine were evaluated. Individual and combined analyses of variance were performed. Populations diverged for most of the traits. Environmental effects influenced variation for most of the traits, unlike genotype-environment interaction, allowing the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Nutritional quality; Protein; Amino acids.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100008

Receptor-Like Kinase (RLK) as a candidate gene conferring resistance to Hemileia vastatrix in coffee
Provedor de dados: 63
Autores: Almeida,Dênia Pires de; Castro,Isabel Samila Lima; Mendes,Tiago Antônio de Oliveira; Alves,Danúbia Rodrigues; Barka,Geleta Dugassa; Barreiros,Pedro Ricardo Rossi Marques; Zambolim,Laércio; Sakiyama,Ney Sussumu; Caixeta,Eveline Teixeira.
ABSTRACT: The biotrophic fungus Hemileia vastatrix causes coffee leaf rust (CLR), one of the most devastating diseases in Coffea arabica . Coffee, like other plants, has developed effective mechanisms to recognize and respond to infections caused by pathogens. Plant resistance gene analogs (RGAs) have been identified in certain plants as candidates for resistance ( R ) genes or membrane receptors that activate the R genes. The RGAs identified in different plants possess conserved domains that play specific roles in the fight against pathogens. Despite the importance of RGAs, in coffee plants these genes and other molecular mechanisms of disease resistance are still unknown. This study aimed to sequence and characterize candidate genes from coffee plants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica; Coffee leaf rust; Resistance gene analogs; Molecular markers; Plant breeding.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000601101

Resistance of tomato genotypes with high level of acylsugars to Tetranychus evansi Baker &amp;amp; Pritchard
Provedor de dados: 63
Autores: Resende,Juliano Tadeu Vilela de; Maluf,Wilson Roberto; Cardoso,Maria das Graças; Faria,Marcos Ventura; Gonçalves,Luciano Donizete; Nascimento,Ildon Rodrigues do.
The Lycopersicon pennellii accession LA716 has been used as a source of arthropod pest resistance in tomato breeding programs due the high contents of acylsugars presents in its leaflets. We investigated the relationship between high foliar acylsugar contents and repellence to spider mite Tetranychus evansi in plants with contrasting acylsugar levels, selected from F2 and BC1F2 (= F2 of the first backcross towards L. esculentum) generations derived from the interespecific cross L. esculentum 'TOM-584' &lt;FONT FACE=Symbol&gt;´&lt;/FONT&gt; L. pennellii LA716. Mite resistance was assessed by a repellence test. Plants selected for high levels of acylsugars in leaflets had mite repellence levels similar to that of LA716. The high correlation confirmed the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Lycopersicon pennellii; Allelochemical; Plant breeding; Host plant resistance.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000100005

Characteristics of Bromus cartharticus Vahl (Poaceae) natural populations collected in the central area of Argentina
Provedor de dados: 63
Autores: Rosso,Beatriz; Pagano,Elba; Rimieri,Pedro; Ríos,Raúl.
Collection of Bromus catharticus Vahl was carried out in the Argentine humid and sub-humid central area. Sixty-eight natural populations are conserved for medium and long term in Pergamino Germplasm Bank and in IRB Germplasm Bank, and ten morphological and agronomic traits were evaluated in the field during two years. There was variability for the traits considered among the accessions. Those populations from the subhumid area showed differences in valuable attributes for breeding. Exploration of marginal areas for this species might be an effective way to add variability to this collection.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Evaluation; Germplasm; Prairie grass; Plant breeding.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000200019

A short review: Comparisons of high-throughput phenotyping methods for detecting drought tolerance
Provedor de dados: 63
Autores: Kim,Jaeyoung; Kim,Ki-Seung; Kim,Yoonha; Chung,Yong Suk.
ABSTRACT Drought is a major threat worldwide for crop production, especially due to the rapid climate changes. Current drought solutions involve improving irrigation system, rainwater harvesting, damming, cloud seeding, and changes of cultivation methods. Despite effective, each solution has economic, environmental, and temporal drawbacks. Among all solutions, the most effective, inexpensive and manageable method is the use of drought-tolerant cultivars via plant breeding. However, conventional plant breeding is a time-consuming and laborious task, especially for phenotypic data acquisition of target traits of numerous progenies. High-throughput phenotyping (HTP) is a recently developed method and has potential to overcome the mentioned issues. HTP offers...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sensors; Remote sensing platforms; Image analysis; Drought solution; Plant breeding.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000401801

Morphoagronomic variation in natural populations of Trifolium riograndense (Burkart)
Provedor de dados: 63
Autores: Conterato,Ionara Fatima; Dall'Agnol,Miguel; Schifino-Wittmann,Maria Teresa; Montardo,Daniel Portela; Pontalti,Gabriel Colombo; Almeida,Danielle.
Several species of Trifolium are widely cultivated as forage for animals and green manure. This work aimed to characterize and estimate through morphological and agronomic traits the genetic diversity of natural populations of T. riograndense, an important forage legume from native pastures of the state of Rio Grande do Sul, Brazil. Plant height and diameter, number of primary and secondary stolons, stolon length, number of nodes per primary stolon, internode length, primary stolon diameter, leaf area, petiole length and dry matter production were analyzed in 29 accessions. The first five attributes and dry matter production were evaluated twice. A broad phenotypic variability was observed for almost all characteristics. Positive correlations occurred...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forage legume; Genetic variability; Morphology; Plant breeding.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000600009

Relationship between seed technology research and federal plant breeding programs
Provedor de dados: 63
Autores: Krzyzanowski,F. C.
This paper deals with the contributions seed technology can provide for soybean breeding programs for seed quality. Efforts can be placed on seed quality assurance (DIACOM) to assist the production system, from genetic up to certified seed in releasing a product of high quality. Another approach is the development of screening methods, based on seed technology tests (vigor tests), for selecting genotypes according to different traits relating to seed quality. An understanding of seed quality mechanisms, such as seed-coat properties, pod-wall permeability, seed and pod resistance to fungi infection , seed shriveling and cell wall permeability, will help to define the screening procedures for this characteristic. It has been one of the most important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seed; Soyabean; Plant breeding.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161998000500015

Genetic control of the angular leaf spot reaction in common bean leaves and pods
Provedor de dados: 63
Autores: Borel,Jerônimo Constantino; Ramalho,Magno Antonio Patto; Abreu,Ângela de Fátima Barbosa; Maia,Lucas Gontijo Silva.
Information about genetic control of plant reaction to pathogens is essential in plant breeding programs focusing resistance. This study aimed to obtain information about genetic control of the angular leaf spot reaction in leaves and pods from common bean (Phaseolus vulgaris L.) line ESAL 686. This line was crossed with cultivars Jalo EEP 558 (resistant), Cornell 49-242 (resistant) and Carioca MG (susceptible). Generations F1, F2 and backcrosses (BC11 and BC21) were obtained. In the dry season (2009), parents and respective populations were evaluated for angular leaf spot reaction under field conditions. Disease severity was evaluated on leaves and pods using diagrammatic scales. Severity scores were obtained and mean and variance genetic components were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pseudocercospora griseola; Plant disease resistance; Plant breeding; Genetic control.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600009

Acylsugars in tomato leaflets confer resistance to the South American tomato pinworm, Tuta absoluta Meyr
Provedor de dados: 63
Autores: Resende,Juliano Tadeu Vilela de; Maluf,Wilson Roberto; Faria,Marcos Ventura; Pfann,Alessandra Zawadzki; Nascimento,Ildon Rodrigues do.
Acylsugars present in the accession 'LA716' of Lycopersicon pennellii play an important role in the resistance to Tuta absoluta. This paper investigates the possible association between the resistance to T. absoluta and the acylsugar contents in F2 and F2BC1 tomato plants derived from the interspecific crossing between L. esculentum 'TOM-584' and L. pennellii 'LA716'. From the F2 population, four high acylsugars and one low acylsugars plants were selected and tested for Tuta absoluta resistance along with parental lines TOM-584 and LA-716, and with the checks TOM-600 (high 2-tridecanone line with resistance to T. absoluta) and TOM-556 (low acylsugar line). The genotypes were tested under natural field infestation and were evaluated for overall plant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon pennellii; Lycopersicon esculentum; Allelochemical; Plant breeding.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100004

Breeding and genetics for the improvement of yield and quality of corn in Thailand
Provedor de dados: 106
Autores: Sujin Jinahyon.
42 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Yields; Quality; Yield trials; Variety trials; Downy mildew; Disease resistance; Thailand; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ; ประเทศไทย.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3822

การพัฒนาและปรับปรุงพันธุ์ข้าวโพดของสถาบันเทคโนโลยีราชมงคล
Provedor de dados: 106
Autores: Komsan Amnueysit; Nalon Seemoonla; Boonrod Chantaka; Narong Youngpaiboon.
4 tables
Palavras-chave: Corn; Maize; Plant breeding; Rajamagala Institute of Technology; ข้าวโพด; ข้าวโพดหวาน; ข้าวโพดคั่ว; ข้าวโพดข้าวเหนียว; การปรับปรุงพันธุ์; การพัฒนาพันธุ์.
Ano: 2004
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4206

Level of dominance in an adapted maize variety in relation to its future improvement
Provedor de dados: 106
Autores: Shehata, A.H.; Dhawan, N.L.; El-Demerdash, R.M.
3 tables
Palavras-chave: Corn; Maize; Dominance gene; Varieties; Maize improvement; Plant breeding; ข้าวโพด; ยีนเด่น; การปรับปรุงพันธุ์.
Ano: 1972
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3899

Sorghum variety improvement
Provedor de dados: 106
Autores: Jinda Jan-orn; Julee Tippayaruk; Somsri Thaiwesna; Wantana Panichkul; Wantana Kittipornpaibool; Renu Chaisorn; Somchai Piyapantavanon; Vichitr Benjasil.
18 tables
Palavras-chave: Sorghum; Plant breeding; Variety improvement; Yellow endosperm; Selection; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงพันธุ์; พันธุ์เฮกการี่; แป้งสีเหลือง; ระบบการปลูกพืช; การทดสอบผลผลิต.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3959

การวิเคราะห์ข้อมูลการถอดรหัส ที่ส่งผลต่อการแสดงออกของยีนที่แตกต่างกันในช่อดอกจากจีโนมข้าวลูกผสมและพันธุ์พ่อแม่
Provedor de dados: 106
Autores: Kulchana Ketsuwan.
Next Generation Sequencing (NGS): SOLiD System Sequencing Platform was applied to investigate the whole transcriptome of two hybrids (PTT06001H; H1 and PTT06008H: H2), two paternal lines (CK81; P1 and CK120; P2), and maternal line (IR79156; M). The data sets were aligned against the reference, precisely, the total numbers of the individual rice panicles sample aligned with Nipponbare ranking from the highest were as follows, P2 (9,747,077 reads), H1 (7,386,061 reads) , P1 (5,361,077 reads) , H2 (5,196,982 reads), and M (2,244,306 reads), respectively. The differentially expressed genes (DEGs) were identified and found that 2902, 1604, 3168, 3068, 1171, and 3031 genes were up-regulated (&gt; 2 fold) between M vs. H1, P1 vs. H1, M vs.P1, M vs. H2, P2 vs. H2,...
Tipo: PhysicalObject
Palavras-chave: Hybrid rice; Heterosis; Differentially expressed genes; DEGs; Genetic transformation; Gene expression; Transcription; Nucleotide analysis; Plant breeding; Rice productivity; ข้าว; พันธุ์ลูกผสม; ช่อดอก; การถ่ายทอดทางพันธุกรรม; การแสดงออกของยีน; การถอดรหัสพันธุกรรม; การวิเคราะห์นิวคลีโอไทด์; การปรับปรุงพันธุ์; ศักยภาพความดีเด่นเหนือพ่อแม่; การเพิ่มผลผลิต.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5659

Breeding and genetics for improvement of yield and quality of corn
Provedor de dados: 106
14 tables
Palavras-chave: Corn; Maize; Genetic improvement; Plant breeding; Genetics; Yields; Quality; ข้าวโพด; ผลผลิต; คุณภาพ.
Ano: 1971
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3751

Sorghum breeding at Khon Kaen University
Provedor de dados: 106
Autores: Prasit Jaisil; Suwat Boonjan; Aran Patanothai.
9 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Variety trials; Yields; Khon Kaen University; ข้าวฟ่าง; การปรับปรุงพันธุ์; การทดสอบผลผลิต.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3960

การวิจัยและพัฒนาพันธุ์ข้าวโพดเลี้ยงสัตว์เพื่อต้านทานโรคราน้ำค้าง
Provedor de dados: 106
Autores: Pichet Grudloyma; Somrak Noradechanon; Kanlaya Papintu.
8 tables
Palavras-chave: Corn; Maize; Field corn; Downy mildew; Plant breeding; Disease resistance; ข้าวโพด; การปรับปรุงพันธุ์; โรคราน้ำค้าง; ความต้านทานโรค.
Ano: 2004
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4200

Sorghum breeding
Provedor de dados: 106
Autores: Aran Patanothai; Prasit Jaisil; Krisakol Hutapat; Chatree Kulapapangkorn.
6 tables
Palavras-chave: Sorghum; Yield trials; TSS lines; KU lines; Regional trials; Population improvement; Plant breeding; Selection; Variety trials; Yields; ข้าวฟ่าง; การทดสอบผลผลิต; สายพันธุ์ทีเอสเอส; สายพันธุ์เคยู; การทดสอบในหลายท้องที่; การปรับปรุงประชากร.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3919

Improvement of yield and quality of corn
Provedor de dados: 106
Autores: Chamnan Chutkaew; Prakob Jan-aram; Sakol Petchmanee; Vatcharee Lertmongkol; Somrak Noradechanon; Prawit Puddhanon; Boonguer Poosri; Somsri Thaiwesna; Renu Chaisorn; Sirichai Unsrisong; Thongchai Tangpremsri; Kosol Kirdpoksub; Suvit Punsurintr; Anuroj Imsmai; Pratuan Sawangsri; Dusit Jaichareon; Vichitr Benjasil.
24 tables
Palavras-chave: Corn; Maize; Plant breeding; Early maturity; White grain; High oil; Young ear corn; Hybrids; Variety trials; Yields; Quality; ข้าวโพด; การปรับปรุงพันธุ์; พันธุ์เบา; ข้าวโพดสีขาว; ข้าวโพดน้ำมันสูง; ข้าวโพดฝักอ่อน; ข้าวโพดลูกผสม; โครงการความร่วมมือในการวิจัย.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3953

Breeding and genetics for the improvement of yield and quality of corn
Provedor de dados: 106
4 ill., 36 tables
Palavras-chave: Corn; Maize; Genetic improvement; Plant breeding; Genetics; Yields; Quality; ข้าวโพด; การปรับปรุงพันธุกรรม.
Ano: 1971
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3750

CIMMYT international program for developing disease resistant corn materials
Provedor de dados: 106
Autores: Renfro, B.L.
8 ill., 12 tables
Palavras-chave: Corn; Maize; CIMMYT; Disease resistance; Plant breeding; Downy mildew; Stunt diseases; Stalk rot; Variety trials; ข้าวโพด; ซิมมิท; ฐานพันธุกรรม; การปรับปรุงพันธุ์; โรคราน้ำค้าง; โรคลำต้นเน่า.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4095

Sorghum breeding
Provedor de dados: 106
Autores: House, L.R.
Palavras-chave: Sorghum; Plant breeding; Pest resistance; Drought resistance; Grain quality; ข้าวฟ่าง; ความคงตัวของพันธุ์; พันธุ์ลูกผสม; พันธุ์ต้านทานแมลงศัตรูพืช; พันธุ์ทนแล้ง; พันธุ์ต้านทานโรค; การปรับปรุงพันธุ์.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3957

Genetic control of disease resistance in corn
Provedor de dados: 106
Autores: Renfro, B.L.
Palavras-chave: Corn; Maize; Genetic control; Plant breeding; Disease resistance; Seedling diseases; Stalk rot; Ear rots; Foliar diseases; Rusts; Smuts; Downy mildew; Bacterial diseases; Viruses; Mycoplasma-like diseases; ข้าวโพด; การถ่ายทอดสู่รุ่นลูก; เชื้อโรค; โรคราน้ำค้าง; โรคใบไหม้; โรคราสนิม; ไวรัส; โรคลำต้นเน่า; แบคทีเรีย; โรคราเขม่าดำ; โรคที่ติดมากับเมล็ด; โรคลำต้นเน่า; โรคฝักเน่า; โรคทางใบ.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3952

Sorghum breeding of Khon Kaen University
Provedor de dados: 106
Autores: Prasit Jaisil.
3 tables
Palavras-chave: Sorghum; Plant breeding; Hybrids; Variety trials; Yields; Quality; Agronomic characters; Khon Kaen University; ข้าวฟ่าง; การปรับปรุงพันธุ์; การทดสอบผลผลิต; พันธุ์แนะนำ.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4089

Sorghum breeding
Provedor de dados: 106
7 tables
Palavras-chave: Sorghum; Plant breeding; ข้าวฟ่าง; การปรับปรุงพันธุ์.
Ano: 1974
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3792

โครงการวิจัยและพัฒนาพันธุ์ข้าวนาน้ำฝนในภาคใต้: การปรับปรุงพันธุ์ข้าวเจ้าพื้นเมืองให้บริสุทธิ์
Provedor de dados: 106
Autores: Somreang Saeton; Wattana Posiri; Rachanit Panickij; Somboon Suwanno; Rujira Preecha; Chanasirin Klinmanee; Kwanjai Kodchapakdee; Saowanee Sribua.
Purification and improvement of local non-glutinous rice is a sub-project under the Rainfed Lowland Rice Breeding in Southern Region aim s to improve local rice varieties with high yielding potential and specific good grain qualities for niche markets. The experiment s were conducted by using randomized complete block design with four replications. Inter-station yield trials were located in Phatthalung, Nakhon Si Thammarat, Pattani and Krabi rice research centers during 2010-2012. Regional yield trials were experimented in Phatthalung, Nakhon Si Thammarat and Songkla during 2011-2012 wet season. The results from the intra-station yield trials showed the average yield of Chaw Jangwat higher than Chiang Phatthalung by 21 percent and in regional yield trial,...
Tipo: PhysicalObject
Palavras-chave: Rice; Local glutinous rice; Rainfed lowland rice; Southern region rice; Grain quality; Plant breeding; Southern; Local rice variety; Yield trials; Plant production; การปรับปรุงพันธุ์; พันธุ์พื้นเมือง; ข้าวนาน้ำฝน; ภาคใต้; คุณภาพเมล็ดพันธุ์; ข้าวเจ้า; การทดสอบพันธุ์; การคัดเลือกพันธุ์; การอนุรักษ์พันธุกรรม; การส่งเสริมการปลูก; สายพันธุ์บริสุทธิ์; การผลิตพืช.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5671

การจำแนกหาสายพันธุ์ทดสอบที่มีฐานพันธุกรรมแบบกว้างและแบบแคบสำหรับการปรับปรุงพันธุ์ข้าวโพดข้าวเหนียว
Provedor de dados: 106
Autores: Wanpen Chalorcharoenying; Bhalang Suriharn; Kamol Lertrat.
Tipo: Collection
Palavras-chave: Waxy Corn; Plant breeding; Combining ability; Full diallel cross; Inbred line extraction; Identification; Narrow genetic base; Broad genetic base; ข้าวโพดข้าวเหนียว; การปรับปรุงพันธุ์; การทดสอบสายพันธุ์; พันธุ์ทดสอบ; การจำแนก; ฐานพันธุกรรมแบบกว้าง; ฐานพันธุกรรมแบบแคบ; สมรรถนะการรวมตัว; การผสมพันธุ์แบบพบกันหมด; การสร้างสายพันธุ์แท้; ลูกผสม; ผลผลิต.
Ano: 2009
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5843

การศึกษากลไกความต้านทานของข้าวสายพันธุ์ดีต่อเพลี้ยกระโดดสีน้ำตาล
Provedor de dados: 106
Autores: Phamorn Pattawatang; Jate Kotcharerk; Suradet Palawisut.
Resistance mechanism of resistant varieties and promising lines of rice to brown planthopper, Nilaparvata lugens (Ståll) compared with standard resistance (PTB33 and Rathu Heenati) and standard susceptible (Taichung Native 1 : TN1) criteria to evaluate the reaction, the response of rice varieties and promising lines to the infestation of insects. Antixenosis resistance mechanisms, which describes a reaction dislike to eat or inhibit eating, affected to oviposition or fewer oviposition. Mechanical resistance Antibiosis explained by the percentage of surviving and development of the nymph stage to the adult, impact on the life cycle of insects and low feeding rates. Tolerance mechanisms of resistance can be explained by assessments of function plant loss...
Tipo: PhysicalObject
Palavras-chave: Rice; Resistant varieties; Resistant mechanism; Promising lines; Brown plant hopper; Nilaparvata lugens; Insect pest; Antixenosis; Antibiosis; Plant breeding; ข้าว; สายพันธุ์; พันธุ์ต้านทานแมลงศัตรูพืช; เพลี้ยกระโดดสีน้ำตาล; การระบาดของแมลง; กลไกความต้านทาน; การทดสอบพันธุ์ข้าว; การปรับปรุงพันธุ์ข้าว.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5667

Sorghum breeding
Provedor de dados: 106
Autores: Aran Patanothai.
5 tables
Palavras-chave: Sorghum; Plant breeding; ข้าวฟ่าง; การปรับปรุงพันธุ์.
Ano: 1974
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3794

Brief summary of Purdue University quality protein project
Provedor de dados: 106
Autores: Bauman, L.F.
2 tables
Palavras-chave: Corn; Maize; Proteins; Quality; Plant breeding; Purdue University; ข้าวโพด; ข้าวโพดโปรตีนสูง.
Ano: 1972
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3887

Selection for flintiness in Thai composite white
Provedor de dados: 106
Autores: Virtucio, Robert H.
Palavras-chave: Corn; Maize; Selection; Flintiness; White corn; Thai composite white; Plant breeding; ข้าวโพด; ข้าวโพดหัวแข็ง; ข้าวโพดสีขาว; พันธุ์ผสมเปิด.
Ano: 1971
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3784

Sorghum breeding
Provedor de dados: 106
Autores: Krisda Samphantharak; Suranee Koonphol.
4 tables
Palavras-chave: Sorghum; Plant breeding; Selection; Variety trials; Growth; Yields; Pest resistance; Disease resistance; Genetic improvement; Hybrid program; Hybridization; Yield trials; ข้าวฟ่าง; อายุเก็บเกี่ยวสั้น; การต้านทานต่อศัตรูพืช; การปรับปรุงประชากร; โครงการพัฒนาลูกผสม; วิธีการคัดเลือก; การทดสอบผลผลิต.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3819

Efficiency of the controlled mass selection method on the improvement of Guatemala corn
Provedor de dados: 106
Autores: Klom Sombatsiri; Chalaw Chawanapong; Ampol Senanarong; Jinda Jan-orn.
1 table
Palavras-chave: Corn; Maize; Mass selection; Corn improvement; Guatemala corn; Plant breeding; ข้าวโพด; การคัดเลือกแบบคัดรวม; การปรับปรุงพันธุ์; พันธุ์กัวเตมาลา.
Ano: 1964
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3727

Breeding and genetics for the improvement of yield and quality of corn in Thailand
Provedor de dados: 106
Autores: Sujin Jinahyon; Sutat Sriwatanapongse; Bunpote Tasanasuwan; Weerasak Duangchantra; Thawatchai Prasartsrisuparb; Suvit Panichying; Jarong Rungchuang.
31 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Yield trials; Varieties; Yields; Quality; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3860

Breeding and genetics for the improvement of yield and quality of corn in Thailand
Provedor de dados: 106
Autores: Sujin Jinahyon; Sutat Sriwatanapongse; Bunpote Tasanasuwan; Weerasak Duangchantra; Tawatchai Prasatsrisupab; Suvit Panichying; Sansern Jampatong; Vichien Sakulsom.
14 ill., 18 tables
Palavras-chave: Corn; Maize; Plant breeding; Yield trials; Yields; Quality; Variety trials; Agronomic characters; Downy mildew; Infection; ข้าวโพด; การปรับปรุงพันธุ์; การทดสอบผลผลิต; ผลผลิต; คุณภาพ.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3950

พันธุกรรมความต้านทานต่อโรคใบจุดสีน้ำตาลในข้าวบาร์เลย์
Provedor de dados: 106
Autores: Kasemson Suriyawan.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Barley; Bipolaris sorokiniana; Fungi; Spot blotch disease; Plant breeding; Genetic inheritance; Disease resistance; Variety trials; Thailand; ข้าวบาร์เลย์; เชื้อรา; โรคใบจุดสีน้ำตาล; สายพันธุ์; การปรับปรุงพันธุ์; พันธุกรรม; การถ่ายทอดลักษณะ; ความต้านทานโรค; การทดสอบพันธุ์; ประเทศไทย.
Ano: 1999
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5509

Genetics and breeding for the improvement of yield and quality of corn
Provedor de dados: 106
Autores: Tawatchai Prasatsrisupab; Prapa Sripichitt; Weerasak Duangchantra; Anek Silapapun; Manop Subsorn; Sansern Jampatong; Patcharee Konghiran.
70 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Hybrids; Variety trials; Yields; Quality; Agronomic characters; Downy mildew; Disease resistance; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4044

Progress report on sweet corn breeding program 1982
Provedor de dados: 106
Autores: Tavat Lavapauraya; Prachum Jutawantana; Surapol Chowchong; Chantravipha Dhanasobhon.
3 tables
Palavras-chave: Corn; Maize; Sweet corn; Plant breeding; Hybrids; Yields; Quality; ข้าวโพด; ข้าวโพดหวาน; การปรับปรุงพันธุ์; พันธุ์ลูกผสม.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4084

Sorghum breeding
Provedor de dados: 106
Autores: Julee Tippayaruk; Somsri Thaiwesna; Wantana Kittipornpaibool; Nipon Iamsupasit; Wantana Panichkul; Teerasak Manupeerapan; Vichitr Benjasil.
5 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Yields; Quality; Agronomic characters; ข้าวฟ่าง; การปรับปรุงพันธุ์; ผลผลิตเมล็ด.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4046

High-quality protein maize
Provedor de dados: 106
Autores: Sutat Sriwatanapongse; Tawatchai Prasatsrisupab.
2 tables
Palavras-chave: Corn; Maize; High quality protein; Plant breeding; Population improvement; Yield trials; ข้าวโพด; ข้าวโพดโปรตีนสูง.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3823

Cooperation between public and private sectors
Provedor de dados: 106
Autores: Kriangsak Suwantaradon.
Palavras-chave: Corn; Maize; Sorghum; Plant breeding; Hybrids; Seed; ข้าวโพด; เมล็ดพันธุ์ลูกผสม; แผนการปรับปรุงพันธุ์; การสนับสนุนด้านการเงิน; ความร่วมมือในทางวิชาการ.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4127

International training programs
Provedor de dados: 106
Autores: Smeltzer, Dale G.
13 tables
Palavras-chave: Corn; Maize; Training programs; Variety trials; Fertilizer trials; Population density trials; Mixed cropping; Crop management; Soil management; Pest control; Plant breeding; Growth; Yields; ข้าวโพด; โครงการฝึกอบรม.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3847

Sorghum improvement
Provedor de dados: 106
Autores: Banjerd Boonsue; Ngamchuen Ratanadilok; Sutee Rayakaew; Harwood, Richard.
10 ill., 34 tables
Palavras-chave: Sorghum; Plant breeding; Yields; Quality; ข้าวฟ่าง; การเพาะปลูก; ปัญหาการผลิต; พื้นที่ปลูก.
Ano: 1971
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3753

Improvement of yield and quality of corn
Provedor de dados: 106
Autores: Teerasak Manupeerapan; Kittisri Sukapinda; Prawit Puddhanon; Nipon Iamsupasit; Sakol Petchmanee; Prakob Jan-aram; Somrak Noradechanon; Satit Areerak; Sukapong Vayuparp; Wantana Tangpremsri; Lily Kaweeta; Vichit Benjasil.
31 tables
Palavras-chave: Corn; Maize; Plant breeding; Variety trials; Yields; Quality; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4130

DOA-Maize research and development
Provedor de dados: 106
Autores: Pichet Grudloyma; Somrak Noradechanon; Surapong Prasitwattanaseree; Kalaya papintu; Manoon Pumklom.
9 tables
Palavras-chave: Corn; Maize; Population improvement; Hybrids; Cooperative program; Biotechnology; AMBIONET; Plant breeding; ข้าวโพด; การปรับปรุงประชากร; พันธุ์ลูกผสม; โครงการความร่วมมือ; เทคโนโลยีชีวภาพ; แอมไบโอเนท.
Ano: 2001
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4159

Breeding and genetics for the improvement of yield and quality in Thailand
Provedor de dados: 106
Autores: Sujin Jinahyon; Taweesak Pulum; Tawatchai Prasatsrisupab; Weerasak Duangchantra; Prapa Sripichitt; Sansern Jampatong.
33 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Population improvement; Variety trials; Yields; Quality; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; หน่วยดำเนินการ; หน่วยปฏิบัติการ; หน่วยคลังพันธุกรรม; หน่วยกิจกรรมพิเศษ; การสร้างประชากรข้าวโพด; การปรับปรุงประชากรข้าวโพด.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3954

Sorghum breeding
Provedor de dados: 106
Autores: Julee Tippayaruk; Somsri Thaiwesna; Sarewat Juttupornpong; Nipon Iamsupasit; Pratuan Sawangsri; Wantana Panichkul; Montien Samapee; Vichitr Benjasil.
6 tables
Palavras-chave: Sorghum; Sweet sorghum; Plant breeding; Variety trials; Yields; Quality; Agronomic characters; ข้าวฟ่าง; การปรับปรุงพันธุ์; ข้าวฟ่างหวาน; ข้าวฟ่างพันธุ์ทนแล้ง; โครงการความร่วมมือ; การทดสอบผลผลิต.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4132

การคัดเลือกพันธุ์และการผลิตข้าวไร่พื้นเมืองโดยเกษตรกรมีส่วนร่วมเพื่อการบริโภคในท้องถิ่น
Provedor de dados: 106
Autores: Wattana Posiri; Warunya Dantaweesin; Raumjit Nokkoul.
This research aimed to access farmer participatory breeding in selecting the local upland rice varieties for desirable agronomic traits, good cooking and eating grain characteristics. The research carried out in the land reform area of amphoes Mueang, Lamae, Thung Tako in Chumphon province. The experiment comprised 12 upland rice varieties, 11 experimental lines and 1 standard check, by using the Randomized Complete Block design with 4 replications. Results indicated that farmers had selected Samdeaun, Phukhaotong, Nahngkruan, Lebnok and Dawkkham varieties for desirable agronomic traits with reasonable uniform panicle, good tillering ability, long panicle, many secondary branches, large and heavy grains. For cooking and eating qualities, they selected...
Tipo: PhysicalObject
Palavras-chave: Upland rice; Farmer participatory; Plant breeding; Agronomic traits; Cooking qualities; Eating qualities; Food security; ข้าวไร่; เกษตรกร; การผลิตข้าว; การคัดเลือกพันธุ์; การปรับปรุงพันธุ์; การทดสอบพันธุ์; คุณภาพผลผลิต; การมีส่วนร่วม; การบริโภคในครัวเรือน; ความมั่นคงทางอาหาร; พันธุ์พื้นเมือง.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5670

Breeding and genetics for the improvement of yield and quality of corn in Thailand
Provedor de dados: 106
2 ill., 37 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Yields; Quality; Thailand; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ; ประเทศไทย.
Ano: 1974
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3790

Breeding and genetics for the improvement of yield and quality of corn
Provedor de dados: 106
Autores: Chamnan Chutkaew; Sutat Sriwatanapongse; Sansern Jampatong; Patcharee Konghiran; Boonlum Paysuwan; Chokechai Aekatasanawan; Sumpun Sittipanuwongse.
32 tables
Palavras-chave: Corn; Maize; Plant breeding; Composites; Hybrids; Yield trials; Variety trials; Yields; Quality; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; โรคราน้ำค้าง; การทดสอบผลผลิต; พันธุ์ผสมเปิด; พันธุ์ลูกผสม; เขตกึ่งร้อน; เขตอบอุ่น; ความร่วมมือกับซิมมิท; ความร่วมมือกับเอกชน.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4129

Corn breeding and genetics
Provedor de dados: 106
Autores: Ampol Senanarong; Chamnan Chutkaew; Nipon Iamsupasit; Narongsak Senanarong; Prakob Jan-aram; Sakol Petchmanee; Vatcharee Lertmongkol; Boonguer Poosri; Pismai Srisukphrasert.
14 tables
Palavras-chave: Corn; Maize; Progeny evaluation; Plant breeding; Genetics; Downy mildew; Disease resistance; Varieties; Yields; Quality; ข้าวโพด; การประเมินรุ่นลูก; โรคราน้ำค้าง; การปรับปรุงพันธุ์.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3861

Sorghum breeding progress report for 1980
Provedor de dados: 106
Autores: Aran Patanothai; Suwat Boonjan.
10 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Fertilizer trials; Variety trials; Yields; Quality; ข้าวฟ่าง; การทดสอบผลผลิต; การทดสอบปุ๋ย.
Ano: 1980
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4008

การพัฒนาสายพันธุ์เรณูเป็นหมันโดยวิธีการผสมกลับ
Provedor de dados: 106
Autores: Bang-on Thammasamisorn.
Development of new CMS lines by backcrossing was conducted at Suphan Buri Rice Research Center during 2005-2011. The objective was to develop Thai elite breeding lines to be better varieties of CMS lines adapted to the environment in Thailand. The new CMS lines will be used for research project on hybrid rice production. CMS lines from IRRI were used as donor in repeated backcrossing of 6-7 generations to the recurrent parent, Thai elite breeding line. After seven generations of repeated backcrossing two new CMS lines, SPR06186A (IR58025A/7*SPR98015-59-1-2-2-2) and SPR06189A (IR73328A/7*SPR98015-59-1-2-2-2), were developed. These two lines have one hundred percent of pollen sterility and similar agronomic traits to the recurrent parent. SPR06186A has a...
Tipo: PhysicalObject
Palavras-chave: Cytoplasmic male sterile; CMS line; Hybrid rice; Backcross; Genetic stability; Varieties; Plant breeding; Growth; Seeds quality; Seed set; Pollen sterility; สายพันธุ์เรณูเป็นหมัน; การผสมกลับ; ข้าวลูกผสม; การผสมพันธุ์ข้าว; การปรับปรุงพันธุ์; ลักษณะประจำพันธุ์; การทดสอบพันธุ์; ระยะเวลาออกดอก; เปอร์เซ็นต์การติดเมล็ด; คุณภาพเมล็ดพันธุ์.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5703

การพัฒนาข้าวพันธุ์บางแตนให้ต้านทานเพลี้ยกระโดดสีน้ำตาลโดยใช้เครื่องหมายโมเลกุล
Provedor de dados: 106
Autores: Reunreudee Kaewcheenchai; Sommai Sriwisut; Suradet Palawisut; Apichart Noenplab; Peera Dungsoongnern; Udompan Promnart.
Bahng Taen is a non-glutinous, non-photoperiod sensitive, short duration and high yielding rice variety. This variety showed resistance against brown planthopper (BPH) in the Eastern region, but the resistance has decreased drastically. Therefore, marker-assisted backcrossing was applied to improve BPH resistance by introgression of a Bph3 resistant gene from PTB33  and  Rathu Heenati into Bahng Taen. Two SSR markers, RM 170 for Bahng Taen with PTB33 crossing and RM 190 for Bahng Taen with Rathu Heenati crossing, were used  in combination with plant type selection to obtain the target plants with Bph3 gene. Twenty six and thirty heterozygous BC4F1 plants were developed from the cross of Bahng Taen with PTB33 and Bahng Taen with Rathu Heenati, respectively....
Tipo: PhysicalObject
Palavras-chave: Bahang Taen; Brown planthopper; Back crossing; Rice variety; Marker assisted selection; Insect resistance; Plant breeding; Gene; ข้าว; เพลี้ยกระโดดสีน้ำตาล; การผสมกลับ; การคัดเลือกพันธุ์; พันธุ์บางแตน; เครื่องหมายโมเลกุล; ความต้านทานแมลง; การถ่ายทอดพันธุกรรม; การปรับปรุงพันธุ์; ยีน.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5677

Objectives and breeding procedures in maize
Provedor de dados: 106
Autores: Dhawan, N.L.
Palavras-chave: Corn; Maize; Corn breeding; Plant breeding; ข้าวโพด; การปรับปรุงพันธุ์.
Ano: 1964
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3731

ข้าวนาชลประทานข้าวสายพันธุ์ดีเด่น PSL05101-93-1-3-2
Provedor de dados: 106
Autores: Benjawan Phonkhod; Acharaporn Na Lampang Noenplab; Phamorn Pattawatang; Sa-ang Chirinte; Sumalee Sangprem; Wilai Palawisut; Pornsuree Kanjana; Wanakorn Intrarastit; Cawaporn Phumchoey; Duang-orn Ariyapruek; Sard Toktiwa; Chuanchom Deerusamee; Mungmat Wangka; Duangporn Withoonjit; Chairat Channoo; Duangkamon Boonchuay; Jaturong Pipatpiriyanon; Preamkamon Moonnilta; Wiphavadee Chamnan; Nayakorn Sa-nguakaew; Wantana Sriratnasak; Wichuda Rattanakarn; Rasamee Dhitikiattipong; Suradet Palawisut.
Irrigated paddy fields are the rice growing areas having high yield potential.Two significant factors enhancing high yield are the well-adapted variety and good in rice production management. PSL05101-93-1-32 is a promising rice line derived from the 3-way cross of PSL00508-3-1-1-4/IR66738-118-1-2//IR67966-188-2-2-1 in 2005. It had as high yield as 965 kg/rai (6.03t/ha).The average grain yield was 730 kg/rai which was greater than PSL2, CNT1 and RD47 by 14, 13 and 7%, respectively. The maturity was 115 days after sowing by transplanting method. Plant height was 83-90 cm. This promising line is a non-glutinous long grain rice having straw-color husk. The paddy rice seed dimensions was 10.4×2.61×2.10 mm. by width x length x thickness, respectively.The paddy...
Tipo: PhysicalObject
Palavras-chave: Irrigated rice; High yield; Brown planthopper; Cold tolerance; Long grain; Plant breeding; Hybrid varieties; Rice; Rice characters; Cold resistance; Pests resistance; นาชลประทาน; ผลผลิตสูง; เพลี้ยกระโดดสีน้ำตาล; ความทนทานต่อความเย็น; ข้าวสารเมล็ดยาวชั้น 1; ข้าว; สายพันธุ์ลูกผสม; การปรับปรุงพันธุ์; การคัดเลือกพันธุ์; ลักษณะประจำพันธุ์; ลักษณะเมล็ดพันธุ์; คุณลักษณะทางประสาทสัมผัส; คุณภาพผลผลิต; ความต้านทานแมลงศัตรูพืช.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5687

ข้าวนาน้ำฝนสายพันธุ์ดีเด่น PSL97060-17-CNT-1-2-1
Provedor de dados: 106
Autores: Anakkapon Boonchuay; Somphong Choeyphan; Apichat Noenplab; Jaturong Pipatpiriyanon; Pongsa Sukserm; Acharaporn Na Lampang Noenplab; Nalinee Chiengwattana; Supattra Suwanthada; Chutiwat Wannasai; Sa-ang Chairinte; Duang-orn Ariyapruek; Kawaporn Puumchoey; Sumaree Sangprem; Jet Kotcharoek; Pamorn Pattawatang; Duangkamon Boonchuay; Chairat Channoo; Duangporn Withoonjit; Phremkamon Munninta; Wiphawadee Chamnan; Nayakorn Sa-nguankaew; Wantana Sriratanasak.
In wet season, the rainfed area in the Lower North of Thailand region has abundance soil and water. It’s suitable for grow the rice variety which high yield potential. However, the favorite rice varieties have often had low yield and highly susceptible to rice pests. The rice breeding for high yield and resistance to rice insect pests and rice diseases but has maintained favorite good qualities for eating. It’s the importance alternative of farmer for change variety to good qualities, increase yield and adequate to consumption. The promising lines designated PSL97060-17-CNT-1-2-1 was obtained the three way cross between KLG88028-22-1-2-2 and F1 of SPR88096-17-3-2-2 and IR60 at Phitsanulok Rice Research Center. After that Chai Nat Rice Research Center has...
Tipo: PhysicalObject
Palavras-chave: Rice; Rice production; Non-glutinous rice; Photoperiod sensitive; Early maturity; Varieties; Plant breeding; Growth; Yields; Seeds quality; Cooking quality; Rainfed; Lower north; ข้าวเจ้า; การผลิตข้าว; นาน้ำฝน; ข้าวไวต่อช่วงแสง; ข้าวอายุเบา; พันธุ์; การปรับปรุงพันธุ์พืช; การเติบโต; ผลผลิต; คุณภาพเมล็ดพันธุ์; คุณภาพหุงต้ม; ภาคเหนือตอนล่าง.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5701

Overview of population development for supporting hybrid maize breeding program
Provedor de dados: 106
Autores: Jampatong, S.; Aekatasanawan, C.; Balla, C.; Chulchoho, N; Sangkaeo, K.
7 tables
Palavras-chave: Corn; Maize; Germplasm; Synthetic population; Plant breeding; ข้าวโพด; เชื้อพันธุกรรม; ประชากร; พันธุ์สังเคราะห์.
Ano: 2001
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4158

Sorghum breeding
Provedor de dados: 106
Autores: Julee Tippayaruk; Somsri Thaiwesna; Teerasak Manupeerapan; Nipon Iamsupasit; Wantana Tangpremsri; Wantana Panichkul; Satit Areerak; Pratuan Sawangsri; Veerayuth Saisanit; Suwit Tippinol; Chalaem Romphryk; Tuksina Sunsayavichas; Vichitr Benjasil.
2 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Variety trials; Yields; Quality; Agronomic characters; ข้าวฟ่าง; การปรับปรุงพันธุ์; การทดสอบพันธุ์ระหว่างประเทศ; การทดสอบผลผลิต.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4087

New baby corn variety : CMB 8704
Provedor de dados: 106
Autores: Prawit Puddhanon; Sakol Petchmanee; Penkae Nattribhop; Supachai Kaewmeechai; Suvit Punsurintr; Vichit Kajornmalee.
Palavras-chave: Corn; Maize; Baby corn; CMB 8704; Plant breeding; ข้าวโพด; ข้าวโพดฝักอ่อน; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ.
Ano: 1989
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4328

การประเมินความคงตัวของความต้านทานต่อไวรัสใบด่างเขียวในแตงกวาจากสายพันธุ์การค้ารุ่น S2 และ S3 และกลุ่มที่เข้าสู่ inbred lines ที่ต้านทานต่อเชื้อ CGMMV
Provedor de dados: 106
Autores: Premruethai Unruean; Kamol Lertrat; Petcharat Thummabenjapone.
Cucumber green mottle mosaic virus (CGMMV) is a member of Tobamovirus, it causes green mottle mosaic disease in cucurbits with the virus being transmitted through seed. The aims of this research were emphasized on evaluation the stability of CGMMV resistant phenotype in self fertilization generation S2 and S3 of new cucumber lines (10 lines) generated from commercial cucumber varieties and tentatively inbred lines(11 lines) from previously screening program. The results showed that the good candidate cucumber lines from commercial source which resistant (R) to moderate resistant (MR) to CGMMV were No.P10 line 6-1, No.P19 line 2-1 and No.P19 line 5-1. The self generation lines derived from No.P3 x P4 showed stability in R-MR phenotype. For tentatively...
Tipo: PhysicalObject
Palavras-chave: Cucumber; Cucurbit virus disease; Plant breeding; Disease resistant; Variety screening; Commercial varieties; Inbred line; Cucumber green mottle mosaic virus; CGMMV; Tobamovirus; Green mottle mosaic disease; แตงกวา; เชื้อไวรัส; โรคไวรัสด่างเขียว; การปรับปรุงพันธุ์พืช; ความต้านทานโรค; การคัดเลือก; สายพันธุ์การค้า; สายพันธุ์แท้; ชั่วรุ่นผสมตัวเอง; การประเมินลักษณะความต้านทาน.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5772

Sorghum breeding
Provedor de dados: 106
Autores: Krisda Samphantharak; Sutee Rayakaew; Thamrongsilpa Pothisoong.
20 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Variety trials; Hybrids; Yields; Quality; Agronomic characters; ข้าวฟ่าง; การปรับปรุงพันธุ์; พันธุ์เบา; พันธุ์ต้นเตี้ย; พันธุ์หนัก; พันธุ์ต้นสูง; พันธุ์ลูกผสม.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4088

Improvement of yield and quality of corn
Provedor de dados: 106
Autores: Chamnan Chutkaew; Teerasak Manupeerapan; Sakol Petchmanee; Somrak Noradechanon; Prawit Puddhanon; Permpoon Sarnthoy; Tongchai Tangpremsri; Wantana Tangpremsri; Lily Nimsung; Satit Areerak; Somsri Thaiwesna; Atcharee Rakla; Nipon Iamsupasit; Kittisri Sukapinda; Vichitr Benjasil.
30 tables
Palavras-chave: Corn; Maize; Plant breeding; Variety trials; Yields; Quality; Agronomic characters; ข้าวโพด; ข้าวโพดสีเหลือง; พันธุ์เบา; ข้าวโพดสีขาว; ข้าวโพดน้ำมันสูง; ข้าวโพดลูกผสม; โครงการความร่วมมือทางการวิจัย.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3749

การปรับปรุงพันธุ์ต้านทานโรคไวรัสใบหงิกเหลืองของมะเขือเทศ
Provedor de dados: 106
Autores: Kanlayanee Chaichana; Prasartporn Smitamana; Maneechat Nikronpun.
Improvement of tomato for resistance to tomato yellow leaf curl virus (TYLCV) were carried out byusing a pedigree and backcrossing methods and crossing between resistant parent H-24 with susceptible parents CT-1 and CT-2. The virus was transmitted by viruliferous whiteflies and virus infection was detected by sandwich ELISA. F2 generation showed moderate resistance with scores ranging from 1.58-3.21. Segregation of disease resistance was observed among the population. Virus detection of the F2 populations (scoring 1 or 2) showed virus titer which were not statistically different from H24 but were significantly different from CT-1, CT-2 and susceptible control. The disease severity and virus titer in infected plants of F2 populations showed positive...
Tipo: PhysicalObject
Palavras-chave: Tomatoes; Tomato yellow leaf curl; Viroses; Plant breeding; Hybrid; Fertilization; Virus resistance; มะเขือเทศ; โรคใบหงิกเหลือง; โรคที่เกิดจากเชื้อไวรัส; การปรับปรุงพันธุ์พืช; ความต้านทานโรค; พันธุ์ลูกผสม; การคัดเลือกพันธุ์; วิธีการผสมพันธุ์.
Ano: 2009
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5720

Corn breeding and genetics
Provedor de dados: 106
Autores: Ampol Senanarong.
28 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Variety trials; Selection; Downy mildew; Disease resistance; Growth; Yields; Quality; ข้าวโพด; การปรับปรุงพันธุ์.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3825

โครงการปรับปรุงพันธุ์พืชในองค์กรขนาดเล็กแต่อยู่รอด
Provedor de dados: 106
Autores: Taweesak Pulam.
Tipo: Collection
Palavras-chave: Plant breeding; Survival; Germplasm; โครงการปรับปรุงพันธุ์พืช; องค์กรขนาดเล็ก; ธุรกิจการเกษตร; ความอยู่รอด; นักปรับปรุงพันธุ์พืช; ผู้ร่วมงาน; เชื้อพันธุกรรม; วิธีการปรับปรุงพันธุ์; การบริหารจัดการ.
Ano: 2011
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5152

ปรับปรุงพันธุ์ข้าวให้ถูกใจเกษตรกร
Provedor de dados: 106
Autores: Grienggrai Pantuwan.
Tipo: Collection
Palavras-chave: Farmer participation; Plant breeding; Acceptance by farmers; ข้าว; การปรับปรุงพันธุ์ข้าว; การยอมรับของเกษตรกร; การมีส่วนร่วมของเกษตรกร; พันธุ์.
Ano: 2005
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5236

Research on sorghum varietal improvement
Provedor de dados: 106
Autores: Jinda Jan-orn; Teerasak Manupeerapan; Opas Jantasuk; Somsri Thaiwesna; Siroj Prakunhungsit.
1 ill., 4 tables
Palavras-chave: Sorghum; Hegari; Population improvement; Varietal improvement; Plant breeding; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงประชากร; พันธุ์เฮกการี่.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3918

Effects of recurrent selection in two sorghum populations
Provedor de dados: 106
Autores: Prasit Jaisil; House, L.R.; Bholanath Verma.
Palavras-chave: Sorghum; Recurrent selection; Plant breeding; ข้าวฟ่าง; การคัดเลือกแบบวงจร; ประชากรข้าวฟ่าง.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4134

Mass selection for early maturity in Thai composite-1
Provedor de dados: 106
Autores: Wiroreno, Otjo W.
1 ill., 2 tables
Palavras-chave: Corn; Maize; Mass selection; Early maturity; Thai composite no.1; Plant breeding; ข้าวโพด; การคัดเลือกแบบคัดรวม; พันธุ์เบา.
Ano: 1971
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3782

Breeding and genetics for the improvement of grain yield and quality of corn
Provedor de dados: 106
10 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Yields; Quality; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ; ประเทศไทย.
Ano: 1974
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3791

Development of supersweet corn F1 hybrids and composites
Provedor de dados: 106
Autores: Tavat Lavapauraya; Chantravipha Dhanasobhon; Prachum Jutawantana; Kosol Chaimanee.
7 tables
Palavras-chave: Corn; Maize; Super sweet corn; F1 hybrids; Composites; Plant breeding; Varieties; Yields; ข้าวโพด; ข้าวโพดหวานพิเศษ; ข้าวโพดลูกผสม; ข้าวโพดพันธุ์ผสมเปิด; การปรับปรุงพันธุ์.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3956

Improvement of yield and quality of corn
Provedor de dados: 106
Autores: Chamnan Chutkaew; Teerasak Manupeerapan; Sakol Petchmanee; Somrak Noradechanon; Vatcharee Lertmongkol; Phermphul Sarnthoy; Prawit Puddhanon; Tongchai Tangpremsri; Wantana Tangpremsri; Somsri Thaiwesna; Sirichai Unsrisong; Atcharee Rakla; Nipon Iamsupasit; Nipa Kaewborisutsakul; Chamnan Malaithong; Anuroj Imsmai; Pratuan Sawangsri; Sompob Orndee; Vichitr Benjasil.
21 tables
Palavras-chave: Corn; Maize; Plant breeding; Yield trials; Variety trials; Yields; Quality; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4083

Sweet corn breeding
Provedor de dados: 106
Autores: Tavat Lavapauraya.
3 tables
Palavras-chave: Corn; Maize; Sweet corn; Plant breeding; Selection; Variety trials; Growth; Yields; ข้าวโพด; ข้าวโพดหวาน; การปรับปรุงพันธุ์; โรคราน้ำค้าง; รสชาติ; ผลผลิตฝักสด.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3824

การสืบค้นหาแหล่งพันธุกรรมความต้านทานโรคใบหงิกและโรคเขียวเตี้ยของข้าวป่าและข้าวปลูก เพื่อใช้ในการปรับปรุงพันธุ์
Provedor de dados: 106
Autores: Kanuengnij Srivilai; Witchuda Rattanakarn; Suniyom Taprap; Rogelio Cabunagan.
Total of 130 rice accessions from IRRI were tested for resistance to rice ragged stunt virus (RRSV) and rice grassy stunt virus (RGSV). The viruses were transmitted by brown planthopper (BPH) vector. Virus-carrying BPH was transferred to healthy seedlings in mylar cakes. Disease symptom was observed and scored at 30 days after inoculation. Viral infection was also detected by ELISA test.  Visual score showed RRSV and RGSV infection ranged from 5.00-78.57% and 7.14-100%, respectively. The results correspond to that of ELISA test, but the ELISA test gave higher percentage of infection. Based on percentage of infection and disease index, 12 accessions were identified as resistance to RRSV; 37 accessions as moderately resistance; 25 accessions as tolerance. No...
Tipo: PhysicalObject
Palavras-chave: Wild rice; Cultivated rice; Ragged stunt disease; Grassy stunt disease; Plant disease resistance; Plant breeding; ข้าวป่า; ข้าวปลูก; โรคใบหงิก; โรคเขียวเตี้ย; เชื้อไวรัส; ความต้านทานโรคพืช; การปรับปรุงพันธุ์; แหล่งพันธุกรรม; การทดสอบพันธุ์.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5688

Sorghum breeding
Provedor de dados: 106
Autores: Krisda Samphantharak; Sutee Rayakaew; Thamrongsilpa Pothisoong.
7 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Yields; Quality; Agronomic characters; ข้าวฟ่าง; การปรับปรุงพันธุ์; พันธุ์เบา; ต้นเตี้ย; พันธุ์หนัก; พันธุ์ต้นสูง; พันธุ์ต้านทาน; หนอนแมลงวันเจาะยอดข้าวฟ่าง; พันธุ์ต้านทานโรค; โรคราบนช่อข้าวฟ่าง; ข้าวฟ่างหวาน; โครงการลูกผสม.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4045

Sorghum breeding
Provedor de dados: 106
Autores: Krisda Samphantharak; Prachum Jutawantana; Tisti Puntharo.
8 tables
Palavras-chave: Sorghum; Plant breeding; Pest resistance; Disease resistance; Hybrids; Yield trials; Selection; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงพันธุ์; พันธุ์เบา; พันธุ์ต้านทานโรค; พันธุ์ต้านทานแมลงศัตรู; พันธุ์ลูกผสม; การทดสอบผลผลิต; การสอบพันธุ์ในไร่นาเกษตรกร.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3863

Breeding and genetics for the improvement of yield and quality of corn in Thailand
Provedor de dados: 106
Autores: Tawatchai Prasatsrisupab; Anek Silapapun; Prapa Sripichitt; Patcharee Konghiran; Weerasak Duangchantra; Manop Subsorn; Sansern Jampatong.
38 tables
Palavras-chave: Corn; Maize; Plant breeding; Variety trials; Yields; Quality; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ.
Ano: 1980
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4006

Improvement of yield and quality of corn
Provedor de dados: 106
Autores: Chamnan Chutkaew; Teerasak Manupeerapan; Prakob Jan-aram; Sakol Petchmanee; Vatcharee Lertmongkol; Boonguer Poosri; Somrak Noradechanon; Sirichai Unsrisong; Phermphul Sarnthoy; Somsri Thaiwesna; Atcharee Rakla; Prawit Puddhanon; Renu Chaisorn; Tongchai Tangpremsri; Wantana Kittipornpaibool; Nipa Kaewborisutsakul; Pratuan Sawangsri; Chamnan Malaithong; Anek Suwanhong; Sompob Orndee; Vichitr Benjasil.
43 tables
Palavras-chave: Corn; Maize; Plant breeding; Yields; Quality; Variety trials; Yield trials; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; ผลผลิต; คุณภาพ.
Ano: 1980
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4005

Breeding for sugarcane downy mildew resistance in corn in Taiwan
Provedor de dados: 106
Autores: Chang, S.C.
1 table
Palavras-chave: Corn; Maize; Maize breeding; Sugarcane downy mildew; Plant breeding; Taiwan; ข้าวโพด; การปรับปรุงพันธุ์; โรคราน้ำค้าง.
Ano: 1972
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3900

Sorghum variety improvement
Provedor de dados: 106
Autores: Prakob Jan-aram; Teerasak Manupeerapan; Jinda Jan-orn; Permphul Chomjinda; Kanoktip Lertprasertrat; Opas Jantasuk; Chalaem Romphryk; Wantana Panichkul; Julee Lamyong.
14 tables
Palavras-chave: Sorghum; Plant breeding; Selection; Hybrids; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงพันธุ์; ข้าวฟ่างพันธุ์ชาลลุ; ข้าวฟ่างลูกผสม; คุณภาพทางอาหารสัตว์; การทดสอบผลผลิต.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3864

Sweet corn quality improvement
Provedor de dados: 106
1 table
Palavras-chave: Corn; Maize; Sweet corn; Plant breeding; Yields; Quality; ข้าวโพด; ข้าวโพดหวาน; คุณภาพ.
Ano: 1971
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3752

ข้าวเหนียวต้านทานแมลงบั่วสายพันธุ์ดีเด่น PRE04012-20-1-1-1
Provedor de dados: 106
Autores: Premrudee Pintaya; Kakanang Punyalue; Adul Sitthiwong; Pannipa Yajai; Kanjana Piboon; Kulchana Ketsuwan; Pitchanan Kunghair; Yawvaluck Kanyamee; Sakul Mulkum; Pairoj Chotinisakorn; Pichatorn Rueangdej; Payapbhubes Markkool; Nootjarin Jungkhun; Kornsiri Srinil; Sivapong Naruebal; Nongnuch Pradit; Silawan Chantharabutt; Phannee Jitta.
Gall midge is a major problem in the upper Northern part, a glutinous rice line PRE04012-20-1-1-1 was derived from a single cross between Sahm Samai and PRE96011-SPT-1-2-2-1-1 since 2004. The farmer field trials had tested in 2011-2013. In the wet season the high potential yield was 1,043 kg/rai while the average yield was 703 kg/rai which is non significant different from 710 kg/rai of RD14 and 704 kg/rai of SPT1. In the dry season the high potential yield  was 916 kg/rai while the average yield of PRE04012-20-1-1-1 and SPT1 were 714 kg/rai, but lower than RD14 (759 kg/rai) by 6 percent. The fertilizer test showed on the maximum yield of 780 kg/rai at the nitrogen level 20.4 kg. The line performed gall midge resistance (R-MS in green house, R-S in field...
Tipo: PhysicalObject
Palavras-chave: Glutinous rice; Non-photoperiod sensitive; Variety; Plant breeding; Selection; Pest resistance; Gall midge; Yields; Quality; Farmer adoption; Upper north region; ข้าวเหนียว; ข้าวไม่ไวต่อแสง; พันธุ์; การปรับปรุงพันธ์ุ; การคัดเลือกพันธุ์; การต้านทานแมลงศัตรูพืช; แมลงบั่ว; ปริมาณผลผลิต; คุณภาพเมล็ดข้าว; การยอมรับของเกษตรกร; ภาคเหนือตอนบน.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5657

การพัฒนาสายพันธุ์แท้ที่มีศักยภาพสำหรับเป็นแหล่งเชื้อพันธุกรรมในโครงการปรับปรุงพันธุ์ข้าวโพดข้าวเหนียวลูกผสม
Provedor de dados: 106
Autores: Surasak Pidkwamlub; Bunyarit Sinkangam.
The sixty-two of the exotic germplasms waxy corn were performed. The agronomic characters were averaged 45 - 52 days to flowerings, opaque and small kernel. Almost all plant aspects were green and less uniformity, unfortunately, downy mildew was susceptible. Three methods for S1 selection were (1) half - sib (HS) (2) full - sib (FS) and (3) S1 (S1) progeny test. Each method was received for two ears. Also, the agronomic characters were recorded, 45 - 52 days to tasseling and 46 - 52 days to silking. Economic yields, green and white weight were 588 - 1,063 and 340 - 631 kg/rai, namely, UPDW-0013 was showed the best of both. Furthermore, UPCW-0004 showed that the best shelling (71.16%). And, cutting trait was UPWC-0002 (66.67%). Afterward, 26 lines are...
Tipo: PhysicalObject
Palavras-chave: Zea mays; Waxy corn; Plant breeding; Selective breeding; Gene; Inbred line; Hybrid breeding; Crop improvement; ข้าวโพดข้าวเหนียว; พันธุ์ลูกผสม; การปรับปรุงพันธุ์พืช; การคัดเลือกสายพันธุ์; พันธุกรรม; การทดสอบสายพันธุ์; ผลผลิต; แหล่งเชื้อพันธุกรรม.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5739

Sorghum breeding
Provedor de dados: 106
Autores: Krisda Samphantharak; Sutee Rayakaew; Thamrongsilpa Pothisoong.
9 tables
Palavras-chave: Sorghum; Plant breeding; Hybrids; Variety trials; Yields; Quality; Agronomic characters; ข้าวฟ่าง; การปรับปรุงพันธุ์; พันธุ์ลูกผสม; สายพันธุ์ เอ; สายพันธุ์ บี; การทดสอบพันธุ์.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4133

International training
Provedor de dados: 106
Autores: Smeltzer, Dale G.
8 tables
Palavras-chave: Corn; Maize; Training programs; Varietal trials; Varieties; Fertilizer trials; Population density trials; Soil management trials; Crop management; Weed control; Plant breeding; Downy mildew; Growth; Yields; ข้าวโพด; โครงการฝึกอบรม.
Ano: 1974
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3813

สถานการณ์งานวิจัย ปี 2555 ศูนย์วิจัยข้าวพระนครศรีอยุธยา
Provedor de dados: 106
Autores: Marisa Yurasit; Pailin Nieuwenhuis; Supavinee Suangtho; Kritkamol Paothong; Pornpan Yanaso; Apichart Lawanprasert.
Responsibilities of Phra Nakorn Si Ayutthaya Rice Research Center are research and development on rice production such as varieties improvement, plant production , cultural practice, seed technology, seed production and appropriate technology transfer for farmers. There were  9 projects and 32 activities in 2012 fiscal budget as follows : 11 activities in the project on variety research and development in rainfed area, 3 activities in the project on variety research and development in irrigated area, 5 activities in the project on variety research and development in hybrid rice, 2 activities in the project on conservation and ultilization of rice genetic resource, 1 activity in the project on applied biotechnology to rice research and development, 2...
Tipo: PhysicalObject
Palavras-chave: Rainfed rice; Rice production; Irrigated rice; Hybrid rice; Seed technology; Organic rice; Seed production; Research project; Pra Nakon Sri Ayutthaya Rice Research Center; Ayutthaya province; Plant breeding; Rainfed lowland rice; ข้าวนาน้ำฝน; ข้าวนาสวน; ข้าวนาชลประทาน; ข้าวลูกผสม; วิทยาการเมล็ดพันธุ์; เกษตรอินทรีย์; การผลิตเมล็ดพันธุ์; โครงการวิจัย; การดำเนินงาน; ศูนย์วิจัยข้าวพระนครศรีอยุธยา; จ.อยุธยา; การปรับปรุงพันธุ์; การผลิตข้าว; การทดสอบพันธุ์.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5705

Sorghum breeding
Provedor de dados: 106
Autores: Aran Patanothai; Hasachai Boonjoong; Sutiporn Anansuchatkul; Kamol Lertrat.
16 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Lines; Growth; Yields; ข้าวฟ่าง; การทดสอบผลผลิต; การประเมินสายพันธุ์.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3821

1981 Progress report on sorghum breeding
Provedor de dados: 106
Autores: Prasit Jaisil; Aran Patanothai.
3 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Yields; Quality; ข้าวฟ่าง; การปรับปรุงพันธุ์; การทดสอบผลผลิต.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4047

Sorghum breeding and genetic improvement
Provedor de dados: 106
4 ill., 9 tables
Palavras-chave: Sorghum; Plant breeding; Genetic improvement; ข้าวฟ่าง; การปรับปรุงพันธุ์.
Ano: 1974
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3793

Improvement of corn varieties in Vietnam
Provedor de dados: 106
Autores: Yo Dinh Long.
2 tables
Palavras-chave: Corn; Maize; Corn improvement; Vietnam; Plant breeding; ข้าวโพด; การปรับปรุงพันธุ์; เวียดนาม.
Ano: 1964
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3730

Improvement and development of sweet corn and baby corn for fresh consumption and processing
Provedor de dados: 106
Autores: Tavat Lavapauraya; Pramoj  Saritnirand; Surapol Chowchong; Prachum Jutawantana; Suranee Thongluang; Yupapan Chuthathong; Kulvadee Trongpanich.
4 ill., 5 tables
Palavras-chave: Corn; Maize; Sweet corn; Baby corn; Fresh ear corn; Plant breeding; Consumption; Production; ข้าวโพด; ข้าวโพดหวาน; ข้าวโพดฝักอ่อน; ข้าวโพดฝักสด; การปรับปรุงพันธุ์; การบริโภค; การผลิต.
Ano: 1987
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4275

CIMMYT corn breeding program conducted in Thailand
Provedor de dados: 106
Autores: Renfro, B.L.
6 ill.
Palavras-chave: Corn; Maize; CIMMYT; Plant breeding; Variety trials; Yields; Quality; ข้าวโพด; ซิมมิท; การปรับปรุงพันธุ์; ประชากร 22; ประชากร 28; ประชากร 31.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4131

High quality protein maize
Provedor de dados: 106
Autores: Sutat Sriwatanapongse; Tawatchai Prasatsrisupab.
4 tables
Palavras-chave: Corn; Maize; Plant breeding; High quality protein; Lysine; Triptophan; Opaque-2; Yield trials; Variety trials; Yields; ข้าวโพด; โปรตีนข้าวโพด; ไลซีน; คุณภาพ; โอเพค 2; การปรับปรุงประชากร.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3862

Sweet corn and vegetable corn improvement
Provedor de dados: 106
Autores: Thip Lekagul; Jansamoot Sarakul; Somsri Thaiwesna; Suvit Punsurintr; Chamnan Chutkaew; Vichitr Benjasil.
1 table
Palavras-chave: Corn; Maize; Sweet corn; Vegetable corn; Glutinous corn; Plant breeding; Variety trials; Yields; Agronomic characters; ข้าวโพด; ข้าวโพดหวาน; ข้าวโพดฝักสด; ข้าวโพดข้าวเหนียว; การปรับปรุงพันธุ์.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3955

Choice of parents to develop a synthetic variety
Provedor de dados: 106
Autores: Mochizuki, Noboru.
1 ill., 1 table
Palavras-chave: Corn; Maize; Synthetic variety; Parent lines; Plant breeding; Yields; ข้าวโพด; พันธุ์สังเคราะห์; สายพันธุ์พ่อแม่.
Ano: 1972
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3896

Improvement of yield and quality of corn
Provedor de dados: 106
Autores: Chamnan Chutkaew; Nipon Iamsupasit; Prakob Jan-aram; Sakol Petchmanee; Sirichai Unsrisong; Vatcharee Lertmongkol; Boonguer Poosri; Pismai Srisukphrasert; Somrak Noradechanon; Opas Jantasuk; Acharee Prasarn; Somsri Thaiwesna; Chawana Boonreung; Kosol Kirdpoksub; Pratuan Sawangsri.
19 tables
Palavras-chave: Corn; Maize; Plant breeding; Variety trials; Yields; Agronomic characters; ข้าวโพด; การปรับปรุงพันธุ์; แหล่งของเชื้อพันธุกรรม; โรคราน้ำค้าง; ข้าวโพดน้ำมันสูง; โครงการความร่วมมือ.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3951

Sorghum breeding
Provedor de dados: 106
Autores: Aran Patanothai; Prasit Jaisil; Chaicharn Wongsaman; Suchart Tangchupong.
9 tables
Palavras-chave: Sorghum; Plant breeding; Yield trials; Selection; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงพันธุ์; การทดสอบผลผลิต.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3865

Apomixis: ความฝันของนักปรับปรุงพันธุ์พืช
Provedor de dados: 106
Autores: Varapong Camarerk.
Concerning the benefits of genetic engineering to small farmers, some people may think about apomixis. This characteristic can be used to produce seeds that are genetically identical to the mother plants. This article discusses about a research progress on apomixis in crops made by several research groups and its impact on seed industries, small farmers and the environment.
Tipo: Collection
Palavras-chave: Rice; Genetic engineering; Plant breeding; Seed industry; Apoximis; Seeds; ข้าว; การตัดต่อพันธุกรรม; การปรับปรุงพันธุ์; อุตสาหกรรมเมล็ดพันธุ์; อะโพมิซิส; เมล็ดพันธุ์; การสืบพันธุ์แบบไม่อาศัยเพศ; การใช้ประโยชน์.
Ano: 2007
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5298

ข้าวหอมสายพันธุ์ CCS06039-KLG-8-3-5-1
Provedor de dados: 106
Autores: Prakobkit Dangthaisong; Kemporn Petcharaporn; Benjapol Luad-Ngern; Peerapol Ratana; Supaporn Chanbuathong; Kasem Soontrajarn; Kanya Cheaupan; Sunanta Wongpiyachon; Nittaya Ruensuk; Vasana Panpeng; Adul Kridsawadee; Sunanta Mueanpol; Watcharee Sukviwat; Kanchana Klakhaeng; Manika Noi-iam; Bang-on Thammasamisorn; Chalermchat Luechaikham; Amornrat In-man; Pattanasak Chansong; Satit Tayapat; Surin Tritilanon; Prinya Chinnoros; Prachack Lengbumrung; Peera Dungsoongnern; Udompan Promnart; Rueanrudee Khaewchueanchai; Supavinee Suongtoe; Marisa Urasit; Suniyom Taprap; Kingkaw Kunket; Anchalee Prasertsak.
CCS06039-KLG-8-3-5-1 is a non-glutinous, non-photoperiod  sensitive and aromatic rice line derived  from a cross between PSBRc54 and IR22. The single cross hybridization was made in 2006 at  Bang Khen  Rice Experiment Station (now Chachoengsao Rice  Research.  F2 to F5 progenies were  selected at Klong Luang Rice Reseach Center during 2007-2008.  The line CCS06039-KLG-8-3-5-1 has an erect and moderately strong culm; 110 cm height on transplanting and 105 cm height on germinated seed broadcasting; 117 days maturity on transplanting and 106 days maturity on germinated seed broadcasting. The cooked rice is soft and  aromatic similar to Pathum Thani 1, and  the amylose content is 16.4 percent. The seed size is larger than Pathum Thani 1. The period of seed...
Tipo: PhysicalObject
Palavras-chave: Aromatic rice; Hybrid rice; Non glutinous rice; High yield; Genetic stability; Varieties; Plant breeding; Rice production; Yields; Seeds quality; Cooking quality; Rainfed; ข้าวหอม; สายพันธุ์ลูกผสม; ข้าวเจ้า; ผลผลิตข้าวสูง; การปรับปรุงพันธุ์; ความคงที่ทางพันธุกรรม; ศักยภาพการผลิต; การทดสอบพันธุ์; คุณภาพเมล็ดพันธุ์; คุณภาพหุงต้ม.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5702

Sorghum breeding 1977
Provedor de dados: 106
Autores: Krisda Samphantharak; Dumri Suriyapu; Tisti Puntharo.
7 tables
Palavras-chave: Sorghum; Plant breeding; Random mating; Hybrids; Yield trials; Crossing; Selection; Mould tolerance; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงพันธุ์; ประชากรจากการผสมพันธ์แบบสุ่ม; ข้าวฟ่างลูกผสม; การทดสอบผลผลิต; โรคราบนช่อข้าวฟ่าง.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3920

Pioneers experience in Asia
Provedor de dados: 106
Autores: Mishra, Ken N.
Palavras-chave: Corn; Maize; Plant breeding; Hybrids; Asia; ข้าวโพด; บริษัทไพโอเนียร์ ไฮเบรด; เมล็ดพันธุ์; พันธุ์ลูกผสม.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4074

Prospect and progress of corn improvement in Thailand
Provedor de dados: 106
Autores: Phit Panyalakshana.
Palavras-chave: Corn; Maize; Corn improvement; Plant breeding; Thailand; ข้าวโพด; การปรับปรุงพันธุ์; ประเทศไทย.
Ano: 1964
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3724

Breeding and genetics for the improvement of yield and quality of corn
Provedor de dados: 106
Autores: Weerasak Duangchantra; Prapa Sripichitt; Manop Subsorn; Sansern Jampatong; Patcharee Konghiran; Apichat Vanavijit.
5 ill., 10 tables
Palavras-chave: Corn; Maize; Plant breeding; Genetics; Variety trials; Yields; Quality; ข้าวโพด; การปรับปรุงพันธุ์; หน่วยดำเนินการ; โครงการข้าวโพดลูกผสม.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4085

Corn improvement for drought resistance program
Provedor de dados: 106
Autores: Kitisri Sukhapinda; Somsri Thaiwesna.
2 tables
Palavras-chave: Corn; Maize; Plant breeding; Drought resistance; Variety trials; Yields; ข้าวโพด; การปรับปรุงพันธุ์; พันธุ์ทนแล้ง.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4086

Corn breeding in the Philippines
Provedor de dados: 106
Autores: A.C. Mercado, Jr.; Aquilizan, F.A.; Payson, R.M.; Aday, B.A.
3 tables
Palavras-chave: Corn; Maize; Corn breeding; Philippines; Plant breeding; ข้าวโพด; การปรับปรุงพันธุ์; ฟิลิปปินส์.
Ano: 1964
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3729

Plant breeding group discussion
Provedor de dados: 106
Autores: Singh, Joginder; Moore, C.L.
Palavras-chave: Corn; Maize; Plant breeding; Early maturity; Stalk rot; Breeding systems; ข้าวโพด; พันธุ์เบา; โรคลำต้นเน่า; การปรับปรุงพันธุ์.
Ano: 1972
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3910

Sorghum breeding
Provedor de dados: 106
Autores: Krisda Samphantharak; Sutee Rayakaew; Thamrongsilpa Pothisoong.
8 tables
Palavras-chave: Sorghum; Plant breeding; Shoot fly; Pest  resistance; Population improvement; Progeny testing; Yield trials; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงพันธุ์; พันธุ์ต้านทาน; หนอนแมลงวันเจาะยอดข้าวฟ่าง; การปรับปรุงประชากร; การทดสอบรุ่นลูก; การทดสอบผลผลิต.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3958

ศักยภาพกล้วยไม้สกุลนางอั้วในเชิงการค้า
Provedor de dados: 106
Autores: Phruek Kongsawad; Supas Nusawad; Supapong Sachit; Jongwattana Pumherun.
The ground orchids ‘Pecteilis sp.’ have great potentials for development to commercial scale. This orchid group rest in dry season and flowering in rainy season, less taking care; so, it can be developed to pot plant similar to tulip. This research aims to develop new Thai orchid product for commercial scale by research and development. This work was done at Sisaket Horticulture Research Center during 2006-2011. It was collection of, the orchids ‘Pecteilis sp.’ from natural in north-east Thailand and market, 810 orchid plants included 500 plants of Pecteilis sagarikii and 310 plants of Pecteilis susannae. Moreover, four good parent lines were selected, and a pair of intergeneric hybrid between Pcteilis x Habenaria was bred for commercial scale.
Tipo: PhysicalObject
Palavras-chave: Orchid; Orchidaceae; Pcteilis; Hybridization; Intergeneric; Plant breeding; Selection interspecific; Interspecific hybridization; Intergeneric hybridization; Plant morphology; Production potential; กล้วยไม้ดินสกุลนางอั้ว; พันธุ์การค้า; การรวบรวมพันธุ์; การปรับปรุงพันธุ์; การคัดเลือก; การผสมข้ามสกุล; การผสมข้ามชนิด; ลักษณะทางสัณฐานวิทยา; ศักยภาพการผลิต.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5783

Sorghum breeding
Provedor de dados: 106
Autores: Krisda Samphantharak; Sutee Rayakaew; Thamrongsilpa Pothisoong.
23 tables
Palavras-chave: Sorghum; Plant breeding; Hybrids; Variety trials; Yields; Quality; Agronomic characters; ข้าวฟ่าง; พันธุ์ต้านทานหนอนแมลงวันเจาะยอดข้าวฟ่าง; พันธุ์แนะนำ; พันธุ์ลูกผสม; การทดสอบผลผลิต.
Ano: 1980
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4007

Plant pre-breeding for increased protein content in soybean Glycine max (L.) Merrill
Provedor de dados: 109
Autores: Silva-Rodrigues,Josiane Isabela da; Antunes-Arruda,Klever Márcio; Deniz-Piovesan,Newton; Gonçalves-de Barros,Everaldo.
Abstract The aim of this research were to determine protein content and genetic divergence of soybean genotypes in QTL regions of the trait grain protein content for plant breeding purposes. Twenty-nine soybean genotypes were grown in the field in four environments (Viçosa-MG Dec/2009, Visconde do Rio Branco-MG Feb/2010, São Gotardo-MG Feb/2010, and São Gotardo-MG Oct/2011) using the randomized block design with three replicates. The grain protein content was quantified by the infrared spectrometry method. The genetic divergence was estimated by the analysis of 39 microsatellite markers from QTL regions for the soybean grain protein content. The pairs of genotypes with greater genetic distances and protein contents were as follows: BARC-8/CS3032PTA276-3-4...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Molecular markers; QTL; Soybean genotypes; Protein contein.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000400618

Phenotypic and genotypic characterization and compatibility among genotypes to select elite clones of cupuassu
Provedor de dados: 36
Autores: ALVES,Rafael Moysés; SILVA,Carlos Rogério de Sousa; ALBUQUERQUE,Paulo Sérgio Bevilaqua de; SANTOS,Vinicius Silva dos.
ABSTRACT The expansion of the genetic base of cultivated materials is an ongoing activity of the cupuassu (Theobroma grandiflorum) breeding program. However, the parents involved need to be genotypically and phenotypically characterized to ensure compatibility of crossings, as well as to assist in the selection of more promising individuals for hybridization. This study aimed to identify and select T. grandiflorum clones that are compatible and genetically divergent using tools such as the estimates of genotypic, phenotypic, and combined distances, as well as the compatibility rates among clones. The genetic distance analysis of the clones was performed with 14 heterologous microsatellite primers of cocoa (Theobroma cacao) that amplify the DNA of cupuassu....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microsatellites; Tropical fruit; Diversity; Plant breeding; Theobroma grandiflorum.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000300175

BIOCHEMICAL AND PHYSIOLOGICAL CHARACTERIZATION OF OIL PALM INTERSPECIFIC HYBRIDS (Elaeis oleifera x Elaeis guineensis) GROWN IN HYDROPONICS
Provedor de dados: 37
Autores: RIVERA MÉNDEZ,YURANY DAYANNA; MORENO CHACÓN,ANDRÉS LEONARDO; ROMERO,HERNÁN MAURICIO.
The interspecific hybrid, Elaeis oleifera x Elaeis guineensis (OxG) is an alternative for improving the competitiveness and sustainability of the Latin American oil palm agro-industry, because of its partial resistance to some lethal diseases and also because of the high quality of its oil. A comparative characterization was conducted of the physiological and biochemical performance of seedlings of six OxG hybrids grown in hydroponics. Gas exchange, vegetative growth, protein, sugar and photosynthetic pigment content, and antioxidant system activity were determined. With the exception of gas exchange, the other variables showed significant differences between materials. The ´U1273´ and ´U1737´ materials showed greater vegetative growth with no expression...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adaptation; Growth; Nutrient solution; Plant breeding; Stress.
Ano: 2013
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2013000300005

Early selection in sugarcane family trials via BLUP and BLUPIS procedures - doi: 10.4025/actasciagron.v35i4.16430
Provedor de dados: 1
Autores: Oliveira, Ricardo Augusto de; Universidade Federal do Paraná; Daros, Edelclaiton; Universidade Federal do Paraná; Resende, Marcos Deon Vilela de; Empresa Brasileira de Pesquisa Agropecuária; Bespalhok Filho, João Carlos; Universidade Federal do Paraná; Zambon, José Luis Camargo; Universidade Federal do Paraná; Ruaro, Lucimeris; Universidade Federal do Paraná.
The objective of this study was to compare early selection in sugarcane families through the best linear unbiased prediction (BLUP) and simulated individual best linear unbiased prediction (BLUPIS) procedures. We tested 80 full-sib families in an incomplete block experimental design. Statistical analyses were performed using the mixed model methodology. The following traits were determined from the first rattoon: tons of stalks per hectare (TSH), percentage of soluble solids w/w in the juice (Brix), and tons of brix per hectare (TBH). Variance components were estimated by restricted maximum likelihood (REML), and the genotypic values of the families were predicted by BLUP and BLUPIS. The BLUPIS procedure suggested the selection of 30 families with a total...
Tipo: Pesquisa científica e procedimentos de seleção de plantas
Palavras-chave: 5.01.03.05-9 Saccharum spp.; Plant breeding; Mixed models; Family selection; Full-sib families Melhoramento Vegetal.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16430

Correlações e repetibilidade em progênies de dendê - DOI: 10.4025/actasciagron.v30i2.1728
Provedor de dados: 1
Autores: Ortega Cedillo, Digner Santiago; Instituto Nacional Autonomo de Isvestigações Agropecuarias; Barros, Willian Silva; UFV; Ferreira, Fábio Medeiros; UFAM; Dias, Luiz Antonio dos Santos; UFV; Rocha, Rodrigo Barros; Centro de Pesquisa Agroflorestal de Rondonia; Cruz, Cosme Damião; UFV.
Estimaram-se as correlações fenotípicas, genotípicas e ambientais entre o número de cachos por planta e a produção anual e suas combinações em dendê (Elaeis guineensis). Os coeficientes de repetibilidade e de determinação também foram estimados, com o objetivo de indicar o período mínimo de colheita necessário para se acessar o potencial genotípico das progênies avaliadas. A correlação genotípica entre o número de cachos e a produção foi negativa, indicando que, se forem selecionados os genótipos com maior produção, o número de cachos deverá diminuir. A correlação genotípica geralmente apresentou sinal oposto do que precedia correlação ambiental, evidenciando que as causas genéticas e ambientais influenciam o número de cachos e a produção por meio de...
Palavras-chave: 5.02.01.03-4    Genética e Melhoramento Florestal Elaeis guineensis; Estabilização genotípica; Melhoramento genético vegetal 5.02.01.03-4    Genética e Melhoramento Florestal Elaeis guineensis; Genotype stabilization; Plant breeding.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1728

Glandular trichomes that mediate resistance to green peach aphid in tomato genotypes from the cross between S. galapagense and S. lycopersicum
Provedor de dados: 1
Autores: da Silva, Alex Antonio; de Castro Carvalho, Regis; Carvalho Andrade, Marcela; Zeist, André Ricardo; Vilela Resende, Juliano Tadeu; Maluf, Wilson Roberto.
&amp;nbsp;The aim of this study was to verify the resistance of tomato genotypes (crossed with Solanum galapagense) to the green peach aphid, Myzus persicae, and the association of this resistance with glandular trichomes. Leaf trichomes were quantified for seven F2 genotypes of the BPX-486 population derived from crossing S. lycopersicum ‘TOM-684’ and S. galapagense accession ‘LA-1401’, for the commercial controls ‘TOM-584’ and ‘Santa Clara’, and for the accession ‘LA-1401’. After this evaluation, the genotypes were subjected to two nonpreference resistance tests of the green peach aphid in the laboratory, one with choice and the other without choice. Five genotypes (BPX-486-17, BPX-486-62, BPX-486-10, BPX-486-46, and BPX-486-08) and the accession LA-1401...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Insect pests; Leaf trichomes; Indirect selection plant breeding; Insect pests; Leaf trichomes; Indirect selection.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42704

Diversidade genética de populações naturais de Pfaffia glomerata (Spreng.) Pedersen estimada por marcadores RAPD - DOI: 10.4025/actasciagron.v31i3.548
Provedor de dados: 1
Autores: Kamada, Takeshi; FESURV; Picoli, Edgard Augusto de Toledo; UFV; Alfenas, Acelino Couto; UFV; Cruz, Cosme Damião; UFV; Vieira, Roberto Fontes; EMBRAPA; Otoni, Wagner Campos; UFV.
Pfaffia glomerata é uma espécie nativa da América do Sul e de ocorrência natural em alguns Estados do Brasil. Porém, as populações naturais de fáfia têm sido ameaçadas em decorrência do intenso extrativismo, em virtude de suas propriedades terapêuticas de interesse. No presente estudo, objetivou-se estimar a diversidade genética de quatro populações naturais oriundas da bacia do Rio Paraná. Os indivíduos foram multiplicados in vitro e caracterizados de acordo com o padrão eletroforético de marcadores RAPD, utilizando-se 268 marcas polimórficas obtidas a partir de 67 primers. As estimativas de distância genética foram obtidas pelo complemento aritmético do coeficiente de Nei e Li, e os genótipos agrupados de acordo com o método UPGMA. Três populações...
Palavras-chave: 5.01.00.00-9    Agronomia ‘ginseng brasileiro’; Conservação de germoplasma; Melhoramento vegetal 5.01.03.05-9 brazilian-ginseng; Germplasm conservation; Plant breeding.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/548

Adaptive leaf anatomical characteristics of Brachiaria ruziziensis genotypes (Poaceae) in different environments - doi: 10.4025/actascibiolsci.v35i4.18265
Provedor de dados: 3
Autores: Santos, Fabíola Carvalho; Universidade Federal de Lavras; Techio, Vânia Helena; Universidade Federal de Lavras; Freitas, Aline Silva; Universidade Federal de Lavras; Castro, Evaristo Mauro de; Universidade Federal de Lavras; Davide, Lisete Chamma; Universidade Federal de Lavras; Sobrinho, Fausto Souza; Empresa Brasileira de Pesquisa Agropecuária.
Studies on morphological plasticity are extremely important to plant breeding seeking to optimize genotype interactions with their environments. The present study evaluated 38 genotypes of Brachiaria ruziziensis cultivated during the rainy (October to March) and dry (April to September) seasons and examined variations in their anatomical characteristics. Fully expanded leaves were collected and fixed in FAA70 (formaldehyde: acetic acid: ethyl alcohol) for 72h and subsequently stored in 70% alcohol. Median sections of leaf blades were examined and evaluated according to traditional plant anatomical procedures. Genotypes 15, 27, 40, 53, and 90 demonstrated interactions with the environment in five of the anatomical characteristics evaluated; genotypes 1 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7 morphological plasticity; Plant anatomy; Plant breeding; Forage Anatomia vegetal.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18265

Genetic variability and diversity of mutant rice revealed by quantitative traits and molecular markers
Provedor de dados: 115
Autores: Oladosu,Yusuff; Rafii,Mohd Y.; Abdullah,Norhani; Malek,Mohammad Abdul; Rahim,Harun A.; Hussin,Ghazali; Ismail,Mohd Razi; Latif,Mohammad Abdul; Kareem,Isiaka.
Genetic variability with mutagenic agents has been employed in plant breeding due to its significant contribution to the improvement of the existing rice genotypes by using genetically diverse parents. This study evaluated the genetic variability and diversity of mutant rice using quantitative traits and inter-simple sequence repeats (ISSR) molecular markers. A field experiment was carried out on M5 generation of 31 developed mutant lines and their parent (control). Morphological traits and 25 ISSR molecular markers were used as tools for determining cultivar identities and genetic diversity. The selected primers generated 443 clear polymorphic bands with an average number of 18 per primer. The bands were 85.10 % polymorphic. Un-weighted Pair Group of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Genetic diversity; Molecular marker; Mutagenicity; Polymerase chain reaction (PCR).
Ano: 2015
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952015000300002

Agronomic performance and genetic divergence between genotypes of Manihot esculenta
Provedor de dados: 42
Autores: GILES,JOÃO ANTONIO D.; OLIOSI,GLEISON; RODRIGUES,WEVERTON P.; BRAUN,HEDER; RIBEIRO-BARROS,ANA I.; PARTELLI,FÁBIO L.
Abstract The morphoagronomic characterization of 12 genotypes of M. esculenta was performed during the 2013/2014 and 2014/2015 crop years. The 12 genotypes were planted in a randomized block design, with four replicates per genotype. Number of tuberous roots per plant, weight of tuberous roots, root yield, total plant weight, harvest index, plant height, height of first branch, number of shoots, stem diameter, number of buds, leaf dry weight and petiole length were evaluated. Genotypes “Camuquem” and “Goiás” were the most productive, and “Amarela” and “Gema de Ovo” were the most divergent. Seventy percent of genetic diversity was due to petiole length (22.86%), root yield (19.20%), weight of tuberous roots (14.89%) and number of buds (13.72%). Overall, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cassava; Plant breeding; Dissimilarity; Multivariate analysis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703639

Phenotypic variance of black oat growing in crop seasons reveals genetic effects predominance
Provedor de dados: 42
Autores: MEIRA,DANIELA; MEIER,CARINE; OLIVOTO,TIAGO; NARDINO,MAICON; RIGATTI,ALEXSANDER; KLEIN,LUÍS ANTÔNIO; CARON,BRAULIO O.; MARCHIORO,VOLMIR S.; SOUZA,VELCI Q. DE.
Abstract: This work aimed to determine variance components and genetic parameters, as well as phenotypic, genetic and environmental correlations among black oat (Avena strigosa) families grown in different crop season. Seventy-six black oat families and three controls (BRS Madrugada, BRS Centauro, BRS 139 Neblina) were evaluated in two crop seasons (2016 and 2017), using families with intercalary controls experimental design. The results reveled high potential of black oat families to compose a breeding program, due to families and controls variance were similar, variance components expressed greater genetic variance origin for crop season. Panicle weight and panicle grain weight presented high heritability and, these are correlated with panicle length....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena strigosa; Genetic correlation; Genetic parameters; Plant breeding.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500864

Genetic diversity of promising ‘conilon’ coffee clones based on morpho-agronomic variables
Provedor de dados: 42
Autores: GILES,JOÃO ANTONIO D.; PARTELLI,FÁBIO L.; FERREIRA,ADÉSIO; RODRIGUES,JOICE P.; OLIOSI,GLEISON; SILVA,FERNANDO H. LIMA E.
Abstract Knowledge of the genetic variability of a population is essential to guide its preservation and maintenance in addition to increasing the efficiency of genetic breeding programs. On this basis, this study was conducted to evaluate the genetic diversity of Coffea canephora genotypes using multivariate statistical procedures applied to a set of morpho-agronomic variables. The materials employed in this study constitute a crop located in Vila Valério - ES, Brazil, where the genotypes are arranged in a randomized-blocks experimental design with four replicates. Significant differences were detected by the F test at the 1% or 5% probability levels among the genotypes for all evaluated traits, demonstrating heterogeneity of genetic constitution in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea canephora; Dissimilarity; Multivariate analysis; Plant breeding.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502437

Plant genomics: an overview
Provedor de dados: 48
Autores: CAMPOS-DE QUIROZ,HUGO.
Recent technological advancements have substantially expanded our ability to analyze and understand plant genomes and to reduce the gap existing between genotype and phenotype. The fast evolving field of genomics allows scientists to analyze thousand of genes in parallel, to understand the genetic architecture of plant genomes and also to isolate the genes responsible for mutations. Furthermore, whole genomes can now be sequenced. This review addresses these issues and also discusses ways to extract biological meaning from DNA data. Although genomic issuesare addressed from a plant perspective, this review provides insights into the genomic analyses of other organisms
Tipo: Journal article
Palavras-chave: Genomics; Plant breeding; Gene discovery.
Ano: 2002
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000300013

Application of artificial neural networks in indirect selection: a case study on the breeding of lettuce
Provedor de dados: 53
Autores: Azevedo,Alcinei Mistico; Andrade Júnior,Valter Carvalho de; Pedrosa,Carlos Enrrik; Oliveira,Celso Mattes de; Dornas,Marcus Flavius Silva; Cruz,Cosme Damião; Valadares,Nermy Ribeiro.
The efficiency of artificial neural networks (ANN) to model complex problems may enable the prediction of characteristics that are hard to measure, providing better results than the traditional indirect selection. Thus, this study aimed to investigate the potential of using artificial neural networks (ANN) for indirect selection against early flowering in lettuce, identify the influence of genotype by environment interaction in this strategy and compare your results with the traditional indirect selection. The number of days to anthesis were used as the desired output and the information of six characteristics (fresh weight of shoots, mass of marketable fresh matter of shoots, commercial dry matter of shoots, average diameter of the head, head...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Multi-layer-perceptron; Gain selection; Plant breeding; Computational intelligence.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400387

Viability of pollen grains of tetraploid banana
Provedor de dados: 53
Autores: Soares,Taliane Leila; Souza,Everton Hilo de; Costa,Maria Angélica Pereira de Carvalho; Silva,Sebastião de Oliveira e; Santos-Serejo,Janay Almeida dos.
ABSTRACT Obtaining banana tetraploid cultivars from triploid strains results in total or partial reestablishment of fertility, allowing the occurrence of some fruits with seeds, a feature that is undesirable from a marketing perspective. The objective of this study was to assess the viability of pollen of 12 banana tetraploid hybrids (AAAB) by means of in vitro germination and two histochemical tests (acetocarmine and 2,3,5-triphenyltetrazolium chloride). The pollen tube growth was evaluated by germinating grains in three culture media — M1: 0.03% Ca(NO3)∙4H2O, 0.02% Mg(SO4)∙7H2O, 0.01% KNO3, 0.01% H3BO3 and 15% sucrose; M2: 0.03% Ca(NO3)∙4H2O, 0.01% KNO3, 0.01% H3BO3 and 10% sucrose; and M3: 0.015% H3BO3, 0.045% Ca3(PO4)2 and 25% sucrose. The acetocarmine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa L.; In vitro pollen germination; Histochemical analysis; Plant breeding.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200145

Popcorn germplasm resistance to fungal diseases caused by Exserohilum turcicum and Bipolaris maydis
Provedor de dados: 53
Autores: Kurosawa,Railan do Nascimento Ferreira; Vivas,Marcelo; Amaral,Antonio Teixeira do; Ribeiro,Rodrigo Moreira; Miranda,Samila Barbosa; Pena,Guilherme Ferreira; Leite,Jhean Torres; Mora,Freddy.
ABSTRACT Compared with the common corn, popcorn shows greater susceptibility to pests and diseases occurrence, being the use of resistant cultivars the most efficient strategy. In this regard, Germplasm Banks deserve special attention because they contain accessions that can be used as sources of resistance in breeding programs. The State University of Northern Rio de Janeiro (UENF) maintains a popcorn Germplasm Bank with accessions from tropical and temperate countries, including Diversity Centers for the species. In this study, we investigated the performance of 37 popcorn accessions landraces, hybrids, and inbreed lines ― from the Germplasm Collection of UENF’s Popcorn Breeding Program with respect to the fungal leaf diseases northern leaf blight (NLB)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Northern leaf blight; Genetic resistance; Plant breeding.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100036

Drought stress mitigation with humic acid in two Cucumis melo L. genotypes differ in their drought tolerance
Provedor de dados: 53
Autores: Kıran,Servinç; Furtana,Gökçen Baysal; Talhouni,Manar; Ellialtıoğlu,Şeküre Şebnem.
ABSTRACT Different responses of two melon (Cucumis melo L.) genotypes (Şemame, drought and salt-tolerant and Ananas, drought and salt-sensitive) to drought stress with or without humic acid (HA) treatment were studied. The experiment was carried out under greenhouse conditions. The experimental design was two factorial randomized block with 4 replicates. HA treatment increased the shoot fresh and dry weights and leaf area of both genotypes under drought stress. HA stimulated accumulation of K and Ca ions, chlorophyll (SPAD value) and antioxidant enzyme activity (superoxide dismutase-SOD, catalase-CAT and glutathione reductase-GR) in both genotypes. This effect was more clear in the Şemame genotype than in Ananas.As a result, HA treatment has been proved to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Melon; Drought; Plant breeding; Lipid peroxidation; Antioxidant enzymes.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000400490

Selection of new clones of linalool chemotype from genetic recombination in Lippia alba
Provedor de dados: 53
Autores: Rufino,Elcio Rodrigo; Siqueira,Walter José; Marques,Márcia Ortiz Maio; Colombo,Carlos Augusto; Azevedo Filho,Joaquim Adelino; Martins,Antônio Lúcio Melo.
The aromatic and medicinal species Lippia alba is vigorous and rugged native to the South America (Atlantic Rainforest). Because it is an allogamous and self-incompatible species, natural populations have high morphological and chemical variability. This work had as objective to conduct a preliminary screening to identify new promising clones from a novel (recombinant) base population of Lippia alba with regard to its agronomic and phytochemical traits, using the linalool oil or chemotype as model. The two superior linalool clones, obtained by collection, were used as controls. Traits evaluated included: dry mass of leaves (DML), oil yield percentage (EOY%), oil production per plant (OP), and linalool percentage (LN%). Forty linalool chemotype clones were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Verbenaceae; Oil linalool; Genetic divergence; Clone selection; Plant breeding.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052012000200002

Characterization of tomato generations according to a three-way data analysis
Provedor de dados: 53
Autores: Medico,Ana Paula Del; Cabodevila,Victoria Guadalupe; Vitelleschi,Maria Susana; Pratta,Guillermo Raúl.
ABSTRACT Availability of a three-way data analysis to characterize two consecutive tomato (Solanum lycopersicum) generations is necessary to continue a plant breeding program with less uncertainty. The aim of this work was to analyze tomato fruit quality from F2 and F3 populations by two three-way data analysis: multiple factorial analysis (MFA) and generalized procrustes analysis (GPA). These techniques have the same main objective, searching for a common structure, but they achieve it in different ways. This work evaluated 18 tomato genotypes, represented by individual plants in F2 and selfed families in F3. The same quantitative traits related to fruit quality were measured in both generations. The first two axes of the MFA represented 51.0% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Three-way data analysis; Multiple factorial analysis; Generalized procrustes analysis; Plant breeding; Plant genetic resources.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100008

Early selection of elite plants in Asparagus
Provedor de dados: 53
Autores: COINTRY,ENRIQUE LUIS; LÓPEZ ANIDO,FERNANDO SEBASTIÁN; GATTI,ILEANA; CRAVERO,VANINA PAMELA; FIRPO,INÉS TERESA; GARCÍA,STELLA MARIS.
In order to establish an efficient selection criterion the variability in three asparagus populations was evaluated defining the most important yield components and analysing its evolution along three growing seasons. The yield components, coefficient of variation (CV) and the proportion of plants contributing to 80% of the total yield were estimated. The elite plants were selected by mean of total yield and clusters techniques. Multiple regression showed that spear number (SN) and spear weight (SW) were the most important yield components. In every population, total yield (TY) and SN showed the highest values of CV, independently of sex. 69% of the plants contributed to the 80% of the total yield in the first year while in the second and third year the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asparagus; Variability; Elite plants; Selection; Plant breeding.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052000000100005

Diallel analysis of the combining ability of common bean (Phaseolus vulgaris L.) cultivars
Provedor de dados: 52
Autores: Barelli,Marco Antônio Aparecido; Gonçalves-Vidigal,Maria Celeste; Amaral Júnior,Antonio Teixeira do; Vidigal Filho,Pedro Soares; Scapim,Carlos Alberto.
Six common bean cultivars (LPSPI 93-17, LPSPI 93-19, FT-Nobre, Aporé, Rudá and Campeão-1) and their 15 diallel hybrids were evaluated for four agronomic characteristics using Griffing's methodology (1956). The analysis indicated the predominance of non-additive gene effects for days to germination and plant height. The mean number of days to flowering and mean height of the first pod insertion were predominantly controlled by genes showing additive effects. The results showed that LPSI 93-19 and Aporé were indicated for intra-population breeding, while the combinations LPSPI 93-17 x FT-Nobre, LPSPI 93-17 x Aporé, LPSPI 93-17 x Rudá, LPSPI 93-19 x Campeão-1, FT-Nobre x Aporé and Rudá x Campeão-1 were indicated for interpopulational breeding. Plants with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Common bean; Phaseolus vulgaris; Diallel analysis; Plant breeding.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000400009

Plant breeding in the turn of the millennium
Provedor de dados: 52
Autores: Borém,Aluízio; Milach,Sandra Cristina Kothe.
The transition from hunting and gathering to farming happened about 10,000 years ago, independently and diffusely in several places in the world. Plant breeders were responsible for genetic progress in a number of crop species. It included hybrids, the introgression of wild species genes and also the Green Revolution, which started in the 1960's with the cereals. The varieties developed by breeding, along with the use of new crop technology (fertilization, soil tillage, etc.) changed the status of some countries from importers to exporters of food. In the turn of the millennium,, plant breeding, faces new challenges in a globalized world, but it has new tools to deal with them. Notwithstanding the present contributions of plant breeding and crop...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Perspectives; Interespecific biotechnological vulnerability; Genetic gridlock; 21st Century; Partnerships.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000300001

Screening of melon populations for resistance to Didymella bryoniae in greenhouse and plastic tunnel conditions
Provedor de dados: 52
Autores: Tsutsumi,Cláudio Yuji; Silva,Norberto da.
Studies were carried out to evaluate melon populations for resistance to Gummy Stem Blight, caused by Didymella bryoniae for use in breeding programs under greenhouse and plastic tunnel conditions. Were evaluated reactions of half-sib populations of PI 140471 and Anô nº 2 had as with susceptible check Eldorado 300. Plants were inoculated 45 days for needle prickling followed by application of 0.05 ml of 5.0 x 10(5) spores/ml suspension in axis of third and fourth true leaves.Resistance evaluation was made after 90 days of age using a scale varying one to five. PI 140471 and Anô nº 2 progenies were found superior and differed significantly with the checker Eldorado 300 for the F Test. Anô nº 2 possessing multiple resistance to diseases and desirable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo; Gummy stem blight; Plant breeding; Disease resistance.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000200002

Barley Types and Varieties in Spain: Un panorama histórico
Provedor de dados: 118
Autores: Martínez-Moreno,Fernando; Igartua,Ernesto; Solís,Ignacio.
Barley is currently the most cultivated crop in Spain, with an acreage of about three million ha. Its importance stems from its adaptation to areas with poor soil conditions and water stress. The aim of this work is to describe the historical evolution of barley types and varieties of barley grown by farmers in Spain. A historical review was performed by consulting articles and books on the history, archaeology, and agronomy related to the issue. Different web sites and articles about the current varietal state of barley in Spain were also consulted. Another important information source was the CRF (Centro de Recursos Fitogenéticos, Spanish Center of Plant Genetic Resources) of Spain, where a large collection of landraces is preserved. The first barleys...
Tipo: Journal article
Palavras-chave: Barley; Landraces; Plant genetic resources; Varieties; Plant breeding; Cebada; Mejora vegetal; Recursos fitogenéticos; Variedades; Variedades locales.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000100002

Selection of sugarcane families and clones under cold stress
Provedor de dados: 65
Autores: Verissimo,Mario Alvaro Aloisio; Azeredo,Amaro Afonso Campos de; Silva,Sergio Delmar dos Anjos e; Brasileiro,Bruno Portela; Bespalhok Filho,João Carlos; Daros,Edelclaiton; Oliveira,Ricardo Augusto de.
ABSTRACT:  The purpose of this study was to select cold-tolerant sugarcane families and clones. Evaluations were carried out during three selection phases in the municipality of Pelotas, state of Rio Grande do Sul, Brazil. The experiments were arranged in an incomplete block design, with initially 4,452 seedlings of 53 full-sib families. Aside from the traits soluble solids content (BRX), tons of stalks per hectare (TSH) and tons of brixper hectare (TBH), the survival of the apical bud (ABS) was evaluated in the first selection stage (T1) of the breeding program. At the end of three selection phases, 15 clones of 14 of the 53 families evaluated in the first phase (T1) were selected for the experimental phase. Of these, the clones RS/PR126066, RS/PR126044,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp.; Abiotic stress; Plant breeding; Frost.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100152

Stability in chromosome number and DNA content in synthetic tetraploids of  Lolium multiflorum after two generations of selection
Provedor de dados: 65
Autores: Pereira,Roselaine Cristina; Santos,Natália de Souza; Bustamante,Fernanda de Oliveira; Mittelmann,Andrea; Techio,Vânia Helena.
ABSTRACT: Chromosome doubling of Italian ryegrass genotypes ( Lolium multiflorum Lam.) adapted to the brazilian edaphoclimatic conditions is an important strategy used by breeders and aims to obtain more vigorous genotypes with better forage quality and disease resistance. The effectiveness of chromosome doubling can be measured by genetic stability and fertility rates of plants over generations. However, a common problem in the polyploidization process is the regeneration of mixoploid plants that have impaired fertility and genetic stability. The objective of this study was to verify if progenies of recently tetraploidized plants remain stable regarding DNA content and chromosome number, over two generations. Progenies of L. multiflorum plants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosomal duplication; Mixoploidy; Italian ryegrass; Plant breeding.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200401

Genetic variability of Passiflora spp. from commercial fields in the Federal District, Brazil
Provedor de dados: 65
Autores: Castro,Ana Paula Gomes de; Faleiro,Fábio Gelape; Carvalho,Daniel Diego Costa; Fonseca,Kenia Gracielle da; Vilela,Marina de Fátima; Junqueira,Nilton Tadeu Vilela; Cares,Juvenil Enrique.
This study aimed to characterize the genetic variability in commercial accessions of passion fruit from the Federal District, Brazil, by RAPD markers. Genetic analyses were done with leaf samples of 30 accessions. DNA samples were amplified by RAPD technique, and respective markers converted into a binary matrix, from which the genetic distances between the accessions were estimated. Clustering analyis based on genetic distances allowed to detect a wide range of genetic variabillity among the accessions of sour passion fruit, and to separate them from the two sweet passion fruit. The graphical positioning of 'BRS Ouro Vermelho' confirms its potential to improve the genetic variability of commercial varieties of sour passion fruit. Dispersal of genetic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Passion fruit; Plant breeding; RAPD analysis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000600013

Forage characters of different Paspalum species in Rio Grande do Sul: a meta-analysis
Provedor de dados: 65
Autores: Graminho,Larissa Arnhold; Dall’Agnol,Miguel; Pötter,Luciana; Lopes,Rodrigo Ramos; Simioni,Carine; Weiler,Roberto Luís.
ABSTRACT: The objective of this study was to evaluate, through meta-analysis, the forage characteristics of various species of the genus Paspalum and to use them to select the best ecotypes that can be used in artificial hybridization as parents and hybrids for pasture production and natural pasture recovery systems. Data were obtained from studies conducted by the Department of Forage Plants and Agrometeorology of the Universidade Federal do Rio Grande do Sul. Database comprised tests conducted with ecotypes and/or hybrids of Paspalum spp. in plots for evaluating total dry mass production, leaf dry mass production, and stem dry mass production by means of cuts. Total dry mass production, which included leaves and stems, differed between the ecotypes and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Hybridization; Plant breeding; Natural pasture; Variability.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700651

Estimates of genetic parameters for physic nut traits based in the germplasm two years evaluation
Provedor de dados: 65
Autores: Laviola,Bruno Galvêas; Alves,Alexandre Alonso; Gurgel,Fábio de Lima; Rosado,Tatiana Barbosa; Rocha,Rodrigo Barros; Albrecht,Julio Cesar.
In spite of increasingly widespread interest in planting physic nut, breeding efforts are still in its infancy. In that context, an important resource recently established aiming future breeding efforts was the assembly of a germplasm bank with near 200 accessions. The objective of this study was to estimate genetic parameters, repeatibility coefficients and genetic correlation between seven traits, measured in 110 accessions (half sib families) of this germplasm bank in different stages of development. The results show that higher relative values of additive variance were only found for yield and height, and the existence of low environmental variation (either of temporary or permanent nature) among plots within blocks. Given the high repeatibility values...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas; Plant breeding; Quantitative genetic.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000300008

Genetic parameters of resistance to Meloidogyne incognita in melon
Provedor de dados: 65
Autores: Candido,Willame dos Santos; Castoldi,Renata; Santos,Lucas da Silva; Tobar-Tosse,Dora Enith; Soares,Pedro Luiz Martins; Braz,Leila Trevisan.
ABSTRACT: In order to assess the genetic control of resistance in the melon ‘Gaúcho Redondo’ to the root-knot nematode Meloidogyne incognita, an experiment was conducted in a randomized complete block design with three blocks and six treatments using the parental lines ‘Gaúcho Redondo’ (P1 resistant) and JAB 20 (P2 susceptible), as well as F1, F2, and backcross generations (RC1P1 and RC1P2). Seventy days after inoculation, individual plants were evaluated for resistance using the nematode reproduction factor (RF). The hypothesis of monogenic inheritance was rejected by the chi-square test (χ2), and results indicated that resistance is controlled by more than one gene locus, as confirmed by the quantitative analysis that revealed the presence of six genes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo; Genetic inheritance; Plant breeding; Reproduction factor.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500201

Popcorn genotypes resistance to fall armyworm
Provedor de dados: 65
Autores: Oliveira,Nádia Cristina de; Suzukawa,Andréia Kazumi; Pereira,Carolina Bertuzzi; Santos,Hayssa Vilela; Hanel,Aldo; Albuquerque,Fernando Alves de; Scapim,Carlos Alberto.
ABSTRACT: The aim of this study was to evaluate popcorn genotypes for resistance to the fall armyworm, Spodoptera frugiperda. The experiment used a completely randomized design with 30 replicates. The popcorn genotypes Aelton, Arzm 05 083, Beija-Flor, Colombiana, Composto Chico, Composto Gaúcha, Márcia, Mateus, Ufvm Barão Viçosa, Vanin, and Viviane were evaluated,along with the common maize variety Zapalote Chico. Newly hatched fall armyworm larvae were individually assessed with regard to biological development and consumption of food. The data were subjected to multivariate analyses of variance and genetic divergence among genotypes was evaluated through the clustering methods of Tocher based on generalized Mahalanobis distances and canonical variable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiosis; Nutrition index; Plant breeding; Spodoptera frugiperda.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200154

Estimate of genetic parameters and predicted gains with early selection of physic nut families
Provedor de dados: 64
Autores: Laviola,Bruno Galvêas; Alves,Alexandre Alonso; Gurgel,Fábio de Lima; Rosado,Tatiana Barbosa; Costa,Rhayanne Dias; Rocha,Rodrigo Barros.
An initial evaluation of early selection of physic nut genotypes based on phenotypic data is presented. In order to predict the genetic gains with early selection, genetic parameters, e.g. additive genetic variance, were first obtained for grain yield along with other numerous traits. The results demonstrated that additive genetic variance exists not only for grain yield, which is considered to be the most important trait for oil and biodiesel production, but also for numerous other traits. The predicted genetic gains for grain yield, considering the selection of the 30, 20, 10 and 5 best families in the second crop year are respectively, 40.47, 48.43, 61.78 and 70.28%. With the selection of highly yielding physic nut genotypes indirectly genotypes with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas L.; Reproductive; Vegetative traits; Plant breeding.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000200004

Selection in several environments by BLP as an alternative to pooled anova in crop breeding
Provedor de dados: 64
Autores: Bueno Filho,Júlio Sílvio de Sousa; Vencovsky,Roland.
Plant breeders often carry out genetic trials in balanced designs. That is not always the case with animal genetic trials. In plant breeding is usual to select progenies tested in several environments by pooled analysis of variance (ANOVA). This procedure is based on the global averages for each family, although genetic values of progenies are better viewed as random effects. Thus, the appropriate form of analysis is more likely to follow the mixed models approach to progeny tests, which became a common practice in animal breeding. Best Linear Unbiased Prediction (BLUP) is not a "method" but a feature of mixed model estimators (predictors) of random effects and may be derived in so many ways that it has the potential of unifying the statistical theory of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BLP; Plant breeding; Statistical genetics.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000500021

Genetic divergence in pepper genotypes from southwest Goiás
Provedor de dados: 64
Autores: Alvares,Renata Cristina; Reis,Edésio Fialho dos; Pinto,Jefferson Fernando Naves.
Knowledge on the genetic diversity in genebanks is important for germplasm conservation and use in breeding programs, where it can reduce time and costs of breeding of new genotypes. The purpose of this study was to evaluate the genetic divergence among 137 genotypes of Capsicum chinense Jacq. by morphological descriptors and multivariate techniques, with a view to the identification of groups for promising crosses for breeding programs. The experiment was conducted in a greenhouse, arranged in a randomized complete block design with four replications, where each plot consisted of a pot with one plant. The 20 descriptors recommended by the International Plant Genetic Resources Institute - IPGRI were considered for the morphological characterization. By...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum chinense Jacq.; Morphological evaluation; Multivariate techniques; Plant breeding.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000500002

Carioca bean genotypes for tolerance to grain darkening by natural and accelerated methods
Provedor de dados: 64
Autores: Spitti,Acácia Mecejana Diniz Souza; Carbonell,Sérgio Augusto Morais; Dias,Carlos Tadeu dos Santos; Sabino,Luis Gustavo; Carvalho,Cássia Regina Limonta; Chiorato,Alisson Fernando.
ABSTRACT The slow darkening of grains is sought by bean breeders because the consumers consider that darker grains demand more time for cooking. The analysis currently used takes around 90 days to differentiate grain color among genotypes. The objective was to evaluate the color as a function of the value of L* (lightness) of carioca beans, by natural and accelerated methods to verify equivalence between methods, validation of the methodology and identification of genotypes tolerant to the darkening. The grain darkening was compared and evaluated by natural darkening method under shelf conditions, in days storage, and accelerated darkening method under ultraviolet light, in hours. The natural darkening time of 90 days was statistically equal to 24 hours of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L.; Coloring; Lightness; Plant breeding; Ultraviolet light.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100224

Performance of the double-cross tomato hybrids from a partial diallel
Provedor de dados: 64
Autores: Matos,Rafael de; Resende,Juliano Tadeu Vilela de; Zeist,André Ricardo; Corte,Lígia Erpen-Dalla; Da-Silva,Paulo Roberto; Zeffa,Douglas Mariani.
ABSTRACT Knowledge of the combining ability of genotypes, genetic diversity, and heterosis play the paramount role in obtaining double-cross hybrids with high productivity. This study was aimed at evaluating these parameters in tomato genotypes using partial diallel crosses among the commercial single-cross hybrids, which verified the possibility of using double-cross hybrids for commercial purposes. Tomato genotypes included 15 double-cross hybrids, their genitors, and two commercial genotypes as checks. Of the fifteen double-cross hybrids of tomato, two crosses exhibited superiority, such as Aguamiel × Compack and Dominador × Compack, mainly for the total and commercial fruit yields. The phenotypic expression of the trait is controlled by the genes with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; ISSR; Molecular markers; Plant breeding; Heterosis.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542021000100205

Early selection of full-sib potato families
Provedor de dados: 64
Autores: Melo,Dheyne Silva; Pinto,César Augusto Brasil Pereira; Peixouto,Leandro Santos; Neder,Diogo Gonçalves; Assis,Josiane Cristina de.
Clonal selection is the preferred breeding method used in potatoes (Solanum tuberosum L.). However this selection procedure is only efficient for more advanced generations and shows no good results when applied in the seedling up to the second clonal generation. This study assessed the feasibility of selection in early generations of full-sib potato families and compares the selection method among and within families with the combined selection under different selection intensities. Six experiments were conducted from the first (C1) until the third clonal generation (C3). In C1 a randomized complete block design with four replications of 25 plants was used. In the remaining generations RCB was employed with three replications of 10 plants. Genetic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Plant breeding; Clonal generations.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600009

Genetic progress in popcorn recurrent selection by a multivariate mixed-model approach
Provedor de dados: 64
Autores: Ematné,Hugo Junqueira; Nunes,José Airton Rodrigues; Souza,João Cândido de; Muñoz,Patrício Ricardo.
ABSTRACT Recurrent selection is a viable alternative for popcorn breeding. However, frequent verification of progress attained is required. The aim of this study was to estimate the genetic progress attained for popping expansion (PE) and grain yield (GY) after four cycles of recurrent selection and to compare this progress with the expected progress estimated at the end of each cycle while considering the genetic relationships between the progenies via univariate and multivariate mixed-model approaches. To estimate the genetic parameters and gains from indirect selection, cycles 1, 2, 3, and 4 of a UFLA population were used. To estimate the genetic gains achieved, the following cycles were used: UFLA (original) and cycles 0, 1, 2, 3, and 4, evaluated in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Grain yield; Popping expansion.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000200159

Evaluation of soybean breeding lineages to new sources of root-knot nematode resistance
Provedor de dados: 64
Autores: Hamawaki,Osvaldo Toshiyuki; Hamawaki,Raphael Lemes; Nogueira,Ana Paula Oliveira; Glasenapp,Jacqueline Siqueira; Hamawaki,Cristiane Divina Lemes; Silva,Carolina Oliveira da.
ABSTRACT In Brazil, as the soybean crop expands the losses caused by nematodes as well as its incidence in producing areas have increased. Therefore, this work aimed to develop a non-genetically modified soybean which combines desirable traits as the root-knot nematode resistance, early-maturity, high seed yielding, and high oil and protein contents. Consequently, seeds (F2) derived from the double-crossing between (Guarani x Sambaiba) x (M Soy 6101 x Conquista) were bulked to grow the F3 generation. Following generations were advanced by the SSD method of breeding until F6. Thus, plants showing superior characteristics were planted separately to perform progeny tests and then advanced breeding lines were thoroughly tested and compared to standards in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant breeding; Disease resistance; Glycine Max; Pratylenchus brachyurus.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100222