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1981 Progress report on sorghum breeding Thai Agricultural
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
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A cultura da soja no sul do Maranhão. Infoteca-e
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
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A multivariate approach to explore the genetic variability in the F2 segregating population of a tomato second cycle hybrid JBAG
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
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A study of cold tolerance in rice (Oryza sativa L.) International Rice Research Institute
Amirkolaei, Sayyed Kamal Kazemitabar.
x, 328 leaves : ill. Thesis (Ph.D.) -- University of Liverpool
Tipo: Thesis Palavras-chave: Rice; Tissue culture; Cold tolerance; Plant breeding.
Ano: 1997 URL: http://hdl.handle.net/123456789/589
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Access Issues for Plant Breeders in an Increasingly Privatized World AgEcon
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
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Acylsugars in tomato leaflets confer resistance to the South American tomato pinworm, Tuta absoluta Meyr Scientia Agricola
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
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Adaptability and stability of flood-irrigated rice cultivars released to the subtropical region of Brazil PAB
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
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Adaptive leaf anatomical characteristics of Brachiaria ruziziensis genotypes (Poaceae) in different environments - doi: 10.4025/actascibiolsci.v35i4.18265 Biological Sciences
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
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Adoption of Maize Production Technologies in the Coastal Lowlands of Kenya AgEcon
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
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Advances in hybrid rice technology: proceedings of the 3rd International Symposium on Hybrid Rice, 14-16 November 1996, Hyderabad, India. International Rice Research Institute
International Symposium on Hybrid Rice (3rd : 1996 : Hyderabad, India).; International Rice Research Institute..
x, 443 p. : ill.
Tipo: Book Palavras-chave: Hybrid rice; Plant breeding; Breeding methods.
Ano: 1998 URL: http://hdl.handle.net/10269/276
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Agronomic characterization of high-yielding irrigated barley accessions in the Cerrado PAB
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
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Agronomic performance and genetic divergence between genotypes of Manihot esculenta Anais da ABC (AABC)
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
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Among and within family selection and combined half-sib family selection in Panicum maximum Jacq. R. Bras. Zootec.
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
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Anais... Infoteca-e
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
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Análise da variabilidade genética em Triticum tauschii utilizando marcadores microsatélites. Infoteca-e
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
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Análise de mistura genética em campos de multiplicação de sementes de soja com base em marcadores moleculares. Infoteca-e
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
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Análise econômica para a pecuária de corte em pastagens melhoradas no Acre. Infoteca-e
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
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Análise morfoagronômica e bioquímica de um painel de sorgo energia para características relacionadas à qualidade da biomassa. Infoteca-e
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
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Análisis bayesiano de modelos lineales - bilineales. Colegio de Postgraduados
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
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Analysis of experiments in square lattice with emphasis on variance components. i. Individual analysis PAB
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
Registros recuperados: 418
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