SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

LEDO, F.J. da S.; CASALI, V.W.D.; CRUZ, C.D.; LEDO, C.A. da S..

Este trabalho teve por objetivo estimar parâmetros genéticos em um dialelo de alface, segundo o método de Jinks & Hayman. O experimento foi conduzido em casa de vegetação, na Universidade Federal de Viçosa, no período de 20/10 a 12/12/96. O delineamento experimental adotado foi o de blocos casualizados, com três repetições. Utilizaram-se vasos com 4,5 dm3 de substrato e uma planta por vaso (parcela). Foram avaliadas seis cultivares de alface (Vitória de Verão, Nativa, Regina de Verão, Maravilha de Verão, Grand Rapids e Mimosa) e seus respectivos híbridos F1. Avaliaram-se os seguintes caracteres: matéria fresca da parte aérea (MFPA); matéria seca da parte aérea (MSPA), folhas (MSF) e raiz (MSR); número de folhas/planta (NUF); e comprimento do caule...

Avaliacao genetica da massa foliar e sobrevivencia de progenies de erva-mate em duas classes de solos na regiao de Ponta Grossa, PR.

Palavras-chave: Lactuca sativa; Caracteristicas agronomicas; Controle genetico; Parametros geneticos; Metodos de melhoramento; Agronomic characters; Genetic control; Genetic parameters; Breeding methods.

Ano: 2001

URL: http://www.alice.cnptia.embrapa.br/handle/doc/103740

Biotechnology and crop protection in Brazil.

STURION, J.A.; RESENDE, M.D.V.; FASOLO, P.J..

2000

Tipo: Artigo em anais de congresso (ALICE)

Palavras-chave: Erva-mate; Ilex paraguariensis; Controle genetico; Genetica; Recurso genetico; Progenie; Genetic control; Genetics; Genetic resources; Progeny; Yerba mate.

Ano: 2000

URL: http://www.alice.cnptia.embrapa.br/handle/doc/301995

Capacidade embriogênica de cultivar IAS-5 de soja.

CAMPANHOLA, C.; RODRIGUES, G. S.; BETTIOL, W..

bitstream/item/180097/1/Companhola-Biotechnology-3564.pdf

Tipo: Artigo em anais de congresso (ALICE)

Palavras-chave: Productivity; Pesticide; Insect pest; Plant pathogen; Genetic control; Soybean; Tomato; Rubber tree; Coconut; Apple; Strawberry; Cana-de-açúcar; Agrotóxico; Alfafa; Agricultura; Arroz; Banana; Coco; Controle Biológico; Controle Genético; Erva Daninha; Fumo; Maçã; Morango; Praga de Planta; Produtividade; Seringueira; Soja; Alfalfa; Agriculture; Biological control; Rice; Sugarcane; Tobacco; Weed control.

Ano: 1998

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/13013

DI MAURO, A.O.; OLIVEIRA, R.C. de; OLIVEIRA, J.A. de.

O objetivo deste trabalho foi estudar o controle genético da formação de embriões somáticos da cultivar IAS-5 de soja. O experimento foi conduzido em casa de vegetação, cultivando-se quatro plantas por vaso, sob fotoperíodo de 14 horas e temperatura em torno de 28°C. Efetuaram-se cruzamentos entre os parentais não-embriogênicos (cultivares IAC-6, Paraná e IAC-15) e embriogênico (cultivar IAS-5) e retrocruzamentos para obtenção das gerações F1, F2, RC1P1 e RC1P2. Cotilédones imaturos, com 4-6 mm de comprimento, derivados dos parentais das gerações F1, F2, RC1P1 e RC1P2 foram cultivados em placas de Petri contendo meio N10, por um período de 90 dias, em câmara de crescimento. Os embriões somáticos derivados da indução foram contados, e os números, usados...

Controle de doenças do maracujazeiro: situação atual e perspectivas.

Palavras-chave: Glycine max; Embrião somático; Hibridação; Herança genética; Controle genético; Somatic embryos; Hybridization; Genetic inheritance; Genetic control.

Ano: 2001

URL: http://www.alice.cnptia.embrapa.br/handle/doc/105857

PERUCH, L. A. M.; COLARICCIO, A.; BATISTA, D. da C..

O controle fitossanitário das doenças pode ser considerado um fator decisivo na produção do maracujazeiro. O método químico, associado ao cultural e ao genético, consiste na melhor estratégia para reduzir as perdas provocadas pelas doenças fúngicas, bacterianas e viróticas desta frutífera. No caso do controle químico existem vários fungicidas protetores e sistêmicos disponíveis, com destaque para aqueles formulados com triazóis e estrobilurinas. O controle cultural pode contribuir para a aplicação de fertilização equilibrada, a destruição de restos culturais, a adoção de quebra-ventos, entre outras. Numa perspectiva futura será fundamental a disponibilidade de cultivares resistentes adaptadas às diferentes regiões do Brasil.

Determining the inheritance of agronomic traits in chili pepper

Palavras-chave: Fungicidas; Genetic control; Maracujá; Doença; Controle Cultural; Controle Genético; Passiflora; Fungicides; Cultural control; Passion fruits.

Ano: 2018

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1089156

Horticultura Brasileira

Bento,Cíntia S; Rodrigues,Rosana; Sudré,Cláudia P; Medeiros,Artur M; Mathias,Vinícius AS; Gonçalves,Leandro SA.

ABSTRACT The Capsicum genus is widely studied in many countries but most of research focuses on C. annuum. Although its importance as potential genetic resource for breeding to disease resistance and fruit quality, studies on genetics and breeding in C. baccatum var. pendulum are still scarce and it still remains as an underexploited crop. This paper aimed to study the inheritance of agronomic characteristics, to estimate the genetic parameters for seven agronomic traits in C. baccatum var. pendulum, using generation mean analysis and to verify the existence of major genes and polygenes with additive and non-additive effects, using the method of maximum likelihood with the aid of Monogen software. The agronomic traits evaluated were: number of fruits per...

Estudo de heranca do carater "folhas multilobadas" em melancia.

Palavras-chave: Capsicum baccatum var. pendulum; Genetic control; Heritability; Major gene; Additive-dominant model; Segregating generation..

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000300367

SOUZA, F. de F.; QUEIROZ, M. A. de.

bitstream/item/182361/1/Genetics-and-Molecular-Biology-v.22-n.3-p.485-1999.pdf

Tipo: Resumo em anais de congresso (ALICE)

Palavras-chave: Genetic inheritance; Genetic control; Citrullus Lanatus; Controle Genético; Folha; Hereditariedade; Melancia; Leaves.

Ano: 1999

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/133478

Genetic control of disease resistance in corn

Thai Agricultural

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

Genetic control of leaf curl in maize.

ENTRINGER, G. C.; GUEDES, F. L.; OLIVEIRA, A. A.; NASCIMENTO, J. P.; SOUZA, J. C..

Abstract: Among the many implications of climatic change on agriculture, drought is expected to continue to have a major impact on agribusinesses. Leaf curling is an anatomical characteristic that might be potentially used to enhance plant tolerance to water deficit. Hence, we aimed to study the genetic control of leaf curl in maize. From 2 contrasting inbred lines for the trait, generations F1 , F2 , and the backcrosses were obtained. All of these generations were evaluated in a randomized block design with 2 replicates. Leaf curl samples were collected from 3 leaves above the first ear at the tasseling stage, and quantified by dividing the width of the leaf blade with natural curling against its extended width. The mean and variance components were...

Genetic control of the angular leaf spot reaction in common bean leaves and pods

Palavras-chave: Genetic components; Herdabilidade; Milho; Área foliar; Controle genético; Genética vegetal; Melhoramento genético vegetal; Resistência à seca; Zea mays; Heritability; Maize; Leaf area; Genetic control; Genetic improvement; Plant genetic resources; Plant genetics; Drought tolerance.

Ano: 2014

URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1001514

Scientia Agricola

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...

Genetic mapping provides evidence for the role of additive and non-additive QTLs in the response of inter-specific hybrids of Eucalyptus to Puccinia psidii rust infection.

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

ALVES, A. A.; ROSADO, C. C. G.; FARIA, D. A.; GUIMARÃES, L. M. da S.; LAU, D.; BROMMONSCHENKEL, S. H.; GRATTAPAGLIA, D.; ALFENAS, A. C..

2012

Genetica da resistencia a ferrugem-da-folha em aveia.

Palavras-chave: Eucalyptus; Puccinia rust resistance; Genetic control; Epistatic QTL mapping.

Ano: 2012

URL: http://www.alice.cnptia.embrapa.br/handle/doc/949715

CRUZ, R.P. da; FEDERIZZI, L.C.; MILACH, S.C.K..

A ferrugem-da-folha (Puccinia coronata f. sp. avenae) é a principal doença da cultura da aveia (Avena sativa L.), e o uso de cultivares resistentes é o método de controle mais importante. Este trabalho teve por objetivo determinar o controle genético da resistência à ferrugem-da-folha em aveia e identificar fontes de genes diferentes para resistência a esta doença. Foram utilizados três genótipos resistentes (UFRGS 15, UFRGS 881920 e UFRGS 86A1194-2), três genótipos suscetíveis (UFRGS 7, UFRGS 8 e UFRGS 14) e a geração segregante F3 proveniente dos cruzamentos entre estes genótipos. As plantas foram avaliadas individualmente quanto à presença ou ausênciada ferrugem-da-folha, sendo os dados destas leituras utilizados numa análise genética em que a hipótese...

Genetical and environmental analyses of yield in six biparental soybean crosses.

Palavras-chave: Avena sativa; Resistencia a doencas; Puccinia coronata; Doencas das plantas; Controle genetico; Disease resistances; Plant diseases; Genetic control.

Ano: 2001

URL: http://www.alice.cnptia.embrapa.br/handle/doc/104007

TOLEDO, J.F.F. de; ARIAS, C.A.A.; OLIVEIRA, M.F. de; TRILLER, C.; MIRANDA, Z. de F.S..

O progresso genético obtido para produtividade em soja é mundialmente considerado razoável. Entretanto, acredita-se que esse progresso possa ser significativamente aumentado se forem usadas técnicas refinadas de melhoramento, desenvolvidas a partir do melhor conhecimento do controle genético e do ambiente sobre a produtividade. Foram analisados, neste trabalho, os dados referentes a quatro linhagens ou cultivares e as populações descendentes F2, F3, F7, F8, F9 e F10, obtidos em ensaios realizados em 17 ambientes, para permitir uma avaliação dos efeitos genéticos controladores da produtividade na soja. Os efeitos genéticos aditivos predominaram, e foram detectados níveis significativos de dominância, em várias oportunidades. Também foram freqüentemente...

Genetical and environmental analyses of yield in six biparental soybean crosses

Palavras-chave: Soja; Controle genetico; Soybeans; Genetic control.

Ano: 2000

URL: http://www.alice.cnptia.embrapa.br/handle/doc/103178

PAB

TOLEDO,JOSÉ FRANCISCO FERRAZ DE; ARIAS,CARLOS ALBERTO ARRABAL; OLIVEIRA,MARCELO FERNANDES DE; TRILLER,CLÁUDIA; MIRANDA,ZILDA DE FÁTIMA SGOBERO.

The yearly genetic progress obtained by breeding for increased soybean yield has been considered acceptable worldwide. It is common sense, however, that this progress can be improved further if refined breeding techniques, developed from the knowledge of the genetic mechanisms controlling soybean yield, are used. In this paper, data from four cultivars and/or lines and their derived sets of F2, F3, F7, F8, F9 and F10 generations assayed in 17 environments were analyzed to allow an insight of the genetic control of soybean yield under different environmental conditions. The general picture was of a complex polygene system controlling yield in soybeans. Additive genetic effects predominated although dominance was often found to be significant. Complications...

Genetics of resistance to powdery mildew (Microsphaera diffusa) in Brazilian soybean populations

Palavras-chave: Glycine max; Genetic control; Selection; Polygenes; Genotype environment interaction; Breeding methods.

Ano: 2000

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000900011

Genet. Mol. Biol.

Gonçalves,Elaine Cristine Piffer; Di Mauro,Antonio Orlando; Centurion,Maria Aparecida Pessôa da Cruz.

Crosses between resistant and susceptible soybean cultivars were performed and the F2 populations were obtained to study the inheritance of soybean resistance to powdery mildew and to estimate the number and action of genes related to resistance. The reaction to powdery mildew was studied in a greenhouse and pots carrying plants with symptoms were distributed among the pots carrying the genotypes to be tested as a source of inoculum. Individual plants were scored according to the method of Yorinori (1997), with modifications, and classified as resistant or susceptible. The results showed that adult soybeans plants can present resistance to powdery mildew, which is controlled by one major gene with a dominant effect.

Identification of Pm24, Pm35 and Pm37 in thirteen Egyptian bread wheat cultivars using SSR markers

Palavras-chave: Powdery mildew; Glycine max; Genetic control.

Ano: 2002

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000300015

Ciência e Agrotecnologia

Emara,Hassan Mahmoud; Omar,Ayman Feisal; El-Shamy,Moustafa Mahmoud; Mohamed,Mona Elsaid.

ABSTRACT Powdery mildew of wheat (Triticum spp.) caused by Blumeria graminis f.sp. tritici (DC) E.O. Speer Em. Marchal is one of the most important bread wheat diseases in Egypt. All the Egyptian common bread wheat cultivars are susceptible to that disease at seedling and adult stages. Breeding of resistant cultivars is the most economical and environmentally safe method to eliminate the disease and reduce crop losses. Combinations of two or more effective resistance genes may lead to better, more durable resistance to that disease. Eight Pm genes i.e. Pm2, Pm6, Pm12, Pm16, Pm24, Pm35, Pm36 and Pm37 out of 21 powdery mildew monogenic wheat lines (Pm) were resistant to 42 individual isolates of powdery mildew collected from different governorates in the...

Inheritance of nitrogen use efficiency in inbred progenies of tropical maize based on multivariate diallel analysis.

Palavras-chave: Powdery mildew; Genetic control; DNA; Molecular markers.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000300279

GUEDES, F. L.; DINIZ, R. P.; BALESTRE, M.; RIBEIRO, C. B.; CAMARGOS, R. B.; SOUZA, J. C..

Abstract: The objective of our study was to characterize and determine the patterns of genetic control in relation to tolerance and efficiency of nitrogen use by means of a complete diallel cross involving contrasting inbred progenies of tropical maize based on a univariate approach within the perspective of a multivariate mixed model. Eleven progenies, previously classified regarding the tolerance and responsiveness to nitrogen, were crossed in a complete diallel cross. Fifty-five hybrids were obtained. The hybrids and the progenies were evaluated at two different nitrogen levels, in two locations. The grain yield was measured as well as its yield components. The heritability values between the higher and lower nitrogen input environment did not differ...

Mixed inheritance in the genetic control of ramulosis (Colletotrichum gossypii var. cephalosporioides) resistance in cotton.

Palavras-chave: Herdabilidade; Analise multivariada; Melhoramento genético vegetal; Milho; Nitrogênio; Método estatístico; Plant breeding; Genetic control; Heritability; Nitrogen; Diallel analysis; Maize; Zea mays; Multivariate analysis.

Ano: 2014

URL: http://www.alice.cnptia.embrapa.br/handle/doc/1006787

OLIVEIRA, M. A. C.; DUARTE, J. B.; MORELLO, C. de L.; SUASSUNA, N. D.; OLIVEIRA, A. B..

Ramulosis is one of the most aggressive diseases in cotton, and understanding the genetic control of its resistance is imperative for selecting superior cotton genotypes in breeding programs. This study analyzed the inheritance pattern of this resistance using chi-square goodness-of-fit tests to determine the phenotypic proportions of the F2 generation, and a mixed inheritance approach to jointly model major gene and polygenes effects. F1, F2, Rc1, and Rc2 generations were obtained by crossing resistant (BRS Facual, CNPA 2984, or CNPA 2043) and susceptible (Delta Opal, CNPA 999, or CNPA 2161) genotypes, and were assessed under field conditions with artificial inoculation of the pathogen (Colletotrichum gossypii var. cephalosporioides). Genetic control of...

Proporção de sexo e produtividade de massa foliar em erva-mate (Ilex paraguariensis St. Hil).

Palavras-chave: Controle genético; Colletotrichum gossypii; Gossypium hirsutum; Cotton; Genetic control.

Ano: 2016

URL: http://www.alice.cnptia.embrapa.br/handle/doc/1065802

STURION, J. A.; RESENDE, M. D. V. de; MENDES, S..

A proporção de árvores masculinas e femininas e a produtividade de massa foliar associada ao sexo foram examinadas em um teste de procedência e progênie de erva-mate (//ex paraguariensis St. Hil.), implantado no Município de Colombo, PR. A proporção de oito árvores masculinas para cinco femininas, obtida aos cinco anos de idade, é válida para as procedências oriundas das regiões de Cascavel, Toledo e Campo Mourão, localizadas no Estado do Paraná. As árvores femininas produziram, em média, aos cinco anos e oito meses de idade, 15,1% a mais de massa foliar que as masculinas.

Reaction of melon accessions to crater rot and resistance inheritance

Palavras-chave: Biologia; Reproducao; Controle genetico; Reproductive biology; Genetic control.

Ano: 1995

URL: http://www.alice.cnptia.embrapa.br/handle/doc/289713

Horticultura Brasileira

Nascimento,Ítala JB; Nunes,Glauber HS; Sales Júnior,Rui; Silva,Katchen JP; Guimarães,Izabel M; Michereff,Sami J.

The aims of the present study were to assess the reaction of melon accessions to crater rot, caused by Myrothecium roridum, and study the inheritance of resistance. In the first experiment, 30 melon accessions from northeastern Brazil were assessed in a randomized block design with two replicates. Each plot was formed by a row of 12 plants, from which three fruits were sampled and used for inoculation. Each fruit was inoculated at four equidistant sites on the surface. Ten wounds were made at each site to an approximate depth of 3.0 mm, to which 0.05 mL of conidial suspension was placed at a concentration of 10(6) spores mL-1 of sterilized distilled water with the aid of a pipette. The fruits were placed on Petri dishes and enveloped in polyethylene bags...