Genotype X Environments Interaction
Mostrando 13-24 de 39 artigos, teses e dissertações.
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13. Environmental stratification in cotton in the presence or absence of genotypes with high ecovalence
Abstract Cottonseed yield data of 17 genotypes, of which two genotypes contributed to more than 30% of the total ecovalence, and grown in 23 locations, were used to compare four methods of disjoint environmental stratification: a) environmental index (Ie): favorable or unfavorable environments; b) stratification in partitions that maximize the sum of squares
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-03
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14. Factor analysis applied to the G+GE matrix via REML/BLUP for multi-environment data
Abstract The genotype x environment interaction is frequently observed in many crops and studies on environmental stratification and genotype adaptability have been proposed to understand it. The aim of this study was to carry out factor analysis in data from multi-environment experiments by the mixed model approach (REML/BLUP). Instead of adjusted phenotypi
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-03
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15. Epistasia para a produção de grãos e caracteres da planta em milho / Epistasis for yield and plant traits in maize
It is known that epistasis may have important effects in the populations dynamics and in the evolutionary process of the species, and that it is involved in manifestation of important biological phenomena, such as overdominance, inbreeding depression and heterosis. However, epistasis is considered one of the more complex aspects of quantitative genetics sinc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2011
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16. ASSOCIAÇÃO ENTRE MÉTODOS DE ADAPTABILIDADE E DE ESTABILIDADE EM FEIJÃO / ASSOCIATION BETWEEN ADAPTABILITY AND ESTABILITY METHODS IN COMMON BEAN
The study of adaptability and yield stability allows to identify cultivars adapted to specific conditions and wide, stable and with high grain yield, and can be realized as the different methodologies employed. Thus, the aim of this study was to investigate the association between adaptability and stability methods for grain yield in common bean cultivars an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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17. Multivariate analyses of genotype x environment interaction of popcorn.
The objectives of this work were to evaluate the genotype x environment (GxE) interaction for popcorn and to compare two multivariate analyses methods. Nine popcorn cultivars were sown on four dates one month apart during each of the agricultural years 1998/1999 and 1999/2000. The experiments were carried out using randomized block designs, with four replica
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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18. Cooking time of black beans genotypes evaluated in different environments.
Lines developed by breeding programs are expected to have improved agronomical characteristics, good culinary quality such as environment affected cooking time. Since the final quality tests of black bean lines from the Rice and Beans Research Center breeding program are carried out in a great number of environments. it is possible to determine the cooking t
Annual Report of the Bean Improvement Cooperative. Publicado em: 2011
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19. Study of the interaction genotypes x environments in the selection process of upland rice.
The objectives of this study were the investigation of the interactions between upland rice lines/cultivars x planting system, years and locations. The experiments were conducted in the agricultural years of 2001/02 and 2002/03 in Lavras, Uberlandia and Patrocinio in the state of Minas Gerais (MG), Brazil, in two planting systems: conventional and no-tillage
Crop Breeding and Applied Biotechnology. Publicado em: 2011
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20. Adaptabilidade e estabilidade de genótipos de feijoeiro-comum com grãos tipo carioca na Região Central do Brasil.
O objetivo deste trabalho foi identificar genótipos de feijoeiro-comum (Phaseolus vulgaris) tipo carioca, com alta adaptabilidade e estabilidade de produção, na Região Central do Brasil, pelo uso de diferentes métodos. Foram conduzidos 45 ensaios de valor de cultivo e uso, com 16 genótipos, em blocos completos ao acaso, com três repetições, nos esta
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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21. Comparação de métodos de análise de adaptabilidade e estabilidade fenotípica em feijoeiro-comum.
O objetivo deste trabalho foi comparar métodos de estudo de adaptabilidade e estabilidade fenotípica de feijoeiro-comum (Phaseolus vulgaris). Foram utilizadas avaliações de produtividade em 71 ensaios, com 16 genótipos em cada um. A adaptabilidade e a estabilidade dos genótipos foi avaliada por meio de seis métodos, e a associação entre os méto
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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22. Adaptabilidade e estabilidade de variedades de cana-de-açúcar em Alagoas e Pernambuco
The objective of this study was to assess the magnitude of the interaction between genotypes of cane sugar and environments and the adaptability and stability to the character of total sugar recovered (TSR) using the methodology proposed by Wricke (1965), Eberhart and Russell (1966), Cruz, Torres and Vencovsky (1989) and Annic-chiarico (1992). It was evaluat
Publicado em: 2010
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23. Adaptabilidade e estabilidade fenotÃpica de cultivares de feijÃo de corda / ADAPTABILITY AND PHENOTIPIC STABILITY IN CULTIVARS OF COWPEA
O feijÃo-de-corda (Vigna unguiculata (L.) Walp.), Ã uma espÃcie cultivada de grande importÃncia para a alimentaÃÃo das populaÃÃes rurais e urbanas das regiÃes tropicais e subtropicais do mundo. A produtividade dessa espÃcie varia muito, em virtude, principalmente, das variaÃÃes climÃticas e da utilizaÃÃo de materiais genÃticos pouco produtivo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2009
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24. Efeito da competição dentro de parcelas, da interação genótipos x ambientes e influência de estratégias de seleção no melhoramento genético de eucalipto / Effect of competition within plots, of the genotype x environment interaction and influence of selection strategies in genetic breeding of Eucalypt
The aim was to determine the genetic parameters of progeny tests in Eucalyptus grandis Hill Maiden with 3 years old under competicional effect, as well as to study the genotype x environment interaction and its impact on strategies for direct and indirect selection and analyze different selection strategies like selection among and within, mass, stratified m
Publicado em: 2009