Diallel Analysis
Mostrando 13-24 de 86 artigos, teses e dissertações.
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13. Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes
ABSTRACT Cotton provides about 90% of the world textile fiber, and is one of the crops of greater industrial relevance. The objectives of this study were to estimate the inbreeding depressionand the genetic effects involved in the control of the agronomic andfiber quality traits in F1 and F2 generations and to identify promising hybrids for obtaining superio
Bragantia. Publicado em: 18/10/2018
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14. Inheritance of harvest index in common bean
Abstract The aim of this study was to verify if the harvest index (HI) of common bean is higher in modern lines, to verify if its estimate varies with the cycle of the plant and environmental conditions, and to obtain information concerning its genetic control (through diallel crossing). For this purpose, six lines were crossed in a diallel. Evaluations were
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-09
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15. Combining ability as a strategy for selecting common bean parents and populations resistant to white mold
Abstract Common bean parents and populations resistant to white mold (WM, caused by Sclerotinia sclerotiorum) were selected based on estimates of general combining ability (GCA) and specific combining ability (SCA) for WM severity in three field nurseries in Brazil. Twenty-seven populations were obtained by partial diallel crosses between parents from two gr
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-09
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16. Diallel analysis and genetic differentiation of tropical and temperate maize inbred lines
Abstract This study aimed to evaluate hybrids obtained by the cross among temperate × tropical elite maize lines, and to determine the genetic diversity and population differentiation of these inbred lines. Forty-nine hybrids were evaluated for seed yield, plant and ear heights, and for severity of Phaeosphaeria maydis and Exserohilum turcicum in four envir
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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17. Diallel analysis in cotton (Gossypium hirsutum L.) for water stress tolerance
Abstract Information about combining ability is important in determining breeding strategies. The objective of this study was to estimate the general (GCA) and specific (SCA) combining abilities among twenty cotton hybrid combinations submitted to water stress, based on agronomic traits. The trails were carried out in semiarid environment (Barbalha, CE), dur
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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18. Diallel analysis in agronomic traits of Jatropha
Abstract The objectives of this study were to estimate the general and specific combining ability of the parents, and to verify the existence of maternal effect and inbreeding depression in Jatropha. The experiment was carried out from 2010 to 2015, in the municipality of Planaltina, Distrito Federal. The following traits were evaluated: plant height, stem d
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-09
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19. Diallel analysis in cowpea aiming at selection for extra-earliness
Abstract In Brazil, the production of cowpea is concentrated in the Northeast and North; however, in recent years, its cultivation has expanded to the Cerrado biome of the Brazilian Midwest region, where it is incorporated into production arrangements in the form of off-season. In this work, it was carried out a study on the extra-earliness in cowpea in orde
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-09
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20. Efeito do gene CP4 EPSPS na produtividade de óleo em populações de soja / Effect of CP4 EPSPS gene on the oil yield of soybean populations
During the past few years, with the increase of the biodiesel international price and rising demand, there has been a larger interest in increasing the oil content of soybean cultivars. It is known that the high oil production is a function of yield. However, there are many factors that prevent cultivars from expressing their full yield potential, for exampl
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/08/2011
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21. Analise dialética e heterose de populações de milho-pipoca.
A diallel set of crosses among nine popcorn (Zea mays) cultivars, UNB-2, RS-20, UEM-J1, UEM-M2, CMS 42, CMS 43, Vicosa, Beija-flor and advanced generation of hybrid three-way Zelia, and their hybrid combinations was carried out to obtain heritability and heterosis estimates. The cultivars and F1s were evaluated in two crop years (1998/99 and 1999/2000) with
Bragantia. Publicado em: 2011
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22. Heterosis in crosses among white grain maize populations with high quality protein.
The objective of this work was to investigate heterosis and its components in 16 white grain maize populations presenting high quality protein. These populations were divided according to grain type in order to establish different heterosis groups. The crosses were carried out according to a partial diallel cross design among flint and dent populations. Seve
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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23. Heterosis in crosses among white grain maize populations with high quality protein.
The objective of this work was to investigate heterosis and its components in 16 white grain maize populations presenting high quality protein. These populations were divided according to grain type in order to establish different heterosis groups. The crosses were carried out according to a partial diallel cross design among flint and dent populations. Seve
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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24. Diallel analysis for grain yield and mineral absorption rate os soybeans grown in acid brazilian Savannah soil.
High available aluminium and low levels of calcium below the ploughed zone of the soil are limiting factors for agricultural sustainability in the Brazilian Cerrados (Savannahs). The mineral stresses compound with dry spells effect by preventing deep root growth of cultivated plants and causes yield instability. The mode of inheritance for grain yield and mi
Pesquisa Agropecuaria Brasileira. Publicado em: 2011