Diallel Cross
Mostrando 13-24 de 57 artigos, teses e dissertações.
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13. Variabilidade e divergência genética em cruzamentos dialélicos de soja / Variability and genetic divergence in soybean diallel crosses
Estimates of genetic divergence (DG) have not been used for parental selection in breeding programs, because of the inconsistence of the results. The objective of this study was to evaluate the possibility of predicting the genetic variability (VG) of soybean populations derived from two-way crosses, using DG data from AFLP markers (Bonato et al., 2006), and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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14. 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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15. Potencial de produção de silagem de híbridos de soja [Glycine max (L.) Merrill] obtidos por cruzamentos em dialelo / Silage production potential of soybean [Glycine max (L.) Merrill] hybrids from a diallel cross
Avaliou-se o potencial de produção de forragem e silagem de cinco cultivares de soja (Sambaíba, Luziânia, Tucunaré, UFV 16 e UFVS 2003) e suas 20 progênies F3 (10 híbridos e 10 híbridos recíprocos), obtidos do cruzamento em dialelo. O delineamento experimental foi em blocos casualizados com três repetições. A soja foi ensilada no estádio R6, por
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/03/2011
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16. Combining ability of summer-squash lines with different degrees of parthenocarpy and PRSV-W resistance
The aim was to assess heterosis in a set of 16 summer-squash hybrids, and evaluate the combining capacity of the respective parental lines, which differed as to the degree of parthenocarpy and resistance to PRSV-W (Papaya Ringspot Virus-Watermelon strain). The hybrids were obtained using a partial diallel cross design (4 x 4). The lines of parental group I w
Genetics and Molecular Biology. Publicado em: 26/08/2011
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17. Genética molecular de caracteres cuantitativos en cruzamientos dialélicos de tomate
The purpose of this research was to evaluate molecular markers and some quantitative fruit traits, in a complete diallel cross without reciprocals, among five tomato recombinant inbred lines and their hybrids. Amplified fragment length polymorphism (AFLP) and pericarp polypeptide profiles were obtained in four stages of fruit maturity of 15 genotypes. Among
Pesquisa Agropecuária Brasileira. Publicado em: 2011-05
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18. 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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19. 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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20. 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
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21. Analise da capacidade combinatoria entre linhagens de girassol.
A capacidade geral (CGC) e a capacidade especifica de combinacao (CEC), entre duas linhagens macho-estereis (mae) e um grupo de sete linhagens S4 restauradoras de fertilidade (pai), foram estimadas para estudar o potencial desses materiais em programas de melhoramento de girassol (Helianthus annuus L.). O metodo iV de Griffing, adaptado para cruzamentos dial
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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22. Proposta para ampliação da base genética por meio de cruzamento interespecífico no pré-melhoramento do tomateiro / Proposal for amplification the genetic base for interespecific cross in tomato pre-breeding.
The aim of this study was to evaluate: 1 - the variability among families resistant PepYMV from the crossing between S.lycopersicum and S.habrochaites; 2 - the contribution of variability in this cross for the breeding of tomato. The diversity assessment was performed with a square lattice design experiment with two replications and three plants per plot. Th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2010
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23. Incomplete Steiner Triple Systems over balanced square lattices to diallel analysis / Sistemas triplos de Steiner incompletos versus Látices Quadrados Balanceados para a análise dialélica
The aim of this work was to compare a fraction of a 15 treatments Steiner Triple Systems (STS) to a 4x4 balanced square lattice design (LQB). We simulate experiments with 15 or 16 treatments. To the former, 5 superblocks of the STS was augmented of 1 treatment each. To the LQB one treatment was repeated if only 15 was in the experiment. To simulate treatment
Publicado em: 2009
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24. Developmental genetic analysis of fruit shape traits under different environmental conditions in sponge gourd (Luffa cylindrical (L) Roem. Violales, Cucurbitaceae)
Analysis of genetic main effects and genotype × environment (GE) interaction effects for the fruit shape traits fruit length and fruit circumference in the sponge gourd (Luffa cylindrical (L) Roem. Violales, Cucurbitaceae) was conducted for diallel cross data from two planting seasons. A genetic model including fruit direct effects and maternal effects and
Genetics and Molecular Biology. Publicado em: 2008