Diallel Cross
Mostrando 1-12 de 57 artigos, teses e dissertações.
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1. Diallel analysis of popcorn populations for yield, popping expansion and resistance to fall armyworm
ABSTRACT The objective of this study was to estimate the varietal and heterotic effects related to grain yield, popping expansion and resistance of popcorn against fall armyworm. Twelve open-pollinated varieties were intercrossed in a complete diallel mating scheme. The 66 experimental hybrids, together with their parents and controls Zapalote Chico, BRS 103
Rev. Ceres. Publicado em: 2020-08
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2. Combining Ability for Resistance to White Mold in a Diallel Cross of Soybean
Abstract The white mold, caused by Sclerotinia sclerotiorum (Lib.) de Bary, is one of the most important diseases of soybean. The objective of the present work was to evaluate the soybean reaction to the fungus S. sclerotiorum, which causes white mold, in a partial diallel with 50 crosses. The Group I of parents was composed of ten experimental lines with hi
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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3. Selection of parents for low nitrogen stress through the combining ability of maize partially inbred lines
ABSTRACT. The objective of this work was to estimate the general combining ability of partially inbred lines under high and low nitrogen (N) conditions and to select promising lines to obtain high yields for both conditions. Fifty-five partially inbred S1 progenies were evaluated using the top-cross method, where the lines were crossed with two testers. The
Acta Sci., Agron.. Publicado em: 23/09/2019
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4. Diallel analysis and heterosis components in paprika peppers
RESUMO O objetivo deste estudo foi quantificar e avaliar os componentes da heterose em híbridos de páprica para produtividade, teor de capsanteno (graus ASTA) e resistência a Phytophthora capsici, e identificar as linhagens parentais elevada capacidade geral de combinação (CGC) para serem utilizados em futuros programas de melhoramento e/ou para obter n
Rev. Ciênc. Agron.. Publicado em: 2019-06
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5. Selection of maize top-crosses for different nitrogen levels through specific combining ability
ABSTRACT An alternative to increase yield without raising the production costs and minimizing the dependence of agricultural inputs is the development of maize genotypes presenting high nitrogen (N) use efficiency under low N level conditions. Thus, the objective of this study was to estimate the specific combining ability of maize top-crosses under high and
Bragantia. Publicado em: 04/04/2019
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6. The combining ability of popcorn S7 lines for Puccinia polysora resistance purposes
ABSTRACT The present study resulted from the lack of information on the genotypic expression ruling the resistance to rust and on the main traits of economic importance to the herein addressed crop. The combining ability of 16 popcorn lines and hybrids was assessed in partial diallel cross in two representative locations in Rio de Janeiro State, Brazil, wher
Bragantia. Publicado em: 18/10/2018
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7. Potential of soybean crosses in early inbreeding generations for grain yield
Abstract The present study aimed to evaluate the combining ability of 16 soybean genotypes using a partial diallel. Two experiments were carried out to estimate the general (GCA) and specific (SCA) combining ability, one with 64 crosses and the other with 16 parents. At the R8 stage, F2 plants and the parents were evaluated for the following traits: number o
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-09
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8. 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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9. Combining ability of potato parents for tuber appearance and tuber yield component traits
Abstract The purpose of this study was to estimate the combining ability between two groups of potato parents in early generations of selection. Twelve potato families, derived from two groups of parents crossed in a 4x3 partial diallel design, were evaluated, in a randomized complete block design with three replications. Additive effects of genes were predo
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-06
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10. Genetic effects and potential parents in cowpea
ABSTRACT Six cowpea genotypes and their F2 hybrid combinations were evaluated for general and specific combining ability. The Griffing's diallel cross design, Method 2, and mixed model B were used. The genotypes and hybrids differed statistically (p <0.01) for the 10 studied traits. With regard to the general and specific combining ability, there were statis
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-12
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11. 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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12. Diallel among soybean genotypes with high oil content and resistance to sudden death syndrome
The objective of this work was to use a partial diallel to evaluate the combining ability of 14 soybean genotypes and recommend superior combinations. Seven of the genotypes had high oil yield; other seven exhibited tolerance to sudden death syndrome and they generated 49 hybrids in a diallel cross without reciprocals. F2plants of each cross and the parents
Braz. arch. biol. technol.. Publicado em: 2014-04