Capacidade combinatória e efeito recíproco em características agronômicas do feijão

Baldissera, Joana Neres da Cruz; Valentini, Giseli; Coan, Marlon Mathias Dacal; Almeida, Carmelice Boff de; Guidolin, Altamir Frederico

doi:10.5433/1679-0359.2012v33n2p471

Cited by 18 publications

(15 citation statements)

References 8 publications

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“…The obtained emergence results also agree with what was reported by Baldissera et al (2012), who, in a study on combinatorial ability and reciprocal effect on the agronomic characteristics of beans, concluded that reciprocal effect evaluations confirm the existence of differences when a plant is used as a male or female genitor, since there is the presence of cytoplasmic effect and nuclear genes of the female genitor in the evaluated characters. According to Gomes et al (2000), the correct choice of maternal and paternal parents is important for the formation of hybrid maize seeds with high germination power.…”

Section: Resultssupporting

confidence: 90%

Genetic divergence between passion fruit hybrids and reciprocals based on seedling emergence and vigor

Rosado

Cremasco

et al. 2017

J. Seed Sci.

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-Characteristics related to seed quality have been rarely used in studies on the genetic diversity of passion fruit. The purpose of this study was to evaluate the genetic diversity between progenies constituted by hybrids and reciprocals, based on seed emergence and vigor traits. On the 28th day, emergence percentage, emergence speed index, shoot length, root length and total length of seedling; dry weight, number of normal seedlings and 100-seed weight were evaluated in a completely randomized design experiment with 20 progenies (hybrids and reciprocals) and four replications (50 seeds). Genetic diversity was determined using the Tocher optimization clustering methods and the unweighted pair group method, based on the Mahalanobis distance, as well as evaluating the relative contribution of the traits to genetic divergence and the correlation network, according to the relations between groups of quality, length and mass variables. The most contributing variable to genetic divergence was the total length of seedlings, the reciprocal effect did not present a consistent pattern in the studied hybrid combinations.Index terms: Passiflora edulis Sims, cytoplasmic effects, biometry.Divergência genética entre híbridos e recíprocos de maracujazeiro azedo com base em características de emergência e vigor RESUMO -Características relacionadas à qualidade de sementes tem sido pouco utilizada em estudos sobre diversidade genética em maracujazeiro. O objetivo deste estudo foi avaliar a diversidade genética entre progênies constituídas por híbridos e recíprocos com base em características de emergência e vigor das sementes. Foram avaliadas: porcentagem de emergência, índice de velocidade de emergência, comprimento total da plântula, comprimento da parte aérea, comprimento da raiz primária, massa seca de parte aérea, número de plântulas normais e peso de 100 sementes. O experimento foi em delineamento inteiramente casualizado, com 20 progênies (híbridos e recíprocos) e quatro repetições de 50 sementes. A diversidade genética foi determinada através dos métodos de agrupamento de otimização de Tocher e da ligação média não ponderada entre grupos, baseada na distância de Mahalanobis, além de avaliar a contribuição relativa dos caracteres para a divergência genética e a rede de correlações de acordo com as relações entre os grupos de variável qualidade, comprimento e massa. A variável que mais contribuiu para a divergência genética foi o comprimento total da plântula, sendo que o efeito recíproco não apresentou padrão consistente nas combinações híbridas estudadas.Termos para indexação: Passiflora edulis Sims, efeito citoplasmático, biometria.1

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Section: Resultssupporting

confidence: 90%

Genetic divergence between passion fruit hybrids and reciprocals based on seedling emergence and vigor

Rosado

Cremasco

et al. 2017

J. Seed Sci.

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“…We observed a predominance of estimates of additive variance related to dominance for the 3 populations in the 2 seasons (Table 4). Baldissera et al (2012) and Silva et al (2013b) also observed a predominance of additive effects in HD genetic control. Heritability estimates of family means ranged from 55 to 76% for the 3 populations over the 2 seasons (Table 4).…”

Section: Resultsmentioning

confidence: 99%

Potential of hypocotyl diameter in family selection aiming at plant architecture improvement of common bean

et al. 2015

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ABSTRACT. Cultivars of common bean with more erect plant architecture and greater tolerance to degree of lodging are required by producers. Thus, to evaluate the potential of hypocotyl diameter (HD) in family selection for plant architecture improvement of common bean, the HDs of 32 F 2 plants were measured in 3 distinct populations, and the characteristics related to plant architecture were analyzed in their progenies. Ninety-six F 2:3 families and 4 controls were evaluated in a randomized block design, with 3 replications, analyzing plant architecture grade, HD, and grain yield during the winter 2010 and drought 2011 seasons. We found that the correlation between the HD of F 2 plants and traits related to plant architecture of F 2:3 progenies were of low magnitude compared to the estimates for correlations considering the parents, indicating a high environmental influence on HD in bean plants. There was a predominance of additive genetic effects on the determination of hypocotyl diameter, which showed higher precision and accuracy compared to plant architecture grade. Thus, this characteristic can be used to select progenies in plant architecture improvement of common beans; however, selection must be based on the means of at least 39 plants in the plot, according to the results of repeatability analysis.

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“…In this way, according to Ramalho et al (2000), one should take into consideration the parental behavior, which can be used either as female (pollen recipient), or as male (pollen donor). Baldissera et al (2012) evaluated the crosses from six bean parents without stress induction and founding Table 1. Summary of analysis of variance for combining ability referring to yield (GY), one thousand grain weight (SW), number of pods per plant (NPP), number of seeds per pod (NSP), plant height (PH), total leaf area (LA), dry weight of shoots (DMS), stomatal conductance (SC), leaf water potential (Ψw) measured at 13 pm.…”

Section: Resultsmentioning

confidence: 99%

Análise da capacidade combinatória em feijoeiro comum submetido ao déficit hídrico

et al. 2015

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This paper aimed at selecting parents to compose a common bean breeding program for drought tolerance. General and specific combining abilities were evaluated under controlled conditions, using drought tolerant parents (BAT 477 and SEA 5), elite cultivars developed at IAC (IAC Alvorada and IAC Carioca Tybatã) and their progenies obtained from a complete diallel, including the reciprocals. Sowing was done in soil following a randomized block design with three replications for both experiments, the control with irrigation and the drought stress experiment imposed from pre-flowering stage. Plants remained under drought stress for 30 days. Physiological and morphological traits as well as yield components and grain yield were evaluated, detecting additive and non-additive effects controlling these traits. The parents used in this study had contributed in different proportions in the crosses they participated in. Regarding the drought stress condition in the pre-flowering stage, the parents SEA 5 and IAC Alvorada presented greater positive effects for the general combining ability for the yield and weight of one thousand seeds, whereas the parent SEA 5 also showed a positive effect for the number of seeds per pod, suggesting the increase of these traits in the crosses they participated in. The hybrid combinations SEA 5 × IAC Alvorada showed a positive result for grain yield, related to the higher positive effect for specific combining ability and because they have as parents the cultivars which confer the best positive values for general combining ability.

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Capacidade combinatória e efeito recíproco em características agronômicas do feijão

Cited by 18 publications

References 8 publications

Genetic divergence between passion fruit hybrids and reciprocals based on seedling emergence and vigor

Genetic divergence between passion fruit hybrids and reciprocals based on seedling emergence and vigor

Potential of hypocotyl diameter in family selection aiming at plant architecture improvement of common bean

Análise da capacidade combinatória em feijoeiro comum submetido ao déficit hídrico

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