Agronomic Performance and Heterosis in Common Bean Genotypes

Valvenarg Pereira Da Silva,Cristiani Santos Bernini,Marco Antonio Aparecido Barelli,Rafhael Felipin-Azevedo,Juliana Parisotto Poletine

doi:10.5296/jas.v8i4.17329

Valvenarg Pereira Da Silva, Cristiani Santos Bernini + Show 3 more

Open Access

https://doi.org/10.5296/jas.v8i4.17329

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Abstract

The agronomic performance and heterosis of common bean genotypes were evaluated using the diallel cross between two cultivars IPR Uirapuru and IPR Campos Gerais and five local varieties BGU-1, BGU-7, BGU-13, BGU-36 and BGU-36 and its 21 possible diallel hybrids. The treatments were evaluated under greenhouse conditions in a randomized block design with ten replications, at the Empresa Mato-Grossense de Pesquisa, Assistência e Extensão Rural (EMPAER), in the county of Cáceres, state of Mato Grosso, Brazil. The characteristics were evaluated: average number of days for emergence, number of days for flowering, average height of insertion of the first pod, average final height of plants, average stem diameter, average longitudinal length of pods, average total number of pods per plant, average number of seeds per pod, average number of seeds per plant, average weight of seeds and grain production. Based on the set of analysis performed and the characteristics evaluated, it can be concluded that for the increase in production the combinations composed by the parents IPR Uirapuru × BGU-1, IPR Uirapuru × BGU-6, BGU-7 × BGU-1, BGU -7 × BGU-36, BGU-1 × BGU-36, BGU-25 x BGU-36 and BGU-13 × BGU-36 showed positive

Highlights

Worldwide, common beans (Phaseolus vulgaris L.) are the most important legume in terms of food, due to their grain being a rich source of essential proteins and amino acids (Talukder et al, 2010; Kalavacharla et al, 2011)
Based on the set of analysis performed and the characteristics evaluated, it can be concluded that for the increase in production the combinations composed by the parents IPR Uirapuru × BGU-1, IPR Uirapuru × BGU-6, BGU-7 × BGU-1, BGU -7 × BGU-36, BGU-1 × BGU-36, BGU-25 x BGU-36 and BGU-13 × BGU-36 showed positive heterotic magnitudes being the most promising to provide highly productive lines
Significant differences were recorded at the level of 1% probability (Table 1), showing the existence of genetic diversity among the parents used in the diallel crosses, which allows genetic gains in the bean breeding program using these parents

Summary

Introduction

Common beans (Phaseolus vulgaris L.) are the most important legume in terms of food, due to their grain being a rich source of essential proteins and amino acids (Talukder et al, 2010; Kalavacharla et al, 2011). It is widely cultivated in different parts of the world as well as in Brazil where it is produced in practically all regions of the country, using different technological levels in the production systems (Baldissera et al, 2012). Information about the behavior of progenies is obtained by diagnosing the results that can be performed by average of diallel analyzes that aim to estimate the general and specific combining ability by the Griffing model (1956), to estimate the values of average, varietal heterosis and specific by the method of Gardner & Eberhanrt (1966) and provides information on genetic control by the method of Jinks & Hayman (1953) (Cruz, 2006)

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