Abstract

LIGARRETO M., Gustavo A.; CASTRO H., Oscar A.  and  CHAVES C., Bernardo. PHENOTYPIC STABILITY OF SHRUB BEAN (Phaseolus vulgaris L.) COLLECTION. rev.udcaactual.divulg.cient. [online]. 2015, vol.18, n.1, pp.109-118. ISSN 0123-4226.

The bean crop is a familiar agricultural activity, generally produced under conditions of biotic and abiotic stress. Therefore, it is necessary to select stable materials with good yield potential, to contribute to the food security and competitiveness. The research aimed to evaluate the phenotypic stability of 13 red shrub bean accessions of a reference collection in five environments with moderate and cold climate conditions in Colombia. The stability analysis was realized using Eberhart & Russell, Wricke y Shukla and AMMI methodologies. The analysis of the results showed that ICA Cerinza and Boyacá 18 were the most stable genotypes with higher yield potential than the average. Perú 40 and Diacol Andino genotypes were very high in yield but they were the most unstable ones. The AMMI analysis showed that the environments contributed significantly to the GxE, except for Mosquera 4, with 79.09 % of the variance for the two principal components.

Keywords : GxE interaction; regression; ecovalence; stability variance; AMMI.

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