Abstract

ESTRADA-PRADO, Wilfredo et al. Drought response of bean (Phaseolus vulgaris L.) cultivars using different selection indexes. cultrop [online]. 2016, vol.37, n.3, pp. 79-84. ISSN 1819-4087.  http://dx.doi.org/10.13140/RG.2.1.5181.2082.

The response of 15 bean cultivars the hydric defficit tolerance was evaluated in an experiment carried out between the years 2012-2013 at CCSF “Roberto Aguilar”, Bayamo municipality, Granma province, Cuba. Two treatments were used: cultivars of bean under watering and cultivars of bean low drought, distributed in a random block design. Ten plants were selected at random from each treatment where indicators were evaluated: number of sheaths for plants, weight of the sheaths (g), lenght of the sheaths (cm) and wide of the sheaths (mm). Also to determine the tolerance the following indexes were evaluated: yield losses (YL), geometrical mean productivity (GMP), mean productivity (MP), relative efficiency index (REI), drought tolerant tndex (DTI), stability yield index (SYI), susceptibility drought index (SDI), harmonic mean (HM) and tolerance (T). The results showed that the soil hydric defficits evaluated have an influence (p≤0,05), in the behavior of the cultivars, where CC-25-9R variety showed the most tolerant hydric defficit, while Tomeguín-93 was the most susceptible variety

Keywords : varieties; drought susceptibility; drought tolerant.

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