Abstract

DURAN A., Águeda; LAMBERT G., Tania  and  VELAZQUEZ F, Roberto. Evaluation of improved genotypes of black bean Phaseolus vulgaris in barinas and monagas, Venezuela. Rev. Cienc. Agr. [online]. 2014, vol.31, n.2, pp.63-75. ISSN 0120-0135.  https://doi.org/10.22267/rcia.143101.43.

The research was developed at the La Alborada farm (Mamon Mamonal sector, municipality of Rojas, state of Barinas) and La Ceibafarm (Aparicio sector, municipality of Piar, state of Mona-gas) on Inceptisols soils and Entisols, respectively, during dry season from November, 2011 to February, 2012.The aim of this investigation was to evaluate the agroproductive response of seven black bean genotypes: SA 029, line 13, Minita, Balina, Sesentera, Silvinera, and the Tacarigua commercial variety. A bifactorial randomized blocks design was used, the factors were the locality and the genotypes, with seven treatments and four replicas, distributed in 28 plots with a total experiment area of 554.8 m². The sowing area was of 0.60 x 0.07 m for a total of 13200 plants. Plant height (cm), number of pods per plant, number of seeds per pod, weight of 100 seeds (g), and yield (t.ha^-1) were evaluated. Yields in the state of Barinas were higher for the Balina and Tacarigua varieties, with 1.10 (t.ha^-1) and 1.06 t.ha^-1, respectively. In the state of Monagas, yields were higher for Line 13 variety with 1.92 t.ha^-1, followed by Tacarigua with 1.68 t.ha^-1, and Silvinera with 1.65 t.ha^-1.The economic effect for all varieties per locality and between both localities was satisfactory.

Keywords : Black bean; varieties; localities; yields; economic effect.

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