English

Hugo Tiago Ribeiro Amaro,Ignacio Aspiazú,Abner José De Carvalho,Andréia Márcia Santos Do Souza David,Marcos Gleidson Pereira Dos Santos,Izabel Costa Silva Neta

doi:10.14393/bj-v31n2a2015-22354

Abstract

For adapting well to various soil and climatic conditions in Brazil and the tradition of high consumption, bean plays a key role in feeding the population. Despite the different environmental conditions, there are few specific cultivars for each planting season, particularly when aimed at the production of quality seeds. The objective of this study was to evaluate the physiological potential of bean seeds from five population densities, under the edafoclimatic conditions of Janauba, northern Minas Gerais. The experiment was conducted on winter crop season, with planting in August 2011. The experimental design was a randomized block in 3 x 5 factorial, with four replicates. The treatments consisted of three cultivars of common bean with different growth types (Ouro Vermelho, Ouro Negro and BRSMG Madreperola, and five densities (100, 200, 300, 400 and 500 thousand plants ha -1 ). Seeds were evaluated for water content, germination and vigor (tests of first count, seedling emergence, emergence speed and accelerated aging). From the results, it can be concluded that the bean seeds of the cultivar Ouro Negro present superior physiological potential in relation to the cultivars Ouro Vermelho and BRSMG Madreperola. Increasing the sowing density up to 300 thousand plants ha -1 is suitable for the production of bean seeds on winter crop season, representing a good alternative for cultivation in the region.

Highlights

The common bean (Phaseolus vulgaris L.), by adapting well to various soil and climatic conditions in Brazil and by the high consumption tradition, plays a key role in the diet of the Brazilian population and in the demand for manpower (SENA et al, 2008)
Considering the sown area and expected yield, the production of beans in the 2011/12 season should be 3.137 million tons (CONAB, 2012), with average yield estimated at 873 kg ha-1
The experiment was conducted in winterspring season, planted in August 2011, in the municipality of Janaúba, northern Minas Gerais, with the following coordinates: 15° 47' 50'' S latitude and 43° 18' 31'' W longitude, and altitude of 516 m

Summary

Introduction

The common bean (Phaseolus vulgaris L.), by adapting well to various soil and climatic conditions in Brazil and by the high consumption tradition, plays a key role in the diet of the Brazilian population and in the demand for manpower (SENA et al, 2008). It is one of the major agricultural activities in the country, with its chain of production, processing and marketing generating employment and income, especially to lower income classes. Among the reasons pointed out for low yield in Brazil are extreme sensitivity of the crop to climatic variations, use of seeds with unknown origin, crop implantation in soils with high acidity and inappropriate use of population density in the production areas , for semierect to erect bean cultivars (SHIMADA et al, 2000)

Objectives

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Results