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Effect of nitrogen in bean genotypes grown in irrigated lowland of the State of Tocantins

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Author(s): Sérgio Alves de Sousa | Joedna Silva | José Luiz Venâncio | Taynar Coelho de Oliveira | Hélio Bandeira Barros | Rodrigo Ribeiro Fidelis

Journal: Journal of Biotechnology and Biodiversity
ISSN 2179-4804

Volume: 3;
Issue: 2;
Start page: 80;
Date: 2012;
Original page

Keywords: Phaseolus vulgaris | mineral stress | subirrigation

ABSTRACT
The bean crop has a major socioeconomic importance for Brazil and the nitrogen fertilization is one of the mostlimiting factors. The aim of this paper was to assess the effect of nitrogen fertilization over common bean genotypesgrown in an irrigated lowland field at State of Tocantins. The study was conducted throughout two trials (high andlow nitrogen), both in a completely randomized blocks design, being essayed 25 genotypes in three replications. Theevaluated characteristics were height of first pod insertion, plant height, number of pods per plant, number ofgrains per pod, one hundred grains mass and grain yield. The evaluated genotypes suit to mechanical harvest andpresented positive response to nitrogen fertilization. The genotype CNFC-10467 standed out and presentedpotential to be grown in irrigated lowland from State of Tocantins.

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