Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/999866
Title: Implications of selection in common bean lines in contrasting environments concerning nitrogen levels.
Authors: FURTINI, I. V.
RAMALHO, M. A. P.
ABREU, A. de F. B.
Affiliation: ISABELA VOLPI FURTINI, CNPAF; MAGNO ANTONIO PATTO RAMALHO, UFLA; ANGELA DE FATIMA BARBOSA ABREU, CNPAF.
Date Issued: 2014
Citation: Crop Breeding and Applied Biotechnology, v. 14, n. 3, p. 160-165, Oct. 2014.
Description: Grain productivities of 100 bean lines were evaluated in the presence and absence of nitrogen fertilizer in order to identify those with high nitrogen use efficiency (NUE) and to determine the correlated response observed in a stressed environment following selection in a non-stressed environment. The genetic and phenotypic characteristics of the lines, as well as the response index to applied nitrogen, were determined. The average grain productivities at both locations were 39.5% higher in the presence of nitrogen fertilizer, with 8.3 kg of grain being produced per kg of nitrogen applied. NUE varied greatly between lines. Lines BP-16, CVII-85-11, BP-24, Ouro Negro and MA-IV-15-203 were the most efficient and responsive. The results showed that it is possible to select bean lines in stressed and non-stressed environments. It was inferred that common bean lines for environments with low nitrogen availability should preferably be selected under nitrogen stress.
Thesagro: Feijão
Phaseolus vulgaris
Nitrogênio
Seleção
Melhoramento genético vegetal
Language: en
DOI: 10.1590/1984-70332014v14n3a24
Type of Material: Artigo de periódico
Access: openAccess
Appears in Collections:Artigo em periódico indexado (CNPAF)

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