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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Selection indices to identify drought-tolerant grain sorghum cultivars.
Autores:  MENEZES, C. B.
TICONA-BENAVENTE, C. A.
TARDIN, F. D.
CARDOSO, M. J.
BASTOS, E. A.
NOGUEIRA, D. W.
PORTUGAL, A. F.
SANTOS, C. V.
SCHAFFERT, R. E.
Data:  2014-12-02
Ano:  2014
Palavras-chave:  Sorgo
Rendimento
Variedade
Resumo:  Twenty-five cultivars of grain sorghum [Sorghum bicolor (L.) Moench] were examined under both drought stress and normal conditions in 4 experiments. In each condition, genotypes were evaluated in a factorial experiment using a randomized complete block design with 3 replications. Eight drought tolerance indices including stability tolerance index, mean productivity (MP), geometric MP, harmonic mean, stress susceptibility index, tolerance index, yield index, and yield stability index were estimated for each genotype based on grain yield under drought (Ys) and irrigated conditions (Yp). The results indicated that there were positive and significant correlations among Yp and Ys with geometric MP, MP, harmonic mean, and stability tolerance index, indicating that these factors are better predictors of Yp and Ys than tolerance index, stress susceptibility index, yield stability index, and yield index. Based on adjusted means at Yp and Ys, indices geometric MP, MP, harmonic mean, and stability tolerance index, unweighted pair group method with arithmetic mean cluster and biplot analysis, the most tolerant cultivars were '9929020', '9929034', and 'N 95B'.

2014
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  1676-5680

30925

http://www.alice.cnptia.embrapa.br/handle/doc/1001366

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/112876/1/Artigo-sorgo.pdf
Editor:  Genetics and Molecular Research, Ribeirão Preto, v. 13, n. 4, p. 9817-9827, 2014.
Relação:  Embrapa Meio-Norte - Artigo em periódico indexado (ALICE)
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