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Agrociencia
versão On-line ISSN 2521-9766versão impressa ISSN 1405-3195
Resumo
PEREZ-RUIZ, Juan A. et al. Assessment of ten barley genotypes (Hordeum vulgare L.) sown on five planting dates in two agricultural cycles. Agrociencia [online]. 2016, vol.50, n.2, pp.201-213. ISSN 2521-9766.
The objective of this study was to evaluate agronomic characteristics, grain yield, and physical grain quality in malting barley (Hordeum vulgare L.) genotypes cultivated under irrigation. The study was carried out at the El Bajío region of Mexico. The variables evaluated were number of tillers (NM), number of nodes on the main stem (NN), plant height (AP), hectoliter weight (PHL), weight of one thousand grains (PMG) and grain yield (REN). The experimental design was randomized complete blocks with a 10x5x2 factorial arrangement of treatments: ten genotypes, five sowing dates and two agricultural cycles. The sowing dates were November 15 and 30, December 15 and 30 and January 15. The agricultural cycles were 2012-2013 and 2013-2014. The data were analyzed with an ANOVA, means were compared with Tukey test (p≤0.05) and correlations. The genotypes expressed higher NM, NN, AP, PHL, PMG and REN when sowing was at the end of autumn, while those established at the beginning of winter had lower values. The varieties Alina and Armida produced higher yields and better grain physical quality.
Palavras-chave : Hordeum vulgare L.; El Bajío region; grain physical quality; sowing dates.