To manage planting date based on optimal compatibility to the environmental condition a split plot experiment based Randomized Complete Block Design with three replications was carried out. Four planting dates (November 6th and 21st, December 6th and 21st) in main plots and four genotypes (Hyola401, PP401, RGS003 and Option500) in subplots were studied. According to analysis of variance results, grain yield, yield components and biological yield were significantly affected by planting date, genotypes and interaction effect. The first planting date (November 6th) had maximum grain yield (2611.6 t ha−1) and after it another planting date showed decrease in amount (13.74, 31.36 and 41.97 % respectively). First planting date was superior in physiological index as compared to the other planting dates. Hyola401 hybrid, due to the fact that it had a higher leaf area index (3.51), total dry matter (1248.91 g m−2), crop growth rate (21 g m−2 day−1), net assimilation rate (7 g m−2 day−1), relative growth rate (0.064 g g−1 day−1) and maximum grain yield, was seen to be the most adaptable genotype. Hyola401 hybrid at first planting date germinated in shortest time (5.8 day) had the highest flowering duration (24.0 day) and long days to ripening (154.0 day). Finally according to the results of the present work, sowing of Hyola401 hybrid on 6th November was recommended as suitable planting date.
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences – Springer Journals
Published: May 27, 2016
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