Abstract

Sorghum grain production has been hoosied in the recent years. mainly due to the evolution of high yielding strains as CSH 1 and Sworna; The impact of seasonal varia- tion on the yield of those two sorghum genotypes, is conspicuous: Information available on the influence of time of sowing on the yield of CSH1 end Swarna under Coimbatore conditions is meagre. With a view to elicit information on the influence of time of sowing on the yield of C SH 1 and Swarna, a trial was conducted at the Millet Breeding Station, Coimbatore for two years from 1969 to 1971. Twelve monthly sowings in a year and the two sorghum genotypes formed the main plot and subplot treatments for the studies. In both the years of study, significantly higher yield was obtained from March sown crops, consistently. The straw yields of March and April sowing have surpassed all the other mothly sowings. The results of the trial clearly indicated that March is the ideal time for sowing CSH 1 and Swarns under Coimbatore conditions.

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