Year: 2018 | Month: February | Volume 11 | Issue 1
Determination of Optimum Sowing Time of Grass Pea Based on Yield Variation as Affected by Varied Dates of Sowing in New Alluvial Zone of West Bengal
Abstract:
To investigate the optimum sowing time of grass pea (Lathyrus sativus L.) in New Alluvial Zone of West Bengal, field experiment was conducted with grass pea (cv.: Prateek), sown on nine different dates from 26th October to 21st December at weekly interval during the winter season of 2016-17 at the Instructional Farm (22°58´ N, 88°31´ E), Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India. Grain yield and different yield attributes viz. numbers of pods per plant (PP), numbers of grains per pod (GP) and test weight of grains (TW) were observed and statistically analyzed. It was observed that sowing time greatly altered grain yield and yield attributes. Highest mean grain yield (994.4 kg/ha) was obtained from the crops sown on 16th November. TW showed highest correlation with grain yield (r = 0.88**). Test weight of grains seemed to be the most important yield attribute in terms of adjusted R2 values (0.752**), obtained from the regression analysis between grain yield and different yield attributes individually and in combination. It was clear that grass pea should be sown after 2nd November and not beyond 16th November to obtain the potential productivity in the New Alluvial Zone of West Bengal.
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