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Agroclimatology for optimization of sowing time of sunflower

Agroclimatology for optimization of sowing time of sunflower

Journal of Agrometeorology 1(1): 27-31

The influence of rainfall and moisture availability during the growing period on seed yield of sunflowers Morden under Bijapur conditions (Northern Dry Zone of Karnataka) was analysed using data from 1988-97. Rainfall and moisture availability index in the establishment stage were positively related to crop yield. The negative influence of rainfall during the ninth week after sowing (WAS) is ascribed to pollen washout and low pollen dehiscence which resulted in reduction of seed yield.

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Accession: 003354126

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