Effect of Different Dates of Sowing on the Incidence and Severity of Spot Blotch Disease of Wheat

Author: Puja Kumari*, C.S. Azad and Amarendra Kumar

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Abstract

ABSTRACT: Spot blotch disease is quite prevalent in warmer region, and its sowing time play important role in its incidence and severity. The result of the experiment clearly showed that timely sown (11th Nov.) wheat have given the best results in terms of all aspects (double-digit scoring- 00, PDI- 26.67, DI %- 40.08 of V7- HD 3267) to late sown (16th Dec.) double-digit scoring- 14, PDI- 35.55, DI %- 47.05 of V7- HD 3267 and very late sown (7th Jan.) double-digit scoring- 15, PDI- 28.88, DI %- 76.22 of V7- HD 3267 respectively. Maximum disease severity was observed from V9- DBW 71 for all three different dates of sowing. V7 (HD 3267) has given the best result in terms of disease incidence and disease severity.

Keywords

Keywords: Bipolaris sorokiniana, Genotype, Severity, Disease incidence, Percent disease index (PDI).