Abstract
Symptom severity grades of cotton leaf curl disease and its effect on the yield and fibre quality of upland cotton in Punjab, India.
Abstract
An experiment was conducted from the kharif season of 2001 to the kharif season of 2004 in Punjab, India to evaluate the losses in seed cotton yield and quality characters of upland cotton due to infection by cotton leaf curl virus. On average, a 50.4% reduction in boll number and a 42.9% reduction in boll weight due to the disease were observed. Fibre length was reduced by 5.2%, strength by 5.4%, elongation by 10%, uniformity by 2.2% and miconaire value by 4.1%.
