Fibre Traits Analysis for Different Planting Times Under Diverse Incidence Levels of Cotton Leaf Curl Disease

D. IQBAL, A. FAROOQ, M. I. SARWAR, K. HUSSAIN, M. A. MIAN, A. HUSSAIN, K. AHMAD

Abstract


Cotton leaf curl disease (CLCuD), is a serious threat in core cotton growing areas of Punjab (Pakistan), resulting in reduction of ginning out turn (GOT%) and deteriorating cotton fibre quality to a great extent, by comparing healthy and CLCuD infected plants was found. Abiotic & biotic factors such as white fly infestation, temperature and planting time effect cotton leaf curl disease epidemiology. The results showed that the physical properties viz; GOT %, was decreased significantly up to 11.03% and minimum decline was 0.51%. The maximum fibre length, was reduced 9.41% on 1st May sowing. The minimum value 78.5 of uniformity index (U.I%) was recorded on 15th March planting and a reduction of 9.02% in fibre strength and coarser micronaire value of -12.5 % due to CLCuD infestation for 15th March planting was witnessed.


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