Elite sources of resistance against cotton leaf curl disease in upland cotton

摘要

Experiments were conducted during khari/2002 and 2003 at Punjab Agricultural University, Regional Station, Faridkot (Punjab) India, to find the resistant entries against cotton leaf curl disease (CLCuD) under natural epiphytotic conditions. The pooleddata of the two years showed that out of 783 entries, 17, namely, Dafatri 29, F 1976, F 2020, F 2032, F 2036, F 2062, F 2067, F 2070, F 2077, FHH 99, K 888, LHH 144, LHH 935, LHH 1128, Mahabeej 117, RS 2283 and RS 2315 were free from the CLCuD and categorized as highly resistant. Two entries, F 1861 and LH 1961, were found resistant with first grade of disease symptom. It was suggested that these entries could be further used in breeding programme in order to develp disease resistant varieties of upland cotton (Gossypium hirsutum).