Varietal trial of cotton [in Bangladesh]
1980
Ahmed, A. | Miah, M.I.H. | Bhuiyah, M.I.H.
A varietal trial with nine imported cotton varieties including two local ones was conducted at the Bangladesh Agricultural Research Institute, Regional Station, Jessore in 1977-78. Seeds were sown on 21-8-77 and the harvesting was done in four installments from 19-12-77 to 10-3-78. The variety Coker-310 gave the highest yield 2025.20 kg seed cotton per hectare followed by Shanghai -204, D5/2. Deltapine-16, Curolina queen, DPy-1, MCU-5 and Khandopp while 2421-y gave the lowest yield 1559.11 kg seed cotton per hectare. The diseases found were anthracnose (Colletotrichum sp.), leaf spot (Cercospora gossypinal), leaf spot (Altemaria solani) and little leaf (Virus) but their occurrence and degree of incidence and the varietal variations were not notable. The important insect pests were spotted boll worm (Earias spp.), red cotton bug (Dysdercus cingnlatus), dusky cotton bug (Oxycarems spp.), leaf roller (Sylepta derogata), aphids (Aphis gossypii) and jassid (Kolla spp., Platyretus spp.). These were controlled by spraying carbicron.
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