Comparative incidence of pink-bollworm on some cultivars of Hirsutum cotton
1985
Kalsy, H.S. | Singh, B. | Garg, H.R. (Punjab Agricultural Univ., Faridkot (India). Regional Research Station)
Twenty-five varieties of upland cotton (Gossypium hirsutum L.) were evaluated with regard to comparative incidence of pink-bollworm (Pectinophora gossypiella Saunders) during 1982-83. Varieties F505, F286 and F414 were more tolerant to bollworm damage both on boll and loculi basis. F286 showed the highest lint yield of 960 kg/ha in the first experiment and 985 kg/ha in the second experiment. The appreciable varietal differences for bollworm incidence suggested the great importance of initial screening of the cotton breeding materials against bollworm in any cotton varietal improvement programme
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