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<< JRScience Home     Volume 15 No.3   December 2004     << Back to Volume Home

EVALUATION OF SOME NEW PROMISING COTTON STRAINS AGAINST BOLLWORM COMPLEX

Muhammad Razaq, Muhammad Aslam, Sarfraz Ali Shad, M. Naeem Aslam and Noor Abid Saeed

University College of Agriculture, Bahauddin Zakariya University, Multan.

Email: mrazaq_2000@yahoo.com

Abstract: Seven cotton strains, i.e. CIM-78, CIM-80, CIM-81, CIM-84, CIM-95, CIM-96 and Cyto-55 were tested for their resistance against bollworm complex under sprayed and unsprayed conditions at Multan. Cyto-55 and CIM-95 were susceptible, while CIM-78, CIM–80, CIM-81 and CIM-84 were less susceptible to American, Helicoverpa amigera and Spotted, Earias spp. bollworms. CIM-78 and CIM–80 were susceptible to pink bollworm, Pectinophora gossypiella. CIM-78, CIM-80, CIM-81 and CIM-84 produced better yield under both sprayed and unsprayed conditions. Cyto-55, CIM-95 and CIM-96 were tolerant against pink bollworm under both conditions, but produced lower yield.

Keywords:  Cotton, Earias spp., Helicoverpa armigera, spray regime.