Abstract:
Eight genotypes of cotton (CIM-499, SLH-279, FH-901, CIM-707, N-111, BH-995, BH-160 and BH-1199) were tested for their resistance against whitefly, Bemisia tabaci (Genn.), thrips, Thrips tabaci (Lind.) and jassid, Amrasca devastans (Dist.) during 2003. Genotypes did not show significant differences regarding jassid and thrips population that ranged from 1.40 to 1.82 and 10.59 to 12.85 per leaf, respectively. Significant difference was recorded among genotypes regarding whitefly population. CIM-499 showed maximum susceptibility to whitefly (3.31/leaf) and CIM-707 showed minimum (1.99/leaf). Jassid and whitefly populations remained above economic threshold level throughout the season. Maximum population of whitefly (7.55/leaf) and jassid (2.26/leaf) was recorded on September 24, 2003 while thrips (28.16/leaf) were maximum on August 21, 2003.
Page(s):
205-208
DOI:
DOI not available
Published:
Journal: Journal of Agricultural Research, Volume: 45, Issue: 1, Year: 2007