Studies on resistance of cotton genotypes against jassids (Amrasca biguttula biguttula Ishida)
Abstract
Cotton plants with high phenolic content showed low incidence of jassids. Correlation coefficient between leaf hopper population and tannin content was positive and significant. Gossypium anomalum (B1), G. armourianum (D2-1), G. raimondii (D5), G. davidsoni (D3-D) and G. thurberi (D-1) were with low tannin and high phenol content, and less susceptible genotypes to jassids.
Keywords
Cotton, Amrasca biguttula biguttula, morphological, biochemical characters