Assesment of cotton germplasm of Pakistan against Cotton leaf curl disease (CLCuD)

Abstract

Twenty three cotton lines included in National Coordinated Varietal Trial (NCVT) of Pakistan were assessed against Cotton leaf curl disease (CLCuD) through whitefly transmission and petiole graft technique. All the strains found susceptible against CLCuV. Out of twenty three lines only CIM-608 appeared as moderately resistant with minimum disease rating of 0-3 , where as all other lines were moderately susceptible against CLCuD. Petiole graft technique (PGT) found more reliable and convenient for effective screening breeding material.