College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur - 680 656, India
Online published on 29 October, 2012.
In cowpea, physical mixtures generated through mixing of seeds from three resistant and two susceptible lines were evaluated in two, three and four way combinations for three seasons. During all the seasons, all the physical mixtures expressed compensatory effect for level of aphid resistan.ce. There was a positive correlation with the level of aphild resistance expressed and the (%) obstructlon created through physical blending. Both the susceptible lines had a GCoA more than one for level of aphid resistance, showing improvement in level of aphid resistance over purestand of the susceptlbles.
