Abstract:
Ten (five local and five improved) cassava genotypes were campared, in a multilocational and on farm trials, for their resistance to the ACMV, CGM and for tuber yields, cynide contents and palatability. The improved genotypes particularly TMS 30572, TMS 30395, TMS 30337 and TMS 60142 sustained low level of infections at most locations unlike the local genotypes which contracted severe infection rapidly. Three components of resistance were identified: resistance that (1) delay onset of epidemic, (2) reduces rate of epidemic development and (3) enhances recovery of the plants from infection