Critical levels of dry rotting of yellow yam (Dioscorea Cayenensis) planting material & yield responses after disinfesting heads of pratylenchus coffeae & after post-plant nematicide applications

Abstract

Two trials were conducted with yellow yam to determine the level at which dry rotting of planting material becomes critical and therefore wich heads should be aceptable and which should be rejected growth and yield responses after disinfesting heads of P. coffeae and the effects of post-planting nematicide treatments on qualitative and quantitative yields.