Effect of mustard cake on the hatching and cyst population of Heterodera avenae on wheat

Studies on the effect of mustard cake on larval hatch and cyst formation of cereal cyst nematode, Heterodera avenae were carried out by soaking the cysts in different concentrations of extract (N, N/5, N/20, N/80 & N/160), and by growing wheat plants in cake amended (1,2,3,4, & 5% w/w), naturally infested and artificially inoculated sandy loam soil. The hatching of cysts was minimum in normal concentration (N) and in 5% (w/w) amended soil. The application of mustard cake significantly reduced the cyst formation and increased the number of tillers and shoot weight of wheat plants. Initially mustard cake above 2 percent reduced the shoot length.