Yield losses due to association of Heterodera Cajani Koshy, 1967 and Macrophomina phaseolina (Tassi.) Goid on Greengram (Vigna radiata L. Wilczek)*

Department of Nematology, Tamil Nadu Agricultural University, Coimbatore-641 003.

*Part ofthesis submitted by the senior author for the degree of M.Sc (Ag) to Tamil Nadu Agricultural University.