ZAREENAA BEGUM.M STUDIES ON THE DISEASE COMPLEX OF PIGEONPEA CYST NEMATODE Heterodera cajani KOSHY 1967 ON THE ROOT ROT CAUSED BY Macrophomina phaseolina (Tassi.) Goid AND THEIR MANAGEMENT ON GREENGRAM (Vigna radiata L. Wilczek) CD Subjects--Topical Terms: "PIGEONPEA CYST NEMATODE, Heterodera cajani"