00460cam a2200133ua 4500020001800000082001700018245013800035260006300173300001200236500001700248700001900265700001800284700002400302  a81-7019-323-0  a632.bSIN/RE  aRecent Researches in Ecology, Environment and Polution, Part- 2 /  Environment and Biotechnology ( A New Frontiers of Plant Pathology  a : bToday and Tomorrows Printers and publishers , c1988.  a126 ; .  a** Reference1 aSingh, B. P  .1 aVaerma, H N  1 a.Srivastava, K M  .