Author: R. AHMAD AND T. MUKHTAR

Publishing Date: 2007

E-ISSN: 0255-7576

Volume 25 Issue 1

ABSTRACT:

The effects of Pasteuria penetrans encumbered juveniles of Meloidogyne incognita, M. graminicolaand M. javanica with two levels of attachement (5-10 and > 11 spores / J2) were studied on the invasion of roots of tomato, barn yard grass, sorghum and egg plant. Invasion by spore encumbered juveniles was significantly less as compared to juveniles without spores. There was no statistically significant difference in root invasions between the two attachment levels in case of tomato, barn yard grass and sorghum. However, a statistically significant difference was observed between the two attachments levels in case of M. javanicainvading roots of egg plant. The encumbered juveniles (5-10 spores / J2) of M. incognita, M. graminicola andM. javanica caused 41.76 % reduction in invasion of tomato roots, 24.58 and 33.13% reductions of barn yard grass and sorghum roots and 11.20 and 19.55 % reductions of tomato and egg plant roots, respectively. The reductions in invasions caused by the juveniles encumbered with > 11 spores J2 were: 46.47 % in tomato byM. incognita; 25.54 and 38.40 % in barn yard grass and sorghum by M. graminicola and 23.87 and 43.73 % in tomato and egg plant by M. javanica, respectively.