Effect of resource conservation practices and conventional practice on population of (Meloidogyne graminicola) affecting different plant growth parameters in rice

Conducted to study the effect of resource conservation practices and conventional practice on population of Meloidogyne graminicola affecting different plant growth parameters in rice revealed that higher populations of second stage juvenile was obtained from fields with intervention of zero tillage. However, conventional practice and zero tillage rice-zero tillage wheat with sesbania had considerably low populations. Maximum stunting was found in case of zero tillage rice-zero tillage wheat with residue whereas soil of conventional tilled transplanted puddle rice-conventional tilled broadcasted wheat with and without residues showed minimum reduction in plant height. Decline of shoot weight was found associated with advancement of stunting in most of the cases. Advancement in stunting was also found associated with root knot index which was 5.0 in case of different resource conservation practices as compare to zero tillage rice-zero tillage wheat with sesbania and conventional practice which was less than 3.0. It was found that initial population of nematode, stunting, and shoot weight reduction is much higher in resource conservation practices as compare to conventional practice whereas sesbania incorporation in resource conservation practices was found as a better option for the management of M.graminicola.