INTERACTION BETWEEN glomus aggregatum, bacillus coagulans AND trichoderma harzianum AND THEIR INFLUENCE ON GROWTH, NUTRIENT AND PHYTOCHEMICAL CONSTITUENTS OF solanum xanthocarpum SCHRAD AND WENDL

摘要

A pot trial experiment was conducted to assess the interaction between arbuscular mycorrhizal fungus Glomus aggregatum and some PGPR's, Bacillus coagulans and Trichoderma harzianum, in soil and their consequent effect on growth, nutrition and phytochemical constituents of Solarium xanthocarpum Schrad and Wendl seedlings. Triple inoculation of G.aggregatum, B. coagulans, T. harzianum resulted in maximum plant biomass P, K, Fe, Zn, Cu, and Mn content and phytochemical constituents(total phenols, orthodihydroxy phenols, flavonoids, alkaloids, saponins and tannins) of S. xanthocarpum seedlings. It also increased the mycorrhizal root colonization and spore numbers in the root zone soil of the inoculated plants over uninoculated control plants. The enzymeactivity, namely acid phosphatase, alkaline phosphatase, and dehydrogenase and total population of B.coagulans and T. harzianum, in the root zone soil was found high in the three combination treatments and low in the uninoculated control. Triple inoculation with G. aggregatum, B.coagulans, T. harzianum proved to be the best microbial consortium for inoculating S.xanthocarpum at nursery level in order to get healthy and vigorously growing seedlings.