Impact of Diverse Vesicular Arbuscular Mycorrhizal Fungi on Soil Microbial Diversity and Growth Attributes of Wheat Triticum Aestivum L

Abstract

In India the cost of fertilizer has already escalated far behind the reach of poor farmers. Therefore, to estimate the cost of fertilizer use, application of bio fertilizer like mycorrhiza is restored for crops, is helping to sustain the production system for long term. The beneficial effect and use of inoculants such as AM Fungi on the supplementary source of plant nutrition of agricultural crop plants depends on both newlinethe abundance and type of fungi present in the soil. Also, successful cultivation and newlinehigh yield is dependent on depth of sowing. newlineHowever, use of the AM fungi on a wide scale in agriculture is dependent on development of crop growth promoting strains of AM fungi which are superior to native soil population of AM fungi. Therefore, field study is necessary to understand abundance and type of indigenous AM fungi present in the rhizosphere of the crop. In this view, present study is undertaken to isolate, identify and classify the indigenous newlineAM fungi associated with experimental plants grown in red and black soil at different newlinelocalities of Waghodia taluka and also study is undertaken to determine the effect of newlinedifferent AM fungi with other microorganisms on different growth parameters, yield newlineparameters and nutrient availability of wheat crop at Parul University Agricultural newlineInstructional Farm, Patiyapura. More no. of AM fungal species are found from Vyara newline(red soil) and Khervadia (black soil). 5 AMF genera were isolated. Glomus is more newlinepredominant among 5 genera. 125kg per hectare grains of wheat variety GW496 is sown in Rabi season. Field area is 360 sq. meters with 6 treatments allocated randomly in split-plot design. Each treatment plot is 5x4 sq. meters replicated 3 times in 18 blocks with a spacing of 12cms to 15cms between each row, depth of sowing is about 4-6cms. VAM fungal inoculum is applied near root zone of the plants as per recommended dose of bio inoculants. Soil pH was 6.65 which did not vary throughout the cultivation.