Biochemical parameters and yield attributes of tomato (Lycopersicon esculentum Mill.) as influenced by plant growth promoting Rhizobacteria with organic and inorganic use of nutrients

PGPR are beneficial rhizospheric bacteria that can mobilize and solublize nutrient that plant can utilize, plant can uptake under some adverse conditions. PGPR promote plant growth by directly affect the metabolism of the plants by providing substances that are usually in short supply. The present investigation was carried to find out the impact of different PGPR along with organic and inorganic nutrients on plant biological parameters and crop yield at Department of Biological Sciences, Sam Higginbottom Institute of Agriculture, Technology and Sciences (Deemed-to-be University) Allahabad, during Rabi season 2015-16. Tomato plants variety NTL-186 was transplanted in pot during 2nd week of Fabuary. The experiment was carried out using 11 treatments with three replication on completely randomized design. There were five different PGPR are selected namely (PR3, PR5, PR6, PR24 and PR29) along with FYM 10 t/ha and Fertilizer dose (NPK) 120:60:50 NPK- kg/ha. Results revealed that PGPR strain PR6 along with T7 [NPK (100%) and FYM (100%)] showed the highest chlorophyll ‘a’ (2.12 mg/g/Fw), cholophyll ‘b’ (2.02mg/g/Fw), total chlorophyll (4.14mg/g/Fw) and Carotenoid (2.06 mg/g/ Fw), no. of fruit per plant (17.00), fresh fruit weight (718.33 g/plant) obtained all the data were statistically significant, over control. From the present investigation it was concluded that T7 (PR6 + NPK (100%) + FYM (100) %) was found most effective which significantly increased the biochemical parameters and yield of Tomato (Lycopersicon esculentum Mill.).