Influence of PGPR and Two Vesicular-Arbuscular Mycorrhizal Fungi on the Biomass of Two Cultivars of Chenopodium quinoa Willd. under Pot Conditions

Dr. Prashanthi Sandepogu, Dr. Mamatha

Abstract: The present research work gives the information about the effect of VAM and PGPR on improvement of plant biomass of the Chenopodium quinoa Willd. The research was carried out at research agricultural field at Telangana University, Nizamabad, Telangana state. The pot experiments were conducted during Khari season of 2017 and in 2018 on loamy sand soil to study the effect of phosphorus levels and bio-fertilizers like PGPR and VAM on biomass productivity and uptake of Phosphorus. We adopted completely randomized design (CRD) for these experiments, seven treatments were designed along with control to estimate biomass productivity (0, 15, 30, 40 and 45g/ha) in treatments of bio-fertilizers (control, GM, GA, GM+GA, PGPR, PGPR+ GA, PGPR+GM, PGPR+GM+GA) thereby making sixteen treatment combinations tested in randomized block design with two cultivars of Quinoa () INIA ? 431 and INIA-427). Results indicates that application of VAM and PGPR increases the biomass of the plant up to 40 to 45kg/ha significantly increased net weight of root, stem and total plant weight. This biomass content includes weight of stem, root and total plant along with leaves, branches, inflorences and a seed timely till yield of the crop was measured. Interaction effect of VAM like Glomus mosseae and Glomus fasciculatum and (PGPR) Pseudomonas aeruginosa was significantly improved the biomass of the all the parts of the plant both in vegetative and reproductive parts. This present research work indicates that the application of VAM and PGPR better option for the improvement of biomass of the plant to achieve better yield in Chenopodium quinoa Willd. The results were shown in the form of tables and in graphs.

Keywords: Chenopodium quinoa Willd INIA- 431, INIA- 427 Glomus mosseae, Glomus aggregatum Pseudomonas aeruginosa, VAM PGPR, VAM, Biomass Control, GM, GA, GM+GA, PGPR, PGPR+ GA, PGPR+GM, PGPR+GM+GA