Journal of Food, Agriculture and Environment

Assessment of effect of beneficial microorganisms on plant growth and yield of quinoa (Chenopodium quinoa Wild) under semi-arid

Author(s):

Alfisols B. Ameer Pasha, L. Krishna Naik, C. Seenappa, P. Venkatesha Murthy, N.N. Asha

Recieved Date: 2021-07-28, Accepted Date: 2021-09-15

Abstract:

An experiment was conducted to assess the influence of beneficial microbial inoculants on growth and yield of quinoa under glass house conditions in the University of Agricultural Sciences, Bangalore. Five microbial cultures viz., Azotobacter chroococcum, Bacillus megaterium, Fraturia aurantia, Pseudomonas fluorescens and Glomus fasciculatum were tested. Pure cultures of selected Azotobacter chroococcum, Bacillus megaterium, Fraturia aurantia and Pseudomonas fluorescens isolates were sub-cultured on specific medium and maintained in slants for further studies. Seventeen treatments were tested for identifying a superior treatment for attaining maximum plant growth and yield parameters. The analysis of variance indicated that treatments differed significantly in influencing plant traits and quinoa yield. Based on Duncan’s Multiple Range Test, T17 inoculated with Azotobacter chroococcum + Bacillus megaterium+ Pseudomonas fluorescens was superior with significantly higher plant height, number of leaves/plant, number of branches/plant, leaf area, panicle length, panicle weight, shoot and root dry weight and grain yield of quinoa. Significant correlations of plant height with number of leaves and branches/plant; number of leaves/plant with number of branches/plant were observed. Panicle length and weight were significantly correlated with plant height, number of leaves and branches/plant. Panicle length and weight had significant correlation with shoot and root dry weight and leaf area. The quinoa yield was significantly influenced by plant height, number of leaves/plant, panicle length, panicle weight, shoot and root dry weight, leaf area and soil N. We recommend T17 inoculated with Azotobacter chroococcum+ Bacillus megaterium+ Pseudomonas fluorescens for attaining maximum plant growth and yield parameters. There is a need for testing the superior microorganisms in field condition for greater efficacy before large-scale adoption by farmers in semi-arid Alfisols.

Keywords:

Microbial cultures, plant growth traits, yield parameters, correlation, Alfisols

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Journal: Journal of Food, Agriculture and Environment
Year: 2021
Volume: 19
Issue: 3&4
Category: Agriculture
Pages: 58-63

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