Screening of Bacillus sp. (OQ654027) Mediated Seed Bio-Priming Enhance Plant-Growth-Promotion for Sustainable Crop Production of Groundnut and Chickpea

Abstract

Plant growth-promoting bacteria are valuable microbes that enhance the plant growth, development, and yield. Several seed priming methods are able to improvise seed germination, seedling potency, to overwhelmed abiotic stress and biotic stress management which gets prime attention. Generally, plant-growth promoting bacteria are utilized for biopriming technique that is able to survive under stress environmental conditions. The aims of the present investigation were to screening of KC9 bacterial isolate as PGPB in groundnut and chickpea and study the effects of KC9 bacterial isolation seed, seedling germination and growth during the development of both seeds. In this study KC9 has been isolated from the soil sample of chickpea crop field at Saurashtra region. Preliminary screening was conducted based on their identification via morphological, biochemical i.e., catalase, starch hydrolysis, sugar utilization, motility, IMViC test, gram’s nature and by 16S rRNA gene nucleotide sequences and identified as Bacillus sp. that has been submitted to the NCBI for Accession number. Further examine the production of indole acetic acid (IAA), Ammonia (NH3), HCN, Siderophore and Phosphate solubilization. KC9 (Bacillus sp.) was recognized as most efficient plant-growth promoting bacteria. For the pot experiment seed biopriming method is employing to coat the seeds of chickpea and groundnut with Bacillus inoculant consider as treated and seeds sown with double distilled water as control. Bacillus coated seed biopriming also minimize the seed germination time period that takes only 3-4 days to proper seed radicle development. By the statistical approach of paired t-test of pot experiment on chickpea and groundnut seeds and seedlings were treated with Bacillus strain exhibited significantly higher levels at of seed germination, seedling growth via root length, shoot length and number of leaves in compared to