Biopriming of seeds with microbial biostimulant (Bacillus megaterium ) on improvement of seedling growth, biochemical and root traits of rice (Oryza sativa L.)
DOI:
https://doi.org/10.14719/pst.5541Keywords:
Bacillus megaterium, biopriming, biostimulant, rice, root traits, seedling vigorAbstract
This study aimed to evaluate the potential of Bacillus megaterium in improving seed germination and rice seedling's morpho-physiological and biochemical traits. The experiment was conducted using a completely randomized design (CRD) to evaluate the effect of different concentrations of the biostimulant B. megaterium on rice seedlings growth and development under nursery conditions. Biopriming seeds with B. megaterium significantly enhanced seed germination and seedling traits, such as seedling shoot and root length, seedling height, number of leaves, seedling vigor, and shoot and root dry biomass, compared to the untreated control. Among the treatments, biopriming seeds with B. megaterium at a concentration of 10g kg-1 resulted in the greatest improvements across all the recorded parameters. Root traits such as total root length, surface area, average root diameter, root volume, and root tips and forks were also significantly enhanced. Additionally, biochemical changes like total chlorophyll and soluble protein
content showed notable improvement in B. megaterium biopriming with the concentration of 10g kg-1. Hence, these results suggest that biopriming seeds with B. megaterium are an efficient strategy to improve seed germination
and shoot and root vigor in rice seedlings.
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Copyright (c) 2024 D Vaishnavi, V Ravichandran, N Sritharan, S Anandakumar, G Prabu Kumar, MR Latha
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