PJB-2022-337
EFFECT OF DIFFERENT STRAINS OF PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) ON GARLIC GROWTH AND PHYSIOLOGY
SHIZA TARIQ
Abstract
Garlic is one of the most important medicinal herb. Both its leaves as well as bulb are edible. Present investigation was aimed to evaluate the role of plant growth promoting rhizobacteria (PGPR) on garlic (Allium sativum L.) growth and biochemical contents. Garlics cloves were inoculated with plant growth promoting rhizobacteria (PGPR), Pseudomonas putida (KX574857), Pseudomonas stutzeri (Kx574858) and Bacillus cereus (ATCC14579@ 108 cells /ml prior to sowing. Seedlings were grown under natural conditions in the net house of Wah University. PGPR significantly enhanced % germination, leaf and root growth and their biomass also increased the bulb diameter and fresh and dry weight. The flavonoids, phenolics, chlorophyll, protein and sugar content were also significantly increased due to PGPR inoculation. P. stutzeri was found most effective for production of longer leaves with moderate sugar and high flavonoids and phenolics contents. P.putida showed maximum increase in bulb diameter, bulb biomass with maximum phenolics and flavonoids contents.
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