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The Effectiveness of Phosphate Solvent Rhizosphere Bacteria in Stimulating the Growth of Rice Plants
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| Author:
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A HERWATI, B PATANDJENGI, M JAYADI, MASNIAWATI, A YANI
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| Abstract:
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Phosphate is a macronutrient that is needed in plant growth. Rhizosphere bacteria are very helpful in the availability of phosphate in the soil. Phosphate solvent microbes including soil microorganisms that can release P bonds can also dissolve phosphate so that it is available for plant growth and development. This study aims to obtain phosphate solvent rhizosphere bacteria that have the potential to spur plant growth. Bacteria were isolated through dilution. Bacterial isolation results obtained 40 bacterial isolates that can grow on nutrient agar medium. From the morphological characterization, eighteen isolates were obtained with different morphological characteristics. Rhizosphere bacteria isolates can dissolve phosphate in pikovskayas media, produce clear zones around bacterial colonies, and have high concentrations of phosphate dissolution. The results of the phosphate dissolution test were selected by five bacterial isolates tested on rice seeds, namely AHR11MS, AHR15MS, AHR2LS, AHR3LS, AHR4KS, and AHR7KS. AHR15MS isolates had a significant effect on root length of 14.44 cm and a plant dry weight of 3.01 grams compared to controls with a root length of 8.75 cm and a dry weight of 1.03 cm. In conclusion, AHR15MS isolates have the potential to stimulate rice plant growth.
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| Keyword:
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phosphate, rhizosphere, bacteria
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2021.13.01.613
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| Download:
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