INVESTIGATING THE ROLE OF PLANT GROWTH PROMOTING RHIZOBACTERIA ON CONCENTRATION OF SOME NUTRIENT ELEMENTS UNDER IRRIGATION WITH SALINE WATER IN RICE (ORYZA SATIVA L.)

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RAJABI AGEREH S.; BAHMANYAR M.A.; KHAVAZI K.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:5 | Issue:3 Page(s): 177-190

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Title

INVESTIGATING THE ROLE OF PLANT GROWTH PROMOTING RHIZOBACTERIA ON CONCENTRATION OF SOME NUTRIENT ELEMENTS UNDER IRRIGATION WITH SALINE WATER IN RICE (ORYZA SATIVA L.)

Author(s)

RAJABI AGEREH S. | BAHMANYAR M.A. | KHAVAZI K. | Issue Writer Certificate

Keywords

RICEQ2

SALINITYQ1

NUTRITION ELEMENTSQ2

FLUORESCENT PSEUDOMONADSQ2

Abstract

Background and Objectives: Soil and water SALINITY are the major limiting factors for plant growth and crop production. Water and soil SALINITY almost limit plant growth through increasing osmotic pressure, specific toxicity of some ions such as sodium and color and nutritional imbalance. In addition, SALINITY stress reduces root and plant growth via increasing hormone level. One of the strategies to deal with SALINITY is inoculation of seeds with plant growth-promoting rhizobacteria (PGPR).Materials and Methods: The efficiency of four strains of FLUORESCENT PSEUDOMONADS was determined in view of the concentration of nutrients nitrogen, phosphorous and potassium in RICE under irrigation with saline water. In this research, a pot experiment was carried out as factorial experiment in a completely randomized design with four replicates. Treatments included five levels of saline irrigation water (700, 1400, 2800, 4200 and 5600 ms/cm from sea water source) and four inoculations (P. putida 4, P. putida 11, P. putida 108 and P. fluorescens 169) and control. RICE was transplanted in pots after they were inoculated with desired strains.During growing period, the pots were irrigated with treatment of SALINITY up to saturation point.In the flowering stage, flag leaf samples were collected to determine nitrogen, phosphorus and potassium concentration. The amounts of nutrients in seed samples were determined after RICE harvesting.Results: Results showed that the maximum nutrient concentration measured in leaf and seed of RICE were observed in SALINITY 700 ms/cm and increase in SALINITY level led to decrease in nutrient concentration in the leaf and seed significantly (P<0.01). Inoculation with test strains, on the other hand, led to increase in nutrient concentration. Results also indicated that interactions between bacteria and SALINITY significantly raised nitrogen and phosphorous level in the RICE leaf and seed (at P<0.01). There were no significant differences between strains in N content of leaf at all SALINITY levels.Conclusion: Inoculation of RICE with various strains of bacteria FLUORESCENT PSEUDOMONADS and putidaaffected the concentration of nutrients under irrigation with saline water in RICE and caused to increase these elements more than control. Therefore, in saline conditions, strains of Fluorescent Pseudomonas can be used as growth promoting bacteria of RICE plant.

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APA: Copy

RAJABI AGEREH, S., BAHMANYAR, M.A., & KHAVAZI, K.. (2015). INVESTIGATING THE ROLE OF PLANT GROWTH PROMOTING RHIZOBACTERIA ON CONCENTRATION OF SOME NUTRIENT ELEMENTS UNDER IRRIGATION WITH SALINE WATER IN RICE (ORYZA SATIVA L.). ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(3), 177-190. SID. https://sid.ir/paper/209806/en

Vancouver: Copy

RAJABI AGEREH S., BAHMANYAR M.A., KHAVAZI K.. INVESTIGATING THE ROLE OF PLANT GROWTH PROMOTING RHIZOBACTERIA ON CONCENTRATION OF SOME NUTRIENT ELEMENTS UNDER IRRIGATION WITH SALINE WATER IN RICE (ORYZA SATIVA L.). ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;5(3):177-190. Available from: https://sid.ir/paper/209806/en

IEEE: Copy

S. RAJABI AGEREH, M.A. BAHMANYAR, and K. KHAVAZI, “INVESTIGATING THE ROLE OF PLANT GROWTH PROMOTING RHIZOBACTERIA ON CONCENTRATION OF SOME NUTRIENT ELEMENTS UNDER IRRIGATION WITH SALINE WATER IN RICE (ORYZA SATIVA L.),” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 5, no. 3, pp. 177–190, 2015, [Online]. Available: https://sid.ir/paper/209806/en

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