THE EFFECT OF SYNORHIZOBIUM MELILOTI INOCULATION ON NUTRIENT UPTAKE AND GROWTH OF SESAME PLANT

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KHODABAKHSHI N.; AKHGAR A.R.; ABBASZADEH DAHAJI P.; TAJABADIPOUR A.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:5 | Issue:2 Page(s): 225-238

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Title

THE EFFECT OF SYNORHIZOBIUM MELILOTI INOCULATION ON NUTRIENT UPTAKE AND GROWTH OF SESAME PLANT

Author(s)

KHODABAKHSHI N. | AKHGAR A.R. | ABBASZADEH DAHAJI P. | TAJABADIPOUR A. | Issue Writer Certificate

Keywords

AUXINQ2

SIDEROPHOREQ2

GROWTH INDEXESQ2

PLANT GROWTH PROMOTING RHIZOBACTERIAQ2

Abstract

Background and Objectives: Sesame (Sesamum indicum L.) is an annual plant, from monocotyledons and Gamopetalous order and Pedaliaceae family. Sesame is a valuable oil seed which has 45 up to 62 percentage of oil due to the condition and variety. This oil is so durable because of a phenolic antioxidant compound called Sesamol. Rhizobium bacteria like PLANT GROWTH PROMOTING RHIZOBACTERIA are capable of improving and increasing non-legume plant growth and yield through growth promoting mechanisms like Indole-3-acetic acid hormone production, SIDEROPHORE production and also increase of the solubility and uptake of nutrients, particularly phosphorus. Therefore, the present study was performed to evaluate some of the plant growth promoting characteristics of Synorhizobium meliloti bacteria and assess their ability to increase the growth and improve the nutritional condition of sesame as a non-legume plant.Material and Method: A greenhouse experiment was conducted in order to evaluate the effect of some of Synorhizobium meliloti isolates on growth and nutrients uptake in sesame. Firstly, all of the isolates were examined for IAA and SIDEROPHORE production and their ability to dissolve insoluble mineral phosphates. Then, 5 superior isolates based on IAA and SIDEROPHORE production and also solubilization of insoluble mineral phosphates were selected and used with a control treatment in a completely randomized design with four replications. Several sesame seeds of same size were selected and then surface sterilized for greenhouse experiment. The five Kg plastic pots were filled with sandy loam non-sterile soil with low salinity (EC=1.4 dS.m-1) and low available phosphorus (5 mg.kg-1).15 sesame seeds were planted in each pot. The seeds were inoculated with 500 mL of bacterial suspension (population: 108cfu.g-1) after cultivation.The plants were cut from the crown and the length, shoot and root dry weight were measured in blooming phase. The phosphorus, iron, zinc and copper concentration were then determined in shoot.Results: The results related to dissolution of mineral phosphorus showed that all of the isolates had the ability to solubilize Tricalcium Phosphate in sperber medium and the highest phosphorus solubilization was related to SR18 isolate (139 mg.ml-1). Also isolates SR3 and SR32 produced the highest amount of SIDEROPHORE. The results of greenhouse experiment demonstrated that the tested isolates could increase sesame shoot dry weight compared to the control. This augmentation was significant in SR3, SR16 and SR18. Most of the tested isolates also could increase nutrient uptake in sesame shoot but the only isolate which could significantly increase shoot nutrient uptake including P, Zn, Cu and Fe in comparison with control was SR18.Conclusion: To summarize, the selected isolates which could produce IAA, SIDEROPHORE and solubilize poorly soluble inorganic phosphates had the ability to raise sesame growth factors (shoot and root). Among all of the isolates, SR18 was the most effective on growth factors and nutrient uptake in sesame.

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APA: Copy

KHODABAKHSHI, N., AKHGAR, A.R., ABBASZADEH DAHAJI, P., & TAJABADIPOUR, A.. (2015). THE EFFECT OF SYNORHIZOBIUM MELILOTI INOCULATION ON NUTRIENT UPTAKE AND GROWTH OF SESAME PLANT. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(2), 225-238. SID. https://sid.ir/paper/209949/en

Vancouver: Copy

KHODABAKHSHI N., AKHGAR A.R., ABBASZADEH DAHAJI P., TAJABADIPOUR A.. THE EFFECT OF SYNORHIZOBIUM MELILOTI INOCULATION ON NUTRIENT UPTAKE AND GROWTH OF SESAME PLANT. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;5(2):225-238. Available from: https://sid.ir/paper/209949/en

IEEE: Copy

N. KHODABAKHSHI, A.R. AKHGAR, P. ABBASZADEH DAHAJI, and A. TAJABADIPOUR, “THE EFFECT OF SYNORHIZOBIUM MELILOTI INOCULATION ON NUTRIENT UPTAKE AND GROWTH OF SESAME PLANT,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 5, no. 2, pp. 225–238, 2015, [Online]. Available: https://sid.ir/paper/209949/en

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