Enhancement of Growth and Yield of Rice (Oryza Sativa) by Plant Probiotic Endophyte,Lysinibacillus sphaericus under Greenhouse Conditions |
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| Authors: | Shabanamol S Edna Mary Varghese Meenu Thampi Karthika S Sreekumar J |
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| Institution: | 1. School of Biosciences, M G University , Kottayam, India;2. Department of Microbiology, SAFI Institute of Advanced Studies(SIAS) , Malappuram, India;3. School of Biosciences, M G University , Kottayam, India;4. Division of Social Sciences, Central Tuber Crops Research Institute , Trivandrum, India |
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| Abstract: | ABSTRACT Nitrogen (N) is the “prime” among the three major nutrients required for plant growth. The large potential demand of nitrogen for plant growth is mainly achieved through biological nitrogen fixation. We have attempted to study the growth enhancement of rice crop under greenhouse conditions using the endophytic diazotrophic bacteria Lysinibacillus sphaericus. The effect of inoculation of L. sphaericus on yield and nutrient uptake was studied. All the parameters studied showed significantly higher values than that obtained in uninoculated absolute control. The highest yield was given by treatment T7 (seed and foliar) followed by T9 (soil and foliar) and T5 (seed and soil) and were statistically at par. The highest dry weight of grains was found to be in treatment T2 (13.0 g?1plant) which received soil treatment of L. sphaericus followed by T9 (12.2 g?1plant) which received combined application of L. sphaericus as soil and foliar treatment. It can be deduced from the results, there is a high influence of endophytic bacteria L. sphaericus in plant growth despite the mode of inoculation. This establishes the potential of diazotrophic endophyte L. sphaericus to limit the use of industrial N fertilizers thereby enhancing the fertility of the soil. |
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| Keywords: | Biological nitrogen fixation endophyte growth enhancement N uptake diazotrophic bacteria greenhouse conditions |
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