Interactive Effect of Phosphorus Fertilization and Rhizobial Inoculation on Symbiotic and Growth Potential of Selected Chickpea Cultivars

Swarnalakshmi, K and Gopalakrishnan, S and Singh, M and Pooniya, V and Srinivas, V and Chaturvedi, S K (2017) Interactive Effect of Phosphorus Fertilization and Rhizobial Inoculation on Symbiotic and Growth Potential of Selected Chickpea Cultivars. Seed Research, 45 (2). pp. 111-118. ISSN 0379-5594

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Abstract

The main aim of this study was to evaluate the effect of rhizobia and di-ammonium phosphate (DAP) on nodulation and plant growth-promotion (PGP) traits of chickpea cultivars under field conditions at IARI, New Delhi and ICRISAT, Patancheru during the Rabi season of 2014-15. Two chickpea cultivars, JAKI 9218 and Shubhra, were used in common by both the institutes, while the third cultivar varied; IARI used PUSA 372, whereas ICRISAT used JG11, popular variety of the respective locations. The seeds were subjected to four treatments, including T1 = positive control (only DAP); T2 = only rhizobia; T3 = rhizobia and DAP; and T4 = absolute control (no rhizobia and DAP). Manual planting was done in split plot design with three replications. Observations, including nodule number, nodule weight, shoot weight, root weight, pod weight, pod number, grain yield, stover yield, N and P uptake from shoots were recorded. Seed inoculation with rhizobia (T2 and T3) significantly enhanced nodulation and growth over un-inoculated controls (T1 and T4) at both IARI and ICRISAT locations. Among T2 and T3, nodule weight observed was more in T3 than T2 at both IARI and ICRISAT locations, except in case of one cultivar (Subhra) at ICRISAT where T2 was significantly higher than T3.Among the cultivars, Subhra was found to be more compatible to rhizobial strains used in this study than the other two cultivars at both the locations. At crop maturity stage, data were collected only at ICRISAT location due to hostile weather conditions at IARI. At ICRISAT, T3 recorded significantly higher shoot weight (up to 25%), pod weight (up to 37%), pod number (up to 16%), grain yield (up to 25%), stover yield (up to 8%) and P uptake (up to 10%) over T4, the absolute control. It can be concluded that rhizobial strains in combination with DAP supports not only nodulation potential of chickpea but also its PGP traits.

Item Type:	Article
Divisions:	Research Program : Asia
CRP:	CGIAR Research Program on Grain Legumes
Uncontrolled Keywords:	Chickpea Cultivars; P fertilization; Plant growth-promotion, Rhizobial inoculation; Symbiotic nitrogen fixation
Subjects:	Mandate crops > Chickpea Others > Fertilizer Applications Others > Plant Growth
Depositing User:	Mr Ramesh K
Date Deposited:	27 Mar 2018 08:01
Last Modified:	27 Mar 2018 08:01
URI:	http://oar.icrisat.org/id/eprint/10505
Official URL:
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	ICRISAT is a member of CGIAR Consortium and this work has been undertaken as part of the CGIAR Research Program on Grain Legumes. We also thank Mr. PVS Prasad for his significant contribution in the laboratory and field studies.
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