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

OAR@ICRISAT

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Relation http://oar.icrisat.org/10505/
 
Title Interactive Effect of Phosphorus Fertilization and Rhizobial Inoculation on Symbiotic and Growth Potential of Selected Chickpea Cultivars
 
Creator Swarnalakshmi, K
Gopalakrishnan, S
Singh, M
Pooniya, V
Srinivas, V
Chaturvedi, S K
 
Subject Chickpea
Fertilizer Applications
Plant Growth
 
Description 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.
 
Publisher Connect Journals
 
Date 2017-12
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10505/1/Swarnalakshmi%20et%20al%202017.pdf
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