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Effect of plant growth-promoting Streptomyces sp. on growth promotion and grain yield in chickpea (Cicer arietinum L)

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Relation http://oar.icrisat.org/8558/
http://dx.doi.org/10.1007/s13205-015-0283-8
10.1007/s13205-015-0283-8
 
Title Effect of plant growth-promoting Streptomyces sp. on growth
promotion and grain yield in chickpea (Cicer arietinum L)
 
Creator Gopalakrishnan, S
Srinivas, V
Alekhya, G
Prakash, B
 
Subject Chickpea
 
Description The physiological and molecular responses of
six strains of Streptomyces sp. (CAI-13, CAI-85, CAI-93,
CAI-140, CAI-155 and KAI-180), with their proven potential
for plant growth-promotion (PGP) in rice were
studied to understand the mechanisms causing the beneficial
effects. In this investigation, those six strains were
evaluated for their PGP capabilities in chickpea in the
2012–13 and 2013–14 post-rainy seasons. All of the
Streptomyces sp. strains exhibited enhanced nodule number,
nodule weight, root weight and shoot weight at
30 days after sowing (DAS) and pod number, pod weight,
leaf area, leaf weight and stem weight at 60 DAS in both
seasons over the un-inoculated control. At chickpea crop
maturity, the Streptomyces strains had enhanced stover
yield, grain yield, total dry matter, pod weight, seed
number and seed weight in both seasons over the uninoculated
control. In the rhizosphere, at crop maturity, the
Streptomyces strains also significantly enhanced soil biological and mineral nutrient traits including microbial
biomass carbon, dehydrogenase activity, total nitrogen,
available phosphorous and organic carbon in both seasons
over the un-inoculated control. Of the six strains of
Streptomyces sp., CAI-85, CAI-93 and KAI-180 were
found superior to CAI-155, CAI-140 and CAI-13, in terms
of their effects on root and shoot development, nodule
formation and crop productivity. Scanning electron microscopy had revealed the success in colonization of the chickpea roots by all six strains. This investigation further confirms the broad-spectrum of PGP activities by the selected Streptomyces sp.
 
Publisher Springer
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/8558/1/3%20Biotech_2015.pdf
Gopalakrishnan, S and Srinivas, V and Alekhya, G and Prakash, B (2015) Effect of plant growth-promoting Streptomyces sp. on growth promotion and grain yield in chickpea (Cicer arietinum L). 3 Biotech. pp. 1-8. ISSN 2190-572X