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Assessment of nodulation potential in mini-core genotypes and land races of chickpea

OAR@ICRISAT

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Relation http://oar.icrisat.org/10361/
 
Title Assessment of nodulation potential in mini-core genotypes and land races of chickpea
 
Creator Gopalakrishnan, S
Singh, M
Swarnalakshmi, K
Srinivas, V
Rathore, A
Upadhyaya, H D
Basu, P S
Chaturvedi, S K
 
Subject Chickpea
Genetics and Genomics
 
Description Symbiotic nitrogen fixation (SNF) is a sustainable
alternative for nitrogen supply for plants in agriculture.
Past efforts to enhance SNF in chickpea through inoculation
with improved rhizobia were partially successful. Hence,
there is an urgent need to identify nodulation variants among
the mini-core and races accessions of chickpea. In the present
study, a total of 211 mini-core lines, 68 land races and 3
checks were evaluated for nodulation variants under
greenhouse conditions at ICRISAT, Patancheru, India and
IIPR, Kanpur, India. The seeds of all accessions were
inoculated with IC-76, a nodulating bacteria, on both
locations. When the potting material was pasteurized, the
organic carbon had reduced from 0.49% to 0.29% whereas
no significant difference was noted in total N and available
P contents. At 45 days after sowing, the mini-core lines of
chickpea were categorized into 6 types, based on nodulation
capability (rating 0-5, where 0=no nodules; while 5 =
maximum nodules) at both ICRISAT and IIPR locations. A
direct correlation was obtained between nodule numbers
and shoot and root weights. Further, some lines were found
common at both the locations for particular category of
nodulation rating.For instance, the lines ICC-2580, ICC-
2990, ICC-3421 and RSG-888 were found fitting in rating 5
while lines ICC-6294 and ICC-9002 in rating 1. A similar
trend of nodulation variants were also found in the land
races of chickpea. A total of 35 chickpea mini-core lines and
six land races were found common for nodulation variants
at both locations.
 
Publisher Indian Society of Pulses Research and Development
 
Date 2017
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10361/1/Assessment%20of%20nodulation%20potential%20in%20mini-core%202017.pdf
Gopalakrishnan, S and Singh, M and Swarnalakshmi, K and Srinivas, V and Rathore, A and Upadhyaya, H D and Basu, P S and Chaturvedi, S K (2017) Assessment of nodulation potential in mini-core genotypes and land races of chickpea. Journal of Food Legumes, 30 (2). pp. 65-72. ISSN 0970-6380