Evaluation of groundnut genotypes for heat tolerance

Chauhan, Y S and Senboku , T (1997) Evaluation of groundnut genotypes for heat tolerance. Annals of Applied Biology, 131 (3). pp. 481-489. ISSN 0003-4746

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Abstract

To determine appropriate heat-hardening treatments, 1-month-old plants of groundnuts cv. ICGV 86707 and Chico were conditioned at 30°C (non-hardening temperature) for 1-4 days, followed by 1 or 3 days at 37°C (hardening temperature) and 0 or 1 day at 30°C. Heat injury was assessed through measurements of electrolyte leakage after stressing leaf discs to 55°C for 15 min. Heat injury was lowest in treatments without a return to 30°C, and was lower in ICGV 86707 than Chico. Assessment of heat tolerance of heat-stressed leaf discs of hardened and non-hardened plants of these 2 cultivars and ICGV 86635, ICGV 87358, TMV 2 and JL 24 by measurement of electrolyte leakage and chlorophyll fluorescence showed a close correlation between the 2 methods, suggesting that chlorophyll fluorescence may provide an alternative means of screening for heat tolerance

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Uncontrolled Keywords: Arachis hypogaea L, peanut, chlorophyll concentration, chlorophyll fluorescence, electrolyte leakage, heat hardening
Subjects: Mandate crops > Groundnut
Others > Genetics and Genomics
Depositing User: Mr B K Murthy
Date Deposited: 29 Aug 2013 05:37
Last Modified: 29 Aug 2013 05:37
URI: http://oar.icrisat.org/id/eprint/7007
Official URL: http://dx.doi.org/10.1111/j.1744-7348.1997.tb05175...
Projects: UNSPECIFIED
Funders: Japan International Research Center For Agricultural Sciences, Government of Japan- Ministry of Agriculture Forestry and Fisheries
Acknowledgement: SNNigam Collection
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