Gangappa, E. and Ravi, K. and Kumar, G.N.V.
(2006)
Evaluation of groundnut (Arachis hypogaea L.) genotypes for
temperature tolerance based on Temperature Induction Response(TIR) technique.
Indian Journal of Genetics and Plant Breeding, 66 (2).
pp. 127-130.
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Abstract
Thirty-two selected groundnut (Arachis hypogaea L.)
genotypes were evaluated for temperature tolerance
employing a new technique called Temperature Induction
Response (TIR) technique, where two days old seedlings
were exposed to gradual increase of temperature from
35° to 55°C for a specific time and finally subjected to
the lethal temperature. The genotypes showing maximum
survivability at 55°C and growth were considered to be
temperature tolerant and those, which showed less or no
survivability and recovery growth were considered to be
temperature susceptible. The results of this study revealed
a significant genetic variability among the genotypes for
temperature tolerance. By using this technique, genotypes
like K-134, K-1240, TNAU-325, JL-24 were identified as
temperature tolerant and AK-159, VG-9711, TNAU-284.,and
JSSP-15 as temperature susceptible genotypes.
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