Evaluation of chickpea genotypes for heat stress under partially controlled condition (Elevated temperature) in polybags

Abstract

The polybag experiment was set up during 2017 at Main Agriculture Research Station, UAS, Dharwad to screen heat stress tolerant chickpea genotypes viz., Annigeri-1 (G1), JG-11 (G2), JG-14 (G3), Jaki-9218 (G4) and KAK-2 (G5) were evaluated for heat stress. The genotypes were subjected to two different conditions like partial elevated temperature (C2 - stress) and were ambient condition (C1 - control) by creating polythene structure. The genotypes were screened for root length, shoot length, root dry weight, shoot dry weight and root to shoot ratio. The shoot length, shoot dry weight and root dry weight were affected under partial elevated temperature condition than ambient condition but root length and root to shoot ratio was found higher in the partial elevated temperature condition as compared to ambient. The genotype which found tolerant to the heat stress under partial elevated condition was JG-14 than JG-11, Jaki-9218, Annigeri-1 and KAK-2 which were found as moderately tolerant genotypes.