Identification of drought tolerant entries based on stress tolerant indices and physiological traits in RIL population of cotton (Gossypium hirsutum)

The present investigation was taken up in a recombinant inbred population of cotton at advanced stage (F10) derived from the cross MCU 5 x TCH 1218 in order to identify drought tolerance lines based on stress tolerant indices and physiological traits. To achieve these objectives, 220 recombinant inbred lines, parents and check KC3 were evaluated across two locations viz., Coimbatore and Aruppukottai in a randomized block design with two replications during Kharif 2018 and stress tolerant indices were estimated from single plant yield under both locations while physiological traits were recorded at rainfed condition alone.