Drought Tolerant Compact Genotypes of Cotton (Gossypium hirsutum L.) for Varied Agro-ecosystem ....

Cotton (Gossypium hirsutum L.), although being an annual crop with an unpredictable growth habit, is naturally adaptable to dry spells, thanks to its wild progenitors. Climate change has a negative impact on cotton growth and development because vegetative and reproductive growth occur at the same time. This has a negative impact on yield and fibre quality. Cotton development that is more adapted to soil moisture stress is critical for long-term production sustainability. In cotton breeding for rainfed cotton ecologies, improving drought resistance during the reproductive period is a top priority. Drought tolerance mechanisms have been studied extensively, as well as the qualities associated with drought tolerance. Plant growth parameters such as plant height, number of leaves, number of squares, number of green bolls, and number of bursted bolls were observed, and cultures DTS 402, DTS 404, DTS 405, DTS 407, DTS 408, DTS 410, DTS 418, DTS 419, and LRA 5166 showed no reduction in these parameters. DTS 402 was the most tolerant culture, showing the least reduction in seed cotton yield (-26.76 percent)

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