Genetic Analysis Of Morphological And Physiological Traits Related To Drought Tolerance In Groundnut (Arachis Hypogaea L.)

📄 Project Abstract

Drought stress is one of the major constraints in groundnut producing areas of Sub-Sahara Africa as its yield is reduced by 56-85%. Mitigating this constraint requires the selection of resilient genotypes that withstand drought threats to groundnut production. The objectives of this study were to identify drought tolerant genotypes to be used for groundnut breeding program, to assess the mode of gene action controlling drought tolerance in groundnut and to determine the association of pod yield with morphological and physiological traits related to drought tolerance in groundnut. One hundred and seven (107) groundnut genotypes were screened for drought tolerance during 2018 dry season in a split-plot design arranged in a randomized complete block design under non-stress and water-stress conditions. The mean squares for the morphological and physiological traits showed a highly significant (P0.01) difference between the genotypes under water-stress and combined analysis. Based on the PC...