摘要：In an effort to determine the biochemical markers for screening The obroma cacao L. for drought tolerance, changes in lipid peroxidation and activities of antioxidant enzymes were assessed in the seedlings of ten cocoa genotypes in normal and water deficit conditions. In comparison with non-stress seedlings, the catalase (CAT) and superoxide dismutase (SOD) specific activities were increased respectively by more than 88% and 82.9% in the leaves of stressed seedlings. However, peroxidase (POX) and polyphenol oxidase (PPO) specific activities were upgraded by only 9.84% and 4.7% in the leaves of stressed seedlings. The comparison of cocoa genotypes under deficit water stress conditions revealed that the genotypes, VTLCH-4, VTLCP-26 and VTLCP-22 shown effective antioxidative potential against the effects of oxidative stress. The observed data showed that status of antioxidant enzymes could provide a meaningful tool for depicting drought tolerant nature of a cocoa genotype
关键词：Antioxidant enzymes; Lipid peroxidation; Cocoa; Drought; Theobroma cacao L.
