Observational analysis highlights biochemical changes in pearl millet under high temperature, suggesting potential for breeding stress-resistant genotypes.
The biochemical and physiological changes due to high temperature were observed in twelve genotypes of pearl millet (Pennisetum glaucum (L.) R. Br.). The 20-day-old seedlings were exposed to temperatures of 40 °C for 6 hrs, 44 °C for 4 hrs, and 46 °C for 2 hrs in a BOD incubator. Data on chlorophyll content, activity of antioxidative enzymes and MSI were recorded after two days of treatment. The genotypes HTP94/54, J-2588, and PPMI 1263 performed better, having high activity of antioxidative enzymes. These genotypes can be used in breeding programs to develop high-temperature stress tolerance.
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Meena et al. (2025) studied this question.
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