The effect of drought stress on physiological responses of maize plants
DOI:
https://doi.org/10.59463/0wemrz48Keywords:
drought, corn, proline,chlorophyllAbstract
Drought is one of the main consequences of climate change and negatively affects plant growth and development, resulting in reduced yield. The objective of this study was to investigate the effects of the physiological responses to drought in some maize corn hybrids. The tested maize hybrids were physiologically and biochemically evaluated and the following parameters were monitored: germination stage, chlorophyll content, and proline content in leaves. These analyses highlight the hybrid stress response. The lowest average germination percentage (26.8056%) was observed in the medium supplemented with 190 g/l PEG. Osmotic stress had a very significant negative influence on chlorophyll accumulation in the tested hybrids. The highest proline content was recorded in the Kashmir and P9398 hybrids, indicating their enhanced osmotic adjustment capacity under stress conditions. The superior performance of certain hybrids (Kashmir for proline, P9911 for chlorophyll and germination) could be leveraged in breeding programs aimed at improving stress resistance.
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