THE EFFECT OF HEAT AND SALINITY STRESS ON THE CONTENT PROLINE AND HYDROGEN PEROXIDE IN LEAVES OF COTTON PLANT
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Maftuna Toshmurodova, Karomat Kuldoshova, Sherali Qo’ziyev
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This study investigated the effect of high temperature and salt stress on proline and hydrogen peroxide (H2O2) accumulation in the leaves of cotton (Gossypium barbadense L.) variety Surxon-103. Exposure to elevated temperature led to a significant increase in proline content and H2O2 levels, indicating the activation of stress-related biochemical responses. Although chloride and sulfate salinity increased H₂O₂ content, proline levels remained relatively stable. In contrast, carbonate salinity acted as the most severe stress factor, characterized by a maximal increase in H₂O₂ and a pronounced decrease in proline content. The results suggest that these parameters can be used as important indicators of heat and salt stress tolerance in cotton plants.
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Authors
Maftuna Toshmurodova, Karomat Kuldoshova, Sherali Qo’ziyev
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References:
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