EFFECT OF FLUORIDE ON GERMINATION, EARLY GROWTH AND ANTIOXIDANT ENZYMES ACTIVITY OF WHEAT CULTIVARS IN BANGLADESH

Abstract

In many nations, including Bangladesh, high salinity is a significant barrier to the yield of wheat. Here, we investigated the impacts of NaF toxicity on twelve local wheat cultivars during the germination and root growth phases by examining agronomical, physiological and biochemical responses to pinpoint the salinity-tolerance traits among the divergent genotypes. Based on stress indicators (Chlorophyll and proline values) and salt tolerance indices of plant growth-related and yield-contributing parameters, BARI Gom 25, BARI Gom 28, BARI Gom 33, WMRI 1 and WMRI 2, WMRI 3 were best performed in salt stress condition at the conclusion of the study, while the other five varieties such as BARI Gom 26, BARI Gom 27, BARI Gom 29, BARI Gom 30, BARI Gom 31, BARI Gom 32 were identified as moderately performed in NaF stress condition. The best performed types of cultivars had lower levels of hydrogen per oxide and malondialdehyde buildup and have higher activity of the antioxidant enzymes catalase, peroxidase, and ascorbate peroxide than the moderate performed varieties in salt stress condition. Our research suggests that higher proline levels and less oxidative damage are related to do perform good in salt stress condition for maintain optimal growth and productivity in wheat. Additionally, present findings indicated of the cultivars BARI Gom 25, BARI Gom 28, BARI Gom 33, WMRI 1, WMRI 2, and WMRI 3 could be recommended as suitable cultivars for cultivation in fluoride prone area in Bangladesh and the diverse genotypes that respond differently to NaF can be used as valuable genetic resources in breeding and the analysis of the molecular processes that underlie wheat adaptation to high salinity.