EVALUATING SALT TOLERANCE OF SOME ELITE RICE VARIETES IN THE COASTAL REGIONS OF NAM DINH PROVINCE

Climate change causes serious impacts on agricultural production, especially on rice production in Vietnam. Sea level rise threads to reduce rice productivity and farmer living in Red River Delta and Mekong River Delta due to salt water intrusion which salinizes water irrigation and soil cultivation. To response effectively to negative impacts of climate change, this study was conducted to evaluate the salt tolerant capacity of promising rice varieties which are able to adapt to conditions in coastal regions in Nam Dinh province of the Red River Delta in Vietnam. Two potential rice varieties named TX111 and M15, which not only had high yield, good quality (yields of TX111 and M15 in spring were 8.02 tons/ha and 7.41 tons/ha, respectively; in summer, yield of TX111 was 5.91 tons/ha, and yield of M15 was 4.42 tons/ha), but also high tolerance to salinity levels in the conditions of Red River Delta were selected.