One of the factors that inflict drastic effects on maize growth and productivity is drought stress. The harmful effects of drought stress on many crops have been proven to mitigate molybdenum (Mo). This paper presents the results of experiments on the effects of Mo on drought tolerance at the seedling stage of three varieties of maize, namely CP333, HN45, and HN68. Two experimental formulations were used: the control group was watered (F I) and the treatment group was sprayed from sowing to the stage of two true leaves with Mo liquid 0.03 percent (F II). After that, 1-day, 3-day, and 5-day artificial drought treatment was provided by stopping watering and spraying. The results show that, compared to the control group, Mo increased the drought resistance of three maize varieties. CP333 with its drought tolerance indices of 3207.10 in F I and 3613.37 in F II was the most drought tolerant line, followed by HN45 with 2790.62 in F I and 3213.14 in F II, and HN68 with drought tolerance indices of only 2621.79 in F I and 3012.53 in F II was the least drought tolerant cultivar. In addition, Mo was also shown to have a direct effect on the drought tolerance of maize varieties. The findings of the research serve as a theoretical basis for proposals to increase the resistance of certain maize cultivars in Vietnam to drought.
Please see the link :- https://www.ikprress.org/index.php/PCBMB/article/view/5252
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