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黑玉米后期早衰现象是影响其增产潜力的突出问题。据实践，用叶酸处理黑玉米种子，可有效地增强黑玉米后期的抗早衰性能，使黑玉米增产１０％以上。叶酸是研究人员根据作物杂种优势的遗传理论及生物化学调控技术，先后从医用西药、中草药中筛选促进ＤＮＡ和ＲＮＡ合成的药物，
The phenomenon of premature aging in black corn is a prominent issue that affects its potential for increasing yield. According to practice, treatment of black corn seeds with folic acid can effectively enhance the anti-premature aging performance of black corn and increase the yield of black corn by more than 10%. Folic acid is a researcher based on the hereditary theory of crop heterosis and biochemical regulation technology, successively from the medical Western medicine, Chinese herbal medicine screening to promote DNA and RNA synthesis of drugs,