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“延单 1 9”是 1 992年延边农科院旱田研究所杂交育成的早熟高产多抗优质的玉米杂交种 ,于 1 999年 3月经吉林省农作物品种审定委员会审定通过为今后早熟区推广品种
“Delayed 1 9” is a hybrid early maturing, high-yield, multi-resistant and high-quality corn hybrid produced by the Institute of Dryland Science, Yanbian Academy of Agricultural Sciences in 1992. It was approved by Jilin Crop Variety Approval Committee in March 1999 to promote the cultivation of varieties