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玉米杂交制种，缺少多抗性稳定的雄性不育系，只能靠人工去雄来保证种子纯度。这个困扰玉米专家多年的难题日前被山东一个农民专家攻克，不用人工去雄，也能保证种子纯度达到１００％。掌握了这个技术，今后玉米杂交制种可以跟玉米生产一样，实行大规模、机械化和集约化。据统
Maize hybrid seed production, the lack of more resistant and stable male sterile lines, only by artificial to male to ensure seed purity. The troubled corn expert puzzled over many years has recently been overcome by a farmer expert in Shandong. Without artificial removal of the male, the purity of the seeds can also be guaranteed to reach 100%. Mastered this technology, the future of hybrid corn seed production can be the same, the implementation of large-scale, mechanization and intensive. According to the system