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玉米是重要的粮食作物、饲料作物,同时也是重要的经济作物。种植面积和总产量仅次于小麦和水稻,居世界谷物第三位,单产居谷类作物之首,在农业生产过程中,具有举足轻重的作用。玉米种子质量问题是农业生产中的一大突出问题,因此玉米亲本种子质量的高低,不仅决定着玉米杂交种子质量、玉米产量的高低,而且影响着我国玉米生产的可持续发展,决定着我国的粮食安全和国计民生的大问题。
Corn is an important food crop, feed crop and also an important cash crop. The planted area and total output are second only to wheat and rice, ranking the third in the world cereal. The yield per unit is the highest in cereal crops and plays a decisive role in agricultural production. Therefore, the quality of maize parental seeds not only determines the quality of maize hybrid seeds and the yield of maize, but also affects the sustainable development of maize production in China, which determines the quality of maize Food security and the national economy and people’s livelihood.