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杂交玉米种子纯度高,是优质种子的首要指标,也是充分发挥杂种优势,保证玉米优质高产的重要因素。但是,根据国家和我省前几年玉米种子质量抽检结果分析,种子净度、发芽率和水分三项指标的达标率高,而纯度指标的达标率普遍偏低,成为影响玉米种子质量全面达标的制约因素。所以,采取措施不断提高玉米种子纯度,仍是全省种子行业面临的重要课题,需要认真做好。
The high purity of hybrid corn seeds is the most important indicator of high-quality seeds. It is also an important factor that gives full play to heterosis and ensures high-quality and high-yield corn. However, according to the sampling results of corn seed quality in our country and our province in previous years, the compliance rate of the three indexes of seed purity, germination rate and water content is high, but the compliance rate of purity index is generally low, which has become the overall standard of affecting the seed quality of corn Constraints. Therefore, to take measures to continuously improve the purity of corn seeds is still an important issue facing the province’s seed industry, need to do a good job.