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提高杂交水稻种子纯度的措施叶大文（寿宁县种子公司３５５５００）种子纯度是种子典型一致的程度，是种子质量的重要指标之一。提高杂交稻种子纯度，使其达到国家标准（一级种纯度９８％，二级种纯度９６％），是提高杂交水稻大田产量的关键。笔者经近几年实践认为，提高...
Measures to improve the seed purity of hybrid rice Ye Dawen (Shouning County Seed Company 355500) Seed purity is a typical degree of seeds and is an important indicator of seed quality. Improving the purity of hybrid rice seeds to meet the national standards (98% of first grade purity and 96% of second grade purity) is the key to improve the yield of hybrid rice field. In recent years, I believe that practice, improve ...