种子纯度是品种在特征特性方面典型一致的程度，用本品种的种子数占供检本作物样品种子数的百分率表示。
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这两种方法不仅节约成本，且简单快速，大大降低了DNA的提取难度，适宜黄瓜杂交种子纯度鉴定。
Being simple and rapid, two methods could reduce the cost and make extraction of DNA very easily; thus they were suitable for the purity identification of Cucumber hybrid seeds.
结合采用SSR分子标记技术，此DNA提取方法可有效地用于玉米种子纯度检验和分子标记辅助育种。
With adoption of SSR mark technology, the DNA extraction method can be effectively employed in seed purity analysis and marker aided breeding activity.
对辣椒黄绿苗突变体的隐性叶色标记技术在纯度鉴定，提高杂交种子纯度以及在辣椒雄性不育中的作用及应用前景进行了探讨。
The leaf color mark technology of yellow-green seedling mutant is discussed in the function of purity identification, hybrid seed purity improvement and male sterility in hot pepper.
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