Using this technology, the purity problem during seed production in three-line, two-line or chemical-emasculated hybrid rice breeding system could be solved and some new combinations could be bred.

利用这项技术可望解决三系、两系或化学杀雄杂交稻制种过程中出现的纯度问题，且有利于新杂交稻组合的选育。

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With adoption of SSR mark technology, the DNA extraction method can be effectively employed in seed purity analysis and marker aided breeding activity.

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。

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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.

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。

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In the specific case of maize, to ensure that seed stocks achieve 99.9% purity, a separation distance of 200 metres is required from any source of "contaminating" maize pollen.

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