• 1. Good varieties: 优良品种
• 2. good varieties selection: 良种选用
• 3. rate of good varieties: 良种率

更多释义

• 1.The experimental results indicated the yield of intervarietal hybrids from geographical distance and good varieties would raise 10% than their parents.
  选择地理远缘、优良的爆裂玉米品种进行杂交可以获得超过优良亲本（综合种）产量10％左右的杂交种。
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• 2.The genetic correlation of main characters of 10 sweet potato varieties was studied by the path analysis to provide good varieties for breeding of sweet potato in Guizhou.
  为提供甘薯育种优良材料，对贵州10个甘薯品种进行了农艺性状的遗传相关和通径分析。
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• 3.The combination of chemical and DNA fingerprints is constructive to quality control of Chinese materia medica, the cultivar identification and the selective breed of good varieties for medicinal use.
  基因指纹与化学指纹相结合，对于中药的品种鉴定、质量评价、药用优良品种的选育都具有重要的意义。
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