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1)  selection of good tree seeds
选良种
2)  genetic improvement
良种选育
1.
Based on analysis on status and trends of genetic improvement in oiltea,some suggestions were brought forward which new technology breeding in oiltea should be researched,for example,mutation bre.
自20世纪中叶开展油茶良种选育工作以来,我国先后选育出优良农家品种、优良家系、优良无性系和优良杂交组合等油茶良种200多个,结合油茶更新与低产林改造,推广应用良种,使油茶单位面积产量得到大幅度增长。
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3)  selecting and breeding
良种选育
1.
Genetic diversity and improved varieties selecting and breeding in Star anise in China are analyzed,and improvement approaches are put forward.
就我国八角的遗传多样性与良种选育进行了分析,并提出了今后我国八角良种遗传改良的方向。
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4)  Breeding [英]['bri:dɪŋ]  [美]['bridɪŋ]
良种选育
1.
Advances in sweetpotato breeding in Fujian and its prospects;
福建甘薯良种选育成就与展望
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5)  fine colones
良种筛选
6)  good varieties selection
良种选用
1.
A study about plant structure regulation, good varieties selection, droughtresistant sowing, model cultivation covered with plastic film, rainfall collection and high efficient supplementary irrigation has been done, the measures of decreasing lose of.
针对半干旱区水土流失严重、土地旱薄相连产出低、经济发展缓慢较贫困的突出问题,紧紧围绕降水资源的高效开发利用,从种植业结构调整、良种选用、抗旱播种、地膜覆盖规范化栽培、集雨高效补灌等方面入手,展开研究,提出了该区旱年减灾增产措施。
补充资料：选良
1.选择优秀的人才。 2.指挑选出来的优秀人才。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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