精选树(elite tree):通过遗传测定,证实是基因型优良、配合力良好的优树。家系:由单株树木上生产的自由授粉子代,或由双亲控制授粉产生的子代,统称家系...
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elite tree selection 优株筛选
filial generation of elite tree 优树子代
propagation of elite tree species 林木良种繁育
Elite nut tree 坚果型优树
tree elite seed 林木良种
To achieve these goals, genetically-elite families, clones and hybrids produced by tree improvement and biotechnology programs will be planted and managed with intensive silvicultural systems.
为了完成这些目标，优良遗传基因、无性繁殖和杂交改进树木品种，以及生物工程项目，将会集中用于植树造林体系的种植和管理中。
Historically, the elite government officials are generally people with bound volumes of the family tree.
历史上，官宦人家一般都是采用装订成册的家谱。
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