力是树木无性系育种中的一个重要参数。
Repeatabillity is the most important genetic parameter in tree clone breeding.
关于树木个体发育中成熟和幼化，包括幼年性、成年性及其关系与利用的问题，越来越多地引起了人们的关注，成为今天无性系育种中的重要课题。
The tree's individual developing about maturation and rejuvenation including yang growth and majority of them, are attracting the people even more , so it has been an important task.
体细胞无性系变异是继花粉和花药培养之后的又一种实用化的细胞工程育种新方法。
Somaclonal variation breeding was a new applicable method of cell engineering under breeding after pollen and anther culture.
其用途仅限于保持育种材料或建立无性系种子园。
Its use is limited to the preservation of breeding material or the establishment of clonal seed orchards.
其用途仅限于保持育种材料或建立无性系种子园。
Its use is limited to the preservation of breeding material or the establishment of clonal seed orchards.
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