体细胞无性系变异已获得一些作物专利，并以此作为一种手段来产生可供选择的遗传变异，且假定该作物一旦移植生长，它的基因稳定。
Somaclonal variation has been patented in some crops as a means of producing genetic variability for selection, and it was assumed that the crops were genetically stable once established.
通过选择优良无性系，组建综合品种的途径有利于根蘖性状提高。
The way to set up synthetic variety by selecting good colone is of benefit to developing creeping rooted charcter.
说明从中选择优良无性系是可能的。
利用3 ~4年单枝结果数和单株产果量的平均值作为高产胶优良无性系早期选择的标准。
The average yield of every 3 ~ 4 a from a single twig and from an individual could also be employed as an index for early stage selection of new clones.
无性系基因型光合特性的研究，有利于杉木早期选择。
The study of the photosynthetic characteristics of genotype of the clone system was advantageous to the early selection of Chinese fir.
对于用作授粉亲本的一些无性系的选择，不得不采用一种折衷办法。
A compromise has to be made as to the choice of clones to be used as pollen parents.
对优良林草品种的选择和林草复合经营技术试验结果表明：引进的速生杨、速生柳各无性系间的扦插繁育和植苗造林成活率均不存在显著性差异；
Experimental results indicated that for the introduced fast-growing poplar and willow the cutting cultivating and the seedling planting of all clones had no significant difference in survival rate.
加强对种内扦插生根率变异性的研究，选择生根力强的无性系、家系或种源；
Researches on rooting rate variation should be undergone to identify the clones, families and provenances with strong rooting capacity and high survival rate.
加强对种内扦插生根率变异性的研究，选择生根力强的无性系、家系或种源；
Researches on rooting rate variation should be undergone to identify the clones, families and provenances with strong rooting capacity and high survival rate.
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