生长[营养]周期
The parameters of the vegetative growth, the clonal reproduction and the sexual reproduction of the natural, fertilizable, drought stress and pruning stress conditions were analyzed by the principal component analysis ( PCA), and the life cycle forms are determine by score proportion of PCA.
将正常生长与施肥、干旱和剪枝后的长春花营养生长、有性生殖、克隆生殖形态学参数进行主成分分析,根据主成分得分比例划分生活史型。
the invention is characterized by short vegetative cycle, low in production cost, good in quality and has scale production.
具有生长周期短、生产成本低、品质好、可规模化生产种苗的特点。
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