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以花托为外植体 ,在培养基中添加 1- 10 0mg LLa(NO3) 3不影响菊花花托外植体膨大和分化成苗所需时间 ,影响外植体的分化率、增殖倍数、幼苗的根数以及根系和茎叶中干物质的积累。 1mg LLa(NO3) 3处理显著增加了外植体的增殖倍数 ,5 0 - 10 0mg LLa(NO3) 3处理显著降低了外植体的分化率和增殖倍数 ,1- 5 0mg LLa(NO3) 3处理促进外植体的生根、根系伸长以及茎叶和根系中干物质含量的积累 ,10 0mg LLa(NO3) 3处理降低了每株平均根数和平均根系总长
Using torch as explants, the addition of 1-10 mg LLa (NO3) 3 to the medium did not affect the time required for the enlargement and differentiation of the chrysanthemum flower explants to expand, and the differentiation rate, multiplication ratio, Roots and dry matter accumulation in roots and stems and leaves. Treatment with 1 mg LLa (NO3) 3 significantly increased the multiplication of explants. The treatment with 50-10 mg LLa (NO3) 3 significantly reduced the differentiation and proliferation of explants, Treatment promoted the accumulation of rooting, root elongation and dry matter content in stems, leaves and roots of the explants. Treatment with 100 mg LLa (NO3) 3 reduced the average number of roots per plant and the average total root length