对多花银叶树组织培养研究中的增殖培养、幼芽伸长生长、壮苗培养、根诱导等进行了研究。
This paper deals with proliferation culture, plumule elongation, strong plant culture and root inducing on tissue culture of Leucadendron floridum.
根系内源生长素促进烟草生根，但在一定范围内，浓度较低会促进根原基的发生，而浓度较高反而抑制根原基产生，并同时能够促进根系的伸长生长。
But within certain scope, it promoted tobacco roots' primordius' coming into being When the concentration was lower, restrained which and promoted elongation of them when concentration was higher.
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