稀土元素对转基因741杨插穗质量和扦插的影响

Effect of rare earth elements on the cutting quality and cuttage of transgenic 741 poplar

对转基因741毛白杨喷施不同浓度和剂型的稀土元素,采集处理后的嫩枝进行扦插试验。结果表明,适宜的稀土元素能提高枝条的质量,促进插穗生根,适宜的喷施浓度范围是:200～400mg/L。富镧稀土元素促进幼苗高生长的效果好于其他元素。

Through spray different concentration and dose of REE (rare earth elements) to transgentic 741 poplar, the authors used the young branches which had been dealt to do the cottage trial. From the result of the test, the authors found that proper REE can promote the quality of the branches and enhance cottage rooting. The proper spray concentration range is from 200 mg/L to 400 mg/L. The bedling hight is better for the REE of rich La than the others.