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响叶杨组培快繁技术研究

Hunan Forestry Science & Technology(2020)

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Abstract
以响叶杨叶片为外植体进行组培快繁,对外植体消毒、诱导培养、增殖培养、生根培养及炼苗移栽进行了深入研究,结果表明:0.10%升汞溶液最佳消毒时间为5.5 min;最佳诱导培养基为处理1-7(MS+1.00 mg·L-16-BA+0.10 mg·L-1 NAA),诱导率为90.0%;最佳增殖培养基为处理2-8(MS+0.40 mg·L-16-BA+0.15 mg·L-1 NAA),增殖倍数为4.0;适宜生根培养基为1/2 MS+0.10 mg·L-1 NAA,生根率为98.0%;炼苗后移栽选用树皮:珍珠岩:黄土=1:1:1的基质,成活率达92.0%.研究指出,通过芽苞嫁接、温室培育方法,有利于响叶杨野外采集的外植体脱毒.
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