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Effects of Lateral Roots and Growth Regulator on the Quality of Saposhnikovia Divaricata
Author(s): 
Pages: 68-71
Year: Issue:  5
Journal: World Science and Technology-Modernization of Traditional Chinese Medicine

Keyword:  防风生长调节剂GANAA;
Abstract: 目的:探讨侧根对质量影响机理及生长调节剂对防风药材质量.方法:以不同浓度的奈乙酸(NAA)、赤霉素(GA)处理种苗后移栽,秋季采收药材的根,测量药材直径及各部位所占的比例,并以高效液相色谱法测定根中的四种色原酮成分.结果:25mg/kg、100mg/kg、500mg/kg的NAA可提高移栽防风根中四种色原酮类活性成分的含量,其中500mg/kgNAA的四种色原酮总含量最高.4种色原酮含量在韧皮部为0.6784%,木质部为0.1153%,全根为0.9480%,侧根为1.4433%.侧根中韧皮部的比例为0.861%,主根的0.684%.结论:4种色原酮类活性成分主要存在于韧皮部,侧根中韧皮部比例大,NAA处理可使防风产生大量侧根,从而提高防风药材的质量.
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