超声波、生长素和浸泡时长对毛白杨插穗生根率的影响  

Effects of Ultrasonication, Auxins and Soaking Time to the Rooting Rate of Populus tomentosa Cuttings

作　　者：张红梅[1,2] 孙毅[2] 杜建中[2] 王亦学[2] 

机构地区：[1]山西大学生物技术研究所,山西太原030006 [2]山西省农业科学院生物技术研究中心,山西太原030031

出　　处：《山西农业科学》2010年第3期34-38,共5页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(2006031015)

摘　　要：以毛白杨插条为材料,研究了3种超声波强度、3种生长素及3个浸泡时长对其扦插生根率的影响。结果表明,在相同生长素、相同浸泡时间下,以200,400 W超声波处理的毛白杨扦插生根率明显优于600 W及对照;在相同超声波及相同浸泡时间下,ABT对毛白杨生根具有促进作用,IBA和NAA与对照之间有差异,但差异不显著;在相同超声波、相同生长素处理下,以蘸根的插条生根率最高,6 h次之,12 h最差。在所有处理组合中,以400 W超声波,ABT100 mg/L,蘸根的组合生根率最高,达90%。The aim of study was to investigate the methods for improving rooting rate of Populus tornentosa cutting. With Populus tomentosa shoot segments as cuttings, 3 factors, uhrasonieation,auxins and soaking time, and 3 levels for each of them were designed. With the same auxins and soaking time,the rooting rate ofPopulus tomentosa cuttings at the 400 W ultasonication was higher than that at the 200, 600 W and CK. With the same uhrasonieation and soaking time, IAA and ABT had promoting effects on the rooting rate of Populus tornentosa cuttings, but IBA, NAA, and IBA＋NAA had no obvious effect. In the treatments with same uhrasonication and auxins, the rooting rate of dipping treatment was the highest, and 12 h soaking time was the lowest. Among all the treatrnent combinations, the combination of 400 W, 100 mg/L ABT and dipping produced the highest rooting rate, reaching 90%. Proper treatment with uhrasonication, auxins and soaking time could enhance the rooting rate of Populus tomentosa cuttings.

关 键 词：毛白杨 超声波 生长素 浸泡时长 插穗 

分 类 号：S792.117[农业科学—林木遗传育种]