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不同扦插部位及促根剂对沙地柏扦插生根的影响 被引量:6

Effects of Different Cutting Position and Promoting Agent on Rooting of Sabina vulgaris Ant.
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摘要 为提高沙地柏大面积扦插繁殖的生根率,对沙地柏不同部位插穗及在不同促根剂处理下插穗的生根情况进行了研究。结果表明:沙地柏不同部位插穗的生根率由高到低分别为上部半木质化>中部木质化>主干木质化>下部木质化;上部半木质化插穗经3种不同浓度促根剂处理后,生根情况整体均好于对照组(CK),其中以200mg·L^(-1)的吲哚乙酸(IAA)和萘乙酸(NAA)的混合液处理40 min效果最好,生根率达89.0%,最长根长为15.4cm。综合试验结果,在大面积进行沙地柏扦插育苗时,以上部半木质化枝条作为插穗,经浓度为200mg·L^(-1)的吲哚乙酸和萘乙酸的混合液处理40min可有效增大扦插繁殖的成活率。 In order to improve the rooting rate of large area cuttings propagation of Sabina vulgaris,the effects of different cuttings in different positions and rooting agents were studied.The results showed that the rooting rate of cuttings from different parts of Sabina vulgaris was from top to bottom upper semi-lignification>central lignification>trunk lignification>lower lignification;the rooting rate of the upper semi-lignified cuttings was better than that of the control group,and the concentration of 200 mg·L-1 IAA and NAA misture solution was the best.The rooting rate was 89.0%,the longest root length was 15.4 cm.In conclusion,in the large area cuttings propagation of Sabina vulgaris,the upper semi-lignified branches as cuttings,the concentration of 200 mg·L-1 IAA and NAA mixture solution can effectively increase the survival rate of cutting propagation.
作者 张志鹏 翟双喜 ZHANG Zhi-peng;ZHAI Shuang-xi(Tianshan Park of Ar Horqin Banner,Chifeng 025550,China)
出处 《黑龙江农业科学》 2018年第2期63-66,共4页 Heilongjiang Agricultural Sciences
关键词 沙地柏 扦插繁殖 插穗 促根剂 Sabina vulgaris Ant cutting propagation cuttings promoting agent
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