摘要
2012年2月在昆明市宜良花园林场苗圃地,用浓度为100 mg/L、200 mg/L、300 mg/L、400 mg/L的生长调节剂吲哚乙酸(IAA)溶液浸泡香叶树插穗24 h,以清水处理作为对照,设5个处理,每个处理插穗100枝,4次重复,共2 000枝。3个月后对其苗木生根率、平均生根数、平均根长进行统计。结果表明,4种浓度的IAA处理香叶树插穗显著优于清水对照,其中100 mg/L的IAA处理插穗最好,其平均生根数为14,生根率为93.54%,平均根长为5.35 cm,较其他IAA处理插穗3项指标为最好。其次为200 mg/L的IAA处理插穗,其平均生根数为12,生根率为90.33%,平均根长为4.87 cm。最差的为清水对照,平均生根数为2,生根率为35.67%,平均根长为1.03 cm。
Cutting experiment of Lindera communis was conducted in Yiliang Huayuan forest farm located at Kun- ming. The rooting agent of IAA under four concentrations （ 100 mg/L, 200 mg/L, 300 mg/L and 400 mg/L） were used to soak the cuttings for 24 h. Taking the water as control, the experiment set 5 treatments with 4 replicates for each treatment, total 2000 cuttings were dealt with. After 3 months, the rooting rate, average root number and length were calculated. The results showed that, the growth of L. communis cuttings soaked by IAA with 4 concen- trations were better than that of the control. The cuttings soaked with 100 mg/L IAA grew best, its average root number was 14 with the rooting rate of 93.54 % and the average root length of 5.35 cm. Next came the treatment of 200 mg/L IAA, its average root number was 12 with the rooting rate of 90.33 % , and the average root length was 4. 87 cm. The control had poorest performance with the rooting rate of 35.67 %, the average root length of 1.03 cm and the root number of 2 on average.
出处
《西部林业科学》
CAS
北大核心
2013年第2期78-81,共4页
Journal of West China Forestry Science
