不同外源激素处理对弗吉尼亚栎种子发芽的影响  

Effects of Different Hormone Treatments on Seed Germination of Quercus virginiana in North America

作　　者：马尚 崔蓝芳 王富河 MA Shang;CUI Lan-fang;WANG Fu-he(Forestry Bureau of Pingqiao District,Xinyang,Henan 464100;Xinyang Agriculture and Forestry University,Xinyang,Henan 464100)

机构地区：[1]信阳市平桥区林业局,河南信阳464100 [2]信阳农林学院,河南信阳464100

出　　处：《安徽农业科学》2024年第12期113-116,176,共5页Journal of Anhui Agricultural Sciences

基　　金：中央财政林业科技推广项目(GTH[2020]15号)。

摘　　要：为提高弗吉尼亚栎种子的发芽率,以弗吉尼亚栎种子为材料,选用不同浓度的吲哚乙酸(IAA)、萘乙酸(NAA)外源激素分别浸种1、3 h,以清水浸种1、3 h为对照,在20℃恒温下观测种子的发芽指标。结果表明:100 mg/L NAA浸种1 h发芽率为66.70%,100、200 mg/L IAA浸种3 h和150 mg/L浸种1 h IAA发芽势均为53.30%;100 mg/L IAA浸种3 h的发芽指数为16.38;100 mg/L IAA浸种3 h的胚根生长为3.80 cm,优于对照及其他处理。In order to improve the germination rate of Q.virginiana seeds,the seeds of Q.virginiana were soaked in different concentrations of exogenous hormones indoleacetic acid(IAA) and naphthoacetic acid(NAA) for 1 h and 3 h,respectively.The seeds were soaked in water for 1 h and 3 h,and the germination indexes of the seeds were observed at a constant temperature of 20 ℃.The results showed that the germination rate of seeds soaked with 100 mg/L naphthoacetic acid(NAA) for 1 h was 66.70%.The germination rate of indoleacetic acid(IAA) was 53.30% at 100 mg/L,200 mg/L for 3 h and 150 mg/L for 1 h.The germination index of seeds soaked with 100 mg/L indoleacetic acid(IAA) for 3 h was 16.38.The radicle growth of seeds soaked with 100 mg/L indoleacetic acid(IAA) for 3 h was 3.80 cm,which was better than the control and other treatments.

关 键 词：外源激素 北美栎树 弗吉尼亚栎 发芽率 

分 类 号：S722[农业科学—林木遗传育种]