几种理化处理对秦岭冷杉种子萌发特性的影响  

Effects of Some Physical and Chemical Treatments on Seed Germination of Abies chensiensis

作　　者：李庆梅[1] 孙玉玲[2] 

机构地区：[1]北京林业大学资源与环境学院 [2]中国科学院植物研究所,北京100093

出　　处：《种子》2007年第4期41-44,共4页Seed

摘　　要：采用流动水冲洗、赤霉酸(GA3)溶液浸种、硝酸钾(KNO3)溶液浸种、氧化氢(H2O2)溶液浸种等方法处理秦岭冷杉种子,对秦岭冷杉种子的萌发特性进行研究,进一步探讨秦岭冷杉种子快速解除休眠、促进萌发的技术。结果表明,流动水冲洗对秦岭冷杉种子萌发具有明显的促进作用;50 mg/L、100 mg/L、200 mg/L赤霉素均可显著提高种子发芽率;硝酸钾对秦岭冷杉种子萌发有促进作用,0.1 mol/L硝酸钾效果最好;1%过氧化氢对秦岭冷杉种子的萌发作用效果最佳。It is light dormancy for the seed germination of Abies chensiensis. In this paper we studied the effects of four treatments on the seed germination ofA. chensiensis. The results showed that washing seed by running water obviously promoted the seed germination of this species. GA3 solution of 50 mg/L, 100 mg/L and 200 mg/L significantly increased the seed germination rate. KNO3 was helpful for seed germination and 0.1 mol/L KNO3 solution had the best effect among three concentrations. The seeds treated by 1% H2O2 performed best germination rate.

关 键 词：秦岭冷杉 理化处理 种子 萌发 

分 类 号：S791.14[农业科学—林木遗传育种]