温度和湿度对云南松种子发芽的影响  

The Effect of Temperature and Humidity on Seed Germination of Pinus yunnanensis

作　　者：张跃敏[1] 李根前[1] 李莲芳[2] 刘代亿[1] 赵敏冲[1] 

机构地区：[1]西南林学院,昆明650224 [2]云南省林业科学院,昆明650204

出　　处：《陕西林业科技》2010年第4期1-4,共4页Shaanxi Forest Science and Technology

基　　金：云南省"十一五"科技攻关项目(2006NG29);西南林学院重点基金项目;西南山地森林资源保育与利用教育部重点实验室资助项目

摘　　要：为了解温度和湿度对云南松种子发芽的影响规律,采用3×3回归设计,在人工气候箱15℃、25℃、35℃和60%、80%、100%三种温度和湿度条件下进行云南松种子发芽试验。结果表明,发芽率与温度和湿度之间呈极显著的二次抛物线关系,发芽的最佳温度为19.6℃、最佳湿度为82.6%,对应的最高发芽率为96.9%。In order to understand the effect of temperature and humidity on seed germination of Pinus yunnanensis,germination test is carried out under 15℃,25℃,35℃ respectively,together with humidity at 60%,80%,100% in 3×3 regression design.The results showed that germination percentage was closely in relation with temperature and humidity on a quadratic parabola pattern.The maximum germination temperature is 19.6℃ with humidity at 82.6% and the corresponding germination percentage was 96.9%.

关 键 词：云南松 温度 湿度 发芽率 发芽势 

分 类 号：S791.257[农业科学—林木遗传育种]