低温处理对3种造林树种种子活力的影响比较  

Effects of Low-temperature Treatment on Seed Vigor of Three Kinds of Afforestation Tree Species

作　　者：庞洪涛 

机构地区：[1]辽宁省阜蒙县退耕还林办公室,辽宁阜新123100

出　　处：《防护林科技》2018年第6期52-52,54,共2页Protection Forest Science and Technology

摘　　要：油松、侧柏和刺槐是阜新地区常见的造林树种。通过采用低温处理的方式对3树种子进行预处理,探讨低温对种子活力的影响。结果表明,低温处理对3种种子萌发都有影响,其中对油松和侧柏的影响较为显著,对刺槐发芽率的变化影响不显著。The climate in western Liaoning Province is arid and dry,and there are not many tree species suitable for local afforestation.Pinus tabulaeformis,Platycladus orientalis and Robinia pseudoacacia are common tree species in local afforestation and have optimal adaptability to the local environment.In this paper,three kinds of tree seeds were pretreated with low temperature treatment to explore the effect on seed vigor.Result shows that low temperature treatment have the effect on the germination of three kinds of seeds,of which the effect on Pinus tabulaeformis and Platycladus orientalisare significant,and the germination rate of Robinia pseudoacacia is not significant.The trend of seed germination is firstly increase and then decrease,while prolonged cold treatment inhibited seed germination.

关 键 词：低温 油松 侧柏 刺槐 种子萌发 

分 类 号：S725[农业科学—林木遗传育种]