摘要
在影响种子萌发的几个因子下,对线叶嵩草、窄果嵩草、久治嵩草和高山嵩草种子的休眠特性及萌发技术进行了探讨。结果表明:4种嵩草种子都具有休眠特性。试验所有处理方法都不能完全解除嵩草种子的休眠,但用氢氧化钠溶液处理后,线叶嵩草与窄果嵩草的发芽率显著提高(P<0.05)。
The seeds dormancy of four Kobresia species--K.Capi- lliforlia,K.stenocarpa,K.jiuzhiensis,K.pygmaea were studied. To improve the seeds germination,the trials were carried out under different conditions.The results showed that seeds of the four species had dormant characteristics and which were complicated.None of the treatments were unable to break the dormancies of any species tho- roughlly.The germination capacities of K.capilliforlia and K.stenoca- carpa were significantly increased after NaOH solution treatment(P< 0.05).
关键词
嵩草
种子休眠
萌发技术
Kobresia spp
Seed dormancy
Germination
