摘要
通过7种不同温度、不同时间的层积处理研究其对北美鹅掌楸种子发芽的影响.结果表明:低温层积处理能显著促进北美鹅掌楸的种子萌发.在2℃、层积处理时间为60d的条件下种子发芽效果最好,种子绝对发芽率为86.84%,发芽速度最快;在2～12℃变温层积处理56d的条件下,种子绝对发芽率为80.71%,种子发芽较快.在7℃,层积处理时间为30d的条件下种子发芽效果最差,种子绝对发芽率为62.29%.
Effects of seven stratification treatments at different temperature and time on seed germination of tuliptiee （ Liriodendron tulipifera L. ） were studied： （1）2℃,30d; （2） 2℃ ,60d; （3） 7℃ ,30d; （4） 7℃ ,60d; （5） 2～12℃ change temperature, 28d; （6）2～12℃ change temperature, 56d; （7）CK（water soakage 12h ）.The results revealed that low temperature stratification could promote tulip tree seed gerotination remarkably. Under the stratification of 2℃, seed germination could be quickest, and the seed absolute germination percentage could reach 86.84% after 60 days＇ stratification. When temperature variable （2～12℃） and less time （56 days）, the seed absolute germination percentage was 80.71%, While stratification in 7℃ and 30 days, the seed absolute germination percentage would be the lowest （only 62.2% in this experiment）.
出处
《林业科技开发》
2005年第5期17-19,共3页
China Forestry Science and Technology
基金
江苏省农业三项工程资助项目[编号SX(2002)095]
