北美蓝云杉不同种源幼苗对光照敏感性的研究  

The Study about the Affects of Light on the Growth of Picea Pungens Seedlings

作　　者：郑红娟[1] 余海[2] 贾桂霞[1] 

机构地区：[1]北京林业大学园林学院,北京100083 [2]中国林业科学研究院华北林业实验中心,北京100091

出　　处：《北方园艺》2008年第3期131-133,共3页Northern Horticulture

基　　金：国家林业局“948”资助项目(2002-08-01)

摘　　要：研究了光对4个种源的蓝云杉生长的影响。结果表明:加光处理显著促进了蓝云杉的生长和生物量的增加,尤其是4号种源在光照处理下侧根平均18.3条,而对照只有4.8条。在不同的光照时间处理,20 h光照处理的蓝云杉高生长最佳,平均高达5.51 cm,而在16 h光照下只有4.37 cm。不同的处理中,4个种源之间存在显著差异,1号为最优种源,其平均高为5.30 cm,而2号的平均高仅为4.36 cm。The effects of light on the growth of Picea pungens seedlings were studied, The results showed that light can promote the growth and biomass allocation of the Picea pungens seedlings. The average ntrmber of No. 4 lateral root in the light treatment was 18. 3,however, the contrast was only 4. 8. Under different light control lasting,20 h got the best resuits, the average height was 5. 51 cm,and at 16 h was only 4. 37 cm. Under different treatment, the reaction of the four provenances was defferent, No. 1 was the best provenance ,its average height was 5. 30 cm No. 2 was only 4. 36 cm.

关 键 词：蓝云杉 种源 补光 

分 类 号：S791.18[农业科学—林木遗传育种]