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光照条件对长苞铁杉种子萌发与幼苗生长的影响-core.pdf

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2008, 28( 3): 262- 266 28 3 Journal of Fujian College of Forestry 2008 7 光照条件对长苞铁杉种子萌发与幼苗生长的影响 1 2 3 3 3 2 , , , , , ( 1. 中国林业科学研究院林业科技信息研究所, 北京 100091; 2. 厦门大学生命科学学院, 福建厦门 361005; 3. 福建天宝岩国家级自然保护 管理局, 福建 永安 366000) : 200 - 2006( 100% , 50% , 25% , 10% )( Tsug a long ibracteata) , 50% , ; ; , , a b , a b 50% , , MDA SOD POD; , MDA SOD POD Pro 25% 50% : ; ; ; ; : S718. 5 : A : 1001- 389X( 2008) 03- 0262- 05 Effectof light intensity environmentonTsuga long ibra ctea ta seed germinated, seedling survivaland growth 1 2 3 3 3 2 ZHU X iao-long , SONG A i-qin , WANG Jian-lin , HUANG Cheng-yong, LA I Zhi-hua, LI Zhen-ji ( 1. Research Institute of Forestry Policy and Inform ation, Ch inese Academ y of Forestry, Beijing 100091, Ch ina; 2. School of Life Science, X iam en Un iversity, X iam en, Fujian 361005, Ch ina; 3. Adm in istration of Tianbaoyan N ational Natural Reserve of Fujian, Yongan, Fujian 366000, Ch ina) Abstract: The seed germ inated rate, seed ling survival rate, seedling b iom ass and physiological characteristics of seedlings leaves and rootswere investigated after Tsuga long ibracteata Cheng seeds sem inated in light intensity levels ( 100% , 50% , 25% , 10% full sunlight) seedbeds for one grow ing season from 200 to 2006. The seed germ inated rate and seed lings survival rate w ere the h ighest in the 50% fu ll sun ligh t environm ent. Full sunlight is not suitable for seed
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