Nutrient element contents of cutting seedlings of hybrid species （ Liriodendron chinense x tulipifera）

编号 zgly0000305566

文献类型 期刊论文

文献题名 Nutrient element contents of cutting seedlings of hybrid species （ Liriodendron chinense x tulipifera）

学科分类 220.1050;树木生理学

作者 ZHANGXiao-ping  FANGYan-ming  DINGYu-long 

作者单位 CollegeofForestResourcesandEnvironment 

母体文献 Journal of Forestry Research（林业研究：英文版） 

年卷期 2003,14(4)

页码 307-310

年份 2003 

分类号 Q945.12 

关键词 养分含量  杂交种  树苗  树种  鹅掌楸  郁金香  器官  生物量  根  茎  叶  植物激素 

文摘内容 The cutting seedlings of Liriodendron chinense x tulipifera were treated with the different concentrations of auxin (treatmenh: IBA of 50 g·kg^-1 + NAA of 300 g·kg^-1; treatment2- IBA of 100 g·kg^-1 + NAA of 300 g·kg^-1). The biomass and the nutrient element contents for different organs (root, stem, leaf) of cutting seedling of Liriodendron chinense x tulipifera were measured by the dry method, Kjeldahl method and Atomic Absorption Spectroscopy method. The result showed that the biomass of root, stem, and leaf of the cutting seedling treated with auxin was all remarkably increased. The contents of element C in root, stem and leaf had no significant difference between the control and auxin treatments, while the contents of N, P, K and Ca in stem were much lower than that in leaf and root. Variance analysis showed that for the same organ with different concentration treatment of auxin, the four nutrient elements (N, P, K, and Ca) had no significant difference in contents, while there existed significant or very significant difference in contents of the four nutrient elements in different organs with the same concentration auxin treatment. The N, P, K and Ca contents were very low in cutting seedlings; as a result, additional fertilizer should be applied to the seedlings when they were planted in the field。