| Nutrient element contents of cutting seedlings of hybrid species （ Liriodendron chinense x tulipifera） |
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| 摘 要： |
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| 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 |
| 收稿时间： | 3 September 2003 |
Nutrient element contents of cutting seedlings of hybrid species (<Emphasis Type="Italic">Liriodendron chinense</Emphasis> x<Emphasis Type="Italic">tulipifera</Emphasis>) |
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| Authors: | Zhang Xiao-ping Fang Yan-ming Ding Yu-long |
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| Institution: | (1) College of Forest Resources and Environment, Nanjing Forestry University, 210037 Nanjing, P.R. China |
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| Abstract: | The cutting seedlings ofLiriodendron chinense xtulipifera were treated with the different concentrations of auxin (treatment1: 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 nutrient element contents for different organs (root, stem, leaf) of cutting seedling ofLiriodendron chinense xtulipifera 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.
Foundation item: This paper was supported by Jiangsu Province Science Foundation (BE96350).
Biography: ZHANG Xiao-ping, (1972-), female, Ph. Doctor in Nanjing Forestry University. Nanjing 210037, P. R. China.
Responsible editor: Zhu Hong |
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| Keywords: | Hybrid species (Liriodendron chine xtulipifera) Cutting Seedlings Nutrient contents |
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