The relationship between relative growth rate and whole-plant C:N:P stoichiometry in plant seedlings grown under nutrient-enriched conditions
文献类型：期刊论文
| 作者 | Peng, Youhong ; Niklas, Karl J. ; Sun, Shucun |
| 刊名 | JOURNAL OF PLANT ECOLOGY-UK
 |
| 出版日期 | 2011 |
| 卷号 | 4期号:3页码:147-156 |
| 关键词 | C : N : P stoichiometry RGR growth rate hypothesis life forms seedlings screening experiment |
| ISSN号 | 1752-9921 |
| 产权排序 | 1 |
| 通讯作者 | Sun, SC (reprint author), Nanjing Univ, Dept Biol, 22 Hankou Rd, Nanjing 210093, Peoples R China. |
| 英文摘要 | Aims Recent theories indicate that N is more in demand for plant growth than P; therefore, N concentration and N : C and N : P ratios are predicted to be positively correlated with relative growth rate (RGR) in plants under nutrient-enriched conditions. This prediction was tested in this study. Methods We examined the whole-plant concentrations of C, N and P and RGR, as well as the relationship between RGR and the concentrations and the ratios of N : C, P : C and N : P, for different harvest stages (the days after seed germination) of the seedlings of seven shrub species and four herbaceous species grown in N and P non-limiting conditions. The relationships among plant size, nutrient concentrations and ratios were subsequently determined. Important Findings RGR was positively correlated with N concentration and the ratios of N : P and N : C when the data were pooled for all species and for each shrub species, but not for individual herbaceous species. However, the relationship between RGR and P concentration and P: C was not significantly correlated for either shrubs or herbs. The variation of N among harvest stages and species was much greater than that of P, and the variation in N : P ratio was determined primarily by changes in N concentration. The shrub species differed from the herbaceous species in their N and P concentrations, nutrient ratios and in intra-specific relationships between RGR and nutrient ratios. These differences possibly reflect differences in the capacity for P storage and biomass allocation patterns. In general, our data support recent theoretical predictions regarding the relationship between RGR and C : N : P stoichiometry, but they also show that species with different life forms differ in the relationships among RGR and C : N : P stoichimetries. |
| 学科主题 | Plant Sciences; Environmental Sciences & Ecology |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences[KZCX2-XB2-02]; Chinese Ministry of Science and Technology[2006BAD09A04-03-01]; ECORES Lab[08B2011107] |
| 语种 | 英语 |
| WOS记录号 | WOS:000294743100005 |
| 公开日期 | 2012-11-09 |
| 源URL | [http://210.75.237.14/handle/351003/23434]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Peng, Youhong,Niklas, Karl J.,Sun, Shucun. The relationship between relative growth rate and whole-plant C:N:P stoichiometry in plant seedlings grown under nutrient-enriched conditions[J]. JOURNAL OF PLANT ECOLOGY-UK,2011,4(3):147-156. |
| APA | Peng, Youhong,Niklas, Karl J.,&Sun, Shucun.(2011).The relationship between relative growth rate and whole-plant C:N:P stoichiometry in plant seedlings grown under nutrient-enriched conditions.JOURNAL OF PLANT ECOLOGY-UK,4(3),147-156. |
| MLA | Peng, Youhong,et al."The relationship between relative growth rate and whole-plant C:N:P stoichiometry in plant seedlings grown under nutrient-enriched conditions".JOURNAL OF PLANT ECOLOGY-UK 4.3(2011):147-156. |
入库方式： OAI收割
来源：成都生物研究所
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