Phosphorus-zinc interactions in two barley cultivars differing in phosphorus and zinc efficiencies
文献类型：期刊论文
| 作者 | Smith, FA; Li, HY; Zhu, YG; Smith, SE |
| 刊名 | JOURNAL OF PLANT NUTRITION
 |
| 出版日期 | 2003 |
| 卷号 | 26期号:5页码:1085-1099 |
| 关键词 | Barley Phosphorus-zinc Interactions Efficiency Uptake |
| DOI | 10.1081/PLN-120020077 |
| 英文摘要 | Phosphorus (P)-zinc (Zn) interactions in two barley cultivars (Clipper and Sahara) differing in P and Zn efficiencies were investigated in a pot experiment carried out in a growth chamber. A highly calcareous field soil from a semi-arid region of South Australia was used. Five, levels of P addition and three levels of Zn addition were used. Plants were harvested five weeks after emergence. Increase in P supply significantly increased plant shoot biomass and tissue P concentrations in both cultivars, indicating that the soil used is P deficient. Zinc additions with low P additions caused slight decreases in plant biomass. However, Zn addition did increase plant growth when higher levels of P were applied demonstrating the importance of the balance Zn and P supply. Results showed that the genotypic difference between the two cultivars in P uptake efficiency (specific P uptake, SPU) can be altered by Zn-P interactions, and that total Zn uptake by Sahara was higher than Clipper irrespective of P supply. Tissue Zn concentrations decreased significantly with an increase in P supply in both cultivars. Increase in P supply drastically reduced the molar ratio of Zn to P in shoots (MRZP), and addition of Zn compensated for the reduction in MRZP due to P addition. The role of P-Zn interactions in the context of nutritional quality of plant food is also discussed. |
| WOS研究方向 | Plant Sciences |
| WOS记录号 | WOS:000182485300011 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23805]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Smith, FA,Li, HY,Zhu, YG,et al. Phosphorus-zinc interactions in two barley cultivars differing in phosphorus and zinc efficiencies[J]. JOURNAL OF PLANT NUTRITION,2003,26(5):1085-1099. |
| APA | Smith, FA,Li, HY,Zhu, YG,&Smith, SE.(2003).Phosphorus-zinc interactions in two barley cultivars differing in phosphorus and zinc efficiencies.JOURNAL OF PLANT NUTRITION,26(5),1085-1099. |
| MLA | Smith, FA,et al."Phosphorus-zinc interactions in two barley cultivars differing in phosphorus and zinc efficiencies".JOURNAL OF PLANT NUTRITION 26.5(2003):1085-1099. |
入库方式： OAI收割
来源：生态环境研究中心
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