Interactive effects of phosphorus fertilization and salinity on plant growth, phosphorus and sodium status, and tartrate exudation by roots of two alfalfa cultivars
文献类型：期刊论文
| 作者 | Su, Rui1,2; Zhang, Zekun1,2; Chang, Chao1,2; Peng, Qi3,4; Cheng, Xiao1,2; Pang, Jiayin5,6; He, Honghua1,2,3,7; Lambers, Hans6,7,8 |
| 刊名 | ANNALS OF BOTANY
 |
| 出版日期 | 2022 |
| 卷号 | 129期号:1页码:53-63 |
| 关键词 | Medicago sativa phosphorus fertilization phosphorus-uptake efficiency rhizosheath carboxylate salinity |
| ISSN号 | 0305-7364 |
| DOI | 10.1093/aob/mcab124 |
| 通讯作者 | He, Honghua(honghuahe@ms.iswc.ac.cn) |
| 英文摘要 | Background and Aims Soil phosphorus (P) deficiency and salinity are constraints to crop productivity in arid and semiarid regions. Salinity may weaken the effect of P fertilization on plant growth. We investigated the interactive effects of soil P availability and salinity on plant growth, P nutrition and salt tolerance of two alfalfa (Medicago sativa) cultivars. Methods A pot experiment was carried out to grow two cultivars of alfalfa in a loess soil under a combination of different rates of added P (0, 40, 80 and 160 mg P kg(-1) soil as monopotassium phosphate) and sodium chloride (0, 0.4, 0.8 and 1.6 g NaCl kg(-1) soil). Plant biomass, concentrations of P ([P]), sodium ([Na]) and potassium ([K]) were determined, and rhizosheath carboxylates were analysed. Key Results There were significant interactions between soil P availability and salinity on some, but not all, of the parameters investigated, and interactions depended on cultivar. Plant growth and P uptake were enhanced by P fertilization, but inhibited by increased levels of salinity. Increasing the salinity resulted in decreased plant P-uptake efficiency and [K]/[Na]. Only soil P availability had a significant effect on the amount of tartrate in the rhizosheath of both cultivars. Conclusions Increased salinity aggravated P deficiency. Appropriate application of P fertilizers improved the salt tolerance of alfalfa and increased its productivity in saline soils. |
| WOS关键词 | MEDICAGO-SATIVA ; SALT STRESS ; PHYSIOLOGICAL-RESPONSES ; TOLERANCE ; AVAILABILITY ; ACCUMULATION ; ACQUISITION ; ADAPTATIONS ; MECHANISMS ; EFFICIENCY |
| 资助项目 | Natural Science Basic Research Program of Shaanxi Province[2019JM-411] ; National Key Research and Development Plan of China[2017YFC0504504] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000743325100006 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Natural Science Basic Research Program of Shaanxi Province ; National Key Research and Development Plan of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/171024]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | He, Honghua |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Univ Western Australia, UWA Sch Agr & Environm, Perth, WA 6001, Australia 6.Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia 7.Univ Western Australia, Sch Biol Sci, Perth, WA 6001, Australia 8.China Agr Univ, Dept Plant Nutr, Beijing 100193, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Rui,Zhang, Zekun,Chang, Chao,et al. Interactive effects of phosphorus fertilization and salinity on plant growth, phosphorus and sodium status, and tartrate exudation by roots of two alfalfa cultivars[J]. ANNALS OF BOTANY,2022,129(1):53-63. |
| APA | Su, Rui.,Zhang, Zekun.,Chang, Chao.,Peng, Qi.,Cheng, Xiao.,...&Lambers, Hans.(2022).Interactive effects of phosphorus fertilization and salinity on plant growth, phosphorus and sodium status, and tartrate exudation by roots of two alfalfa cultivars.ANNALS OF BOTANY,129(1),53-63. |
| MLA | Su, Rui,et al."Interactive effects of phosphorus fertilization and salinity on plant growth, phosphorus and sodium status, and tartrate exudation by roots of two alfalfa cultivars".ANNALS OF BOTANY 129.1(2022):53-63. |
入库方式： OAI收割
来源：地理科学与资源研究所
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