干旱区生态环境知识资源中心(Arid): Interactive effects of phosphorus fertilization and salinity on plant growth, phosphorus and sodium status, and tartrate exudation by roots of two alfalfa cultivars

Arid

DOI	10.1093/aob/mcab124
	Interactive effects of phosphorus fertilization and salinity on plant growth, phosphorus and sodium status, and tartrate exudation by roots of two alfalfa cultivars
	Su, Rui; Zhang, Zekun; Chang, Chao; Peng, Qi; Cheng, Xiao; Pang, Jiayin; He, Honghua; Lambers, Hans
通讯作者	He, HH (corresponding author)，Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China. ; He, HH (corresponding author)，Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China. ; He, HH (corresponding author)，Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China. ; He, HH (corresponding author)，Univ Western Australia, Sch Biol Sci, Perth, WA 6001, Australia.
来源期刊	ANNALS OF BOTANY
ISSN	0305-7364
EISSN	1095-8290
出版年	2022
卷号	129 期号:1
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.
英文关键词	Medicago sativa phosphorus fertilization phosphorus-uptake efficiency rhizosheath carboxylate salinity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000743325100006
WOS关键词	MEDICAGO-SATIVA ; SALT STRESS ; PHYSIOLOGICAL-RESPONSES ; TOLERANCE ; AVAILABILITY ; ACCUMULATION ; ACQUISITION ; ADAPTATIONS ; MECHANISMS ; EFFICIENCY
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376961
作者单位	[Su, Rui; Zhang, Zekun; Chang, Chao; Cheng, Xiao; He, Honghua] Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; [Su, Rui; Zhang, Zekun; Chang, Chao; Cheng, Xiao; He, Honghua] Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China; [Peng, Qi; He, Honghua] Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; [Peng, Qi] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Pang, Jiayin] Univ Western Australia, UWA Sch Agr & Environm, Perth, WA 6001, Australia; [Pang, Jiayin; Lambers, Hans] Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia; [He, Honghua; Lambers, Hans] Univ Western Australia, Sch Biol Sci, Perth, WA 6001, Australia; [Lambers, Hans] 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],2022,129(1).
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).
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).