Effects of Sodium Selenite on the Rhizosphere Environment, Growth, and Physiological Traits of Oilseed Rape (Brassica napus L.)
文献类型：期刊论文
| 作者 | Xu, Yuefeng2; Li, Yonghua1 |
| 刊名 | AGRONOMY-BASEL
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 13期号:10页码:15 |
| 关键词 | selenium rapeseed rhizosphere soil solution speciation glutathione peroxidase canonical correlation |
| DOI | 10.3390/agronomy13102508 |
| 通讯作者 | Xu, Yuefeng(xuyf@sxau.edu.cn) |
| 英文摘要 | Soil selenium (Se) speciation characteristics and their influence on the Se enrichment pattern and physiological characteristics of oilseed rape are poorly understood. We investigated dynamic changes in rhizosphere soil physicochemical properties, Se uptake and partitioning, biomass, and physiological indices in oilseed rape under five exogenous Se condition levels (0, 1.0, 2.5, 5.0, and 10.0 mg kg(-1) Se in sodium selenite) using soil cultivation experiments. The rhizosphere pH and dissolved organic carbon in the soil solution were higher than those of the non-rhizosphere soil solution. The total Se, water-soluble Se, exchangeable Se, and organic Se contents in soils, as well as rapeseed root/leaf Se contents, significantly increased with increasing exogenous Se. Under 2.5 mg kg(-1) Se, the biomass of rapeseed roots and leaves increased at the sixth week (82% and 58%) and eighth week (48% and 32%), respectively, reaching the highest level. Applications of 5.0 mg kg(-1) Se at 6 and 8 weeks significantly increased the glutathione peroxidase activity (49%/82%), and decreased malondialdehyde content (23%/39%). Canonical correlation and ridge regression analyses showed that Se in the rapeseed roots/leaves significantly and positively correlated with water-soluble Se, exchangeable Se, and organic Se in rhizosphere soil. Overall, moderate-concentration Se soil application benefited oilseed rape growth (optimum = 2.5 mg kg(-1) Se). Our findings reveal the response of oilseed rape to soil Se application based on plant growth and physiological traits, rhizospheric soil solution properties, and Se speciation transformation. |
| WOS关键词 | SOIL SELENIUM ; BIOAVAILABILITY ; ACCUMULATION ; SPECIATION ; STRESS ; DYNAMICS ; PLANTS ; PH ; BIOFORTIFICATION ; CULTIVARS |
| 资助项目 | We give special thanks to Pang Xiaoming from the College of Biological Sciences and Technology, Beijing Forestry University, for his assistance in the experiment. |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001098134200001 |
| 出版者 | MDPI |
| 资助机构 | We give special thanks to Pang Xiaoming from the College of Biological Sciences and Technology, Beijing Forestry University, for his assistance in the experiment. |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/199508]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Yuefeng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Shanxi Agr Univ, Coll Resources & Environm, Taigu 030801, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Yuefeng,Li, Yonghua. Effects of Sodium Selenite on the Rhizosphere Environment, Growth, and Physiological Traits of Oilseed Rape (Brassica napus L.)[J]. AGRONOMY-BASEL,2023,13(10):15. |
| APA | Xu, Yuefeng,&Li, Yonghua.(2023).Effects of Sodium Selenite on the Rhizosphere Environment, Growth, and Physiological Traits of Oilseed Rape (Brassica napus L.).AGRONOMY-BASEL,13(10),15. |
| MLA | Xu, Yuefeng,et al."Effects of Sodium Selenite on the Rhizosphere Environment, Growth, and Physiological Traits of Oilseed Rape (Brassica napus L.)".AGRONOMY-BASEL 13.10(2023):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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