| 钠钾交互作用下水稻生长和营养元素吸收特征研究 |
| |
| 引用本文： | 吴延寿,尹建华,彭志勤,杨平.钠钾交互作用下水稻生长和营养元素吸收特征研究[J].安徽农业科学,2009,37(10):4456-4458. |
| |
| 作者姓名： | 吴延寿 尹建华 彭志勤 杨平 |
| |
| 作者单位： | 江西省农业科学院水稻研究所,江西南昌,330200;江西省农业科学院水稻研究所,江西南昌,330200;江西省农业科学院水稻研究所,江西南昌,330200;江西省农业科学院水稻研究所,江西南昌,330200 |
| |
| 摘 要： | 目的]研究钠钾交互作用下水稻生长和营养元素吸收特征,为钠离子转运机制的分子研究提供理论依据。方法]以日本晴水稻为材料,通过盆栽水培研究了钠钾交互作用下水稻生长和营养元素吸收特征。结果]高Na^＋显著抑制水稻的生长和根系的发育,但盐胁迫下短时间的K^＋饥饿并不影响水稻的生长、根系的发育和根冠比。K^＋和Na^＋互相抑制吸收,且Na^＋在一定程度上有替代K＋的作用。Ca^2＋在高钠处理的水稻体内含量有上升趋势,而Mg^2＋在地上部含量有下降趋势,在根系则差异不显著,K^＋的缺乏能促进Mg^2＋的吸收。盐胁迫能显著增加根系和地上部阳离子总数,但K^＋饥饿下地上部阳离子总数提高。高Na^＋显著降低氮的含量,K^＋只对地上部氮的累积影响较大,而磷则相反。各营养元素因不同处理而呈现不同的根冠分布。结论]揭示了水稻在钠钾交互作用下体内吸收转运机制。
|
| 关 键 词： | 水稻 钠 钾 盐胁迫 |
Study on Rice Growth and Characteristics of Nutrient Elements Absorption Under Interaction of K and Na |
| |
| WU Yan-shou et al.Study on Rice Growth and Characteristics of Nutrient Elements Absorption Under Interaction of K and Na[J].Journal of Anhui Agricultural Sciences,2009,37(10):4456-4458. |
| |
| Authors: | WU Yan-shou |
| |
| Institution: | WU Yan-shou et al(Rice Research Institute,Jiangxi Academy of Agricultural Sciences,Nanchang,Jiangxi 330200) |
| |
| Abstract: | Objective] The aim was to study rice growth and characteristics of nutrient elements Absorption under interaction of K and Na and provide theoretical basis for molecular research of Na+ Absorption and transport mechanism.Method] The potted hydroponics was conducted with rice cv.Nipponbare to study rice growth and characteristics of nutrient elements Absorption under interaction of K and Na.Result] The results showed that high Na+ dramatically decreased rice growth and root development,however,short-term ... |
| |
| Keywords: | Rice Na K Salt stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
