期刊
PLANT SOIL AND ENVIRONMENT
卷 62, 期 7, 页码 314-320出版社
CZECH ACADEMY AGRICULTURAL SCIENCES
DOI: 10.17221/771/2015-PSE
关键词
salinity; Brassica oleracea L. var. capitata; salt tolerance; sea salt stress; ion uptake
类别
资金
- Jiangsu Agricultural Science and Technology Independent Innovation Fund [CX (14)2044]
- Technology System of Modern Agriculture [CARS-25]
- Yancheng Agricultural Scientific and Technology Leading-plan [YKN2014035]
- One hundred Talent Plan of Foreign Experts of Jiangsu Province [JSB2015005]
- Shuangchuang Talent Plan of Jiangsu Province
Cabbage seedlings were grown hydroponically to study the effects of different concentrations of seawater on the seedling growth, ion content under one-fourth strength Hoagland's nutrient solution in the greenhouse. The biomass of various organs of cabbage seedlings as well as the whole plants was significantly higher in the treatments with 1 g and 2 g sea salt/L than the no-salt control, but the treatments with 4, 5 or 6 g sea salt/L caused a decrease in growth. Root/shoot ratio remained at the level of control regardless of the sea salt treatment. Na+ and Cl- concentration in different parts of cabbage seedlings increased significantly, whereas K+ and Ca2+ concentration generally increased at low concentrations of sea salt and then decreased with increasing seawater concentration. Sodium and K+ concentrations were significantly higher in the stems than roots and leaves regardless of the sea salt treatment. The sea salt treatment increased Mg2+ concentration in stems and leaves of cabbage seedlings. An increase in Na+ and Cl- concentration in roots, stems and leaves of cabbage seedlings was the main contributor to declining ratios of K+/Na+, Ca2+/Na+ and Mg2+/Na+. The obtained data suggest that cabbage seedlings have strong ability to sustain seawater stress by the regulation of transport and distribution of ions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据