其他题名Effects of Salt and Drought on Winter Wheat in Seedling Stage Under Different Nitrogen Rates
文佩1; 陈小兵1
; 张乐乐2; 李依霖2; 齐铭君3; 姜姝璇3; 张立宾4发表期刊土壤
ISSN0253-9829
2019
卷号51.0期号:002页码:324-329
关键词盐胁迫干旱盐旱复合胁迫冬小麦幼苗
英文摘要为探究不同浓度盐胁迫和水分胁迫及两者互作对小麦幼苗生理特性的影响,于2017年3月至5月布置盆栽试验,分别设置两个NaCl胁迫(S1,NaCl 1.9g/kg;S2,NaCl 2.9g/kg)和两个水分处理水平(W1,78%田间持水量;W2,47%田间持水量),测定了冬小麦幼苗地上部和地下部干物质量、全氮、叶绿素和可溶性糖含量。结果表明:①在本试验盐胁迫范围内,单一盐胁迫下盐分含量的上升会显著抑制小麦的生长,冬小麦各部分干重、全氮、叶绿素含量明显下降,渗透物质可溶性糖含量会上升;②低盐干旱胁迫互作改善冬小麦幼苗生长状况,叶绿素含量、各部分干物质累积、氮积累量以及可溶性糖含量最大,呈现出对盐旱复合胁迫的适应性;③高盐干旱胁迫互作会加剧对小麦幼苗的生长限制。因此,低盐胁迫下对冬小麦进行适度的干旱刺激可以促进小麦幼苗适应复合胁迫,有利于小麦幼苗生长。
中文摘要To investigate the physiological and biochemical characteristics of wheat seedlings under salinity and drought, an indoor pot experiment was conducted from March to May in 2017. Two NaCl concentrations of S1 and S2, two water contents of W1 and W2 were designed. The dry weights and the contents of total nitrogen, chlorophyll and soluble sugar of shoots and roots were measured for potted winter wheat. The results showed that:1) The increase of salinity significantly limited the growth of wheat. The dry weights of shoots and roots, total nitrogen and chlorophyll contents of winter wheat decreased significantly but the soluble sugar content increased.2) Interaction of low salt with drought alleviated the restriction on the growth of wheat seedlings, the dry weights of shoots and roots and the contents of nitrogen, chlorophyll and soluble sugar of winter wheat were highest.3) Interaction of high salinity with drought aggravated the restriction on the growth of wheat seedlings. The above results suggest that low salinity with moderate drought stress could stimulate stress effects of wheat, which is beneficial for the growth of wheat seedling.
收录类别CSCD
语种中文
CSCD记录号CSCD:6494572
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/28180
专题中科院海岸带环境过程与生态修复重点实验室
海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
作者单位1.中国科学院海岸带环境过程与生态修复重点实验室
2.烟台大学
3.中国农业大学
4.东营市科技情报研究所
推荐引用方式
GB/T 7714文佩,陈小兵,张乐乐,等. 盐旱交叉胁迫对各施氮水平下小麦苗期的影响[J]. 土壤,2019,51.0(002):324-329.
APA文佩.,陈小兵.,张乐乐.,李依霖.,齐铭君.,...&张立宾.(2019).盐旱交叉胁迫对各施氮水平下小麦苗期的影响.土壤,51.0(002),324-329.
MLA文佩,et al."盐旱交叉胁迫对各施氮水平下小麦苗期的影响".土壤 51.0.002(2019):324-329.
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