Effects of Stress of Copper,Cadmium on Carbon and Nitrogen Assimilate Translocation in Winter Wheat

您当前的位置：

首页 >

文章列表页 >

Effects of Stress of Copper,Cadmium on Carbon and Nitrogen Assimilate Translocation in Winter Wheat

更新时间：2024-11-07

- Effects of Stress of Copper,Cadmium on Carbon and Nitrogen Assimilate Translocation in Winter Wheat
- Issue 1, Pages: 117-120(2006)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
移动端阅览
Effects of Stress of Copper,Cadmium on Carbon and Nitrogen Assimilate Translocation in Winter Wheat[J]. 2006, (1): 117-120.
DOI：

Effects of Stress of Copper,Cadmium on Carbon and Nitrogen Assimilate Translocation in Winter Wheat[J]. 2006, (1): 117-120. DOI：

摘要

在盆栽试验条件下，选用铜、镉两种金属元素各设置3个浓度水平，即Cu，（100mg／kg），Cu2（200mg／kg），Cu3（300mg／kg）和Cd1（10mg／kg），Cd2（50mg／kg），Cd3（100mg／kg）共6个处理，以不施金属元素处理为对照．研究了Cu。Cd胁迫对冬小麦碳氨运转的影响。结果表明，与对照相比，铜、镉处理降低了小麦叶片、茎鞘、颖壳等营养器官花前贮藏物质再运转量和再运转率以及花前营养器官总运转量和运转率。降低了粒重。其中以Cu2，Cd2处理对叶片影响最大，Cu3，Cd2处理对茎鞘、颖壳穗轴和总运转量影响最大。小麦叶片、茎鞘、颖壳等营养器官花前贮藏氮索再运转量和总运转量随铜、镉施用浓度的增加而降低，籽粒氨素积累量也随之降低，而各营养器官花前贮藏氮素再运转率和总运转率的变化较为复杂。Cu。Cd对籽粒产量、淀粉和蛋白质含量的影响均表现为随施用浓度增加而降低的趋势。

Abstract

Effects of stress of copper

cadmium on carbon and nitrogen assimilate translocation in winter wheat were investigated in a potted plant culture experiment.The six treatments were Cu_1(100 mg/kg)

Cu_2(200 mg/kg)

Cu_3(300 mg/kg) and Cd_1(10 mg/kg)

Cd_2(50 mg/kg)

Cd_3(100 mg/kg)

and CK(0mg/kg) was no heavy metal.The results showed that

compared with CK

Cd reduced the amounts and remobilization rate of pre-anthesis stored assimilates and total amount of pre-anthesis stored assimilate and grain weight.Effects of Cu_2

Cd_2 treatments on that of leaf and Cu_3

Cd_2 treatments on that of stalk and sheath and total amount were the maximum.The amounts of pre-anthesis stored nitrogen and nitrogen accumulation in grain were reduced with increasing of the concentration of copper and cadmium.But changes of remobilization rate of pre-anthesis stored nitrogen were complicated.The grain yield and content of starch and protein were reduced with increasing of the concentration of copper and cadmium.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Stress of Copper,Cadmium on Carbon and Nitrogen Assimilate Translocation in Winter Wheat

Effects of Brackish Water with Different Sodium-Potassium Ratios on Soil Water-Salt Characteristics and Winter Wheat Growth

Effects of Saline Water Irrigation with Different Concentrations on Soil Water and Salt Distribution and Growth of Winter Wheat

Transformation of Chemical Forms and Migration Characteristics of Cadmium and Selenium During Soil Formation in Black Rock Series

Effects of Tillage Practices on Erosion and Winter Wheat Yield on Sloping Dryland

Related Author

XIA Lai-kun

GUO Tian-cai

ZHU Yun-ji

KANG Guo-zhang

WANG Chen-yang

GAO Weiqiang

ZHANG Tibin

TONG Jiankang

Related Institution

Institute for Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Yangling

Institute of Soil and Water Conservation, Northwest A&F University, Yangling

College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling

Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

⁰