期刊论文

Effect of pH Value and Cd Content of Soil on Yield and Cd Accumulation in Different Organs of Rice

中文

核农学报

1000-8551

2019

33

5

988-998

10.11869/j.issn.100-8551.2019.05.0988

国家重点研发计划“粮食丰产增效科技创新”重点专项(2018YFD0301005、2017YFD0301500) 国家自然科学基金项目(31171494) 农业部行业计划项目(201503123-05) 湖南省教育厅科研项目(17C0771).

本校为第一机构

为探明水稻产量与镉积累分配对土壤pH值和镉含量的响应,以3个籽粒Cd含量差异明显的晚稻品种(天优华占,TY;星2号,X2;湘晚籼13号,XW)为试验材料,分别于不同pH值稻田研究土壤镉(Cd)含量对水稻产量和不同器官Cd累积的影响,并比较了品种间差异。结果表明,水稻产量因土壤 pH值下降而下降,且品种间降幅差异明显,以X2最大(21. 72% ~ 33. 81%) ,XW最小(3. 05% ~ 17. 71%) ;添加0. 5 mg·kg~(-1)Cd时水稻减产不显著,但添加1. 0 mg·kg~(-1)Cd时各品种均显著减产,且其降幅与品种和土壤pH值有关,X2和XW在酸化条件下降幅较大,而TY在正常pH条件下降幅较大。植株(整株) Cd含量存在品种间差异,各品种植株Cd含量均...

Effects of Cd content in soil on rice yield and Cd accumulation were investigated in paddy field with different pH with three late rice varieties with different Cd content in grains,Tianyouhuazhan (TY) ,Xing No. 2 (X2) and Xiangwanxian No.13 (XW) ,as materials,and the differences among varieties were compared to probe the response of rice yield and Cd accumulation and distribution to soil pH and Cd content. The results showed that rice yield was decreased with the reduce of soil pH,while the decreasing range was different among varieties; that ...