您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effect of rice panicle size on paddy field CH4 emissions

文献类型： 外文期刊

作者： Jiang, Yu 1 ; Tian, Yunlu 2 ; Sun, Yanni 1 ; Zhang, Yi 1 ; Hang, Xiaoning 1 ; Deng, Aixi 4 ; Zhang, Jun 4 ; Zhang, Weijia 1 ;

作者机构： 1.Nanjing Agr Univ, Inst Appl Ecol, Nanjing 210095, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Inst Rice, Nanjing 210095, Jiangsu, Peoples R China

3.Chongqing Acad Agr Sci, Inst Agr Resources & Environm, Chongqing 401329, Peoples R China

4.Chinese Acad Agr Sci, Inst Crop Sci, Minist Agr, Key Lab Crop Physiol & Ecol, Beijing 100081, Peoples R China

关键词： Global warming;Food security;Greenhouse gas;Rice production;Spikelet number

期刊名称：BIOLOGY AND FERTILITY OF SOILS （ 影响因子：5.1； 五年影响因子：6.2 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Developing large rice (Oryza sativa L.) panicles has been widely regarded as an effective approach to increasing rice yield. However, it is unclear whether panicle size affects CH4 emissions from rice fields, especially during the reproductive stage. Here, we conducted two experiments (rice variety and mutant) to examine the effects of rice panicle size on CH4 emissions. The variety experiment under field conditions at two sites showed that rice yield was significantly and positively correlated with the spikelet number. Mean CH4 emissions during the reproductive stage were significantly and negatively correlated with spikelet number. The rice mutant experiment under pot and field conditions using a wild-type rice variety (WT) and its mutant (Mutant) demonstrated that CH4 emissions were significantly lower in the former with large panicles than in the later with small panicles, during the reproductive and grain filling stages (P < 0.01), whereas the rice yields showed an opposite. Root exudates and soil dissolved organic C concentration were significantly lower under the WT than under the Mutant. Soil CH4 production potential and mcrA gene copy number of the soil under Mutant were significantly higher than those of the soil under WT. There was no significant difference in soil CH4 oxidation potential and pmoA gene copy number between soils of these two rice varieties. Our results suggest that developing large panicles would benefit rice production for high yield with low CH4 emission.

  • 相关文献

[1]Direct-seeded rice increases nitrogen runoff losses in southeastern China. Zhang, Yuefang,Liu, Hongjiang,Guo, Zhi,Sheng, Jing,Chen, Liugen,Zheng, Jianchu,Zhang, Yuefang,Luo, Yiqi,Zhang, Chuansheng. 2018

[2]Straw enhanced CO2 and CH4 but decreased N2O emissions from flooded paddy soils: Changes in microbial community compositions. Wang, Ning,Yu, Jian-Guang,Zhao, Ya-Hui,Chang, Zhi-Zhou,Shi, Xiao-Xia,Ma, Lena Q.,Li, Hong-Bo,Ma, Lena Q.. 2018

[3]Treated domestic sewage irrigation significantly decreased the CH4, N2O and NH3 emissions from paddy fields with straw incorporation. Wang, Shaohua,Xu, Shanshan,Hou, Pengfu,Xue, Lihong,Yang, Linzhang.

[4]Ammonia and greenhouse gas emissions from different types of deep litter used for pig rearing. Zhang, Liping,Sheng, Jing,Zheng, Jianchu,Zhang, Yuefang,Chen, Liugen,Sun, Guofeng,Zheng, Jianchu.

[5]Seasonal and diurnal dynamics of physicochemical parameters and gas production in vertical water column of a eutrophic pond. Gao, Yan,Zhang, Zhenhua,Liu, Xinhong,Yi, Neng,Zhang, Li,Song, Wei,Wang, Yan,Yan, Shaohua,Gao, Yan,Mazumder, Asit,Mazumder, Asit.

[6]Integrative effects of soil tillage and straw management on crop yields and greenhouse gas emissions in a rice-wheat cropping system. Zhang, Mingqian,Bian, Xinmin,Zhang, Weijian,Zheng, Jianchu,Chen, Liugen,Shen, Mingxing,Zhang, Xin,Zhang, Jun,Zhang, Weijian.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江苏省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台