Wheat cultivar mixtures increase grain yield under varied climate conditions
文献类型：期刊论文
| 作者 | Kong, Xiang; Li, Li3; Peng, Peng; Zhang, Kunpu2; Hu, Zhengjiang1; Wang, Xijiu1; Zhao, Guishen |
| 刊名 | BASIC AND APPLIED ECOLOGY
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 69页码:13-25 |
| 关键词 | Winter wheat Genetic diversity Climate change Yield Complexity |
| DOI | 10.1016/j.baae.2023.03.007 |
| 文献子类 | Article |
| 英文摘要 | Scaling current cereal production to meet the globally increasing food demand will be a challenge under climate change. Pre-vious studies have shown that crop diversification, such as intercropping, can increase crop yield, stability, resource-use effi- ciency and resistance to both biotic and abiotic stresses in agroecosystems. However, more evidence is needed to explain the influence of inter-annual climate variations on crop yield in the context of genetic diversity. Here, we conducted a field experi-ment over four years in the North China Plain to test the effect of genetic diversity on yield under varied climate conditions. We compared the performance of eight winter wheat cultivars in monocropping with that of mixed cropping of two (mixture -2), four (mixture-4), and eight (mixture-8) cultivars. Our results showed that the yields of all cultivar mixtures were higher than those of their component cultivars in monocropping from 2017 to 2020. In particular, the grain yields of mixture-4 and mix-ture-8 were significantly increased by 7.37% and 5.94% in the drier years (2017 and 2019), compared with that of the highest yield of local cultivar (LY502). From 2017 to 2020, yield components in wheat mixed cropping had synergetic effects that could offset the tradeoffs among them and obtained an optimized combination at population level. Moreover, the yield stability of all mixtures was higher than the weighted means of monocultures averaged across the four years. The cultivation of mixtures of wheat cultivars effectively alleviated the negative effect of high temperature stress on 1000-grain weight, and improved grain water use efficiency in the drier years. Our findings showed that enhancing wheat genetic diversity at population level can effectively promote grain yield under drought and high temperature, which can be considered as an ecological approach to cope with global climate change towards food security. (c) 2023 The Authors. Published by Elsevier GmbH on behalf of Gesellschaft fur okologie. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
| WOS关键词 | WINTER-WHEAT ; PRODUCTIVITY ; DIVERSITY ; BIODIVERSITY ; TEMPERATURE ; IMPACTS ; METAANALYSIS ; SENESCENCE ; COMPONENTS ; RESISTANCE |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000976632000001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200840]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Int Ecosyst Management Partnership, Beijing 100102, Peoples R China 3.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China 4.Bur Agr & Rural Affairs, Huantai 256400, Huantai County, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong, Xiang,Li, Li,Peng, Peng,et al. Wheat cultivar mixtures increase grain yield under varied climate conditions[J]. BASIC AND APPLIED ECOLOGY,2023,69:13-25. |
| APA | Kong, Xiang.,Li, Li.,Peng, Peng.,Zhang, Kunpu.,Hu, Zhengjiang.,...&Zhao, Guishen.(2023).Wheat cultivar mixtures increase grain yield under varied climate conditions.BASIC AND APPLIED ECOLOGY,69,13-25. |
| MLA | Kong, Xiang,et al."Wheat cultivar mixtures increase grain yield under varied climate conditions".BASIC AND APPLIED ECOLOGY 69(2023):13-25. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。