干旱区生态环境知识资源中心(Arid): Continuous regulated deficit irrigation enhances peanut water use efficiency and drought resistance

Arid

DOI	10.1016/j.agwat.2021.106997
	Continuous regulated deficit irrigation enhances peanut water use efficiency and drought resistance
	Zhang, Junxiao; Wang, Qianqing; Xia, Guimin; Wu, Qi; Chi, Daocai
通讯作者	Xia, GM ; Wu, Q (corresponding author), Shenyang Agr Univ, Coll Water Conservancy, Shenyang 110866, Liaoning, Peoples R China.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	255
英文摘要	Regulated deficit irrigation (RDI) is an important means by which the water use efficiency (WUE) of peanut can be improved and facilitates the sustainable development of the peanut industry. However, most studies of RDI have only focused on single growth periods, which limits the water-saving potential. In this study, continuous regulated deficit irrigation (CRDI) was used to significantly improve the WUE of peanut through an experiment employing a split-plot design. Three levels of water deficit treatment, severe (H1/J1, 45% field capacity), moderate (H2/J2, 55% field capacity), and mild (H3/J3, 65% field capacity), were applied in the flower pegging stage (H) and the pod setting stage (J). Moderate CRDI (H2J2) stably improved the instantaneous water use efficiency of peanut leaves. Yield was not significantly decreased under the H2J2 treatment, and was only 4.47% lower than that of the H3J2 treatment, in which the yield was the highest. The highest WUE was observed in the H2J2 treatment (1.87 kg.mxe213; 3). The first time that the soil water content reached the lower limit in the pod setting stage, the proline content in the H1J1 treatment was 13.57 times higher than that in the H3J3, indicating that peanuts in the H1J1 treatment experienced substantial drought stress. The second time that the lower limit of soil water content was reached, the proline content in the H1J1 treatment was 7.14 times higher than that in the H3J3 treatment, indicating that the peanut drought resistance was improved by the drought-rehydration exercise at the flower pegging stage and drought stress was alleviated in the pod setting stage. We conclude that moderate CRDI is beneficial to peanut drought resistance for arid and semi-arid areas, and significantly promoted higher WUE.
英文关键词	Continuous regulated deficit irrigation Peanut Drought resistance Yield Proline content Gas exchange parameters
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000687239600004
WOS关键词	CLIMATE-CHANGE ; WINTER-WHEAT ; YIELD ; RESPONSES ; GENOTYPES ; STRESS ; PHOTOSYNTHESIS ; ACCUMULATION ; PRODUCTIVITY ; QUALITY
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362362
作者单位	[Zhang, Junxiao; Wang, Qianqing; Xia, Guimin; Wu, Qi; Chi, Daocai] Shenyang Agr Univ, Coll Water Conservancy, Shenyang 110866, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junxiao,Wang, Qianqing,Xia, Guimin,et al. Continuous regulated deficit irrigation enhances peanut water use efficiency and drought resistance[J],2021,255.
APA	Zhang, Junxiao,Wang, Qianqing,Xia, Guimin,Wu, Qi,&Chi, Daocai.(2021).Continuous regulated deficit irrigation enhances peanut water use efficiency and drought resistance.AGRICULTURAL WATER MANAGEMENT,255.
MLA	Zhang, Junxiao,et al."Continuous regulated deficit irrigation enhances peanut water use efficiency and drought resistance".AGRICULTURAL WATER MANAGEMENT 255(2021).