干旱区生态环境知识资源中心(Arid): The combination of limited irrigation and high plant density optimizes canopy structure and improves the water use efficiency of cotton

Arid

DOI	10.1016/j.agwat.2019.03.037
	The combination of limited irrigation and high plant density optimizes canopy structure and improves the water use efficiency of cotton
	Chen, Zongkui 1; Niu, Yuping 1; Zhao, Ruihai 1; Han, Chunli 1; Han, Huanyong 2; Luo, Honghai 1
通讯作者	Han, Huanyong ; Luo, Honghai
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	218 页码:139-148
英文摘要	Increasing plant density under insufficiency or deficit irrigation is considered a new water-saving technique in cotton production, especially in Xinjiang, China, an arid area with a short growing period. Increasing plant density reduces light intensity within the canopy; therefore, we hypothesized that resource use efficiency may be the main factor affecting cotton yield and water use efficiency under limited irrigation conditions. To test this hypothesis, 2-year field experiments were conducted to explore the effects of two irrigation patterns (I-500, conventional irrigation; I-425, limited irrigation) and three planting densities (D-12, 12; D-24, 24; D-36, 36 plants m(-2)) on cotton yield, fiber quality, light interception rate, canopy photosynthesis and irrigation water use efficiency (IWUE). I425D36 raised yield and IWUE by 1.40-22.4% and 13.4-34.5%, respectively, but it did not affect fiber quality compared with other treatments. Further, I425D36 increased the leaf area index and the top and middle-canopy light interception rates after 105 days after sowing, which improved the canopy apparent photosynthetic rate. Seed cotton yield was associated with leaf area index and the top- and bottom-canopy light interception rates. We conclude that irrigation of cotton with limited irrigation at a 425-mm level and a plant density at 36 plants m(-2) had significant benefits in terms of economized irrigation without reducing yield in arid areas.
英文关键词	Cotton Leaf area index Light interception rate Canopy apparent photosynthetic rate Yield
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000467512800014
WOS关键词	PHOTOSYNTHETIC CAPACITY ; STOMATAL CONDUCTANCE ; NET PHOTOSYNTHESIS ; DRIP IRRIGATION ; FIBER QUALITY ; UPLAND COTTON ; YIELD ; GROWTH ; NITROGEN ; DEFICIT
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/2XILL650/214022
作者单位	1.Shihezi Univ, Xinjiang Prod & Construct Grp, Key Lab Oasis Ecoagr, Shihezi 832003, Xinjiang, Peoples R China; 2.Xinjiang Acad Agr & Reclamat Sci, Cotton Inst, Shihezi 832003, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zongkui,Niu, Yuping,Zhao, Ruihai,et al. The combination of limited irrigation and high plant density optimizes canopy structure and improves the water use efficiency of cotton[J],2019,218:139-148.
APA	Chen, Zongkui,Niu, Yuping,Zhao, Ruihai,Han, Chunli,Han, Huanyong,&Luo, Honghai.(2019).The combination of limited irrigation and high plant density optimizes canopy structure and improves the water use efficiency of cotton.AGRICULTURAL WATER MANAGEMENT,218,139-148.
MLA	Chen, Zongkui,et al."The combination of limited irrigation and high plant density optimizes canopy structure and improves the water use efficiency of cotton".AGRICULTURAL WATER MANAGEMENT 218(2019):139-148.