干旱区生态环境知识资源中心(Arid): Moderate Drip Irrigation Level with Low Mepiquat Chloride Application Increases Cotton Lint Yield by Improving Leaf Photosynthetic Rate and Reproductive Organ Biomass Accumulation in Arid Region

Arid

DOI	10.3390/agronomy9120834
	Moderate Drip Irrigation Level with Low Mepiquat Chloride Application Increases Cotton Lint Yield by Improving Leaf Photosynthetic Rate and Reproductive Organ Biomass Accumulation in Arid Region
	Gao, Hongyun 1; Ma, Hui 1; Khan, Aziz 1; Xia, Jun 1; Hao, Xianzhe 1; Wang, Fangyong 2; Luo, Honghai 1
通讯作者	Wang, Fangyong ; Luo, Honghai
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2019
卷号	9 期号:12
英文摘要	Due to the changing climate, frequent episodes of drought have threatened cotton lint yield by offsetting their physiological and biochemical functioning. An efficient use of irrigation water can help to produce more crops per drop in cotton production systems. We assume that an optimal drip irrigation with low mepiquat chloride application could increase water productivity (WP) and maintain lint yields by enhancing leaf functional characteristics. A 2-year field experiment determines the response of irrigation regimes (600 (W-1), 540 (W-2), 480 (W-3), 420 (W-4) 360 (W-5) m(3) ha(-1)) on cotton growth, photosynthesis, fiber quality, biomass accumulation and yield. Mepiquat chloride was sprayed in different concentration at various growth phases (see material section). Result showed that W-1 increased leaf area index (LAI) by 5.3-36.0%, net photosynthetic rate (Pn) by 3.4-23.2%, chlorophyll content (Chl) by 1.3-12.0% than other treatments. Improvements in these attributes led to higher lint yield. However, no differences were observed between W-1 and W-2 in terms of lint and seed cotton yield, but W-2 increased WP by 3.7% in both years. Compared with other counterparts, W-2 had the largest LAI (4.3-32.1%) at the full boll stage and prolonged reproductive organ biomass (ROB) accumulation by 30-35 d during the fast accumulation period (FAP). LAI, the average (V-T) and maximum (V-M) biomass accumulation rates of ROB were positively correlated with lint yield. In conclusion, the drip irrigation level of 540-600 m(3) ha(-1) with reduced MC application is a good strategy to achieve higher WP and lint yield by improving leaf photosynthetic traits and more reproductive organ biomass accumulation.
英文关键词	drip irrigation quota cotton lint yield water productivity biomass
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000507280400011
WOS关键词	WATER-USE EFFICIENCY ; GOSSYPIUM-HIRSUTUM L. ; DEFICIT IRRIGATION ; CHLOROPHYLL CONTENT ; CANOPY STRUCTURE ; MAIZE ; GROWTH ; COMPONENTS ; RESPONSES ; QUALITY
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
EI主题词	2019-12-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311219
作者单位	1.Shihezi Univ, Key Lab Oasis Ecoagr Xinjiang Prod & Construct Co, 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	Gao, Hongyun,Ma, Hui,Khan, Aziz,et al. Moderate Drip Irrigation Level with Low Mepiquat Chloride Application Increases Cotton Lint Yield by Improving Leaf Photosynthetic Rate and Reproductive Organ Biomass Accumulation in Arid Region[J],2019,9(12).
APA	Gao, Hongyun.,Ma, Hui.,Khan, Aziz.,Xia, Jun.,Hao, Xianzhe.,...&Luo, Honghai.(2019).Moderate Drip Irrigation Level with Low Mepiquat Chloride Application Increases Cotton Lint Yield by Improving Leaf Photosynthetic Rate and Reproductive Organ Biomass Accumulation in Arid Region.AGRONOMY-BASEL,9(12).
MLA	Gao, Hongyun,et al."Moderate Drip Irrigation Level with Low Mepiquat Chloride Application Increases Cotton Lint Yield by Improving Leaf Photosynthetic Rate and Reproductive Organ Biomass Accumulation in Arid Region".AGRONOMY-BASEL 9.12(2019).