干旱区生态环境知识资源中心(Arid): Irrigation-Yield Production Functions and Irrigation Water Use Efficiency Response of Drought-Tolerant and Non-Drought-Tolerant Maize Hybrids under Different Irrigation Levels, Population Densities, and Environments

Arid

DOI	10.3390/su12010358
	Irrigation-Yield Production Functions and Irrigation Water Use Efficiency Response of Drought-Tolerant and Non-Drought-Tolerant Maize Hybrids under Different Irrigation Levels, Population Densities, and Environments
	Irmak, Suat 1; Mohammed, Ali T.1; Kranz, William 1; Yonts, C. D.1; van Donk, Simon 2
通讯作者	Irmak, Suat
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2020
卷号	12 期号:1
英文摘要	Irrigation-yield production functions (IYPFs), irrigation water use efficiency (IWUE), and grain production per unit of applied irrigation of non-drought-tolerant (NDT) and drought-tolerant (DT) maize (Zea mays L.) hybrids were quantified in four locations with different climates in Nebraska [Concord (sub-humid), Clay Center (transition zone between sub-humid and semi-arid); North Platte (semi-arid); and, Scottsbluff (semi-arid)] during three growing seasons (2010, 2011, and 2012) at three irrigation levels (fully-irrigated treatment (FIT), early cut-off (ECOT), and rainfed (RFT)) under two plant population densities (PPDs) (low-PPD; 59,300 plants ha(-1); and, high-PPD, 84,000 plants ha(-1)). Overall, DT hybrids' performance was superior to NDT hybrid at RFT, ECT, and FIT conditions, as confirmed by the yield response, IYPF and IWUE when all locations, years, and PPDs were averaged. The yield response to water was greater with the high-PPD than the low-PPD in most cases. The magnitude of the highest yields for DT hybrids ranged from 7.3 (low-PPD) to 8.5% (high-PPD) under RFT, 3.7 (low-PPD) to 9.6% (high-PPD) under ECOT, and 3.9% (high-PPD) under FIT higher than NDT hybrid. Relatively, DT hybrids can resist drought-stress conditions longer than NDT hybrid with fewer penalties in yield reduction and maintain comparable or even higher yield production at non-stress-water conditions.
英文关键词	drought-tolerant maize plant population production function irrigation water use efficiency water-yield relations
类型	Article
语种	英语
国家	USA
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000521955600358
WOS关键词	GRAIN-YIELD ; BASAL EVAPOTRANSPIRATION ; CORN ; CROP ; STRESS ; TRANSITION ; HEAT
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315608
作者单位	1.Univ Nebraska, Dept Biol Syst Engn, Lincoln, NE 68583 USA; 2.Iteris Inc, North Platte, NE 69101 USA
推荐引用方式 GB/T 7714	Irmak, Suat,Mohammed, Ali T.,Kranz, William,et al. Irrigation-Yield Production Functions and Irrigation Water Use Efficiency Response of Drought-Tolerant and Non-Drought-Tolerant Maize Hybrids under Different Irrigation Levels, Population Densities, and Environments[J],2020,12(1).
APA	Irmak, Suat,Mohammed, Ali T.,Kranz, William,Yonts, C. D.,&van Donk, Simon.(2020).Irrigation-Yield Production Functions and Irrigation Water Use Efficiency Response of Drought-Tolerant and Non-Drought-Tolerant Maize Hybrids under Different Irrigation Levels, Population Densities, and Environments.SUSTAINABILITY,12(1).
MLA	Irmak, Suat,et al."Irrigation-Yield Production Functions and Irrigation Water Use Efficiency Response of Drought-Tolerant and Non-Drought-Tolerant Maize Hybrids under Different Irrigation Levels, Population Densities, and Environments".SUSTAINABILITY 12.1(2020).