干旱区生态环境知识资源中心(Arid): Response and Modeling of Hybrid Maize Seed Vigor to Water Deficit at Different Growth Stages

Arid

DOI	10.3390/w12113289
	Response and Modeling of Hybrid Maize Seed Vigor to Water Deficit at Different Growth Stages
	Shi, Rongchao; Tong, Ling; Du, Taisheng; Shukla, Manoj K.
通讯作者	Du, TS
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:11
英文摘要	Research is imperative to predict seed vigor of hybrid maize production under water deficit in arid areas. Field experiments were conducted in 2018 and 2019 in arid areas of northwestern China to investigate the effects of different irrigation strategies at various growth stages with drip irrigation under film mulching on grain yield, kernel weight, seed protein content, and seed vigor of hybrid maize (Zea mays L.). Water deficit at vegetative, flowering, and grain-filling stages was considered and a total of 16 irrigation treatments was applied. A total of 12 indices of germination percentage, germination index (GI), shoot length (SL), and root length (RL) under different germination conditions (standard germination and accelerated aging); electrical conductivity (EC) of the leachate; and activities of peroxidase, catalase, and superoxide dismutase in seeds were measured and analyzed using the combinational evaluation method (CEM). Furthermore, five water production functions (Blank, Stewart, Rao, Jensen, and Minhas) were used to predict seed vigor evaluated by CEM under water deficit. The results showed that leachate EC was higher under water deficit than that under sufficient irrigation. The SL, RL, and GI of different germination conditions increased under water deficit at the flowering stage. The Rao model was considered the best fitted model to predict the vigor of hybrid maize seeds under water deficit, and an appropriate water deficit at the flowering stage is recommended to ensure high seed vigor of hybrid maize production with drip irrigation under film mulching. Our findings would be useful for reducing crop water use while ensuring seed vigor for hybrid maize production in arid areas.
英文关键词	seed quality maize management irrigation water stress
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000594128600001
WOS关键词	COMPREHENSIVE FRUIT-QUALITY ; DROUGHT STRESS ; GRAIN-YIELD ; SWEET CORN ; KERNEL COMPOSITION ; ARID REGION ; IRRIGATION ; GERMINATION ; NITROGEN ; PROTEIN
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	中国农业大学 ; New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327758
作者单位	[Shi, Rongchao; Tong, Ling; Du, Taisheng] China Agr Univ, Ctr Agr Water Res China, 17 Qing Hua East Rd, Beijing 100083, Peoples R China; [Shukla, Manoj K.] New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA
推荐引用方式 GB/T 7714	Shi, Rongchao,Tong, Ling,Du, Taisheng,et al. Response and Modeling of Hybrid Maize Seed Vigor to Water Deficit at Different Growth Stages[J]. 中国农业大学, New Mexico State University,2020,12(11).
APA	Shi, Rongchao,Tong, Ling,Du, Taisheng,&Shukla, Manoj K..(2020).Response and Modeling of Hybrid Maize Seed Vigor to Water Deficit at Different Growth Stages.WATER,12(11).
MLA	Shi, Rongchao,et al."Response and Modeling of Hybrid Maize Seed Vigor to Water Deficit at Different Growth Stages".WATER 12.11(2020).