干旱区生态环境知识资源中心(Arid): Winter Wheat Resistant to Increases in Rain and Snow Intensity in a Semi-Arid System

Arid

DOI	10.3390/agronomy11040751
	Winter Wheat Resistant to Increases in Rain and Snow Intensity in a Semi-Arid System
	Holdrege, Martin C.; Beard, Karen H.; Kulmatiski, Andrew
通讯作者	Holdrege, MC (corresponding author), Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA.
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2021
卷号	11 期号:4
英文摘要	As the atmosphere warms, precipitation events have been predicted and observed to become fewer and larger. Changes in precipitation patterns can have large effects on dryland agricultural production, but experimental tests on the effects of changing precipitation intensity are limited. Over 3 years, we tested the effects of increased precipitation intensity on winter wheat (Triticum aestivum L.; Promontory variety) in a temperate dryland agricultural system that was on a rotation of crop and fallow years. We used 11 (2.1 x 2.5 m) shelters to collect and redeposit rain and snow as larger, more intense events. Total precipitation was the same in all plots, but event sizes in each plot varied from 1 to 18 mm. Treatments increased soil water availability, but winter wheat biomass and grain yield did not differ among treatments. Similarly, other measured plant growth responses, including vegetation greenness, leaf area index, canopy temperature, photochemical efficiency, root area, and new root growth, did not differ among treatments. Results indicate that at least in the semiarid climate and silt loam soils studied here, anticipated increases in precipitation intensity are unlikely to affect winter wheat production negatively. Further, increased precipitation intensity may mitigate water stress caused by increasing temperatures and encourage the use of wheat varieties that utilize deeper, later season soil water.
英文关键词	dryland agriculture precipitation manipulation precipitation variability winter wheat
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:000642658400001
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368895
作者单位	[Holdrege, Martin C.] Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA; Utah State Univ, Ecol Ctr, Logan, UT 84322 USA
推荐引用方式 GB/T 7714	Holdrege, Martin C.,Beard, Karen H.,Kulmatiski, Andrew. Winter Wheat Resistant to Increases in Rain and Snow Intensity in a Semi-Arid System[J],2021,11(4).
APA	Holdrege, Martin C.,Beard, Karen H.,&Kulmatiski, Andrew.(2021).Winter Wheat Resistant to Increases in Rain and Snow Intensity in a Semi-Arid System.AGRONOMY-BASEL,11(4).
MLA	Holdrege, Martin C.,et al."Winter Wheat Resistant to Increases in Rain and Snow Intensity in a Semi-Arid System".AGRONOMY-BASEL 11.4(2021).