干旱区生态环境知识资源中心(Arid): Reducing the risk of onion bacterial diseases through managing irrigation frequency and final irrigation timing

Arid

DOI	10.1016/j.agwat.2023.108476
	Reducing the risk of onion bacterial diseases through managing irrigation frequency and final irrigation timing
	Belo, Tessa R.; du Toit, Lindsey J.; Waters, Timothy D.; Derie, Michael L.; Schacht, Betsy; Lahue, Gabriel T.
通讯作者	Lahue, GT
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2023
卷号	288
英文摘要	Onion bacterial diseases pose a serious economic risk to growers as they can lead to catastrophic crop losses. Moisture in the plant canopy plays a critical role in onion bacterial disease development by dispersing the pathogens onto plants (e.g., in splashing water) and keeping conditions conducive for bacterial growth. For this reason, irrigation management can be a promising avenue for controlling bacterial diseases in regions where irrigation is used widely, particularly overhead irrigation. This study investigated the effects of in-season irrigation frequency and timing of the final irrigation on onion bacterial bulb rot and marketable bulb yield over the 2020 and 2021 growing seasons in Washington State's semi-arid Columbia Basin, using overhead irrigation. Irrigating twice as often but for shorter periods did not increase the incidence of onion bacterial diseases or affect yield compared to longer, less frequent irrigation events under the conditions of this experiment. However, timing of the final irrigation did influence bacterial disease incidence. Irrigating until the tops (leaves and necks) had fallen over on 90% of onion plants led to culling of more bulbs at harvest as a result of bacterial rot and more bulbs with bacterial rot after five months in storage compared to plots in which irrigation was stopped two weeks earlier, at 5-10% tops down. Ending irrigation at 5-10% tops down did not reduce marketable yield or affect bulb size distribution. In semi-arid regions, careful irrigation management can be an important part of managing onion bacterial diseases, particularly at the end of the season when onion plants are most vulnerable to neck and bulb infection.
英文关键词	Allium cepa L. Bacterial bulb rot Pantoea agglomerans Burkholderia gladioli pv. alliicola Irrigation scheduling Overhead irrigation
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001063349500001
WOS关键词	PANTOEA-ANANATIS ; SOFT-ROT ; CAUSAL AGENT ; MANAGEMENT ; THRIPS ; WATER
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/2XILL650/395091
推荐引用方式 GB/T 7714	Belo, Tessa R.,du Toit, Lindsey J.,Waters, Timothy D.,et al. Reducing the risk of onion bacterial diseases through managing irrigation frequency and final irrigation timing[J],2023,288.
APA	Belo, Tessa R.,du Toit, Lindsey J.,Waters, Timothy D.,Derie, Michael L.,Schacht, Betsy,&Lahue, Gabriel T..(2023).Reducing the risk of onion bacterial diseases through managing irrigation frequency and final irrigation timing.AGRICULTURAL WATER MANAGEMENT,288.
MLA	Belo, Tessa R.,et al."Reducing the risk of onion bacterial diseases through managing irrigation frequency and final irrigation timing".AGRICULTURAL WATER MANAGEMENT 288(2023).