干旱区生态环境知识资源中心(Arid): Response of Maize (Zea mays L.) to Drought under Salinity and Boron Stress in the Atacama Desert

Arid

DOI	10.3390/plants12071519
	Response of Maize (Zea mays L.) to Drought under Salinity and Boron Stress in the Atacama Desert
	Riveros-Burgos, Camilo; Bustos-Pena, Richard; Esteban-Condori, Wladimir; Bastias, Elizabeth
通讯作者	Bastías, E
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2023
卷号	12 期号:7
英文摘要	The Lluta valley in northern Chile is a hyper-arid region with annual precipitation lower than 1.1 mm, and high levels of boron (B) from alluvial deposits are present together with other salts that originated from the Cretaceous. Under these abiotic conditions, the 'lluteno' maize (Zea mays L.) is of interest because it has adapted to the Lluta valley with high salinity levels and B excess in the soil and irrigation water. Water and salt stress coincide in heavily irrigated hyper-arid agricultural areas, yet they are usually studied in isolation. We investigated in field conditions the combined effects of drought (22 days with no irrigation) under salinity (ECe: 5.5 mS cm(-1); Na+: 17.8 meq L-1) and B (21.1 meq L-1) stress on physiology, growth, yield, and hourly water relations. The results allow to hypothesize that the measurement of the pre-dawn water potential represents the balance between the water potential of the soil and the root. Besides, under drought a significant effect of irrigation and time interaction was observed presenting a high differential between the leaf and stem water potential in both phenological stages. Furthermore, a decrease in net assimilation was observed, and it could be explained in part by non-stomatal factors such as the high radiation and temperature observed at the end of the season. Despite the drought, the cobs did not present a significantly lower quality compared to the cobs of plants without stress.
英文关键词	water potential leaf gas exchange grain yield Lluta valley
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000969957900001
WOS关键词	WATER-STRESS ; DEFICIT IRRIGATION ; SYSTEM ; GROWTH ; YIELD ; EVAPOTRANSPIRATION ; CULTIVARS ; AMYLACEA ; SORGHUM ; REGION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398066
推荐引用方式 GB/T 7714	Riveros-Burgos, Camilo,Bustos-Pena, Richard,Esteban-Condori, Wladimir,et al. Response of Maize (Zea mays L.) to Drought under Salinity and Boron Stress in the Atacama Desert[J],2023,12(7).
APA	Riveros-Burgos, Camilo,Bustos-Pena, Richard,Esteban-Condori, Wladimir,&Bastias, Elizabeth.(2023).Response of Maize (Zea mays L.) to Drought under Salinity and Boron Stress in the Atacama Desert.PLANTS-BASEL,12(7).
MLA	Riveros-Burgos, Camilo,et al."Response of Maize (Zea mays L.) to Drought under Salinity and Boron Stress in the Atacama Desert".PLANTS-BASEL 12.7(2023).