干旱区生态环境知识资源中心(Arid): Trade-off between hydraulic sensitivity, root hydraulic conductivity and water use efficiency in grafted Prunus under water deficit

Arid

DOI	10.1016/j.agwat.2023.108284
	Trade-off between hydraulic sensitivity, root hydraulic conductivity and water use efficiency in grafted Prunus under water deficit
	Toro, Guillermo; Pastenes, Claudio; Salvatierra, Ariel; Pimientel, Paula
通讯作者	Pimientel, P
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2023
卷号	282
英文摘要	Sweet cherry is mainly cultivated in arid and semi-arid areas. In the last decade, these areas have experienced a dramatic reduction in rainfall, which has resulted in water shortage for sweet cherry. The use of specific root-stock and scion combinations could help improve the tolerance of plants to water shortage events. This study reports on the influence of rootstocks on whole-plant performance under water deficit as detected by hydraulic sensitivity, root hydraulic conductivity (Lp), water use efficiency and sugar content. Four Prunus rootstocks/scion combinations -'Bing/Colt', 'Lapins/Colt', 'Bing/Mx60', 'Lapins/Mx60', and two self-rooted rootstocks Colt and Maxma 60 -were acclimated for 30 days and then exposed to well-watered (WW) and water deficit (WD) conditions for 36 days. Whole-plant transpiration and growth were both influenced by WD, and two groups were identified based on responses: 'Bing/Colt', 'Bing/Mx60' and 'Mx60' had an early reduction (conservative strategy), whereas 'Lapins/Mx60', 'Lapins/Colt' and 'Colt' had late reduction (productive strategy) in transpi-ration as WD increased. Among the combinations, 'Lapins/Colt' and 'Colt' showed a remarkable growth response to the WD being less affected in shoot and root biomass. The 'Colt' rootstock maintained a higher psi gs50 (near-isohydric behavior) than combinations using the 'Mx60' rootstock (near anisohydric behavior). The relationship between Lp and the variation of psi pre-dawn-psi midday showed differences among rootstock/scion combinations, and under WD condition the reduction in Lp induced by WD affected the whole-plant WUE of combinations differ-ently. Sucrose and sorbitol content in leaves and roots of WD-tolerant combinations such as 'Colt' and 'Lapins/ Colt', showed a remarkable increase under WD condition. Our finding highlights the importance of the specific interaction between rootstock and scion, suggesting that combinations characterized by a higher water uptake capacity under conditions of lower water availability would be sustainable under minimal to moderate water deficit.
英文关键词	Cherry Drought Transpiration efficiency Hydroscape Plant hydraulic Sugar
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:000956667200001
WOS关键词	DROUGHT TOLERANCE ; ANISOHYDRIC BEHAVIOR ; LEAF ; SOIL ; CONDUCTANCE ; GRAPEVINE ; STRESS ; GROWTH ; CHERRY ; TRANSPIRATION
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/2XILL650/395058
推荐引用方式 GB/T 7714	Toro, Guillermo,Pastenes, Claudio,Salvatierra, Ariel,et al. Trade-off between hydraulic sensitivity, root hydraulic conductivity and water use efficiency in grafted Prunus under water deficit[J],2023,282.
APA	Toro, Guillermo,Pastenes, Claudio,Salvatierra, Ariel,&Pimientel, Paula.(2023).Trade-off between hydraulic sensitivity, root hydraulic conductivity and water use efficiency in grafted Prunus under water deficit.AGRICULTURAL WATER MANAGEMENT,282.
MLA	Toro, Guillermo,et al."Trade-off between hydraulic sensitivity, root hydraulic conductivity and water use efficiency in grafted Prunus under water deficit".AGRICULTURAL WATER MANAGEMENT 282(2023).