干旱区生态环境知识资源中心(Arid): Response of three almond cultivars subjected to different irrigation regimes in Guadalquivir river basin

Arid

DOI	10.1016/j.agwat.2019.05.031
	Response of three almond cultivars subjected to different irrigation regimes in Guadalquivir river basin
	Gutierrez-Gordillo, S.1; Duran-Zuazo, V. H.2; Garcia-Tejero, I.1
通讯作者	Gutierrez-Gordillo, S.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	222 页码:72-81
英文摘要	Almond (Prunus dulcis Mill.) has been traditionally associated to marginal areas in Andalusia, being cultivated under rainfed agriculture conditions. In the last few years, it has been progressively introduced in many irrigated areas of the Guadalquivir river basin which has promoted a growing interest about irrigation water management for this crop ie. the potential irrigation requirements, or the best irrigation strategy under sub-optimal conditions (aiming at obtaining balanced nut yields, saving water without affecting yield). This work examines the response of three almond cultivars (cvs. Guara, Marta and Lauranne) subjected to different irrigation regimes in a semi-arid Mediterranean environment (SW Spain). The trial was conducted over two seasons (2017-2018), in a commercial orchard with three irrigation regimes: i) a full-irrigation treatment (F-1), which received 100% of crop evapotranspiration (ETC) as a control; ii) an over irrigated treatment (150-ETC), which received 150% of ETC during the whole irrigation period; and iii) a regulated deficit irrigation treatment (RDI 65) which was irrigated at 100% ETC during the whole irrigation season, except during the kernel-filling period, when it received the 65% of ETC. In order to assess the crop water status, the leaf water potential (Psi(leaf)) and the stomatal conductance to water vapour (g(s)) were measured. At the end of each season, the yield, kernel unit weight and irrigation water productivity were determined. Significant differences in physiological behaviour and yield responses among cultivars were found. According to the final yield obtained during the experimental seasons, Guara and Lauranne did not show significant improvements in the 150-ETC in relation to F-1 and RDI65, whereas cv. Marta showed significant improvements under 150-ETC. Moreover, yield response followed the physiological trend observed in the different irrigation treatments for each cultivar. Those cultivars (Guara and Lauranne) that had not shown significant differences in terms of yield, evidenced a similar pattern in terms of g(s), unlike Marta. The obtained results allow us to conclude that there is a clear differential response in terms of the cultivar, taking into account the adaptation capacity of different cultivars to different irrigation doses.
英文关键词	Deficit irrigation Crop physiological parameters Irrigation water productivity Nut yield
类型	Article
语种	英语
国家	Spain
收录类别	SCI-E
WOS记录号	WOS:000477784200008
WOS关键词	REGULATED DEFICIT IRRIGATION ; FRUIT-QUALITY ; WATER-STRESS ; YIELD ; TREES
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/2XILL650/214039
作者单位	1.Ctr IFAPA Las Torres, Ctra Sevilla Cazalla Km 12-2, Seville 41200, Spain; 2.Ctr IFAPA Camino Purchil, Camino Purchil S-N, Granada 18004, Spain
推荐引用方式 GB/T 7714	Gutierrez-Gordillo, S.,Duran-Zuazo, V. H.,Garcia-Tejero, I.. Response of three almond cultivars subjected to different irrigation regimes in Guadalquivir river basin[J],2019,222:72-81.
APA	Gutierrez-Gordillo, S.,Duran-Zuazo, V. H.,&Garcia-Tejero, I..(2019).Response of three almond cultivars subjected to different irrigation regimes in Guadalquivir river basin.AGRICULTURAL WATER MANAGEMENT,222,72-81.
MLA	Gutierrez-Gordillo, S.,et al."Response of three almond cultivars subjected to different irrigation regimes in Guadalquivir river basin".AGRICULTURAL WATER MANAGEMENT 222(2019):72-81.