Arid
DOI10.1007/s00271-016-0523-7
Maximum daily trunk shrinkage for estimating water needs and scheduling regulated deficit irrigation in peach trees
Manuel Miras-Avalos, Jose; Perez-Sarmiento, Francisco; Alcobendas, Rosalia; Jose Alarcon, Juan; Mounzer, Oussama; Nicolas, Emilio
通讯作者Nicolas, Emilio
来源期刊IRRIGATION SCIENCE
ISSN0342-7188
EISSN1432-1319
出版年2017
卷号35期号:1页码:69-82
英文摘要

Water scarcity and increasing water use in many socioeconomic sectors lead to an urgent need to improve irrigation management, especially in arid and semiarid areas, such as southeast Spain. For this reason, we studied, during 3 years, the possibility of scheduling regulated deficit irrigation (RDI) using maximum daily shrinkage (MDS) measurements on peach trees [Prunus persica (L.) Batsch cv. "Catherine"] in Murcia (Spain). Three irrigation treatments were established: a control treatment (C-ET0), irrigated above the estimated crop water requirements, and two treatments based on measurements of maximum daily trunk shrinkage signal intensity (MDS SI), namely a precision treatment (C-MDS) using a threshold value of MDS SI = 1 during all the period and a RDI treatment using MDS SI = 1 all the period except for stage II and post-harvest where MDS SI = 2. The low coefficients of variation for MDS SI indicated that this information was sufficient to adjust the irrigation schedule to maintain MDS SI close to the selected threshold values. Maintaining the MDS SI close to unity throughout the growing season allowed us to estimate peach water requirements (ETc). The RDI treatment significantly reduced pruning weight, but no differences were found in terms of reproductive growth and yield. Moreover, RDI increased water productivity and fruit quality, since soluble solids content and maturity index were higher in the RDI treatment compared to C-ET0 and C-MDS. This study demonstrated that irrigation scheduling in peach trees based exclusively on MDS SI was feasible without detrimental effects on yield and fruit quality.


类型Article
语种英语
国家Spain
收录类别SCI-E
WOS记录号WOS:000393636900006
WOS关键词LEMON TREES ; CROP LOAD ; NECTARINE TREES ; FRUIT-QUALITY ; ALMOND TREES ; PLUM TREES ; SAP FLOW ; STRESS ; DIAMETER ; 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/2XILL650/199885
作者单位CSIC, CEBAS, Dept Riego, Campus Univ Espinardo, Murcia 30100, Spain
推荐引用方式
GB/T 7714
Manuel Miras-Avalos, Jose,Perez-Sarmiento, Francisco,Alcobendas, Rosalia,et al. Maximum daily trunk shrinkage for estimating water needs and scheduling regulated deficit irrigation in peach trees[J],2017,35(1):69-82.
APA Manuel Miras-Avalos, Jose,Perez-Sarmiento, Francisco,Alcobendas, Rosalia,Jose Alarcon, Juan,Mounzer, Oussama,&Nicolas, Emilio.(2017).Maximum daily trunk shrinkage for estimating water needs and scheduling regulated deficit irrigation in peach trees.IRRIGATION SCIENCE,35(1),69-82.
MLA Manuel Miras-Avalos, Jose,et al."Maximum daily trunk shrinkage for estimating water needs and scheduling regulated deficit irrigation in peach trees".IRRIGATION SCIENCE 35.1(2017):69-82.
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