Assessing water stress in a hedgerow olive orchard from sap flow and trunk diameter measurements

被引：31

作者：

Cuevas, M. V. ^{[1
]}

Martin-Palomo, M. J. ^{[2
]}

Diaz-Espejo, A. ^{[1
]}

Torres-Ruiz, J. M. ^{[1
]}

Rodriguez-Dominguez, C. M. ^{[1
]}

Perez-Martin, A. ^{[1
]}

Pino-Mejias, R. ^{[3
]}

Fernandez, J. E. ^{[1
]}

机构：

[1] Inst Recursos Nat & Agrobiol IRNAS CSIC, Seville 41080, Spain

[2] ETSIA, Dept Ciencias Agroforestales, Seville 41013, Spain

[3] Univ Seville, Dept Estadist & IO, E-41012 Seville, Spain

来源：

IRRIGATION SCIENCE | 2013年 / 31卷 / 04期

关键词：

REGULATED DEFICIT IRRIGATION; HEAT-PULSE; YIELD DETERMINATION; CELLULAR PROCESSES; TREES; GROWTH; OIL; PRODUCTIVITY; ARBEQUINA; ENDOCARP;

D O I：

10.1007/s00271-012-0357-x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

We used sap flow and trunk diameter measurements for assessing water stress in a high-density 'Arbequina' olive orchard with control trees irrigated to replace 100 % of the crop water needs, and 60RDI and 30RDI trees, in which irrigation replaced ca. 60 and 30 % of the control, respectively. We calculated the daily difference for both tree water consumption () and maximum trunk diameter (D (MXTD)) between RDI trees and control trees. The seasonal dynamics of agreed reasonably well with that of the stem water potential. We identified peculiarities on the response to changes in water stressing conditions, which must be taken into account when using the index. An analysis of the water stress variability in the orchard is required for choosing the instrumented trees. The reliability of the D (MXTD) index was poorer than that of . The maximum daily shrinkage (MDS) was not a reliable water stress indicator.

引用

页码：729 / 746

页数：18

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