involves a type of deficit irrigation water management (M. Olmstead, personal communication). Water distribution under drip emitters varies both spatially and temporally ( Rolston et al., 1991 ). Stevens and Douglas (1994) found that grape root
; Fare et al., 1994 ; Keever and Cobb, 1985 ). The growth responses of container-grown plants using deficit irrigation regimes have been investigated and acceptable growth was measured when the growing substrate was allowed to dry to 40% to 75% of
-available water for container-grown woody shrubs ( Beeson, 2006 ), to study the effect of canopy closure on ET o ( Beeson, 2010 ), and to quantify daily water use for woody ornamentals ( Beeson, 2007 ). Deficit irrigation Mini-lysimeters were used to
diameters ranged from 6.7 to 9.6 mm, with a mean of 8.4 mm. At the onset of water deficit imposition, the fully autonomous Open_Irr irrigation system was observed to induce irrigation events corresponding to predetermined soil matric potential thresholds
, stress-degree-day; SW, short wave; TSD, temperature-stress-day; VPD, vapor pressure deficit; WI, withheld irrigation. 1 Postdoctoral Fellow. Current address: Dept. of Horticulture and Landscape Architecture, Washington State Univ., Pullman, WA 99164
promote increased crop productivity. Another technique that can be used to reduce water consumption in agriculture is regulated deficit irrigation (RDI). This technique consists of applying a certain level of water stress during the phenological phase of
on must P levels in grapevines is not known ( Schreiner et al., 2013 ). An irrigation treatment was imposed on ‘Pinot noir’ grapevines to understand if a water deficit applied between véraison and harvest would reduce must nutrient levels. A post
require precision irrigation management to conserve water, and there are many irrigation management strategies. Regulated deficit irrigation (RDI) is a technique that induces a level of water stress during periods where the fruits are less affected by
growth and leaf areas of L, which were under reduced irrigation for the first time, were less than the other treatments ( Fig. 5B ). This is interesting considering that R was also being deficit-irrigated but its leaf growth was similar to C and L that
information for precision irrigation and N management. Water deficit has an adverse effect on transpiration, which has been confirmed in sap flow studies for many woody tree species such as olive [ Olea europaea ( Fernández et al., 2001 ; Tognetti et al