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Deficit Irrigation and Water Conservation
2020In this chapter, we tackled some of the concepts and definitions used in application of deficit irrigation instead of full irrigation as a technology aims at conserving irrigation water. Both water use efficiency and water productivity are important estimators in the assessment of the effect of deficit irrigation.
Samiha Ouda, Tahany Noreldin
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Increasing Northern Hemisphere water deficit
Climatic Change, 2015A monthly water-balance model is used with CRUTS3.1 gridded monthly precipitation and potential evapotranspiration (PET) data to examine changes in global water deficit (PET minus actual evapotranspiration) for the Northern Hemisphere (NH) for the years 1905 through 2009.
Gregory J. McCabe, David M. Wolock
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Tree water deficit and dynamic source water partitioning
Hydrological Processes, 2020AbstractThe stable isotopes of hydrogen and oxygen (δ2H and δ18O, respectively) have been widely used to investigate tree water source partitioning. These tracers have shed new light on patterns of tree water use in time and space. However, there are several limiting factors to this methodology (e.g., the difficult assessment of isotope fractionation ...
Magali F. Nehemy +5 more
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Water deficit in plant communities
Canadian Journal of Botany, 1970Comparative investigations within the two different plant communities of Croatia (Fagetum silvaticae croaticum abietetosum Ht and Querco-Carpinetum croaticum erythronietosum Ht) indicate that (1) the two communities have their own range of water deficit values, (2) the Dw values are dependent on the capability of the species to regulate their water ...
M. Gračanin +3 more
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Plant responses to water deficit
Trends in Plant Science, 1997Plant responses to water deficit are dependent on the amount of water lost, the rate of loss and the duration of the stressed condition. The characterization of a large number of genes induced by stresses involving water deficit has significantly improved understanding of the response.
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Water-deficit-responsive proteins in maritime pine
Plant Molecular Biology, 1998Two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) was used to identify drought-responsive proteins during progressive water deprivation of two-year old maritime pine seedlings. Stress was applied by withholding water during vegetative growth. Needles were sampled before, during and after the stress.
Costa, P. +4 more
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Agronomy Journal, 2013
Methods that estimate the probability of agricultural drought using atmospheric data can be widely applied but have not been compared with actual drought occurrence indicated by soil moisture measurements. Our objectives were to develop a drought probability assessment method using long‐term measurements of soil water deficits (SWDs) and to compare the
Guilherme M. Torres +2 more
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Methods that estimate the probability of agricultural drought using atmospheric data can be widely applied but have not been compared with actual drought occurrence indicated by soil moisture measurements. Our objectives were to develop a drought probability assessment method using long‐term measurements of soil water deficits (SWDs) and to compare the
Guilherme M. Torres +2 more
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DYNAMIC ROOT RESPONSES TO WATER DEFICITS
Soil Science, 1992Water absorption is influenced by the geometric distribution of viable roots and the availability of water at root surfaces. Utilization of additional plant energy for the extensive and localized development of root systems is a high risk investment of carbon by the plant, especially during short ...
A. J. M. SMUCKER, R. M. AIKEN
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Water Deficits—Irrigation Design and Programming
Journal of the Irrigation and Drainage Division, 1972Irrigation system design and economic analysis of proposed irrigation schemes require quantitative prediction of relationships between crop production and water use. In keeping with recent irrigation design practice, a comprehensive table is presented to update and add to earlier information defining the limits of allowable soil water depletion prior ...
Robert M. Hagan, Ian J. Stewart
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