Transpiration response of Atriplex nummularia Lindl. and upland cotton vegetation to soil-moisture stress

Palmer, John H.; Trickett, E.S.; Linacre, Edward

doi:10.1016/0002-1571(64)90036-6

Cited by 15 publications

(5 citation statements)

References 14 publications

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“…He reported relations between rET and SWP for alfalfa (Medicago sativa) grown in the field, corn (Zea rnays) grown in shallow containers (Denmead and Shaw 1962), birdfoot trefoil (Lotus corniculatus) grown in pots (Gardner and Elhig 1963) and cotton (Gossypium sp.) grown in containers in a greenhouse (Palmer et al 1964). The threshold values at which rET departed from 1 ranged from -0.015 MPa for the corn down to -1 MPa for the cotton.…”

Section: Discussionmentioning

confidence: 99%

Relations between relative evapotranspiration and predawn leaf water potential in soybean grown in several locations

Flura

Belabbes

Kosuth³

et al. 1992

Irrig Sci

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The measurement of water consumption in the field is normally restricted to research purposes, although the development of practical field criteria for timing water application is required to improve crop productivity. To develop such criteria irrigation experiments on Soybean were conducted from flowering to grain filling at four locations which differed in their soil properties and the convective contribution of their climates to potential evapotranspiration. The energy balance, predawn leaf water potential (PLWP), soil moisture depletion, and a crop water stress index (CWSI) based on foliage temperature were measured. The range of soil, atmospheric, phenological and irrigation conditions, produced a common, linear relation between relative evapotranspiration (rET) and the logarithm of-PLWP. Correlation with the temperature based CWSI was weak. A similar relation with PLWP for other C 3 plants was also derived from data in the literature. This relation could be helpful for irrigation scheduling once the critical values of rET for crop productivity are known.Irrigation scheduling requires information on both the amount of water to apply and the timing of irrigation. This can be obtained using criteria of soil water availability or plant physiological status. The latter has been characterized by measuring plant water potential, stomatal resistance and indices based on the surface temperature of crops (Bordovsky et al. 1974;Stegman et al. 1976;Jackson et al. 1981;Dwyer and Stewart 1984;Katerji et al. 1987). Jackson et al. (1981) established a theoretical relationship between relative evapotranspiration and a parameter based on foliage temperature Crop Water Stress Index (CWSI). More recently, Itier et al. (1990), on the basis of their own measurements and data published in the literature, found a unique relationship between preCorrespondence to: B. Itier dawn leaf water potential (PWLP) and relative evapotranspiration (rET), i.e. the ratio of actual to maximum evapotranspiration. This relationship, which is contrary to Van Bavel's (1967) conclusions on the lack of any universal relationship between relative evapotranspiration and soil water potential, was obtained by using experimental results measured with four crop plants: tomato (L ycopersicon esculentum Mill); wheat ( Triticum aestivum L.); alfalfa (Medicago sativa L.) and cotton (Gossypium sp.) grown under different climates and with very different soil characteristics. This paper reports experiments conducted on soybean (Glycine max L. Merril), another commonly irrigated C3 plant. The aim was to test if the relationship between relative evapotranspiration and PWLP observed on soybean is the same under various conditions, and is similar to the relations previously established with other C3 plants. If of general applicability, this relationship could be helpful for application in irrigation practice. Materials and methodsExperiments were conducted on soybean (Glycine max L. Merril) at four locations. The main experiment was conducted at Mas d'Asport (40~ 4~ ne...

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Section: Discussionmentioning

confidence: 99%

Relations between relative evapotranspiration and predawn leaf water potential in soybean grown in several locations

Flura

Belabbes

Kosuth³

et al. 1992

Irrig Sci

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“…The development of an extensive root system is without doubt another means of overcoming inadequate rainfall (e.g. Satoo 1956; see also Palmer, Trickett, and Linacre 1964), but again, not all drought-resistant species possess this characteristic. The roots of perennial veldt grass are generally very fine.…”

Section: Discussionmentioning

confidence: 99%

Retention of Water by Plant Cell Walls and Implications for Drought Resistance

Teoh¹,

Aylmore²,

Quirk³

1967

Aust. Jnl. Of Bio. Sci.

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“…Under limiting conditions, transpiration decreases as the soil water content decreases and actual transpiration and crop growth rates are lower than their potential rates. This stage is referred to as the falling‐rate phase (e.g., Palmer et al, 1964; Feddes and Raats, 2004; Kozak et al, 2005).…”

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confidence: 99%

Macroscopic Root Water Uptake Distribution Using a Matric Flux Potential Approach

Lier

Dam

Metselaar

et al. 2008

Vadose Zone Journal

145

157

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Hydrological models featuring root water uptake usually do not include compensation mechanisms such that reductions in uptake from dry layers are compensated by an increase in uptake from wetter layers. We developed a physically based root water uptake model with an implicit compensation mechanism. Based on an expression for the matric flux potential (M) as a function of the distance to the root, and assuming a depth‐independent value of M at the root surface, uptake per layer is shown to be a function of layer bulk M, root surface M, and a weighting factor that depends on root length density and root radius. Actual transpiration can be calculated from the sum of layer uptake rates. The proposed reduction function (PRF) was built into the SWAP model, and predictions were compared to those made with the Feddes reduction function (FRF). Simulation results were tested against data from Canada (continuous spring wheat [(Triticum aestivum L.]) and Germany (spring wheat, winter barley [Hordeum vulgare L.], sugarbeet [Beta vulgaris L.], winter wheat rotation). For the Canadian data, the root mean square error of prediction (RMSEP) for water content in the upper soil layers was very similar for FRF and PRF; for the deeper layers, RMSEP was smaller for PRF. For the German data, RMSEP was lower for PRF in the upper layers and was similar for both models in the deeper layers. In conclusion, but dependent on the properties of the data sets available for testing, the incorporation of the new reduction function into SWAP was successful, providing new capabilities for simulating compensated root water uptake without increasing the number of input parameters or degrading model performance.

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Transpiration response of Atriplex nummularia Lindl. and upland cotton vegetation to soil-moisture stress

Cited by 15 publications

References 14 publications

Relations between relative evapotranspiration and predawn leaf water potential in soybean grown in several locations

Relations between relative evapotranspiration and predawn leaf water potential in soybean grown in several locations

Retention of Water by Plant Cell Walls and Implications for Drought Resistance

Macroscopic Root Water Uptake Distribution Using a Matric Flux Potential Approach

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