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Showing 1 to 20 of 135 for “"water potential"”.
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Effects of soil pH and soil water potential on arbuscular-mycorrhizal fungal colonization of soybean
… or Ca (OH)2. Three different soil moisture potentials, -7.5, -33.3, and -100 kPa, were used in this experiment. There was a significant (P<0.001) interaction of soil moisture potential and pH on AM fungal root colonization and plant growth. Soil types also significantly (P<0.001) influenced …
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Water-Potential Gradients and Resistances in a Soil-Plant System as Affected by Soil-Water Potentials
Made available in DSpace on 2014-12-12T00:18:01Z (GMT). No. of bitstreams: 1 7414599.pdf: 3557734 bytes, checksum: 9ee0edbfc528f4e27e52fbcc01b8f683 (MD5) Previous issue date: 1974
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Verticillium Dahliae Klebsiella Growth as It Relates to the Nitrogen, Sugars, and Water Potential of Tree Sap
In vitro studies were conducted to determine the effects ammonium, amino acids, sugars and physical tension would have on the dry weight and conidial production of Verticillium dahliae Kleb.
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“Acid-spike” effect in spurs/tracks of the low/high linear energy transfer radiolysis of water : potential implications for radiobiology and nuclear industry
… transfer (LET) radiolysis of pure, deaerated water at early times. The in situ radiolytic formation of H3O+ renders the spur and track regions temporarily more acid than the surrounding medium. Although experimental evidence for an acidic spur has already been reported, there is only …
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The Effect of Leaf Pubescence on Leaf Water Potential, Apparent Photosynthetic Rate and Yield of Three Isogenic Lines of Soybeans (Glycine Max (L.) Merrill)
Made available in DSpace on 2014-12-12T00:17:40Z (GMT). No. of bitstreams: 1 7105103.pdf: 4133228 bytes, checksum: 52cc2db19b42807b2be34163259363f7 (MD5) Previous issue date: 1970
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Gross N turnover and soil solution chemistry as influenced by fluctuations of soil water potential and water table in a Podzol and a fen soil
… drought stress in forest soils or a drawdown of water table in wetland ecosystems, which may influence the turnover of nutrients in soils to a larger extend than previously thought. The question arises how these climate changes will influence N and C turnover in forest and fen soils. A growing …
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Water Status, High Temperature, and Genotype Effects on Some Processes Which Influence Maize Seed Set (Zea Mays L., Low Water Potential, Pollen Viability, in Vivo Assay, Stress)
… viability, and pollen production to heat and water stress. These processes are involved in determining kernel number.
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Transpiration and the water relations of barley
Measurements of evapotranspiration, leaf water potential and stomatal conductance were made with a barley crop over the spring and summer of 1979. From these measurements a model of transpiration from barley was developed. Predictions of the model were compared with Bowen ratio measurements of …
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A Hydrothermal After-ripening Time Model of Seed Dormancy Loss in Bromus tectorum
… is associated with a decrease in the mean base water potential, one of the parameters of hydrothermal time. The rate of change of the mean base water potential is assumed to be a linear function of temperature above a specific base temperature and as a result can be described by a thermal …
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Sustainable Approaches to Enhance Water Productivity in Cucumis melo
… and an improved understanding of plant-water relations offer potential solutions to enhance crop water productivity (CWP). This study conducted at the University of Nevada, Reno, evaluates three sustainable approaches to increase CWP in melons (Cucumis melo L.) under high desert …
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Regulation of Seat-patch Water Potentials in Anurans
Decades of research on water exchange in frogs have assumed that blood osmotic potential drives water uptake. However, more recent reports have suggested an intermediate control of the water potential partially separate from the osmotic potential of blood. Some reports have speculated that …
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Water use of Pinus radiata D. Don on bare ground at the Lincoln agroforestry experiment, Canterbury, New Zealand
… evaluated the rainfall distribution and the soil water storage at different positions of Clone 3 and Seedling trees of Pinus radiata genotypes grown in bare ground during early summer (September 14 to 30 November) 1994. The predawn and mid-day plant water potential of two genotypes was also …
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High throughput profiling of transcription factors involved in soybean root growth under water deficit
… that the soybean primary root adapts to low water potential (-1.6 MPa) by maintaining longitudinal expansion in the apical 4 mm (region 1), whereas in the adjacent 4 mm (region 2), longitudinal expansion reaches a maximum in well-watered roots but is progressively inhibited at low water …
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Moisture occurrence in roof assemblies containing moisture storing insulation and its impact on the durability of building envelope
… these results for validation, a model using the water potential concept as the driving force for moisture movement was developed to simulate the complete wetting and drying of wood components within the envelope. Within an Environmental Chamber, which allows for testing full scale specimens, a …
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The effects of cloud moisture on Restions, Ericas and Proteas in the Cape Floristic region
… that the direct wetting of foliage provides a water subsidy to plants of various ecosystem types. In this study, we investigate the presence of foliar uptake, and the effects of misting on the plant water potential of species representing diverse functional types, namely ericoids, proteoids and …
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Physiological response of loblolly pine seedlings to moisture-stress conditioning and their subsequent performance during water stress
… of loblolly pine (Pinus taeda I.) during water stress were investigated. Seedlings were subjected to prolonged sublethal drought treatments which included a watered control, a moderate stress treatment (MWS, seedlings watered only when needle water potential reached -0.8 MPa) and a severe …
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Plant traits and drought tolerance in the savanna : a Kruger National Park case study
… leaf thickness, leaf life span/longevity and water potential were measured along a rainfall gradient (from south to north of the park). Wood density and water potential did not show any significant differences between the wet and dry sites. Leaf thickness and percent leaf cover showed …
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Physiological response of two turfgrass species to increasing drought and salinity stress using a line source gradient
… any diminished turfgrass quality, if total water potentials {dollar}\rm(\Psi\sb{T}){dollar} were maintained above species specific thresholds, where {dollar}\rm\Psi\sb{T}{dollar} is defined as the sum of the matric {dollar}\rm(\Psi\sb{M}){dollar} and osmotic {dollar}\rm(\Psi\sb{\Pi}){dollar} …
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