Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 2255 for “""Plants transpiration research""”.
-
A transient heat probe sensor for measuring transpiration in the stem of woody plants.
… sap flow through the xylem in the stem of woody plants. This system utilizes a single heated thermistor probe which is alternately and automatically switched between a constant (heating phase) and a variable (cooling phase) temperature mode of operation. Experiments reported here have been …
-
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 …
-
Soybean transpiration, vegetative morphology, and yield components following simulated and actual insect defoliation
… from 1980 to 1983. The primary goals of this research were: (1) to assess the fidelity of simulation methods to actual insect defoliation for one basic physiological process, transpiration; (2) to determine if soybean response to defoliation varies between simulation methods; and (3) to …
-
Enhanced petroleum-contaminated soil bioremediation by plants
… bacteria to the irrigation water. The two plants were selected to represent extremely different species in terms of transpiration potential and root density in order to better understand the mechanisms involved in phytoremediation. Clay sandy soil (3: 1, by weight) was spiked with Fuel oil …
-
Novel water-use strategies of Colorado wetland plants: implications for wetland water loss
… alike, also contribute significantly to evapotranspiration (ET) due to higher water tables and dense vegetation. It is therefore critical to understand how much water wetlands lose to evaporation and transpiration, and what affects wetland water loss. This paper quantifies the transpiration of …
-
Native plants as sentinels of tritium contamination
… earthen caps covering radioactive waste. The plants, grown in hydroponic tanks and 3 m columns, were evaluated for treatments representing three different levels of tritium contamination. Tritium, a radioactive isotope of hydrogen, replaces a hydrogen atom in a water molecule and readily …
-
Transpiration Electrokinetic Power Generation and Zinc Ion Battery for Autonomous Leak Detection
… due to energy consumption in water treatment plants and declining freshwater sources. Additionally, water leaks can create extremely dangerous situations, having been the cause of data center fires, by undetected leaks traveling into battery rooms creating short circuits and extremely …
-
Acclimatization physiology in tissue cultured plants
… culture medium was studied in cultured banana plants. Plandets grown on agar solidified medium with increased levels of sodium, exhibited reduced growth and stomatal movement. The use of agar as a solidifying agent was shown to reduce root growth, development and stomatal functioning in these …
-
Environmental Variability and Phenotypic Flexibility in Plants (Illinois)
… soil moisture; light intensity; leaf area index; transpiration, growth, and reproduction of plants, shading conditions experienced by individual plants) were made in old fields, tallgrass prairies, and deciduous forest floors in Illinois. The fields had the most, and the forest the least, …
-
Functional role of plant water fluxes in nutrient acquisition
Transpiration is inevitable during photosynthesis; however, it may also function to cool leaves, transport nutrients and drive nutrient acquisition via mass-flow. In addition to transpiration, plants water fluxes occur through hydraulic redistribution (HR). I hypothesized that an important function …
-
Effect of soil nutrient status on stress tolerance in Proteaceae
… unstressed treatments, stomatal conductance and transpiration rates of plants grown on the low nutrient treatment was generally lower than that of plants grown on the medium and high nutrient treatments where stomatal conductance and transpiration rates were similar. Stressed plants grown on the …
-
The effect of wind run on transpiration and leaf temperature of Leucospermum concarpodendron on the Cape Peninsula
… affect whole plant physiology through changes in transpiration which can influence mass-flow mediated movement of nutrients in winter as well as leaf temperature. The objectives of this study were to establish whether (a) decreased wind run could reduce transpiration in winter when vapour pressure …
-
Increased expression of NADP malic enzyme in the guard cells of <i>Arabidopsis</i> plants
<p>Plants lose their water as transpiration by stomatal opening, which is governed by guard cells surrounding the stomata. Influx of ions such as K<sup>+</sup>, Cl-, from neighboring cells into guard cells, and malate synthesis within guard cells increases turgor pressure opening the stomata. …
-
Determining the influence of transpiration on soil moisture pathways using electrical resistivity imaging
… how soil moisture pathways are affected by daily transpiration using time-lapse electrical resistivity imaging (ERI) on a ponderosa pine and the surrounding soil during the growing season. By comparing sapflow measurements to the ERI data, we find that high periods of sapflow within the diel cycle …
-
Branch junction constriction and hydraulic limitation in two species in the Cape Proteaceae : a mechanism explaining the trade-off between longevity and degree of ramification in the Cape Proteaceae
… and increased much faster in more ramified plants. Loss of flow rate increased linearly with increased branching order and was unaffected by differences in ramification. This was because the nodes in more ramified plants had smaller basal sapwood areas, and the resistance imposed by nodes …
-
Estimating and Modeling Transpiration of a Mountain Meadow Encroached by Conifers Using Sap Flow Measurements
… change and land management practices. Past research has focused on conifer removal as a meadow restoration strategy, but there has been limited work on conifer transpiration in a pre-restoration state. Meadow restoration by conifer removal has the primary goal of recovering sufficient …
-
A Computer Vision Tool For Use in Horticultural Research
… an increased demand for more horticultural research. While research into plant genetics has seen an increased throughput from recent technological advancements, plant phenotypic research throughput has lagged behind. Improvements in open-source image processing software and image capture …
-
Sodium relations in pasture and fodder plants grown in New Zealand
… sodium from roots to shoots. In this respect plants can be classified into two distinct types according to the sites where sodium preferentially accumulates. Natrophilea: plants in which sodium readily accumulates in the leaf tissues. Natrophobes: plants in which sodium preferentially …
-
Interactions between neighbouring plants
… the issue of interactions between neighbouring plants by looking at theory and models used in the study of wild plants with a view to applying them in the design of agroforests. In Part I difficulties of designing mixed crop stands are considered. Grime's model of the ecological strategies …
-
Coordinated Tree Responses to Drought -Vulnerability and Sustainable Production: Hypotheses on Arid Ecosystem Adjustments to Limitations in Water Resources
… into two groups per species. The first set of plants were watered every other day (controls) while the second set were watered every seven days (water stress treatments). Field measurements included weather parameters, soil and plant water status, growth, sap flux density, leaf transpiration …
Page 1 of 113