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.
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Showing 1 to 20 of 117 for “"Chlorophyll content"”.
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Light Effect on Seed Chlorophyll Content and Germination Performance of Tomato and Muskmelon Seeds
… Seeds may be non-destructively sorted using chlorophyll fluorescence (CF) as a marker of seed maturity. This study was conducted to test whether CF could be used to remove low vigor immature seeds from muskmelon (Cucumis melo L.'Top Mark') and tomato (Lycopersicum esculentum) seed lots. Light …
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Analyzing variation in plant canopy conversion efficiency and assessing canopy and leaf photosynthetic efficiency in soybean with reduced chlorophyll content
… this research tested the hypothesis that reduced chlorophyll content would increase εc at both the canopy and leaf level using field and microscopy techniques. In chapter one, a meta-analysis was used to statistically quantify the effects of greenhouse gases, weather-related stresses projected to …
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The influence of succinic acid 2,2 dimethylhydrazide (Alar) on net CO₂ assimilation rate, chlorophyll content, anatomy, and morphology of vegetative growth of the apple, Malus sylvestris Mill
A 2 year study was conducted to investigate the influence of Atar on young apple trees. In 1996 concentrations of 0, 500, 1000, 2000, 4000, and 8000 ppm of Alar were applied to 'Golden Delicious', 'York Imperial' and 'Delicious' cultivars growing outside in gallon containers.
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Soil and plant factors associated with iron chlorosis of Kentucky bluegrass
… pH, soil available iron, plant total iron, plant chlorophyll content, and plant iron uptake efficiency were determined. Also, the visual appearance of the turf was scored before sampling. Statistical treatment indicated significant differences in the total iron and chlorophyll content of the …
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Validation and application of the MERIS Terrestrial Chlorophyll Index.
… operational product called the MERlS Terrestrial Chlorophyll Index (MTCI). The MTCI is related to the position of the red edge in vegetation spectra and can be used to estimate the chlorophyll content of vegetation. The MTCI therefore provides a powerful product to monitor phenology, stress and …
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Variation in the physiological processes of eastern white pine (Pinus strobus L.) differing in sensitivity to ozone, sulfur dioxide, and nitrogen dioxide
… pine gas exchange rates, needle dry weight, and chlorophyll content with respect to clonal sensitivity. Sensitive clone exhibited the greatest reduction in net photosynthesis due to ozone and sulfur dioxide exposures followed by intermediate and tolerant clones. Early stimulation of dark …
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Effects of disbudding, defoliating, tipping, and pruning on young, potted apple trees
… decline in net photosynthesis (Pn) and total chlorophyll content exhibited by the check. The delay in the decline of Pn and total chlorophyll content was maintained for the longest period in the UT-DB-DF, T-DB-DF, and P-DB treatments. Maintenance of Pn and chlorophyll levels following pruning …
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Genetic Analysis of Nitrogen Remobilization and Kernel Compositon in Zea Mays L. and Sorghum Bicolor (L.) Moench
… was conducted in 2012 and 2013 to examine leaf chlorophyll content at different growth stages and kernel composition at maturity. Chlorophyll content meters were utilized for measurements of leaf chlorophyll content on two different leaves at VT, R2, and R4 sampling times. Near infrared …
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The oxidation stability of extra virgin avocado oil : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Food Science at Massey University
… (PV) (initially 0.96 ± 0.03 meq/kg oil) and chlorophyll content (initially 16.2 ± 0.1 ppm) of EVAO. The production and packaging processes of Olivado NZ. were analysed for exposure to oxidation promoting factors. EVAO was exposed to dark storage at 50°C and 60°C in order to determine Q10 …
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Thylakoid membrane from spinach - effect of processing on their function as appetite suppressing ingredient
… in vitro. Heat treatment also affected chlorophyll content and the thylakoids’ ability to stabilize the oil-water interface in oil-in-water emulsions. Drum drying, spray drying and freeze drying were investigated. Drying at higher temperatures decreased the emulsifying capacity of the …
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Quantitative Trait Loci Associated with Waterlogging Tolerance in a Soft Red Winter Wheat Mapping Population
… shoot biomass, dry root biomass, root length, chlorophyll content, tiller number, elongation, and plant height pre and post-treatment under stressed and non-stressed conditions.</p> <p>In both the greenhouse and the field experiments, biomass traits, chlorophyll content ere significantly …
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Net photosynthesis and photosynthate partitioning/of day-neutral and Junebearing strawberry plants as influenced by fruiting
… area basis), specific leaf weight (SLW), and chlorophyll content were determined at 7-day intervals for an early-formed leaf (old leaf) and for the most recently expanded leaf (young leaf) of fruiting and deblossomed day-neutral plants (cv. Tribute). During the fifth week of the fruiting …
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Influence of Plant Growth Regulators on Turfgrass Growth, Antioxidant Status, and Drought Tolerance
… plus SE at 326 g/ha also increased beta-carotene content and SOD activity under low and high soil moisture environments. There were close positive correlations between the antioxidant status and shoot or root growth in the three turfgrass species regardless of soil moisture levels. The antioxidant …
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Assessment of the spatial variability of vegetative status in vineyards using non-destructive sensors: Application of remote and proximal sensing technologies in precision viticulture
… used either manually and on-the-go, to determine chlorophyll, flavonol and nitrogen content in grapevine leaves. Materials and methods: A multispectral sensor mounted on a RPAS was employed for monitoring the spatial variability of the vegetative status of a commercial vineyard (Vitis vinifera L.) …
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Comparing the effects of two types of Mulches on soil properties and the performance of selected woody species on a degraded land in Kunene region, Namibia
… and straw) on the soil's temperature, moisture content, and pH as well as the cumulative stem length, seedling survival, and leaf chlorophyll content of the selected species (Faidherbia albida, Catophractes alexandri, Vachellia erioloba, and Senegalia galpinii) during three watering periods …
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The effect of spirea aphid (Homoptera: aphididae) feeding and nitrogen fertilization on the growth of young apple trees, with comparisons to apple aphid
… fertilization on net photosynthesis (Pn), leaf chlorophyll content and greenneess, growth, dry matter accumulation, and carbohydrate concentrations of young apple trees, with comparisons to apple aphid, Aphis pomi DeGeer. Trees were artificially infested and grown in an unheated greenhouse with …
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Vegetative and reproductive biomass allocation responses of herbaceous plant species to induced drought in a semi–arid highland savanna, central, Namibia
… with a mercury thermometer), soil moisture content and chlorophyll content (using a SPAD-502 Plus Chlorophyll meter) were recorded before biomass harvesting. Biomass was collected from 0.5 m x 0.5 m quadrants, with aboveground biomass clipped at ground level and belowground biomass obtained …
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The effect of various selected shade nets on field-grown bush tea’s physicochemical and antioxidant properties (Athrixia phylicoides DC.)
… were analysed. In addition, parameters such as chlorophyll content a, chlorophyll content b, total chlorophyll content (TCC), total flavonoid content (TFC), total phenolic content (TPC), as well as antioxidant activities following ABTS and FRAP methods were analysed using a spectrophotometer. …
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