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 13 of 13 for “"girdling"”.
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Effects of apple branch girdling on retention and quality of fruit and vegetative growth
… were girdled. A factorial arrangement of girdling treatments (control, 9-mm girdle + uncovered, 9-mm girdle + electric tape, 9-mm girdle + TreeKote), and timings (0, 15, 30, 60, 90 days after full bloom (DAFB)) was used. With ‘Golden Delicious’/M.7, branch treatments were control, scored, …
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Plant Growth Regulator Sprays and Girdling: Potential Horticultural Techniques to Increase Fruit Retention and Yield of Longan (Dimocarpus longan Lour.) Trees in California
Abstract Plant Growth Regulator Sprays and Girdling: Potential Horticultural Techniques to Increase Fruit Retention and Yield of Longan (Dimocarpus longan Lour.) Trees in California Leila Graves June 2009 The longan is a subtropical fruit tree whose popularity is growing quickly among American …
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Establishment, Mortality and Growth of Recruits in an Experimentally Disturbed Piñon-Juniper Woodland
… we imposed an experimental disturbance regime by girdling all mature juniper or piñon trees at a plot scale with replication (N=3). Together with three undisturbed control plots, I monitored over three years sapling survival and growth, newly emerged seedling numbers, and their development and …
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Previsual detection of stressed coniferous trees
… Foliage of seedlings grown under stress due to: girdling; sevpring; defoliating; and drought, were studied by paper chromntographv, cross sectioning, and photography. The four pigments found appeared to decline proportionately as the foliage went from green to red. An error in technique resulted …
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The Southern pine beetle, Dendroctonus frontalis Zimm., and associated Coleoptera attracted to dead loblolly pine, Pinus taeda L.
… taeda</u> L., were stressed by severing and girdling. The bark beetle population trapped at stressed trees was then compared to the bark beetles trapped at unstressed control trees. The experiments were conducted in an apparently normal, old-field mixed pine-hardwood forest located in …
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Spatio-temporal patterns of soil resources following disturbance in a 40-year-old slash pine (pinus elliottii Engelm.) forest in the Coastal Plain of South Carolina
… types of disturbance: whole-tree harvesting and girdling, and 3) to evaluate some of the current methods for quantifying ecological heterogeneity. In response to both disturbance treatments, spatial heterogeneity measured by sample variance showed a marked "increase and then decline" temporal …
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The infection process of Colletotrichum truncatum on lentil
… leaves and stems, resulting in defoliation, stem girdling, plant wilting, and possibly plant death. Two races, Ct0 and Ct1, have been identified in the pathogen population in Canada. However, the differences in the infection process between the two races have not been described in detail. …
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Canopy light environment influences apple leaf physiology and fruit quality
… to determine: the influence of canopy position, girdling, and defoliation on nectar production; whether instantaneous light measurements yield reliable estimates of cumulative seasonal light levels within the canopy; and the effect of the canopy light environment on spur leaf physiology and fruit …
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Simulated Emerald Ash Borer Induced Changes in Western New York Forests
… increased soil CO2 efflux (one year after girdling) and decomposition rates that were observed in the girdled plots. Additionally, there is a loss of ash productivity in the girdled plots and this loss is not being fully compensated by other species. Based on the results of this study, EAB …
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A fenolos érettség vizsgálata Syrah szőlőfajtán = Examination phenolic maturity of Syrah grape variety
… reduce these negative effects. Cluster thinning, girdling and early defoliation are reported to have a beneficial effect on phenolic maturity especially on anthocyanin and flavonoid synthesis. Beyond these techniques a new foliar spray (LalVigne Mature) for enhancing phenolic maturity was …
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Comparative study of the ultrastructure and metabolism of the fat body of diapausing and nondiapausing larvae of the southwestern corn borer, Diatraea grandiosella Dyar (lepidoptera : pyralidae)
… of the species is primarily related to the girdling activity of the prediapausing larva. The mature larva of the overwintering generation prepares a cell in the root crown of the host plant, usually corn or sorghum, which serves as a protective shelter during diapause. Before settling into …
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Effect of several insects on the chemical composition of alfalfa, red clover, and birdsfoot trefoil
… caused characteristic stripping of leaves, girdling of stem and drying of the entire plant. Feeding of 10 or more weevils for 18 days on a two month growth of alfalfa after the 1st cutting, cause a consistent reduction of proteins, fat and crude fiber and an increase of dry matter, ash, and …
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Relationship of the apple aphis and other insects to the dissemination of fire blight in apple orchards, with a view to methods of blight control
… vary in size from barely visible areas to a girdling of the entire limb; they appear roughened and depressed with a distinct line separating the canker from the apparently healthy tissue. They are called "hold-over cankers." 5. Collar blight is nothing more than canker blight which attacks …