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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 41 for “"apple trees"”.
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Nitrate reductase in apple trees
… assay conditions for various tissues of MM 106 apple trees. Optimum concentrations of nitrate and phosphate for in vivo nitrate reductase activities ranged from 50 to 100 mM and were tissue-specific. The optimum pH of the assay medium was 7.5. Vacuum infiltration and the addition of 2% (v/v) …
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Effects of Cover Crop Treatments on Apple Trees
… using cover crops as part of a sustainable apple orchard management system. A field study used treatments of 1) seasonal legumes (cowpea [Vigna unguiculata] and crimson clover [Trifolium incarnatum]), 2) seasonal grasses (millet [Setaria italic] and annual rye [Lolium multiflorum]), or 3) …
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Storage Proteins in Apple Trees (Woody Plant, Nitrogen, Senescence)
… subsequent degradation of storage proteins in apple trees. Protein isolation, characterization, and proteolytic enzyme study were involved.
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A study of trunk injuries and diseases of apple trees
… to the prevalence of canker diseases in Missouri apple orchards, and the untold damage which they are causing, the growers are asking for information that will enable them to combat these diseases successfully. It was with the idea of obtaining additional information concerning these diseases, …
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Translocation of Nitrogenous Compounds in One Year Old Apple Trees
Made available in DSpace on 2014-12-10T17:53:05Z (GMT). No. of bitstreams: 1 6500875.pdf: 3024790 bytes, checksum: ca2f324a4a66dcfffacc6cbf5da8ffd9 (MD5) Previous issue date: 1964
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Accumulation and Redistribution of Potassium and Calcium in Young Apple Trees
Made available in DSpace on 2014-12-04T19:49:27Z (GMT). No. of bitstreams: 1 6202915.pdf: 9782699 bytes, checksum: e9a3241914680e18ce8207c656951586 (MD5) Previous issue date: 1962
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Effects of disbudding, defoliating, tipping, and pruning on young, potted apple trees
… stool-bed layers of Malling Merton (MM) 111 apple trees were container-grown in a greenhouse and trained to a single shoot. When shoot length averaged 73 cm, the following treatments were applied: a) check, untreated (CK); b) tipped (shoot apex removed) and top 1/2 of shoot disbudded (T-DB); …
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Changes in the Total Nitrogen Content of Certain Tissues of Young Apple Trees During Senescence and Dormancy
Made available in DSpace on 2014-12-12T00:57:20Z (GMT). No. of bitstreams: 1 7212144.pdf: 2486002 bytes, checksum: 84001a841b0e691986fc9ce98c7215c6 (MD5) Previous issue date: 1971
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Spiders associated with apple trees in Virginia with notes on their importance in controlling orchard insect pests
… studied in an abandoned and several commercial apple orchards in Virginia. There were 68 and 45 species found in the abandoned and combined commercial orchards respectively. Species numbers in individual commercial orchards ranged from 18-28. There were 16 species common to all sprayed orchards. …
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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
… 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 screened ends. The spirea aphid responded differently to various nitrogen treatments. Aphid density increased …
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The Relationship of Protein, Amino Acid, Nitrogen and Peroxidase to The Fire Blight Disease of Jonathan Apple Trees as Affected by Gradients of Copper
Made available in DSpace on 2014-12-05T20:30:13Z (GMT). No. of bitstreams: 1 6104267.pdf: 4655578 bytes, checksum: bf233caad29401bdfd25e13380fed966 (MD5) Previous issue date: 1961
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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
… 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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Microbial Ecology and Horticultural Sustainability of Organically and Conventionally Managed Apples
… Organically and conventionally managed apple trees (Malus domestica Borkh) were evaluated for three growing seasons (2005-2007) to examine the impact of organic and conventional pesticide applications on the microbial ecology of phyllosphere and soil microflora. An important objective …
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Plant-insect interactions between female dogwood borer and apple
… shown by mated female dogwood borer in an apple orchard was characterized and quantified and the diel periodicity with which those behaviors occurred was determined. Mated females were easily recognized, based on their characteristic casting flight directed toward areas below the graft …
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Ecological and logistical considerations toward introducing Heringia calcarata to New Zealand
… Zealand (NZ) for biological control of woolly apple aphid (WAA), Eriosoma lanigerum (Hausmann) (Hemiptera: Aphididae). Ultimately, the introduction of H. calcarata to New Zealand will be contingent upon satisfying regulatory requirements and concerns, including documentation that it will not …
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Photosynthate production and partitioning in apple leaves
Mature field-grown apple trees were used to gain a better understanding of the influences of light and fruit on leaf physiology. Light effects on net photosynthesis (Pn), specific leaf weight (SLW), leaf N content (Weight/area) (Nw), and leaf N concentration (% dry weight) (Np) of spur leaves from …
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Yield estimation and smart harvesting for precision agriculture using deep learning
… than 90% accuracy on a real video footage of apple trees collected by a drone from an apple orchard and approximately 94% accuracy for pumpkin counting from an aerial drone footage.
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