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 12 of 12 for “"apple production"”.
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Evaluation of rootstock and crop load effects on the performance of `Gibson Golden Delicious' and three scab-resistant apple cultivars
… the 20th century, Iowa ranked sixth in national apple production. Iowa currently provides about 15 percent of the 1.3 million bushels of fresh apples eaten by Iowans annually (Pirog, 1999) and is ranked at 28th in the nation in production. The reduction in rank was mostly due to the Armistice Day …
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A Conjoint Analysis of Consumer Preferences for Product Attributes: The Case of Illinois Apples
… the proposal entitled: Initiative for Low-input Apple Production in Illinois. Major difficulties currently facing apple production in Illinois are competition from lower cost producers in more favorable climates and the use of traditional production technologies which require intensive use of …
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Trade and Welfare Effects of Japan's Revised Import Protocol for American Apples
Japan's phytosanitary restrictions on apple imports were the subject of a long trade dispute with the American apple industry, which contended that mature, symptomless apples cannot transmit fire blight. This study addresses U.S.-Japanese trade issues in two parts. By providing the first estimate …
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Applications of Machine Learning in Apple Crop Yield Prediction
… learning techniques to predict yield in the apple industry. Crop yield prediction is important because it impacts resource and capacity planning. It is, however, challenging because yield is affected by multiple interrelated factors such as climate conditions and orchard management practices. …
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Status of streptomycin-resistant Erwinia amylovora in Illinois apple orchards and evaluation of alternative compounds to manage fire blight disease
Illinois apple growers produce approximately 17,963 metric tons of apples annually. Fire blight disease, caused by the bacterium Erwinia amylovora, is a serious threat to apple production in Illinois and other Midwestern states. Streptomycin has been the most effective chemical for control of fire …
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Estimating environmental and human health benefits of reducing pesticide use through integrated pest management programs
… costs of pesticide use associated with the production of any crop. The cost estimates for production under "conventional" (i.e. non-IPM) pest management are compared to the cost estimates associated with production under an IPM program to generate estimates of the environmental and human …
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Developing Novel Management Options for Pear Fire Blight and Apple Bitter Rot with Characterization of Apple European Canker in Virginia
… of various diseases affecting pome fruits like apples and pears is crucial for sustaining production. This study amalgamates findings from three distinct disease investigations to propose an integrated approach to their management. Firstly, in pursuit of mitigating shoot blight severity caused …
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Pesticide regulatory actions and the development of pest resistance: a dynamic bioeconomic model
… model was parameterized to represent the U.S. apple production system. Information generated through optimization of the dynamic bioeconomic model suggested that resistance becomes quantitatively important when planning horizons exceed 10 years, confirming that the economic performance of the …
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Some factors affecting fresh apples purchases in retail stores
… decades the trend in per capita consumption of apples has been downward. This downward trend is evident when the per capita rates of apple consumption are compared for various time periods during these years. In fact, the trend in per capita consumption of apples has been steadily downward from …
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Economic feasibility of using weather-altering technology on apple orchards in Virginia
Apple producers in Virginia are affected by adverse weather factors which cause poor or lower than normal yields. These weather factors such as freeze kill of bloom and lack of rainfall cause decreases in production and, therefore, decreases in revenues received by apple producers. These weather …
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Inhibition of Flower Bud Initiation and Development in Apple by Defoliation, Gibberellic Acid and Crop Load Manipulation
… been investigated longer and more extensively in apple than in any other fruit tree; however, it remains a serious problem in commercial apple production all over the world. Trees that have become biennial flower profusely and carry a heavy crop in the "on" year, and flower sparsely or not at all …
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Work relations and forms of production in New Zealand agriculture
… the industrialisation of agriculture and the reproduction and subsumption of family farms. In making this contribution, a framework is developed for the examination of work relations and forms of production in apple orcharding and dairy farming in New Zealand. It is argued that many of the …