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A study of the factors influencing the darkening of orange juiceMatthew, Alexander. January 1927 (has links)
Thesis (M.S. in Agricultural Technology)--University of California, Berkeley, May 1927. / "References": leaves 33-34.
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Physical and chemical factors affecting storage life of Valencia orangesKhalifah, Rashad Abdel Halim, 1935- January 1961 (has links)
No description available.
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PRODUCTION OF WASHINGTON NAVEL ORANGE IN A DESERT CLIMATE.ABDUL-HUSSAIN, SOHAIL ALIWE. January 1984 (has links)
Yields of Washington Navel orange [Citrus sinensis (L.) Osbeck] under Arizona desert conditions are low, due mostly to a low number of harvested fruit and secondly to small sized fruits. To determine at which development stage yield reduction occurred, flowering branches were tagged at mid-bloom and the leaves and flowers were counted. The percent flowers shed at certain times was then recorded. In addition, 27 years yield data for the Arizona-California and Central California production regions were examined in relation to temperature and relative humidity to identify factors causing low yields in the desert climate. It was found that a low number of fruit was due to a low percentage fruit set, while fruit shedding during June drop contributed somewhat less to reducing the number of harvested fruits. A lower percentage of fruits were lost from Arizona Navel orange trees during and after June drop than reported for trees in Florida and California. This resulted in a higher percentage of initial flowers becoming mature fruit, even though there were fewer harvested fruits per tree in Arizona. It was concluded that Navel orange trees growing in Arizona have relatively fewer flowering branches. A correlation between yields and temperatures for 27 years showed that mean and maximum temperatures during the period from June prior to flowering through June after flowering had a highly significant, adverse effect on yields of Arizona grown trees, but not on yields of California grown trees. Relative humidity had no observable effect on yield. In addition, low yields of Navel orange trees in Arizona was disassociated with soil salinity. Low leaf to flower ratios (L/F) had a significant effect on fruit set only if L/F was 1.0 or less. However, the effects of L/F were insignificant to the number of harvested fruits. Foliar applications of potassium nitrate (KNO₃) for two successive years significantly increased yield. Gibberellic acid (GA₃) did not increase fruit set and harvested yields. Benzyladenine (BA) combined with overhead sprinklers failed to reduce the number of fruit shed during June drop. Transpiration and photosynthesis rates for both Navel and Valencia orange trees were low under Arizona conditions.
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Impacts of a prorate suspension on marketing margins for California-Arizona navel orangesLyon, Charles Christopher, 1958- January 1988 (has links)
In January, 1985, the rate-of-flow controls ("prorate") for the California-Arizona navel orange industry were suspended for half of the marketing season. This marked the first time in 32 consecutive years that the industry operated without market controls. This study compares the behavior of industry marketing margins during the deregulated period with that of regulated seasons in order to assess the impacts of the prorate suspension on the marketing system. Econometric results indicate that relative to subsequent regulated seasons, marketing margins contracted during the prorate suspension period. This implies that despite deregulation, the agricultural marketing sector was unable to exercise market power and maintain retail orange prices high while depressing grower prices, as some growers claimed. In addition, the results suggest that shortrun distributor reaction to a permanent termination of marketing order controls would result in changes in marketing system behavior which would be favorable to consumers.
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Chlorophyllase involvement in color development of valencia oranges: (Citrus sinensis L. Osbeck)Aljuburi, Hameed January 1979 (has links)
No description available.
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Historical import of the orange industry in southern CaliforniaBoyd, Jessie Edna, January 1922 (has links)
Thesis (M.A. in History)--University of California, Berkeley, Dec. 1922. / Includes bibliographical references (leaves 117-126).
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Suiwering en biochemiese karakterisering van chalkoonisomerase van Citrus sinensisFouche, Sheldon David 23 April 2014 (has links)
M.Sc. / Please refer to full text to view abstract
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Effect of soil amendments, climate and rootstock on tree performance and fruit quality of 'Valencia' orange used for processingFreeman, Tanith 09 November 2005 (has links)
Please read the abstract in the section 00front of this document / Dissertation (MSc (Agric) Horticultural Science)--University of Pretoria, 2005. / Plant Production and Soil Science / unrestricted
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Outlook for the Arizona orange industryWhite, Richard Walter, 1938- January 1972 (has links)
No description available.
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Economic impacts of frozen concentrated orange juice futures trading on the Florida orange industryDasse, Frank Arthur, January 1975 (has links)
Thesis--University of Florida. / Description based on print version record. Typescript. Vita. Includes bibliographical references (leaves 162-164).
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