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Lisa Tang, Shweta Chhajed, and Tripti Vashisth

). A report released by the U.S. Department of Agriculture ( USDA, 2018 ) indicated a dramatic increase in the estimated preharvest drop rate for ‘Valencia’ sweet orange from 14% during the 2009–10 production season to 30% during the 2016–17 season

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Biwek Gairhe, Peter Dittmar, Davie Kadyampakeni, Ozgur Batuman, Fernando Alferez, and Ramdas Kanissery

(Cornish and Burgin, 2005; Tong et al., 2017). Hence, the main objective of the current study is to evaluate the potential of glyphosate in promoting preharvest fruit drop when applied in ‘Valencia’ sweet orange tree rows near the harvesting timeline. The

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Frederick S. Davies and Glenn Zalman

, GA 3 , rootstock, and fruit freezing. The primary objective of this study was to determine whether GA 3 and rootstock affect prefreeze juice content, and freezing pattern and internal quality of ‘Rohde Red’ valencia orange fruit over time after a

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Charles A. Powell, Mark A. Ritenour, and Robert C. Bullock

Hamlin orange trees ( Bullock and Pelosi, 1992 ). In this study, we investigated the effect of several insecticide treatments, including Temik, Admire, and Meta-Systox-R, on growth and yield of newly planted, young ‘Valencia’ sweet orange trees. Materials

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Luis Pozo and Jacqueline K. Burns

tree health and yield. The sweet orange cultivar Valencia [ Citrus sinensis (L.) Osbeck] is a high-quality citrus juice orange in Florida that usually commands a premium price. ‘Valencia’ is considered a 13- to 16-month crop in Florida, meaning that

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Vicente Gimeno, James P. Syvertsen, Inma Simon, Vicente Martinez, Jose M. Camara-Zapata, Manuel Nieves, and Francisco Garcia-Sanchez

related to this higher salt tolerance were that the interstock limited the uptake and transport of Cl – to the shoots by decreasing both the shoot-to-root ratio and leaf transpiration. ‘Verna’ lemon trees on SO rootstock interstocked with ‘Valencia

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Adriana Contreras-Oliva, Cristina Rojas-Argudo, and María B. Pérez-Gago

% CO 2 at 25 °C for 20 h ( Palou et al., 2008a ) achieved complete insect mortality on ‘Fortune’ mandarins, ‘Valencia’ oranges, and ‘Clemenules’ mandarins, respectively, without affecting negatively fruit external appearance or sensory properties

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Ed Stover, David G. Hall, Jude Grosser, Barrett Gruber, and Gloria A. Moore

liners, seeds were sourced from field trees, and no seedling showed any evidence of HLB before inoculation. Trees were maintained with no insecticide applications in an ACP/HLB-free greenhouse. In Feb. 2013, all trees were budded with clean ‘Valencia

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Kelly T. Morgan, Robert E. Rouse, and Robert C. Ebel

infected with HLB. Materials and Methods Site description. This study was initiated on 6-year-old ‘Valencia’ ( Citrus sinensis Osb.) on Swingle rootstock ( Citrus paradisi Macf. × Poncirus trifoliata Raf.) trees in a commercial grove near Immokalee, FL

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R. B. Beverly, J. C. Stark, J. C. Ojala, and T. W. Embleton

Abstract

Reference values were derived from field data for use in evaluating the N, P, K, Ca, and Mg status of ‘Valencia’ orange (Citrus sinensis [L.] Osbeck) trees by the Diagnosis and Recommendation Integrated System (DRIS). DRIS diagnoses generally agreed with diagnoses made by the sufficiency range method, with the advantage that DRIS reflects nutrient balance, and identifies the order in which nutrients are likely to become limiting. DRIS diagnoses were affected by the type and age of the tissue sampled. DRIS reflected changes in nutrient concentrations due to alternate bearing or crop load effects and agreed with the sufficiency range method when concentration changes were sufficient to affect the latter method.