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Mason T. MacDonald, Rajasekaran R. Lada, Alex I. Martynenko, Martine Dorais, Steeve Pepin and Yves Desjardins

infection were correlated with chlorophyll degradation followed promptly by accelerated abscission of needles ( Fuhrer, 1985 ). Previous work with balsam fir has implicated continuous ethylene exposure as a signal to induce abscission after root detachment

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Michael H. Hagemann, Malte G. Roemer, Julian Kofler, Martin Hegele and Jens N. Wünsche

described in detail by Roemer et al. (2011) . According to earlier findings, wind velocity is unlikely to provide sufficient force necessary for the detachment of healthy fruit and therefore may only force unhealthy fruit with loosely adhering junctions to

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Javier Fernandez-Salvador, Bernadine C. Strik and David R. Bryla

fertilization affects leaf nutrient content and growth of ‘Shawnee’ blackberry J. Plant Nutr. 16 297 303 Stiles, H.D. Tilson, W.M. 1998 Sepal color change relates to fruit quality, firmness, and detachment force in erect and semi-erect thornless blackberry

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Anna Marín, Anne Plotto, Lorena Atarés and Amparo Chiralt

section. After storage, each replicate was weighed and transferred to erlenmeyer flasks containing 100 mL sterile BPW, which were shaken at 150 rpm for 20 min. Afterward they were sonicated in an ultrasound bath to achieve the maximum detachment of the

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Kuo-Tan Li, Jacqueline K. Burns and James P. Syvertsen

accelerate abscission by decreasing the detachment force of mature citrus fruit have been identified ( Burns et al., 2003 ; Hartmond et al., 2000a , 2000b ; Kender et al., 1998 ; Yuan et al., 2002 ). Among these compounds, 5-chloro-3-methyl-4-nitro-1 H

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Naveen Kumar and Robert C. Ebel

of ‘Valencia’ sweet orange following CMNP application. Progressive decline in fruit detachment force (FDF) was observed following CMNP treatment, which showed the occurrence of cell wall loosening in AZ tissue ( Kumar and Ebel, 2015 ). The decline in

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Juan Carlos Melgar, Jill M. Dunlop, L. Gene Albrigo and James P. Syvertsen

harvesting in June, the previously drought-stressed trees apparently had a lower fruit detachment force than those trees that were well watered until the end of May 2007. There is a timing issue that needs to be resolved, however, because no differences were