Effects of apple branch girdling on retention and quality of fruit and vegetative growth

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dc.contributor.authorMitchell, Carl Eugeneen
dc.contributor.departmentHorticultureen
dc.date.accessioned2014-03-14T21:37:49Zen
dc.date.adate2009-06-11en
dc.date.available2014-03-14T21:37:49Zen
dc.date.issued1994en
dc.date.rdate2009-06-11en
dc.date.sdate2009-06-11en
dc.description.abstractIn 1992, branches on ‘Triple Red Delicious’/M.7 were girdled. A factorial arrangement of girdling treatments (control, 9-mm girdle + uncovered, 9-mm girdle + electric tape, 9-mm girdle + TreeKote), and timings (0, 15, 30, 60, 90 days after full bloom (DAFB)) was used. With ‘Golden Delicious’/M.7, branch treatments were control, scored, and 6-mm, 9-mm, 12-mm electric-tape-covered girdles, each applied at 0, 15, 30, and 60 DAFB. In 1993, treatments on both cultivars were control, 9-mm uncovered girdle, and pruning saw wound. Each was applied at 0, 7, 14, and 21 DAFB. Each girdle was a complete ring of bark; pruning saw wound was removal of bark using a pruning saw; scoring was a knife cut through the bark. In 1992, the two cultivars responded similarly to girdling. Effects were greatest with treatments at 0 to 30 DAFB and included increased fruit set or retention, temporary suppression of vegetative growth (except watersprouts), and increased levels of soluble solids in the fruit. Treatments affected starch levels in the fruit and flesh firmness, but these effects were variable. In 1993, the two cultivars responded similarly to the main effects of girdling, which caused increased crop density and yield efficiency. Girdling increased mean apple diameter, weight, and soluble solids on ‘Triple Red Delicious’/M.7 branches. Fruit diameter was reduced on ‘Golden Delicious’/M.7 branches. Girdling affected flesh firmness in both cultivars, but these results were variable.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 87 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-06112009-063028en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06112009-063028/en
dc.identifier.urihttp://hdl.handle.net/10919/43114en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1994.M583.pdfen
dc.relation.isformatofOCLC# 31482700en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1994.M583en
dc.subject.lcshApples -- Growthen
dc.subject.lcshApples -- Qualityen
dc.subject.lcshApples -- Wounds and injuriesen
dc.titleEffects of apple branch girdling on retention and quality of fruit and vegetative growthen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineHorticultureen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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