The Effect of Preharvest Coating and Nutritional Materials on Postharvest Peel Breakdown of Citrus Fruit

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Material Information

Title:
The Effect of Preharvest Coating and Nutritional Materials on Postharvest Peel Breakdown of Citrus Fruit
Physical Description:
1 online resource (48 p.)
Language:
english
Creator:
Yu, Xiaojing
Publisher:
University of Florida
Place of Publication:
Gainesville, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Master's ( M.S.)
Degree Grantor:
University of Florida
Degree Disciplines:
Horticultural Sciences
Committee Chair:
RITENOUR,MARK A
Committee Co-Chair:
BRECHT,JEFFREY K
Committee Members:
NARCISO,JANICE A

Subjects

Subjects / Keywords:
breakdown -- citrus -- coating -- florida -- fruit -- mg -- mkp -- nutritional -- peel -- postharvest -- preharvest
Horticultural Sciences -- Dissertations, Academic -- UF
Genre:
Horticultural Sciences thesis, M.S.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract:
Marketability of fresh citrus and customer satisfactionare greatly affected by fruit peel condition. Peel breakdown is a physiologicdisorder that usually develops during postharvest handling and may result inhuge economic losses in some years. Previous studies found that peel breakdowncan be reduced by applying a foliar preharvest application of MKP, Mg, or anantitranspirant material.This studies were conducted during the 2011-12 Floridacitrus season to further evaluate these and additional preharvest andpostharvest materials and their possible mechanism(s) in reducing peelbreakdown. All citrus trees and fruit used in this project were from commercialcitrus groves in Vero Beach and Ft. Pierce, FL. Treatments consisted of MKP; 1%,1.5%, or 2% VaporGard (antitranspirant); 2% CaCl2; 1% WashGard (acarnauba coating formulated for field applications); or 1% PDS(a proprietaryadjuvant).Preharvest foliar treatments with CaCl2 neverreduced peel breakdown compared to the water-sprayed control, whereasdifferences with Vapor Gard, PDS, or WashGard were almost always significant.Of the latter group, 2% Vapor Gard, PDS, and WashGard were most effective,usually resulting in 20% to 50% less peel breakdown. Leaf stomatal conductancewas significantly reduced compared to the control 6 and 21 days afterapplication with WashGard, and tended to be lower after treatment with VaporGard or MKP. Fruit with postharvest drench treatments decayed much faster than the fruittreated with preharvest foliar spray. In further postharvest drench studies,washand wax the fruit with fungicide are recommend to reduce the decayrate.
General Note:
In the series University of Florida Digital Collections.
General Note:
Includes vita.
Bibliography:
Includes bibliographical references.
Source of Description:
Description based on online resource; title from PDF title page.
Source of Description:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility:
by Xiaojing Yu.
Thesis:
Thesis (M.S.)--University of Florida, 2014.
Local:
Adviser: RITENOUR,MARK A.
Local:
Co-adviser: BRECHT,JEFFREY K.
Electronic Access:
RESTRICTED TO UF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE UNTIL 2015-05-31

Record Information

Source Institution:
UFRGP
Rights Management:
Applicable rights reserved.
Classification:
lcc - LD1780 2014
System ID:
UFE0044816:00001