Pre-harvest bagging and coating treatment effects on lenticel discolouration in 'B74' mango fruit

Nguyen, T. M., Joyce, D. C., Gupta, M., Hofman, P. J., Macnish, A. J. and Marques, J. R. (2016). Pre-harvest bagging and coating treatment effects on lenticel discolouration in 'B74' mango fruit. In: R. Drew, M. Fitch and J. Zhu, XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): IV International Symposium on Papaya, VIII International Pineapple Symposium, and International Symposium on Mango. XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): IV International Symposium on Papaya, VIII International Pineapple Symposium, and International Symposium on Mango, Brisbane, Australia, (377-384). 17-22 August, 2014. doi:10.17660/ActaHortic.2016.1111.54


Author Nguyen, T. M.
Joyce, D. C.
Gupta, M.
Hofman, P. J.
Macnish, A. J.
Marques, J. R.
Title of paper Pre-harvest bagging and coating treatment effects on lenticel discolouration in 'B74' mango fruit
Conference name XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): IV International Symposium on Papaya, VIII International Pineapple Symposium, and International Symposium on Mango
Conference location Brisbane, Australia
Conference dates 17-22 August, 2014
Proceedings title XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): IV International Symposium on Papaya, VIII International Pineapple Symposium, and International Symposium on Mango   Check publisher's open access policy
Journal name Acta Horticulturae   Check publisher's open access policy
Place of Publication Leuven, Belgium
Publisher International Society for Horticultural Science
Publication Year 2016
Year available 2016
Sub-type Fully published paper
DOI 10.17660/ActaHortic.2016.1111.54
Open Access Status Not Open Access
ISBN 9789462611054
ISSN 0567-7572
Editor R. Drew
M. Fitch
J. Zhu
Volume 1111
Start page 377
End page 384
Total pages 8
Collection year 2017
Language eng
Formatted Abstract/Summary
'B74' mango fruit are sensitive to lenticel discolouration (LD). Exposure of the fruit to water during production and postharvest handling can increase LD. We propose that water infiltration into the lenticel cavity increases turgor in adjacent cells that leads to tissue strain, cellular stress and defence, and enzymatic browning. In the current study, we tested the efficacy of pre-harvest fruit bagging and coating treatments to reduce water infiltration and LD. Individual fruit on 'B74' trees at a commercial orchard were covered with a white paper bag, or coated with either 5% RainGard™ (a cracking suppressant), or 5% Raynox® (a carnauba wax-based coating) at two months before harvest. RainGard™ and Raynox® were re-applied to fruit at one month and one day before harvest. Additional fruit were coated with 2.5% Natural Shine™ TFC210 (a carnauba wax-based coating) at one day before harvest. The fruit were harvested, dipped in a detergent and a fungicide, and brushed. They were exposed to 10 μL L-1 ethylene at 20°C and allowed to ripen. The result showed that bagging and coating with Natural Shine™ TFC210 were the most effective treatments. They reduced LD on 'B74' fruit by 30-55% and 39-43% at the green mature and full ripe colour stages, respectively, as compared to the non-bagged and non-coated control. Pre-harvest bagging and coating treatments did not affect fruit firmness and lenticel morphology.
Keyword 'B74' mango
Bagging
Coatings
Dye uptake
Lenticel
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

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