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Russeting in ‘Apple’ Mango: Triggers and Mechanisms

Institute of Horticultural Production Systems, Leibniz University Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany
Author to whom correspondence should be addressed.
Plants 2020, 9(7), 898;
Received: 3 July 2020 / Revised: 10 July 2020 / Accepted: 14 July 2020 / Published: 16 July 2020
Russeting is an important surface disorder of many fruitcrop species. The mango cultivar ‘Apple’ is especially susceptible to russeting. Russeting compromises both fruit appearance and postharvest performance. The objective was to identify factors, mechanisms, and consequences of russeting in ‘Apple’ mango. Russeting was quantified on excised peels using image analysis and a categorical rating scheme. Water vapour loss was determined gravimetrically. The percentage of the skin area exhibiting russet increased during development. Russet began at lenticels then spread across the surface, ultimately forming a network of rough, brown patches over the skin. Cross-sections revealed stacks of phellem cells, typical of a periderm. Russet was more severe on the dorsal surface of the fruit than on the ventral and more for fruit in the upper part of the canopy than in the lower. Russet differed markedly across orchards sites of different climates. Russet was positively correlated with altitude, the number of rainy days, and the number of cold nights but negatively correlated with minimum, maximum, and mean daily temperatures, dew point temperature, and heat sum. Russeted fruit had higher transpiration rates than non-russeted fruits and higher skin permeance to water vapour. Russet in ‘Apple’ mango is due to periderm formation that is initiated at lenticels. Growing conditions conducive for surface wetness exacerbate russeting. View Full-Text
Keywords: Mangifera indica; skin; periderm; cuticle; epidermis; lenticel Mangifera indica; skin; periderm; cuticle; epidermis; lenticel
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MDPI and ACS Style

Athoo, T.O.; Winkler, A.; Knoche, M. Russeting in ‘Apple’ Mango: Triggers and Mechanisms. Plants 2020, 9, 898.

AMA Style

Athoo TO, Winkler A, Knoche M. Russeting in ‘Apple’ Mango: Triggers and Mechanisms. Plants. 2020; 9(7):898.

Chicago/Turabian Style

Athoo, Thomas O., Andreas Winkler, and Moritz Knoche. 2020. "Russeting in ‘Apple’ Mango: Triggers and Mechanisms" Plants 9, no. 7: 898.

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