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Effect of nitrogen on the skin colour and other quality attributes of ripe ‘Kensington Pride’ mango (Mangifera indica L.) fruit

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Nguyen, H., Hofman, P. J., Holmes, R., Bally, I. S.E., Stubbings, B. and McConchie, R. (2004) Effect of nitrogen on the skin colour and other quality attributes of ripe ‘Kensington Pride’ mango (Mangifera indica L.) fruit. Journal of Horticultural Science & Biotechnology, 79 (2). pp. 204-210.

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Abstract

Near-ripe ‘Kensington Pride’ mango (Mangifera indica L.) fruit with green skin colour generally return lower wholesale and retail prices. Pre-harvest management, especially nitrogen (N) nutrition, appears to be a major causal factor. To obtain an understanding of the extent of the problem in the Burdekin district (dry tropics; the major production area in Australia), green mature ‘Kensington Pride’ mango fruit were harvested from ten orchards and ripened at 20 ± 0.5 O C. Of these orchards, 70% produced fruit with more than 25% of the skin surface area green when ripe.

The following year, the effect of N application on skin colour and other quality attributes was investigated on three orchards, one with a high green (HG) skin problem and two with a low green (LG) skin problem. N was applied at pre-flowering and at panicle emergence at the rate of 0,75,150,300 g per tree (soil applied) or 50 g per tree as foliar N for the HG orchard, and 0,150,300,450 g per tree (soil applied) or 50 g per tree (foliar) for the LG orchards. In all orchards the proportion of green colour on the ripe fruit was significantly (P<0.05) higher with soil applications of 150 g N or more per tree. Foliar sprays resulted in a higher proportion of green colour than the highest soil treatment in the HG orchard, but not in the LG orchards.

Anthracnose disease severity was significantly (P<0.05) higher with 300 g of N per tree or foliar treatment in the HG orchard, compared with no additional N. Thus, N can reduce mango fruit quality by increasing green colour and anthracnose disease in ripe fruit.

Item Type:Article
Business groups:Horticulture and Forestry Science
Additional Information:Reproduced with permission from Headley Brothers Ltd. Access to published version may be available via Publisher’s website.
Keywords:Kensington Pride; Mangifera indica L.; quality attributes; nitrogen; green fruit colour.
Subjects:Plant culture > Fruit and fruit culture > Culture of individual fruits or types of fruit > Stonefruit
Agriculture > Agriculture (General) > Fertilisers
Live Archive:28 Jun 2004
Last Modified:31 Oct 2022 03:32

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