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Potato tuber greening risk is associated with tuber nitrogen content


Tanios, S and Tegg, R and Eyles, A and Thangavel, T and Wilson, CR, Potato tuber greening risk is associated with tuber nitrogen content, American Journal of Potato Research pp. 1-7. ISSN 1099-209X (2020) [Refereed Article]

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Copyright Statement

Copyright The Potato Association of America 2020. This is a post-peer-review, pre-copyedit version of an article published in American Journal of Potato Research. The final authenticated version is available online at:

DOI: doi:10.1007/s12230-020-09786-0


Tuber greening is one of the major causes of quality loss in the potato industry, however, the impact of nitrogen in-field fertilisation on this visual defect remains unknown. Two field experiments, one in Tasmania with final N treatment rates of 40, 100 and 190 kg N ha-1 for Nicola and 35, 95 and 185 Kg N ha-1 for Maranca, and another in South Australia with N rates of 100, 200 and 300 kg ha-1 for Maranca, showed a positive linear relationship (R2 = 0.99, 0.86 and 0.90, respectively) between tuber N content and tuber greening, as determined by chlorophyll content. However, increased N fertilisation rates did not directly translate to increased tuber N content, with responses appearing to be variety specific. We conclude that tuber N content is a risk factor associated with tuber greening, but the manipulation of tuber N content through N fertilisation rate is not straightforward and may depend on variety and location.

Item Details

Item Type:Refereed Article
Keywords:chlorophyll, nitrogen fertilisation, potato, tuber greening, tuber nitrogen
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Horticultural production
Research Field:Post harvest horticultural technologies (incl. transportation and storage)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Field grown vegetable crops
UTAS Author:Tanios, S (Dr Sabine Tanios)
UTAS Author:Tegg, R (Dr Robert Tegg)
UTAS Author:Eyles, A (Dr Alieta Eyles)
UTAS Author:Thangavel, T (Dr Tamil Thangavel)
UTAS Author:Wilson, CR (Professor Calum Wilson)
ID Code:139303
Year Published:2020
Web of Science® Times Cited:1
Deposited By:TIA - Research Institute
Deposited On:2020-06-09
Last Modified:2020-07-10
Downloads:9 View Download Statistics

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