Relationships Between Internal Brown Spot and Skin Roughness in Potato Tubers Under Field Conditions
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Internal brown spot (IBS) is a physiological disorder of potato tubers consisting in the appearance of punctiform and/or enlarged rust-coloured necrosis in parenchymal tissues. The IBS disorder leads to important economic impact and yield depreciation since quality, sensory and processing features of tubers may be highly compromised. Nowadays, the causes of IBS are still debated; however, the combination of several genetic, nutritional and environmental factors seems to have a relevant role in modulation of symptoms. In the current work, IBS occurrences together with skin roughness were monitored in potato tubers of different cultivars harvested in 2 years of field trials under different field conditions (environment, irrigation rate). All three IBS-susceptible cultivars used, Luminella, Majestic and Ricciona di Napoli, showed significant IBS incidence. Importantly, incidence and severity increased with tuber size. Ricciona di Napoli was the cultivar most affected by both IBS and skin roughness. Findings showed a strong positive correlation between IBS and skin roughness, suggesting that suboptimal growth conditions may have affected both physiological disorders. The association between IBS and potato skin roughness may provide new insights for the implementation of non-destructive IBS detection in potatoes.
KeywordsAbiotic stress Field trials IBS symptoms Physiological disorder Russeting Solanum tuberosum
This work was supported by the F.E.A.S.R. European funding program (P.S.R. Campania 2007/2013, Measure 124) with the project “Progetto di valorizzazione della patata Ricciona di Napoli - Pat.Ri.Na”.
- Hiller LK, Thornton RE (2008) Managing physiological disorders. In: Johnson DA (ed) Potato health management series. The American Phytopathological Society, St. Paul, pp 235–245Google Scholar
- Hiller LK, Koller DC, Thornton RE (1985) In: Li PH (ed) Potato physiology. Academic Press, New York 389 ppGoogle Scholar
- Mc Kinney HH (1923) Influence of soil temperature and moisture on infection of wheat seedlings by Helminthosporium sativum. J Agric Res 26:195–217Google Scholar
- Palta JP (1996) Role of calcium in plant responses to stresses: linking basic research to the solutions of practical problems. Hortscience 31:51–57Google Scholar
- Pentangelo A, Parisi B, Lahoz E, Iannucci M, Gaudiano G, Di Mauro A (2012) Recupero e caratterizzazione morfologica, produttiva e qualitativa della patata Ricciona di Napoli. Proceedings of IX Italian National Congress on Biodiversity, Valenzano (BA) 2:178–183Google Scholar
- Pentangelo A, Parisi B, Raimo F, Mandolino G, Pane C (2017) Maculatura ferruginea, nuovi studi per la prevenzione. L’Informatore Agrario 41:43–46Google Scholar
- Peters J, Wiltshire J (2006) Preserving potato skin finish during storage. Research review, British Potato Council, Oxford, pp 37Google Scholar
- StatSoft Inc (2011) STATISTICA (data analysis software system), version 10. www.statsoft.com
- Sterrett SB, Henninger MR, Lee GS (1991) Relationship of internal heat necrosis of potato to time and temperature after planting. J Am Soc Hortic Sci 116:697–700Google Scholar
- Tzeng KC, Kelman A, Siomns KE, Kelling KA (1986) The relationship of calcium nutrition to internal brown spot of potato tubers and sub-apical necrosis of sprouts. Am Potato J 73:397–407Google Scholar
- Vanoli M, Rizzolo A, Spinelli L, Parisi B, Torricelli A (2012) Non-destructive detection of Internal Brown Spot in potato tubers by time-resolved reflectance spectroscopy: preliminary results on a susceptible cultivar. In: Proceeding the International Conference of Agricultural Engineering, CIGR-Ageng2012, Valencia, Spain. Article No. P1370Google Scholar