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Fusarium dry rot of potato is a devastating post-harvest losses (vegetables) disease affecting both seed potatoes and potatoes for human consumption. [3] Dry rot causes the skin of the tuber to wrinkle. The rotted areas of the potato may be brown, grey, or black and the rot creates depressions in the surface of the tuber.
'Vitelotte' potatoes have a dark blue, almost black, skin and dark violet-blue flesh; they have a characteristic nutty flavour and smell of chestnuts. The colour is retained in cooking, and is due to natural pigments in the anthocyanin group of flavonoids. [4] The plants mature late and, compared to modern varieties, are relatively low-yielding.
The Red Pontiac (also known as Dakota Chief) is a red-skinned early main crop potato variety originally bred in the United States, [1] and is sold in the United States, Canada, Australia, Marruecos, the Philippines, Venezuela and Uruguay. It arose as a color mutant of the original Pontiac variety in Florida [2] by a J.W. Weston in 1945. [3]
These potatoes also have coloured skin, but many varieties with pink or red skin have white or yellow flesh, as do the vast majority of cultivated potatoes. The yellow colour, more or less marked, is due to the presence of carotenoids. Varieties with coloured flesh are common among native Andean potatoes, but relatively rare among modern varieties.
Potato leafroll virus: genus Luteovirus, Potato leafroll virus (PLRV) Potato mop-top virus (spraing of tubers) genus Furovirus, Potato mop-top virus (PMTV) Potato rugose mosaic: genus Potyvirus, Potato virus Y (PVY, strains O, N and C) Potato stem mottle (spraing of tubers) genus Tobravirus, Tobacco rattle virus (TRV) Potato spindle tuber ...
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Black rot Ceratocystis fimbriata Chalara sp. [anamorph] Blue mold rot Penicillium spp. Cercospora leaf spot Cercospora spp. Phaeoisariopsis bataticola = Cercospora bataticola, C. batatas, C. ipomoeae. Charcoal rot Macrophomina phaseolina: Chlorotic leaf distortion Fusarium lateritium Gibberella baccata [teleomorph] Circular spot Sclerotium rolfsii
The Russian blue potato plant produces medium round and oblong tubers with deep purple insides. [1] It is a late season variety of potato. The plants themselves are large, semi-erect, and produce light blue flowers and dark foliage. [2] [3] [4]