Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XXVI, Issue 1
Written by Alexandra-Mihaela NAGY, Paula BOBOC (OROS), Corina CĂTANĂ, Maria-Mihaela ANTOFIE, Camelia SAVA SAND
Solanum tuberosum L. is considered a major food/feed source since ancient times for both humans and animals. Potato cultivation is important at the global level to its extraordinary yield per unit area, being cultivated in over 120 countries worldwide. Over time, the consumption tendencies regarding potato have changed, and new varieties including purple flesh, are gradually growing in popularity. Purple flash potatoes are native to Peru but during the past decades became popular in Europe as well as in Romania. Among the main varieties of popular purple flash potatoes grown in Romania are ʻSalad Blue’ and 'Violet Negretin’ both being rich in nutritional substances including anthocyanins. The scope of this study is to analyse the in vitro initiation and micropropagation of these cultivars. In this regard the best cultivation media is Murashige & Skoog (1962, MS62) for micropropagation. By adding Gamborg vitamins to MS62 minerals we also tested the effects of chitosan (2 mg/l) and/or active charcoal (2 g/l). Visible positive effects on micropropagation only on the culture medium supplemented with active charcoal were obtained.
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