MICROPROPAGATION OF LESSER KNOWN ANDEAN TUBER AND ROOT
CROPS
(Oxalis tuberosa Molina, Tropaeolum tuberosum Ruiz and Pavon,
Ullucus tuberosus Lozano, Solatium tuberosum L. subsp.
andigena)
FERNANDEZ, C.E., KOSINA, P.
Abstract
The aim of this work has been to find a suitable methodology
for deriving in vitro culture and micro-propagation from nodal segment cultures
of some of the less known Andean root and tuber crops for quick propagation
purposes. Suitable cultivating conditions for micro-tuberisation induction,
regeneration de novo and for in vitro preservation of these tuber and root crops
were observed as well.
In the sequel, MS medium (MURASHIGE et SKOOG, 1962) is a suitable medium for
quick propagation from nodal segment cultures of observed plants. Cultivation
time was 4 weeks. In case of Oxalis tuberosa rooting plants with medium 7,6
nodes (red colored genotype) and 10,4 nodes (light green colored genotype) de\>eloped
(theoretically it means that 7 respectively 10 plants a month can be obtained).
Rooting plants with 6,8 nodes (Ullucus tuberosus), 1,3 nodes (Tropaeolum tuberosum),
5,9 nodes (violet colored genotype ofSolanum tuberosum L.subsp. andigena) and
5,8 nodes (red colored genotype ofSolanum tuberosum L.subsp. andigena) were
obtained. These plants have been found as suitable for repeated propagation.
Key words:
oca, ullucu, mashwa, micropropagation, in vitro