THE COMPARISON BETWEEN FOUR POTATO CULTIVARS MULTIPLE AXILLARY BUD MICROPROPAGATION SYSTEM EFFICIENCY
Keywords:
micropropagation, axillary bud, hormonal balance, culture mediumAbstract
The growth in vitro of several potato cultivars (Amelia, Christian, Nicoleta and
Roclas) on media containing plant growth regulators has been studied with a view to
accelerating micropropagation of slow-growing cultivars. Whilst 0,5 mg/l GA3+0.1
mg/l IAA substantially increased the height of plantlets of most cultivars, the
combination of 0,1 mg/l GA3+0,1 mg/l IAA+ 1,5 mg/l BAP was more effective in
increasing the number of shoots which could subsequently be cultured. Using PM
medium, a specific medium designed for potato, slow-growing or recalcitrant
cultivars, such as Amelia, could be multiplied more rapidly than on basic Murashige
& Skoog medium. Cultivars studied showed wide variation in their response to the
plant regulators, best results being obtained for the cultivar Nicoleta.
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