MICROMULTIPLICATION RESEARCH REGARDING POTATO PRODUCTION FROM FOUR ROMANIAN VARIETIES SUITABLE FOR SUSTAINABLE AGRICULTURE

Producing healthy biological material represents a laborious activity because in each cultivation year the tuber can be infected with viruses, mycoplasma and bacteria. Using microtubers produced in vitro from varieties suitable for sustainable agriculture, can be obtained a phytosanitary healthy cloned material, a natural product, without chemical residues, a clean foodstuff able to satisfy increasing consumers and EU standards requirements(4,5,7). Our experiment was concentrated on elaborating a rapid and efficient micromultiplication protocol for potato obtained from 4 varieties suitable for sustainable agriculture (ASTRAL,CHRISTIAN, ROCLAS and MAGIC), using micro tubers obtained in vitro by an single nod explant method. A total number of 7 experimental variants containing of phytohormons formula were tested. It has been noticed that the variant number 7 (V7C= MS (1962)+2,25 mg /lBAP+ 0,18 mg./l IAA, 8 gr./l agar+ 30 gr./l zaharoza) assured a high morphogenetic response. The utilization of these method will open new possibilities of understanding the mechanisms by which artificial cultivation conditions will influence vegetal entities and represents a totally reproducible guide mark for all who are interested in obtaining planting material for potatoes from varieties suitable for sustainable agriculture(8).