AFRICAN VIOLET (SAINTPAULIA IONANTHA L.) EXVITROPLANTLETS ACCLIMATIZATION, IN DIFFERENT TYPES OF SUBSTRATUM

In micropropagation, the success of cloning depends on the surviving process of the exvitroplantlets after the acclimatization and on the quality of the resulting planting material. For the planting material, coming from vitroculture, to be competitive with the one obtained through classic vegetative multiplying, especially for African violets, it has to be cheaper and better quality. So, the ex vitro” planting of the African violet plantlets, directly into greenhouse conditions, is possible and favorable if the substratum in which the acclimatization is being made is efficient and low cost. From the seven types of substratum we tested for exvitroplantlets acclimatization, the most efficient, regarding the post acclimatization survival percent, was 100%, the Top soil” substratum, a worm compost, the exvitroplantlets growth spores set on this type of substratum having a very good rooting, these data being meaningful statistically speaking.