Collezione di germoplasma di carciofo sanitariamente qualificata
Barba, M.; Tiberini, A.; Taglienti, A.
Acta Italus Hortus
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SocietÓ di Ortoflorofrutticolturn Italiana (SOl)
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|Abstract in English:|
The production of virus-free propagative plant material is the prerequisite to obtain artichoke
plantlets responding to qualitative and requirements considered in the frame of EU and national rules. This crop is affected by many diseases that may cause severe economic losses, i.e., a significant decrease in the quantity and quality of artichoke yield. Among
other pathogens, more than 20 viruses are known to infect artichoke causing serious concern to the artichoke industry. Vegetative propagation by crown segments and offshoot facilitates the spread of viral infections from one plant to another seriously compromising
yield and quality of production. In view of above it is crucial for artichoke implantation of new elds to have available virus-free plantlets of the main artichoke ecotypes grown in ifferent productive regions and to have diagnostic protocols to assess the presence
of viral pathogens especially when the new plantlets have been produced by in vitro propagation. To reach these objectives, in the last years we have set up and successfully applied different diagnostic methods in detecting the most important viruses present in both in vivo and in vitro cultured artichoke germplasm. We, also, describe the results obtained in eliminating viruses from different artichoke clones using three techniques: in vitro termotherapy, meristem shoot culture and cryotherapy, an innovative technique.