NORMALIZATION OF GRAPE PLANTS <i>IN VITRO</i> FROM PHYTOPLASMA
Thermal treatment was used as a method of healing plants from phytoplasm. To carry out thermotherapy, a Binder KBWF 240 climatic chamber was used to cultivate grape plants of ‘Tsitronnyi Magaracha’ variety in vitro in simulated conditions during 14 days of treatment period. The results of samples re-testing showed the effectiveness of treatment of this grape disease: only one specimenout of 13 samples of‘ Tsitronnyi Magaracha’grape variety contained a latent form of phytoplasm of vine wood blackening of Bois noir . To heal grape plants in vitro , it is advisable to use the developed technological operations using thermotherapy in a climatic chamber, which makes it possible to clear off the planting material from the latent form of phytoplasm associated with grapevine wood blackening of Bois noir .