RESPONSE OF STRAWBERRY (FRAGARIA-VESCA L) STRAINS TO CYTOKININ IN-VITRO

The response of different strawberry (Fragaria vesca L.) strains to be nzylaminopurine (BAP) in vitro was studied. The strains were marked by mutations affecting pigmentation, formation of runners, type of plant development, etc. Test explants taken from aseptically grown seedling s had terminal buds with two cotyledons, BAP concentration in the medi um was 0.1-3 mg/l. The response of explants to BAP was manifested in t he formation of multiple shootlike structures and simple leaves, reduc ed anthocyan pigmentation, and decreased leafstalk length. Quantitativ e characteristics of these changes depended an BAP concentration and d uration of cultivation. At the same time the intensity of response (in respect to each trait) was strain-specific, suggesting that sensitivi ty of strawberry plants to BAP Is genotype-dependent.