EXPERIMENTS FOR OBTAINING, MAINTENANCE AND PROPAGATION OF CERTIFIED PLANTING MATERIAL FROM RASPBERRY IN RIMSA TROYAN
Since 1992 in RIMSA Troyan a series of experiments have been carried out for obtaining, maintenance and preliminary propagation of virus-free planting material from raspberry. After a preliminary pomological selection and biological indexation on Rubus occidentalis and serological tests by ELISA, the complex of aphid-borne viruses and nematode-borne viruses (RRV, SLRV, TBRV, AMV) was controlled. Nuclear (pre-basic) plants were obtained from the major raspberry cultivars in our country, maintained in individual pots, sterile substrate, in isolation facilities, covered with net, as well as under in vitro conditions. A method was developed for quick preliminary propagation of the nuclear plants through root cuttings and adventitious buds. Shoot-forming capacity and vegetative characteristics and morphological features of 5 Bulgarian and 6 introduced cultivars were studied. The obtained trans¬plants from the containers had a perfect root system and in spite of the fact that they did not attain the indicators of the Bulgarian standards with regard to the shoot thickness, they provided 100% rooting by planting in the field. Variants were elaborated to increase the efficiency of use of basic raspberry mother plantations.
Dragoyski, K., Mihovska, B., Georgieva, M. and Stefanova, B. (2013). EXPERIMENTS FOR OBTAINING, MAINTENANCE AND PROPAGATION OF CERTIFIED PLANTING MATERIAL FROM RASPBERRY IN RIMSA TROYAN. Acta Hortic. 981, 425-430
raspberry, certified planting material