ISHS Acta Horticulturae 577: VII International Symposium on Plum and Prune Genetics, Breeding and Pomology
BEHAVIOUR OF MICROPROPAGATED OWN-ROOTED TREES OF PLUM CV. STANLEY IN THE ORCHARD. 3. MORPHOLOGICAL AND POMOLOGICAL CHARACTERISTICS |
| Authors: | S. Popov, A. Zhivondov |
| Keywords: | Own-rooted trees, micropropagation, in vitro, plum, behaviour, characteristics, P. domestica |
| Abstract:
An orchard study was conducted on the behaviour of own-rooted micropropagated trees, including the morphological and pomological characteristics of this planting material type. The objective of the study was to establish the effect of in vitro conditions and micropropagation technology on the pomological and morphological characteristics of fruits of plum cv. Stanley. Own-rooted micropropagated plants of plum cv. Stanley were planted together with trees traditionally produced by budding on clonal (GF655/2) and seedling (Dzhanka 4) rootstocks. Comparative studies were made on leaf blade size and area, as well as on the structure of annual increment in the variants tested. The pomological characteristics of fruits and stones were established through biometric measurements. The difference in leaf size was significant only during the first vegetation after planting in the field. Similar results were obtained for leaf blade area. During the initial bearing phenophase, the structure of annual increment length in the own-rooted trees did not differ from that of the control in terms of the percentage of woody-, mixed- and flowering branches. In the trees budded on Dzhanka 4, the participation of feathers was at the expense of elongated spurs. No pomological deviations in terms of fruits and stones were established in result of the micropropagation technology used. This was also confirmed by the relatively small differences in the biometrical measurements of the separate variants. | |
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