ISHS Acta Horticulturae 734: VIII International Symposium on Plum and Prune Genetics, Breeding and Pomology
EFFECT OF TWO PROPAGATION METHODS ON GROWTH AND FRUIT YIELD OF PLUM CULTIVARS |
| Authors: | L. Klaas, K. Kahu |
| Keywords: | Prunus domestica, tissue culture, grafting, growth, yield |
| Abstract:
The experiment was established at the Polli Horticultural Institute (PHI) South-Estonia in the spring of 1998, with 9 plum cultivars: ‘Emma Leppermann’, ‘Wilhelmine Späth’ (German origin), ‘Duke of Edinburgh’, ‘Queen Victoria’ (English origin) and ‘Märjamaa’, ‘Noarootsi Punane’ (Estonian landraces), ‘Polli Munaploom’ and ‘Vilnor’ (bred at the PHI), and ‘Liivi Kollane Munaploom’, a landrace originated in a larger territory from Baltic to Belarus. The trees were propagated by grafting on Prunus cerasifera Ehrh. rootstocks or in vitro by tissue-culture method. The first yields in 2001 did not differ significantly between the propagation methods. The next year, the trees propagated on rootstock produced higher yield, but in 2003, the tissue-culture-trees were more productive. The general conclusion is that during three crop-years, the propagation methods had little effect on fruit yield, fruit size and tree growth. The cultivars ‘Märjamaa’ and ‘Queen Victoria’ were more productive on rootstock than on trees propagated by tissue culture. | |
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