EFFECT OF INTENSIVE REGENERATION PRUNING OF FROSTBITTEN PEACH TREES ‘HARBINGER’ CV. ON THEIR GROWTH AND YIELDING
Bożena Radajewska
University of Life Sciences in PoznańMichał Szklarz
University of Life Sciences in PoznańAbstract
Studies were carried out in the years 2006–2008 in Przybroda near Poznań. Objects of studies consisted of 8-year old peach trees ‘Harbinger’ cultivar grown on three rootstocks: Manchurian Peach, Sand Cherry and Rakoniewicka Seedling. Tree crowns had a vase form and they were strongly damaged by frost during the winter 2005/2006. In spring 2006, intensive tree pruning was carried out. The objective of the studies was the estimation of the effect of a radical pruning of frostbitten trees on their regeneration and yielding, as well as to estimate the role of rootstocks in this process. Studies have shown that the tree pruning evoked a very strong compensation growth, the reaction of trees was the stronger, the more intensive was the tree pruning. As a result of the pruning, after 3 years, the lowered tree height (on the average by 40–50 cm) was maintained in relation to the control trees. After pruning, in the tree crown, longer productive long-shoots with diameters > 0.5 cm, developed as compared with the control. However, the radical pruning of trees caused in the third year after pruning a decrease in tree yielding from 30 to 40%, in comparison with the not pruned trees.
Keywords:
peach, regeneration pruning, rootstock, growth, yieldingReferences
Dudziński F., Hołubowicz T., 1985. Wpływ cięcia i nawożenia na regenerację i plonowanie brzoskwiń odmiany ‘Siewka Rakoniewicka’. Rocz. AR Pozn., 66, 89–99.
Marini R.P., 1984. Vegetative growth of peach trees following three pruning treatments. Hort. Sc., 146, 287–292.
Marini R.P., 2002. Pruning peach trees. Hortic. Nr 422-020.
Mika A., 1979. Związek między intensywnością wzrostu a kwitnieniem i owocowaniem. [w:] Fizjologia Roślin Sadowniczych, PWN, Warszawa, 409–419.
Radajewska B., 1989. Wpływ cięcia odmładzającego na regenerację i przezimowanie drzew brzoskwiń ‘Siewki Rakoniewickiej’ i ‘Siewki Jerzykowskiej’. Rocz. AR w Poznaniu, 202, 163–176.
Radajewska B., Andrzejewski M., 2004. The influence of rootstock and training system on growth and yield peach ‘Harbinger’. Folia Univ. Agric. Stetin. 240, Agricultura, 96, 159–162.
Radajewska B., Szklarz M., 2006. Uszkodzenia mrozowe brzoskwiń i moreli w Wielkopolsce. Sad Nowoczesny 4, 14–15.
University of Life Sciences in Poznań
University of Life Sciences in Poznań
License
Articles are made available under the conditions CC BY 4.0 (until 2020 under the conditions CC BY-NC-ND 4.0).
Submission of the paper implies that it has not been published previously, that it is not under consideration for publication elsewhere.
The author signs a statement of the originality of the work, the contribution of individuals, and source of funding.
