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Young-making of sour cherry cultivars and examination of their regenerative characteristics
Published May 23, 2006
102-105

Although a high portion of domestic orchards is cultivated extensively, quality Hungarian sour cherry is a highly demanded product throughout Europe. Trees are slightly pruned, or not pruned at all. Thanks to the unique character of the species, older wood parts are pilling up. Thus, the interior of the canopy is inactive, fruits and shoots con...fine the exterior layer of the canopy.
We established pruning treatments in the sour cherry plantation in the Horticultural Exhibition Garden of the University of Debrecen, involving two age groups in two spacings. The trees are standing on seedling rootstock. The involved varieties were: Érdi bőtermő, Debreceni bőtermő and Kántorjánosi. We examined how to encourage shoot formation and the regeneration of older, pilling wood of the interior canopy parts.
Applying strong rejuvenating cuts, the most shoots were generated on the 3rd and 4th year laterals. Wood parts older than the 3rd year shall be removed by leaving short (2-3cm) stubs. This way, older, passive woodparts can also be made to burst out. From the examined varieties the Kántorjánosi showed the most favourable regenerative ability. Due to summer pruning, more shoots regenerated on the axis of the trees, than on those rejuvenated in the dormant season.

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