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The potential productivity of apple trees in the intensive system by rational application of tree pruning in the specific conditions of the North Zon

Author: Şaganean Radu
Degree:doctor of agriculture
Speciality: 06.01.07 - Fruit Production
Scientific adviser: Valerian Balan
doctor habilitat, professor, Agrarian State University of Moldova
Scientific council:


The thesis was presented on the 18 March, 2009
Approved by NCAA on the 18 June, 2009


Adobe PDF document0.28 Mb / in romanian


CZU 634.11: 631.542: 631.841

Adobe PDF document 1.15 Mb / in romanian
152 pages


Apple tree, Pruning system, Foliage fertilisation, Intensive orchard, Thinning of fruits,Variety.


In 2004-2007 in the north area of the Republic of Moldova were studied the influence of the pruning systems and foliage fertilisation to the potentiel productivity of four apple varieties grafted on the rootstock M9.

The most efficient pruning system for varieties Pinova, King Jonagold, Čampion and Gala Must has been the system with the pruning of branches age of 3-4 years as performing on the central axis and on the branches of semiskeleton. A fruit production average is: Gala Must (39,8 t / ha); Pinova (38,2 t / ha); Čampion (35,0 t / ha); King Jonagold (33,4-33,9 t / ha).

In all options, with fruit thinning, the fruit production was decreasing quantity but at the same time it increased qualitatively. The highest average harvest during the period 2005-2007 compared to the rest of studying the methods of thinning were more efficient in variant 3; King Jonagold-30,9 t/ha, Čampion-29,0 t/ha, Pinova-27,3 t/ha. The optimal thining method for variety Gala Must (35,3 t/ha) was the varienty 2.

The fruit production increased considerably in option with nitrogen fertilizer (urea) in a concentration of 1,2%, in comparison with a variant demonstrates (without fertilization), constituting an average 47,0 tons per hectare for the variety Gala Must and 43,8 t / ha for the variety Pinova.