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Author: Şaganean Radu Degree: doctor of agriculture Speciality:  06.01.07 - Fruit Production Year: 2009 Scientific adviser: Valerian Balan doctor habilitat, professor, Agrarian State University of Moldova Institution: Scientific council:

Status The thesis was presented on the 18 March, 2009 Approved by NCAA on the 18 June, 2009 Abstract – 0.28 Mb / in romanian Thesis CZU 634.11: 631.542: 631.841 1.15 Mb / in romanian 152 pages

Keywords

Summary

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.

Oficial Reviewers

• Constantin Dadu
  doctor habilitat, professor, Practical Scientific Institute of Horticulture and Food Technology
• Ion Grosu
  doctor, associate professor (docent)

 Theses