Irena Wójcik

Wpływ głębokości sadzenia drzew na plonowanie i jakość owoców jabłoni odmiany 'Elstar' na M.9 [Effect of depth of planting on croping and fruit quality of apple trees cv. 'Elstar' grafting on M.9]

The results obtained in this study shown that depth of planting significantly affected the yield. The trees planted of the place of budding 7 cm under the ground gave about twice lower yield per tree and hectar and growth the more stranger than others planted upper. Depth of planting had no significantly effect on fruit quality. Fruit mass and percent of fruits with upper 75% of coloured surface were more (significantly) influenced by weather conditions in different years.

Wpływ podkładki na kwitnienie i owocowanie trzech odmian jabłoni [Influence of rootstocks on flowering and yielding of three apple cultivars]

During seven years of study, only in 2001 year cv. Jonagold had significantly more flowers on the trees budded on M.9 rootstock than on M.26, and cv. Red Boskoop flowering was significantly stronger on M.26 than on M.9. During all period of observation, rootstocks did not influence significantly the flowering intensity of cv. Gloster. In orchard with hight density of trees (2460 szt. × ha -1 ), the first symptoms of irregularity of flowering were observed in the 8 th year (1998) after plented. In 2002 year all trees in the experimental orchard did not flowered. In our condition the bevstyielding observed for diploidal cultivar Gloster.