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Evaluation of growth and fertility in chosen columnar apple-tree varieties
Brázdová, Ludmila ; Zíka, Lukáš (advisor) ; Súkeníková, Tereza (referee)
This paper deals with the evaluation of growth and fertility in selected apple varieties. I will discuss the range of columnar apple trees, which represent a further step in the development of growing shapes. Eleven different varieties grafted onto two different rootstocks was assessed. Planting was establish in the spring of 2013, the clamp 3 x 0,8 m. The trees were planted as a two-year vaccinees.
The aim of the study was to evaluate and compare the increase in trunk diameter, the intensity of growth and yield of selected columnar apple varieties, before and after the end of their vegetation. It was necessary to evaluate the cross-sectional area strain in (cm2), increase in cross-sectional area strain in (cm2), average fruit weight (g), crown height (m), absolute yield (kg) per tree, specific yield on (cm2) cross-sectional area, yield (kg) on increase in area strain, area yield (t / ha) and specific yield on the crown height (kg / m).
In the theoretical part I will deal with the history of apple growing and growing development of various shapes, characteristics of apple trees, their significance and composition. Further I will discuss demands on the growing the apple tree and its treating. At the same time I will mention the major diseases and pests. At the end of this part I will describe harvesting methods and proper storage.
The practical part is focused on the experiment itself and its subsequent evaluation. I will mention the location and characteristics of the habitat where the apple tree grew. I will describe specific columnar varieties and rootstocks used. I will characterize the specific location of the varieties grown and the activities that were implemented during the evaluation period of the experiment.
In conclusion, the results have been evaluated, to which I arrived during the entire measurements. This part contains the observed values displayed in two tables. For a better overview of the data obtained and the results they are displayed graphically. At the end there is a complete summary of the whole work.
For the most of the results it has been proved that a base affects the intensity of growth and yield. The biggest growth area strain (cm2) had a variety 'Cumulus' on rootstock M 26, but on the rootstock M 9 the increase was significantly lower. When assessing absolute yield the highest values were observed in a variety 'Red Spring' on rootstock M 26, followed by the yield of variety 'Slendera' on rootstock M 26. The lowest yield was observed in cultivar 'Cumulus' on M 9. In these cases, we can confirm the influence of rootstock of variety. When evaluating the specific yield on increase strain the highest yield was at varieties 'Red Spring' on M 26, followed by a variety 'Slendera', where the yield was greater on the rootstock M 9. Here it is impossible to unequivocally confirm that the rootstock M 26 has a higher yield than the rootstock M 9.
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