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Published in Scientific Papers. Series B, Horticulture, Vol. LXVII, Issue 1
Written by Maria GEORGIEVA, Diyan GEORGIEV, Denitsa HRISTOVA

The scientific experiment was conducted in the period 2018-2020 in a collection plantation of the Research Institute of Mountain Stockbreeding and Agriculture in Bulgaria. The plantation was created in the autumn of 2016. The planting scheme of the plants is 3.00/0.50 m. The objective of the study is ׳Tulameen׳ cultivar. Vegetative parameters were monitored: average number of shoots, average thickness and average height of shoots and reproductive: average fruit weight and yield per linear meter. The number of shoots had the highest values in the first year of the experiment (29.33), and their height (1.51 m) and thickness (7.60 mm) in the second year. The highest yield was recorded in the third year (1.48 kg/1 m2). A high to very high positive correlation between shoot height and thickness was reported in all three years. In the first year, a high correlation dependence was registered between shoot height and yield (0.76) and negative in the second (-0.85) and third (-0.51) years of the experiment.

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