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

The aim was to observe some characteristics dependences between vegetative and reproductive characteristics of a candidate raspberry cultivar 'Troyanski biser’ at the foothill environment with over wetting soils. The scientific experiment was conducted during the period of 2018-2020 in a collection plantation of the Research Institute of Mountain Stockbreeding and Agriculture in Troyan. The objective of study was a candidate cultivar 'Troyanski biser’ propagated through in vitro technology. The vegetative and reproductive indicators were analyzed, such as average number of shoots (1 m2), average height (cm) and average thickness (mm) of shoots and average fruit weight (g), and average yield (kg/1 m2). The largest average number of shoots were formed in 2018 (17.33 total number) during the experimental period. The highest average height (146 cm) was registered during the same year. The highest values for the average thickness were registered in 2019 (9.14 mm). The average yield was comparatively stable for the whole period, as it was the highest for the second experimental year (1.33 kg).

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