Fruit bearing of the primocane raspberry cultivar ‘Autumn Bliss’ in the Troyan region

The scientific experiment was conducted during the period of 2018-2019 in a collection plantation of the Research Institute of Mountain Stockbreeding and Agriculture in Troyan.
The objective of the study was the primocane raspberry cultivar ‘Autumn Bliss’. The plantation was created in the autumn of 2016. Planting distances are 3.00×0.50 m.
The vegetative parameters, such as average number, average height and average thickness of the shoots were observed.
An intermediate fruit bearing of the raspberry plants was recorded between the spring-summer and summer-autumn harvests, because of the growth of shoots that bloom and form fruits.
From the reproductive indicators, the average fruit weight, the yield of 1 m² in the spring-summer, intermediate and summer-autumn harvests were recorded.
Greater shoot height (1.22 m) and thickness (9.74 mm) were recorded in the second year.
The average highest yield was obtained from the spring-summer harvest with 0.540 kg m^‑2. In the first year, a very high correlation dependence between number of shoots and height (0.98) and number of shoots with yield (0.94) was recorded.

V Balkan Symposium on Fruit Growing

D. Georgiev, M. Georgieva, D. Hristova, N. Marinova

Rubus idaeus, average weight, vegetative indicators, yield

https://doi.org/10.17660/ActaHortic.2026.1449.24