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PHENOLOGICAL TRAITS OF GOJI BERRY (LYCIUM BARBARUM L.), GROWTH AND REPRODUCTIVE CHARACTERISTICS OF SOME VARITIES CONDUCTED AS A TREE

Published in Scientific Papers. Series B, Horticulture, Vol. LXV, Issue 1
Written by Hristo DZHUGALOV

The study was conducted in the experimental base of the Department of Fruit Growing at the Agricultural University - Plovdiv in the period 2018-2020. In vitro propagated plants of four varieties: goji berry (BioTree) of the species (Lycium barbarum L.) - JB 1, JB 2, JB 4 and JB 10 were planted at distances of 3 m x 2 m in June 2014. They were fortmed as trees with a stem height of 70-90 cm. The results of the study showed that starting of vegetation for variety JB 2 started about a week earlier than in other varieties. Mass flowering in the varieties occurs in May and damages from late frosts in goji berry are not possible. It takes 30 to 40 days from flowering to fruit ripening. At the end of the seventh vegetation, the growth of the trees has not yet weakened. With the 3 m / 2m planting scheme, the plants have not fully occupied the available space and closer planting distances are possible. From the goji berry varieties studied, the most productive was the JB 1 variety, followed by the JB 2 variety. The aim of the study was to examine the phenological, growth, reproductive and other features associated with the cultivation of goji berry, conducted as a tree under the open field conditions. The data from the study would be useful, when selecting the appropriate variety and plant densities for cultivation as well for using various agro-technological practices such as fertilization, harvesting and storage of fruits.

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