Preliminary assessment of productivity and fruit quality of Lithuanian and Ukrainian cultivars of blackcurrant under the climatic conditions of Olsztyn.

摘要

This work presents the results of research on productivity and morphological traits of Lithuanian and Ukrainian black currant cultivars grown under the climatic conditions of Olsztyn, Poland. One-year-old plants of black currant cultivars 'Alta', 'Sofijewska', 'Jubilejnaja', Kopania', 'Czernecza', 'Czereszniewa', 'Ametyst', 'Wernisaz', 'Dainiai', 'Blizgiai', 'Tauriai', 'Imaliai', 'Titania', 'Viciai', and 'Almin' and 'Titania' were planted on 14 November 2002 in the University of Warmia and Masury Experimental Garden in Olsztyn. In 2004 and 2005, the following were determined, crop yield, the weight of 30 clusters, the number of fruits in the 30 clusters, the weight of 100 fruits, and fruit diameter. Crop yield from the cultivars varied. The largest average yield from one bush in 2004 was obtained from cultivars 'Tauriai' (1.51 kg), 'Almin' (1.45 kg) and 'Viciai' (1.3 kg). In 2005, the highest crop yield was obtained from cultivars 'Ametyst' (3.22 kg), 'Tauriai' (2.75 kg) and 'Sofijewskaja' (2.57 kg). The smallest yield was recorded from the cultivar 'Czereszniewa', i.e. 0.29 kg per bush in 2004 and 1.09 kg per bush in 2005. Cultivar 'Viciai' had the largest mean weight of 100 fruits, i.e. (180.0-210.6 g), whereas the smallest fruits were recorded from 'Dainiai' cultivar (83.6-85.7 g). The clusters with the largest number of fruits were from cultivars 'Jubilejnaja Kopania' and 'Tauriai'.