SAMPO AND SAMDAL, ELDERBERRY CULTIVARS FOR JUICE CONCENTRATES

In 1989-95 two field experiments with eight Danish and three foreign c ultivars of elderberry, Sambucus nigra, L. were carried out with the o bjective of comparison of yield, umbel weight and the contents of anth ocyanin, soluble solids and titratable acid. To obtain a high economic value per hectare and in order to keep the manual picking costs at a minimum, the fruit yield and umbel weight were used as the most import ant criteria for selection of cultivars with high contents of anthocya nin and soluble solids which are necessary for processing of high qual ity fruit concentrates. Compared to 'Sampo' and 'Samdal' the yield, um bel weight and content of anthocyanin of 'Allesoe', and 'Korsor' were significantly lower, but the content of soluble solids were high in 'K orsor' and low in 'Allesoe'. By growing of 'Sampo' it is possible to o btain a high yield, medium size umbels, high content of anthocyanin an d medium content of soluble solids. With respect to yield and content of anthocyanin the differences between 'Sampo' and 'Samdal' were not s ignificant. Compared to 'Sampo' the cultivar 'Samdal' had a higher umb el weight but a lower content of soluble solids and titratable acids.