FRUIT QUALITY AND PRODUCTIVITY EVALUATION OF NINE PLUM CULTIVARS

Nine plum cultivars: ‘Ave’, ‘Duke of Edinburgh’, ‘Emma Leppermann’, ‘Liivi Kollane Munaploom’, ‘Märjamaa’, ‘Perdrigon’, ‘Polli Munaploom’, ‘Queen Victoria’ and ‘Vilnor’ were evaluated for yield, fruit weight and biochemical characteristics during 2001-2005. Results showed that the major proportion of flower buds was damaged in 2003 and 2004 and this resulted in a very low crop of all studied cultivars.
Average of five years, yields ranged from 5.6 kg per tree for cultivar ‘Liivi Kollane Munaploom’ to 17.1 kg per tree for cultivar ‘Märjamaa’. The fruits weight varied from 25 g in cultivar ´Märjamaa´ to 44 g in cultivar ‘Polli Munaploom’. The highest soluble solids content was obtained from cultivar ‘Märjamaa’ (16.7 °Brix). The cultivars ‘Ave’ and ‘Emma Leppermann’ showed a significantly lower content of titratable acids (1.19 and 1.22%, respectively) than the other cultivars.
Total sugar content ranged from 6.4% in ‘Perdrigon’ to 8.8% in ‘Märjamaa’. The ascorbic acid content among cultivars varied from 7 to 11 mg per 100 g of fresh weight.
The fruits of cultivars ‘Vilnor’, ‘Liivi Kollane Munaploom’ and ‘Queen Victoria’ showed relatively high content of ascorbic acid. ‘Ave’ had the highest sugar/acids ratio (6.7).

IX International Symposium on Plum and Prune Genetics, Breeding and Pomology

H. Jänes, K. Kelt, K. Kahu, L. Klaas, A. Kikas, P. Ardel

Prunus domestica, yield, fruit weight, soluble solids, titratable acids, sugars, ascorbic acid

https://doi.org/10.17660/ActaHortic.2010.874.51