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Estimation of growth and yielding of four highbush blueberry cultivars (Vaccinium corymbosum L.)

Monika Małodobry, Włodzimierz Lech, Ewa Dziedzic, Jerzy Kowalski

Department of Pomology
Faculty of Horticulture, University of Agriculture in Kraków
29 Listopada 54, 31-425 Kraków, Poland

The growth and cropping of four highbush blueberry cultivars was evaluated in the 1989-1999 period of eleven years. The investigation showed that the southern region of Poland offered favourable conditions for highbush blueberry production. For the period of eleven years the following total yield per one bush was obtained from the investigated cultivars: Bluecrop - 40.6 kg, Heerma - 30.2 kg, Croatan - 24.7 kg, Darrow - 21.7 kg. The bushes reached the full bearing period in the fifth year of planting, high yields being recorded up to the last year of the investigation. The highest yields were obtained in the years of abundant total precipitation (about 700 mm). The weight of fruit varied from 74 g to 253 g, depending on the weather conditions and genetic properties of the cultivar. The highest productivity index (from 43-51 kg m-3 of the bush crown) was determined for the cultivars Bluecrop and Darrow, while the lowest indices were found for Heerma (27.6 kg m-3) and Croatan (23.2 kg m-3).

Małodobry M., Lech W., Dziedzic E., Kowalski J., 2001. Estimation of growth and yielding of four highbush blueberry cultivars (Vaccinium corymbosum L.). Folia Horticulturae 13/1: 73-82.