Yield components and fruit quality of floricane fruiting raspberry cultivars grown in Serbia
2011
Milivojević, J., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Nikolić, M., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Radivojević, D., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Poledica, M., Faculty of Agriculture, Belgrade - Zemun (Serbia)
Six floricane fruiting raspberry cultivars (Willamette, Meeker, Malahat, Tulameen, Chilliwack and Glen Ample) grown at the Experimental station Radmilovac, a collective raspberry orchard of the Faculty of Agriculture, Belgrade University were harvested in the period of 2008-2009. All cultivars were evaluated for their standard parameters of productivity (number of fruiting laterals and inflorescence per cane, number of fruits per cane, and both yield per cane and per meter or hedgerow) and fruit quality (fruit weight, index of fruit shape, number of drupelets per fruit), and also of nutritional value (soluble solids content, sugar content, titratable acidity and vitamin C content). In the study, the earliest ripening time was observed in cv. Malahat (5th June), whereas cv. Glen Ample was the latest (15th June), Harvest duration was relatively long and ranged from 27 days (Meeker) to 32 days (Tulameen and Glen Ample). Cv. Chilliwack expressed significantly higher values of all yield components, including the highest yields per cane and meter of hedgerow (1202.7 g and 7.2 kg, respectively). Yields of cv. Wilamette (467.3 g/cane and 2.8 kg/m of hedgerow) were significantly lower than those obtained by cvs. Malahat and Chilliwack, which are recognized for high yeild and large fruit size. In this study, the mean fruit size of cv. Glen Ample was significantly higher (4.74 g) than those of the other cultivars tested. Cvs. Willamette and Chilliwack exhibited the highest content of soluble solids (11.7%). Very high content of vitamin C was also found in cv. Chilliwack (52.3 mg/100g). Titratable acidity differed greatly among the cultivars achieving the highest value in cv. Willamette (1.79%), which is also characterized by the lowest levels of total and inverted sugars.
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