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THE YIELD AND NUTRITIVE VALUE OF SELECTED CARROT CULTIVARS WITH ORANGE - AND PURPLE - COLORED STORAGE ROOTS

2010; University of Life Sciences in Lublin; Volume: 9; Issue: 4 Linguagem: Inglês

2545-1405

Joanna Majkowska-Gadomska, B. Wierzbicka,

Plant Physiology and Cultivation Studies

The aim of an experiment conducted in 2006-2008 was to determine the effect of soil fertilization with Crop Care on the yield and chemical composition of carrot culti- vars with orange- and purple-colored storage roots. The yield and chemical composition of three carrot cultivars: 'Florida F1 ' with orange-colored roots, 'Deep Purple F1' with purple-colored roots and 'Purple Haze F1' with roots that have a purple cortex and an or- ange core were compared in this study. Plants were grown in control soil with sufficient quantities of nutrients to support the development of carrot roots as well as in soil addi- tionally fertilized with Crop Care. The results of the study showed that carrots of cv. 'Florida F1 ' produced a much higher total yield and marketable yield than carrots of cv. 'Deep Purple F1 ' and 'Purple Haze F1'. Additional fertilization significantly increased the marketable yield of the carrots. The edible parts of purple root cultivars were character- ized by a higher content of dry matter, L-ascorbic acid and total carbohydrates. The appli- cation of the Crop Care fertilizer significantly increased the dry matter content of carrots. Roots of cv. 'Deep Purple F1 ' contained the highest levels of N, K and Mg, while cv. Flor- ida F1 was most abundant in Ca and Na.