ISHS Acta Horticulturae 459: International Symposium Brassica 97, Xth Crucifer Genetics Workshop
QUALITY DIFFERENCES BETWEEN RADISH (RAPHANUS SATIVUS L.) CULTIVARS DETERMINE THE POSSIBILITIES OF THEIR USE |
| Authors: | E. Capecka, A. Libik |
| Keywords: | radish, cultivars, plant shooting, storage root firmness, organic compounds, minerals |
| Abstract:
In a four-year field experiment six radish cultivars were tested: ‘Rex’, ‘Ostergruss Rózowa’ of early type; ‘Tokinashi’, ‘Minowase Summer Cross F1’ of Japanese daikon type; ‘Monachijska Bia3a’, ‘Murzynka’ of winter type. Yield, tendency to shooting, and pithiness were assessed. The content of dry weight, soluble sugar, thiocyanate, ascorbic acid, crude fibre, protein, macro- and micro-elements was determined. Considerable differences between cultivars were found. The early ones showed a marked resistance to shooting which promoted their cropping continuously from spring till autumn. The low tendency to pithiness of daikon allowed to adopt its harvest time to market demands. The levels of most chemical compounds were comprised within the range limited by early radish (the lowest contents) and cv. ‘Murzynka’ (the highest ones). The small amount of thiocyanate in storage roots of early and Japanese cultivars was reflected in their milder taste in comparison with winter radish. The latter however presented a good produce for medicinal purposes. The higher concentration of the majority of organic compounds and macroelements in storage roots of winter cultivars decided of their suitability to a long-term storage. The considerable thiocyanate content in the leaves of all tested cultivars suggested that their use for processing should be considered. | |
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