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Abstract ▼ AI-Helper

The number of varieties induced by mutation breeding in ornamentals based on FAO-IAEA mutant varieties DB was 566. Almost all the varieties were mutated by radiation technology. Varieties in Europe and Asia were much more than those of the other continents. The Netherlands is leading country in reg...

The number of varieties induced by mutation breeding in ornamentals based on FAO-IAEA mutant varieties DB was 566. Almost all the varieties were mutated by radiation technology. Varieties in Europe and Asia were much more than those of the other continents. The Netherlands is leading country in registration of kinds of species and number of varieties, followed by India, Germany, and China. Chrysanthemum is the most of the enrolled species in all the countries. Rosa and Dahlia ranked 2nd, 3rd respectively. Chrysanthemum was developed by using not only γ-rays and ion beams of C, Ne etc. as mutagen but also various plant tissues as explant. Its flower color spectrum was broad. The main character is flower color and its percentage is 77%. The rest of characters are flower and leaf morphology, leaf color, dwarfness and so on. X-rays and γ-rays as mutagen were the main trend in mutation breeding. In Korea, the varieties of Hibiscus syriacus as 'Baekseol', 'Seonnyo', and 'Daegoang' have been enlisted for the right of variety protection.