Mutasi imbas terhadap bibit Alpinia purpurata.
1992
Soedjono S.
So far there is no effort of cultivar improvement in this ornamental plant. This experiment was carried out at Pasarminggu from March 1989 until April 1990. Seedling of three different sizes (< 6.6-9 > 9 cm) were induced to form mutation by gamma rays with doses of 10 and 20 GY. After 24 hours they were irradiated again with 100, 200, 300 GY. The experiment was using Split Plot Design where seedling sizes as main plots and Gamma Rays treatments as sub plots with three replications. The result showed that the largest seedling (> 9 cm) had the best response to induced mutation by gamma rays, as indicated by high survival and better growth than the smaller size. Single doses of gamma rays (10+0) and (20+0) GY increased percentage of survival, height of plants, vigour number and size of leaves and earlier first short growing. The mutants were observed on > 9 cm seedling one year after planted as shown by changes in flower colour from red to white and white with red surrounding as results of Alpinia irradiated with gamma rays (10+0) and (20+0) GY.
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