Abstract
Abstract - This study was carried out to establish seed propagation method of Hydrangea petiolaris Siebold & Zucc., one of the specific and protected plant species for the floral region. Seed size ranged 1.36 × 0.84 ㎜, weight of thousand seeds was 2.3 ± 0.02 ㎎. Observation of seed morphology characters showed wrinkled surface and elliptical shape, indicating amber color and fine seeds. Moisture contents of seeds, increased rapidly by water-soaking treatment, recording maximum moisture contents (31.9%) after 48 hours. Percent germination of seeds was higher under the light than dark condition. Seed germination was the best at 25 ℃ under the light condition (78.0%) among temperature and light conditions treated. Percent germination, germination energy and T 50 was greatly improved by soaking in GA 3 solutions for 48 hours. Especially, 100 ∼500 ㎎·L -1 GA 3 treatment resulted in the highest germination rate as 90.0% and above. Key words - GA 3 , Germination energy, Hydrangea species, Seed propagation, T
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