Study on Seed Germination Characters of Pleurospermum aromaticum
This research attempted to understand the Pleurospermum aromaticum seed germination conditions inorder to provide theoretical bases for fully utilize relevant resources in future studies., to study the effect of different treatments such as temperatures, light, pH, soil covering thickness, storing time on seed germination of Pleurospermum aromaticum. The results are as follows: (1) the seed has no dormancy, the best germinating temperature range is 25℃, the germination rate was 79. 50%; (2)the seeds in the light and dark conditions germination rate had no difference; (3) The appropriate pH values range was wide, the seeds could germinated under the pH value in the range of 2 - 10, but a higher germination rate can be achieved in the range of pH 6 - 8; (4)The seed was not suitable for long term storage,. the most suitable storing time is less than 12 months; (5) 300 mg · L -1 gibberellic acid increased the germination rate of the seed to 81. 4%, the germination vigor was 49. 4%.
Pleurospermum aromaticum W. W. Smithtemperaturesseedgermination rategermination vigor