Study on germination rate enhancement and seedling raising-method development on Sorbus commixta Hedl

초록

This study was conducted to clarify on germination rate enhancement effect and to develope the growing seeding method on Sorbus commixta He이. The results were follows; The optimum temperature of stratificaion and germination of mountain ash was 5℃ the seed germination rate in wet stratification with sand at 5℃ for 90 days was 22.6% and the highest germination of 78.9% was observed when seed was soaked in BA 200ppm for 20 minute after stratification for 90 days at 5℃ . The highest germination of large chinese hawthorn was 11.1% when seedd was soaked BA 50ppm for 20 minute after stratification 90 days at 5℃. Emergence ratio in box raising seeding and pot seeding showed high, 93 and 95%. Root length and dry root weight in pot seedling for 50 days showed higher than that of dirrect seedling and box raising seedling. Plant height and dry leaf weight in box raising seedling showed higher than that of pot seedling and direct seedling. The growth increment of seedling was high between 40 days and 50 days after seedling. The excellent seedling of mountain ash was produced in pot seedling for 50 days.

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