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자료유형
학술저널
저자정보
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한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.50 No.6
발행연도
2009.12
수록면
502 - 508 (7page)

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Dormancy breaking and flowering of Adonis amurensis were controlled by the forcing date and cold storage in the central region of Korea, Suwon. Bud break and flowering did not occur throughout the experiment when dormant rootstocks were transferred to a greenhouse on October 22, 2002, in which natural accumulative chilling (NAC) was 0 h. Days to bud break and flowering from transferring date were shortened as transferring date was delayed. Bud break and flowering percentage, plant height, and number of leaves per plant at flowering were increased with delayed transferring date. Approximately ≥ 92% of plants flowered normally with shoot growth when transferred after December 20 (= 1,200 h NAC). Prolonged cold storage also promoted bud break and flowering of dormant A. amurensis. Approximately 90% of rootstocks began to sprout within 10 days with normal flowering and subsequent growth after flowering when stored for at least 6 weeks (= 1,008 h AC) irrespective of temperature. This result was comparable with those transferred from an open field to greenhouse on December 20 (= 1,200 h NAC). Twelve weeks of cold storage, except 0℃, induced the bud elongation and sprouting during cold storage, resulting in overgrowth and weak plants. As a result, at least 1,200 h NAC or 6 weeks of cold storage (= 1,008 h AC) below 10℃ could be recommended as forcing methods for dormancy breaking, normal flowering, and subsequent growth of dormant A. amurensis in the central region of Korea. However, since constant cold storage was more effective than fluctuating chilling temperature in the natural environment, 6 weeks of cold storage is recommended for forcing method of A. amurensis and 0℃ as the storage temperature for longer duration than 12 weeks in order to prevent shoot growth during cold storage.

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Abstract
Introduction
Materials and Methods
Results
Discussion
Acknowledgement
Literature Cited

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