| Project/Area Number |
02660031
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
園芸・造園学
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| Research Institution | Shimane University |
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Principal Investigator |
HOSOKI Takashi Shimane Univ., Fac. of Agriculture, 農学部, 教授 (90101245)
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| Co-Investigator(Kenkyū-buntansha) |
INABA Kunio Shimane Univ., Fac. of Agriculture, 農学部, 教授 (30032585)
浜田 守彦 島根大学, 農学部, 助手 (70218543)
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| Project Period (FY) |
1990 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1991: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1990: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | Breaking dormancy / Promotion of flowering / methyl disulfide / Allyl isothiocyanate / Allyl disulfide / Ornamental trees / Perennials / Bulbs / メチルジスルフィド / 硫化水素 / 揮発性イオウ化合物 / ニンニク |
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| Research Abstract |
An optimum concentration of methyl disulfide, allyl disufide and allyl isothiocyanate for breaking dormancy was studied. In result, 1% was optimum. Optimum treatment temperature was 20ﾟC and the duration was '2-6 hours. By this method, breaking dormancy was accelerated to 20-40% erlier than untreated control. Methyl disulfide did not induce phytotoxicity and flowering time was accelerated. In gladiolus in which flowering of secondary flower stems is difficult bv December in forcing, methyl disulfide promoted the flowering. Thus, total numbers of cut flowers amounted to sixfold compared to that of untreated control. Probably, storage food in the corms was quickly translocated by the methy disulfide treatment. This chemical promoted flowering of cherry and tree peony, folloewd by acceleration of sprouting. Methyl disulfide treatment enhanced respiration as found in ethylene treatment. Also, promotors in the corms increased and inhibitors decreased by the treatment. This phenomenon closely related to promotion of sprouting and flowering. Thus, dimethyl sulfide treatment seems effective on bud sprouting and resulted in Promotion of flowering in time of December shipping of cut flowers.
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