2009 Fiscal Year Final Research Report
Elucidation of regulation mechanism and ecological roles of rhizome enlargement in lotus with regard to phytochrome
| Project/Area Number |
19580036
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | Kyushu University |
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Principal Investigator |
OZAKI Yukio Kyushu University, 大学院・農学研究院, 准教授 (60253514)
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| Co-Investigator(Kenkyū-buntansha) |
OKUBO Hiroshi 九州大学, 大学院・農学研究院, 教授 (80150506)
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| Research Collaborator |
MASUDA Jun-ichiro 九州大学, 熱帯農学研究センター, 講師(研究機関研究員) (60452744)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 野菜 |
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| Research Abstract |
Rhizome enlargement occurred in the lotus plants that received the signal of short daylength with one or some of the leaves. Covering with low (red light / far red light) ratio films accelerated rhizome enlargement of the plants even in the long daylength. It was demonstrated that rhizome enlargement started two weeks after short daylength treatments, and it was suggested that gibberellins regulated the rhizome growth (elongation or enlargement). Enlarged rhizomes had dormancy and the dormancy could break by the low temperature treatments.
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