2014 Fiscal Year Final Research Report
The extension of the growth period and enlargement of fruit induced by low temperature at the late phase of fruit growth in parthenocarpic tomato cultivars.
| Project/Area Number |
24580041
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | Ehime University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | トマト / 果実発育 / 低温 / 糖濃度 / ペルオキシダーゼ |
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| Outline of Final Research Achievements |
It has been suggested that the extension of the growth period and enlargement of fruit induced by low temperature at the late phase of fruit growth is common in tomatoes, because it has been observed not only in parthenocarpic cultivars, as expected at the start, but also in other cultivars, such as ‘Micro Tom’ and ‘Frutica’. At low temperature condition, the influx of photoassimilate was continued, although the fruit growth became slower, and the final fruit at ripening became larger because of the extension of the growth period. Furthermore, the sucrose content was increased remarkably, and the organic acid was reduced in low temperature treatment. This could be useful to improve the fruit quality.
Invertase and peroxidase were examined as the enzymes that participate in this phenomenon, but I could not find the clear evidence of this.
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| Free Research Field |
蔬菜花卉園芸学
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