Effect of Daytime Heating on Fruit Yield, Photosynthesis, Translocation and Distribution of <sup>13</sup>C-photoassimilates of Strawberry ‘Sagahonoka’ during Winter Season
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- Tagawa Ai
- Saga Prefecture Agriculture Research Center Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
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- Ito Yusuke
- Saga Prefecture Agriculture Research Center
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- Ehara Megumi
- Saga Prefecture Agriculture Research Center
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- Araki Takuya
- Graduate School of Agriculture, Ehime University
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- Ozaki Yukio
- Faculty of Agriculture, Kyushu University
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- Shishido Yoshihiro
- NARO Institute of Vegetable and Tea Science
Bibliographic Information
- Other Title
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- 冬季における日中の加温がイチゴ ‘さがほのか’ の収量,光合成および<sup>13</sup>C-光合成産物の転流・分配に及ぼす影響
Abstract
<p>Effects of daytime heating on yield, photosynthesis, translocation and distribution of photosynthetic assimilates of strawberry ‘Sagahonoka’ during the winter season in northern Kyushu were examined. Daytime heating at 18°C resulted in increases of the commercial fruit number and yield from December to February. The days from flowering to ripening of top fruits in the first and second inflorescences were shortened by about 5 days by daytime heating treatment. The photosynthetic rate was higher at 18°C than at 13°C when PPFD was 300 μmol・m–2・s–1 or higher. The translocation rate of 13C-photosynthetic assimilates under low light conditions was significantly higher at 18°C than at 13°C. On the other hand, the distribution patterns of 13C-photosynthetic assimilates were similar at 18°C and 13°C in the daytime. Since daytime heating increased the commercial fruit yield from December to February, it was indicated that daytime heating was effective for high productivity in winter strawberry forcing culture in northern Kyushu. Also, physiological factors promoting an increase in yield involved higher temperatures accelerating photosynthesis and translocation rates.</p>
Journal
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- Horticultural Research (Japan)
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Horticultural Research (Japan) 21 (1), 65-71, 2022
THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE
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Details 詳細情報について
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- CRID
- 1390854717761653888
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- ISSN
- 18803571
- 13472658
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- Crossref
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- Abstract License Flag
- Disallowed