Effect of fruit gas exchange on photosynthate accumulation and fruit growth of strawberries

K. Hidaka, Y. Miyoshi, A. Okamoto, K. Dan, H. Imamura, T. Takayama, D. Yasutake, M. Kitano

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

To clarify the effect of fruit gas exchange on photosynthate accumulation and fruit growth of strawberries (Fragaria × ananassa Duch.), fruit CO2 and H2O fluxes, and changes in fruit volume and sugar accumulation were investigated under limiting and non-limiting conditions of fruit gas exchange. By limiting fruit gas exchange with a combination treatment of calyx removal and vaseline coating, the daily integral values of fruit CO2 and H2O flux decreased to one-half of those in non-treatment. The limitations to fruit gas exchange remarkably inhibited translocation of sugars to fruits, and the concentration of total sugar (glucose + fructose + sucrose) in fruits was decreased below one-half of that in non-treated fruits. As a result, this inhibition of sugar accumulation to fruits under the limitation of fruit gas exchange brought a suspension of fruit growth. This suggests that not only leaf photosynthesis but also fruit gas exchange (respiration, transpiration) affect the sugar accumulation and growth of fruits through a process of photosynthates partitioning from leaves to fruits. It can be expected to achieve a higher strawberry productivity by the environmental control based on physiological responses of leaf photosynthesis and photosynthates translocation with the help of plant instruments.

本文言語英語
ホスト出版物のタイトル8th International Strawberry Symposium
編集者Y. Desjardins
出版社International Society for Horticultural Science
ページ509-515
ページ数7
ISBN(電子版)9789462611528
DOI
出版ステータス出版済み - 4 20 2017

出版物シリーズ

名前Acta Horticulturae
1156
ISSN(印刷版)0567-7572

All Science Journal Classification (ASJC) codes

  • 園芸学

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