Water and carbon balance in developing fruit of the satsuma mandarin (Citrus unshu Marc.)

Taku Yano, Tatsuo Kawano, Makoto Ohara, Yuichi Sato, Ryohei Kotegawa, Hiroki Kagawa, Shuji Setoyama, Naoya Yokota, Ryosuke Nomiyama, Takuya Araki, Eriko Yasunaga, Toshihiko Eguchi, Kitano Masaharu

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In order to improve temperature and water management in the greenhouse cultivation of Satsuma mandarins, short-term water and carbon balance in intact Satsuma mandarin fruits was studied by measuring fruit expansive growth, CO 2 and H 2O gas exchange, sap flux into the fruit through the phloem and xylem, and 13C partitioning. Seventy-one days after full bloom, with day/night temperature set at 28°C/23°C and under fine weather conditions, sap flux through the xylem into the fruit showed a dynamic diurnal change which was related to changes of fruit volume. In leaves, 13C partitioning decreased from 11:00 until 23:00, remaining constant thereafter, whereas in fruits, 13C partitioning increased from 11:00 until 23:00, and then remained contrast. Investigating the cumulative water balance, 19% of water output was lost by fruit transpiration, whereas 81% contributed to fruit growth. In cumulative carbon balance, 39% of carbon output was lost by fruit respiration, whereas 61% contributed to fruit growth. Quantitative analyses of physiological responses to environmental conditions, as measured in this study, are essential for establishing energy-saving temperature management strategies.

Original languageEnglish
Pages (from-to)189-198
Number of pages10
JournalEnvironmental Control in Biology
Volume50
Issue number2
DOIs
Publication statusPublished - Sep 25 2012

Fingerprint

satsumas
Citrus
fruits
carbon
water
sap
xylem
night temperature
cell respiration
water management
water balance
phloem
gas exchange
plant response
transpiration
temperature
weather

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Plant Science

Cite this

Water and carbon balance in developing fruit of the satsuma mandarin (Citrus unshu Marc.). / Yano, Taku; Kawano, Tatsuo; Ohara, Makoto; Sato, Yuichi; Kotegawa, Ryohei; Kagawa, Hiroki; Setoyama, Shuji; Yokota, Naoya; Nomiyama, Ryosuke; Araki, Takuya; Yasunaga, Eriko; Eguchi, Toshihiko; Masaharu, Kitano.

In: Environmental Control in Biology, Vol. 50, No. 2, 25.09.2012, p. 189-198.

Research output: Contribution to journalArticle

Yano, T, Kawano, T, Ohara, M, Sato, Y, Kotegawa, R, Kagawa, H, Setoyama, S, Yokota, N, Nomiyama, R, Araki, T, Yasunaga, E, Eguchi, T & Masaharu, K 2012, 'Water and carbon balance in developing fruit of the satsuma mandarin (Citrus unshu Marc.)', Environmental Control in Biology, vol. 50, no. 2, pp. 189-198. https://doi.org/10.2525/ecb.50.189
Yano, Taku ; Kawano, Tatsuo ; Ohara, Makoto ; Sato, Yuichi ; Kotegawa, Ryohei ; Kagawa, Hiroki ; Setoyama, Shuji ; Yokota, Naoya ; Nomiyama, Ryosuke ; Araki, Takuya ; Yasunaga, Eriko ; Eguchi, Toshihiko ; Masaharu, Kitano. / Water and carbon balance in developing fruit of the satsuma mandarin (Citrus unshu Marc.). In: Environmental Control in Biology. 2012 ; Vol. 50, No. 2. pp. 189-198.
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