Respiration, sap flux, water balance and expansive growth in tomato fruit

T. Araki, Kitano Masaharu, H. Eguchi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Diurnal changes in respiration, pedicel sap flux, water balance and expansive growth in a fruit of tomato plant (Lycopersicon esculentum Mill.) were analyzed in an artificial light growth chamber, where the fruit at the stage of rapid sugar accumulation was used. The higher respiration of the intact berry was clearly found under the light where the sap flux and the growth rate were kept higher, but darkening, removal of the calyx and excision of the pedicel brought the lower berry respiration with significant depression in the sap flux and the growth rate. Transpirational water loss from each of the berry and the calyx was only 10% and 20% of the imported sap flux, and the residual 70% of the imported sap flux contributed to expansive growth of the berry. From these results, it is conceivable that respiration of the tomato fruit at the stage of rapid sugar accumulation closely relates to the phloem sap flux which is responsible for sugar accumulation and expansive growth of the fruit.

Original languageEnglish
Pages (from-to)95-102
Number of pages8
JournalBiotronics
Volume26
Publication statusPublished - 1997

Fingerprint

Lycopersicon esculentum
water balance
sap
water budget
Fruit
Respiration
respiration
fruit
tomatoes
sugar
fruits
small fruits
Water
Growth
pedicel
calyx
sugars
phloem
Phloem
growth chambers

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)
  • Plant Science
  • Environmental Science(all)

Cite this

Respiration, sap flux, water balance and expansive growth in tomato fruit. / Araki, T.; Masaharu, Kitano; Eguchi, H.

In: Biotronics, Vol. 26, 1997, p. 95-102.

Research output: Contribution to journalArticle

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