Short-term application of the concentrated deep seawater for production of high quality tomatoes by single-truss and high density cultivation

Takuya Araki, Shin Ichi Watanabe, Takahiro Wajima, Kitano Masaharu, Yuka Nakano, Kunio Okano

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Single-truss and high density cultivation of tomato plants (Lycopersicon escultcntum Mill.) has great advantages in controlling the plants and stable production. In this cultivation, an effective application of short-term salt stress for high quality tomatoes was examined by analyzing mass transport to fruits via phloem. Tomato plant were grown by soil-less culture with nonwoven fabric system for single-truss and high density cultivation, where short-term salt stress was induced for just 2 weeks at the stage of rapid fruit growth by adding the concentrated deep seawater to the standard nutrient solution (electric conductivity (EC), 1.2 dS m-1) to increase EC by 13.5 dS m-1 Although fresh weight of the fruits was restricted by salt stress, dry matter ratio of the fruits was increased, Soluble solid concentration and flux in the phloem sap was accelerated not only during the short-term, salt stress but also after the removal. Concentrations of Na +, K+, and Mg+ in the phloem, sap were also enhanced by the concentrated deep seawater. Consequently, sugar concentration of the fruits was significantly increased by short-term salt stress. These results may contribute to stable and high production of high quality tomatoes in single-truss and high density cultivation.

Original languageEnglish
Pages (from-to)37-46
Number of pages10
JournalEnvironmental Control in Biology
Volume47
Issue number1
DOIs
Publication statusPublished - Jan 1 2009

Fingerprint

salt stress
seawater
tomatoes
fruits
phloem
sap
electrical conductivity
nonwoven fabrics
soilless culture
Solanum
total soluble solids
mass transfer
nutrient solutions
sugars

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Plant Science

Cite this

Short-term application of the concentrated deep seawater for production of high quality tomatoes by single-truss and high density cultivation. / Araki, Takuya; Watanabe, Shin Ichi; Wajima, Takahiro; Masaharu, Kitano; Nakano, Yuka; Okano, Kunio.

In: Environmental Control in Biology, Vol. 47, No. 1, 01.01.2009, p. 37-46.

Research output: Contribution to journalArticle

Araki, Takuya ; Watanabe, Shin Ichi ; Wajima, Takahiro ; Masaharu, Kitano ; Nakano, Yuka ; Okano, Kunio. / Short-term application of the concentrated deep seawater for production of high quality tomatoes by single-truss and high density cultivation. In: Environmental Control in Biology. 2009 ; Vol. 47, No. 1. pp. 37-46.
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