Production of high quality vegetable by applying low temperature stress to roots

K. Hidaka, D. Yasutake, T. Takahashi, M. Kitano, Y. Sago, K. Ishikawa, T. Kawano

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

12 被引用数 (Scopus)

抄録

Low temperature stress to plant body can induce adaptive functions in plant such as osmoregulation and antioxidation, which are expected to result in production of high quality vegetables enriched in sugars and antioxidants, etc. However, there are difficulties in stable control of the stress treatment because of seasonal and daily changes in weather condition. A hydroponic system which can control the root zone temperature was newly developed, and low temperature stress treatment was applied only to roots for production of high quality vegetables. Spinach plants (Spinacia oleracea L.) were grown in the newly developed system, where the root zone temperature was controlled at a normal temperature of 20°C. Two weeks before the harvesting, the low temperature stress treatment with a root zone temperature of 5°C was applied for only one week. By the one week application of low temperature stress to roots, sugars, ascorbic acid and Fe2+ were significantly enriched in leaves. Furthermore, concentrations of NO3- and oxalic axid, which are harmful for human health, were extremely decreased. From these results, it was verified that the one week low temperature stress treatment only to roots is applicable for high quality vegetable production.

本文言語英語
ホスト出版物のタイトルProceedings of the International Symposium on High Technology for Greenhouse System Management, Greensys 2007
出版社International Society for Horticultural Science
ページ1431-1436
ページ数6
ISBN(印刷版)9789066056213
DOI
出版ステータス出版済み - 2008
イベントInternational Symposium on High Technology for Greenhouse System Management Greensys 2007 - Naples, イタリア
継続期間: 10 4 200710 6 2007

出版物シリーズ

名前Acta Horticulturae
801 PART 2
ISSN(印刷版)0567-7572

その他

その他International Symposium on High Technology for Greenhouse System Management Greensys 2007
国/地域イタリア
CityNaples
Period10/4/0710/6/07

All Science Journal Classification (ASJC) codes

  • 園芸学

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