Physiological Roles of Silicon in Photosynthesis and Dry Matter Production in Rice Plants I. Effects of silicon and shading treatments

Sakae Agarie, Waichi Agata, Fumitake Kubota, Peter B. Kaufman

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

To investigate the combined effects of silicon application and light intensity on growth characteristics, drymatter production, photosynthetic rate, and transpiration rate, three cultivars (cv. Nipponbare, Koshihikari, Suweon 258) were water cultured, using solutions of + Si (silicon application) and –Si (no-application) under two different light conditions (no shade and shade). Silicon application promoted growth and dry matter production in the three cultivars. The greatest effect was found in a japonica-type cultivar, Koshihikari, grown under the shade condition. Siliconapplication prevented overtranspiration and increased water use efficiency in leaves. This was effective in curbing photosynthetic depression and chlorophyll destruction in aged leaves. The maintenance of photosynthetic activity was regarded as one of the main reasons for the dry matter production increase by silicon application.

Original languageEnglish
Pages (from-to)200-206
Number of pages7
JournalJapanese Journal of Crop Science
Volume61
Issue number2
DOIs
Publication statusPublished - Jan 1 1992

All Science Journal Classification (ASJC) codes

  • Food Science
  • Agronomy and Crop Science
  • Genetics

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