Oncidiumにおける黄緑色葉株での高温障害の軽減

DOI 日本農学文献記事索引 Web Site 参考文献17件

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タイトル別名
  • Mitigation of High Temperature Injury in Oncidium Plants with Pale Green Leaves
  • ０ｎｃｉｄｉｕｍにおける黄緑色葉株での高温障害の軽減
  • Oncidium ニ オケル オウリョクショク ヨウカブ デ ノ コウオン ショウガイ ノ ケイゲン

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抄録

Symptom of high temperature injury of pale green and dark green leaves of Oncidium under the same sunlight condition was investigated. Although the flavonoid content in pale green leaves was larger than dark green leaves, carotenoid content, superoxide dismutase, ascorbate peroxidase, catalase activities and hydrogen peroxide content were smaller. However, by exposure to high temperatures (42°C maximum air temperature) for 4 days, 31% area of pale green leaves was sunburned, whereas dark green leaves were completely burned. Thus, the high temperature injury in pale green leaves was comparatively mitigated compared with that of dark green leaves in Oncidium plants.

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