防蛾用黄色LED光がキクの開花反応に及ぼす影響

• 石倉, 聡

• 梶原, 真二

• 福島, 啓吾

• 後藤, 丹十郎

書誌事項

タイトル別名

• Effect of Lighting Using Yellow LEDs Designed for Moth Control on Flowering Response of Chrysanthemum

抄録

In order to develop a single light source which can be used both for moth control and flower inhibition in chrysanthemum, effects of blue (463nm), green (519nm), yellow green (576nm), yellow (597nm) and red light (646nm) LEDs on the flowering and the cut flower characteristics of chrysanthemum were investigated. As irradiance increased, the days to flower budding increased except under blue light. Yellow green and yellow LED had flower inhibiting effect equivalent to red LED. There was no difference in the crown bud number and the occurrence of abnormal flower irrespective of the light quality and irradiance. Next the, effects of night break and continuous lighting treatment by yellow LED on the flowering and cut flower characteristics of the chrysanthemum were investigated. There were significant differences in the cut flower characteristics except for the blade number on the neck in these treatments ; there was no practical problem with night break or continuous lighting. The minimum irradiance strength enough for flower inhibition in the continuous lighting treatment was about 80 mW m−2 that was half in night break treatment. Therefore, it is considered that yellow LED can be used as single light source for both moth control and flower inhibition in chrysanthemum.

キクの防蛾と開花抑制に両用できる単一の光源を開発するために，青（ピーク波長：463nm），緑（519nm），黄緑（576nm），黄（597nm）および赤色（646nm）LED光が開花および切り花形質に及ぼす影響を調査した．青色光を除いて，放射照度が大きいほど発蕾までの日数が大きくなった．黄緑および黄色光は，赤色光とほぼ同等の開花抑制作用を有していた．いずれの光質および放射照度に関わらず，やなぎ葉数や花弁の展開異常の発生に差は見られなかった．次に，黄色LED光による暗期中断と終夜照明による影響を調査した．暗期中断と終夜照明では，やなぎ葉数を除く切り花形質に有意な差が見られたが，実用上の問題はなかった．開花抑制に必要となる放射照度の下限値は，終夜照明では約80mW m-2であり，暗期中断のほぼ半分であった．以上のことから，黄色LED光は，単一の光源としてキクの防蛾と開花抑制に両用することが可能であった．

収録刊行物

• 岡山大学農学部学術報告

  岡山大学農学部学術報告 102 35-41, 2013-02-01

  岡山大学農学部

キーワード

• illuminated culture
• light-emitting diode
• long day treatment
• regulation of flowering
• spectral quality of light

詳細情報

• CRID: 1050565162289243136
• NII論文ID: 120005222609
• ISSN: 21867755
• Web Site: https://ousar.lib.okayama-u.ac.jp/49160
• 本文言語コード: ja
• 資料種別: departmental bulletin paper
• データソース種別:
  • IRDB
  • CiNii Articles