ピーマンの結実肥大に及ぼす蛍光灯連続光と暗期中断の影響

• 桝田 正治

  岡山大学農学部

• 荻野 知子

  岡山大学農学部

• 村上 賢治

  岡山大学農学部

• 吉田 裕一

  岡山大学農学部

• 向阪 信一

  松下電工株式会社・照明分社・照明戦略企画室

書誌事項

タイトル別名

• Fruit Set and the Development of Peppers as Affected by a Daily Dark Break of Continuous Fluorescent Illumination.
• ピーマン ノ ケツジツ ヒダイ ニ オヨボス ケイコウトウ レンゾク コウ ト アンキ チュウダン ノ エイキョウ

抄録

The objective of this experiment was to clarify the effect of a daily 4 h-dark break of continuous light to decrease the input-energy in pepper fruit production, cv. Kyo-midori. Plants were grown in a closed environment for 10 months in half-strength “Otsuka-A” nutrient solution (ECl. 4dS m^-1), in which the additional solution pH was adjusted to pH5.6, with a range of continuous light intensity between 150 and 350μmol m^-2s^-1, 800ppm CO₂-enrichment, a constant temperature of 27°C and ambient humidity. The continuous light treatment was continued for 2 months from the beginning of first flowering (1st period), and the subsequent treatment of a daily 4h-dark break was carried out for 2 months (2nd period), and alternative treatments of continuous light and a daily 4 h-dark break were continued.<BR>Green pepper fruit was harvested at marketable size about 20 days after flowering. At the end of each 2 month period, the remaining solution was renewed, and all the fruit on the plant was removed.<BR>The number of harvested fruits over 2 months increased with plant growth. The cumulative pattern of harvested fruit in the daily 4h-dark treatments (2nd and 4th periods) did not differ from that obtained before and after the continuous light treatment (1st, 3rd and 5th periods). The electrical conductivity (EC) of the remaining solution fluctuated in the range of 1.2 and 3.5 dS m^-1, and pH in the range of 6.0 to 7.8. The plants grew vigorously without any symptoms of physiological disorder.<BR>When compared to greenhouse peppers harvested in late spring, those under artificial light had 2 times higher chlorophyll and carotinoid content in the fruit skin. No difference was found between continuous light and the dark break.<BR>From these results, a daily 4 h-dark break produce no problems in fruit yield and quality, and it contributes in reducing input-energy in pepper fruit production.

収録刊行物

• 植物工場学会誌

  植物工場学会誌 14 (3), 147-151, 2002

  日本生物環境工学会

キーワード

• pepper fruit production
• dark break of continuous illumination
• chlorophyll
• carotinoid

詳細情報

• CRID: 1390001204380712704
• NII論文ID: 10012339294
• NII書誌ID: AN10451761
• DOI: 10.2525/jshita.14.147
• ISSN: 18803555
• ISSN: 09186638
• ISSN: http://id.crossref.org/issn/09186638
• NDL書誌ID: 6284551
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6284551
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可