チェリモヤ, バンレイシ, トゲバンレイシ幼樹の生長と光合成におよぼす光量の影響

• 宇都宮 直樹

  近畿大学農学部

• 樋口 浩和

  京都大学農学部

書誌事項

タイトル別名

• Effects of Irradiance Level on the Growth and Photosynthesis of Cherimoya, Sugar Apple and Soursop Seedlings.

抄録

Seedlings of cherimoya (Annona cherimola Mill.), sugar apple (A. squamosa L.) and soursop (A. muricata L.) were grown at 100, 45, 25, and 5% of full sunlight level to determine the influence of irradiance level on their growth and photosynthesis. For all species the shoot length and dry weight of wholeplant were decreased at 25% sunlight, but there was little difference in them between at 45 and 100% sunlight. Total leaf area tended to increase at 45% sunlight in sugar apple and soursop and to decrease at 25% sunlight in cherimoya and soursop. Leaf area ratio increased with decreasing light intensity in every species, and the degree of increase was the least in cherimoya. With decreasing light intensity, leaves became thinner and the specific leaf weight decreased for all species. Chlorophyll content and photosynthetic rate more decreased at 25% than those at 100 and 45% sunlight in sugar apple and soursop. There were little differences both in the chlorophyll content and photosynthesis among these light intensities in cherimoya. This indicates that cherimoya has higher adaptability to low irradiance than other two species. Under weak light condition the stomatal conductance increased for all species. At 5% sunlight, the plant dry weight was less than about 90% of that of control and photosynthetic rate almost decreased to the light compensation point.

収録刊行物

• 生物環境調節

  生物環境調節 34 (3), 201-207, 1996

  日本生物環境工学会

詳細情報

• CRID: 1390282680058444416
• NII論文ID: 130003879608
• DOI: 10.2525/ecb1963.34.201
• ISSN: 21851018
• ISSN: 05824087
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可