湛水処理がサトイモの光合成に及ぼす影響

日本作物学会紀事

岩井 純夫²  吉田 理一郎³  山本 雅史²  池澤 和広¹  遠城 道雄² 

[1] 鹿児島県農業開発総合センター;鹿児島大学大学院連合農学研究科;鹿児島大学農学部

关键词: Eddo;    サトイモ;    Flooding;    湛水;    Photosynthetic rate;    光合成速度;    Stomata;    æ°—å­”;    Stomatal conductance;    気孔コンダクタンス;    Transpiration;    蒸散;   

DOI  :  10.1626/jcs.84.150

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The yield of ‘Daikichi’, eddo cultivar (Colocasia esculenta Schott (L). var. antiquorum Hubbard & Rehder) cultivar generally grown in upland fields is increased by pot culture under flooded conditions. Here, we studied the effect of flooding on the photosynthesis in eddo under upland field conditions and flooded conditions in which flooding treatment started when two to three leaves emerged. In comparison with upland field conditions, stomatal conductance, transpiration rate, amount of chlorophyll and photosynthetic rate were increased with the plant growth under flooded conditions. The increase in transpiration under flooded conditions prevented the rise of daytime leaf temperature thus preventing the decrease in photosynthetic rate that occurs under high temperature conditions.

【 授权许可】

Unknown