Abstract
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.
