短期間の湿度処理がキュウリ実生の成長, 蒸散特性および挿し木後の成長に及ぼす影響
2003 年 41 巻 4 号 p. 347-352
詳細
2003 年 41 巻 4 号 p. 347-352
Cucumber (Cucumis sativus L.) seedlings were grown at high (85-90%) or low (12-25%) relative humidity (RH) for 6 days. Air temperature was 29-31°C. Seedlings of each regime were then transferred for 1 day to high or low RH condition. Transpiration rates and leaf conductance of the seedlings were then measured at RH of 40-50% and air temperature of 28°C. In seedlings transferred from high to low RH, transpiration rates and leaf conductance were lower ; also, growth of their cuttings after planting was higher compared to the seedlings kept at high RH for 7 days. In seedlings transferred from low to high RH, transpiration rates and leaf conductance were higher ; also, growth of their cuttings after planting was smaller compared to the seedlings kept at low RH for 7 days.
