Effects of Short-Term Treatment of Air Humidity on Growth and Transpiration Characteristics of Cucumber Seedlings, and on Growth of Their Cuttings
Effects of Short-Term Treatment of Air Humidity on Growth and Transpiration Characteristics of Cucumber Seedlings, and on Growth of Their Cuttings
复制标题
短期空气湿度处理对黄瓜幼苗生长蒸腾特性及插条生长的影响
DOI：
10.2525/ecb1963.41.347
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Kiyota
中科院分区：
文献类型：
--
作者：
T. Shibuya;Ryoko Terakura;M. Kiyota
黄瓜(Cucumis sativus L.)苗木在高(85-90%)或低(12-25%)相对湿度(RH)条件下生长6d。气温29~31Ž。然后将每个处理的幼苗转移到高相对湿度或低相对湿度条件下1d。在相对湿度为40-50%、气温为28·Ž的条件下，测定幼苗的蒸腾速率和叶片电导率。从高相对湿度过渡到低相对湿度的苗木，其蒸腾速率和叶片电导率较低，插条栽植后的生长量高于保持在高相对湿度下7d的苗木。从低相对湿度过渡到高相对湿度的苗木，其蒸腾速率和叶片电导率较高，且插条栽植后的生长量小于保持在低相对湿度下7d的苗木。
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•Ž. 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•Ž. 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.