ABSTRACT
To study the effect of high temperature, rice seedlings 20, 30, 40 and 50 d were kept at 5, 10, 15 and 20 cm water depth in a water pool. Meteorological findings indicated that water temperature varied up to 10 cm but became stable below this depth. Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight). However, deep water tended to increase plant length. These parameters, however, excel in shallow water. Older seedlings, with the exception of root dry weight, could not perform well compared to young seedlings in all physiological and morphological aspects. The study revealed that seedlings, particularly young ones, stand well in shallow water and can cope with high temperature.
Subject(s)
Desiccation , Organ Size , Oryza , Cell Biology , Physiology , Plant Components, Aerial , Plant Leaves , Plant Roots , Seedlings , Cell Biology , Temperature , Time Factors , WaterABSTRACT
We invented to clarify the influences of acupuncture on the regional skin electroconductivity on humans. An acupuncture needle in situ for a certain time or electroacupuncture using DC 12 volt, 200μA for 7 sec. was applied on the forearm.<br>Measurements of skin electroconductivity were done on several representative points which were distal or proximal to the acupuncture periodically.<br>A needle in situ and electroacupuncture on LI4 did not change the electroconductvity of the proximal skin area around the elbow level on the same extremity.<br>A needle in situ on LI11 increased electroconductivity of the regional skin on the distal area around Manus dorsalis.<br>Electroacupuncture on LI11 increased electroconductivity of the skin on LI5.<br>A needle in situ on LI7 did not change electroconductivity of the skin on the proximal elbow level, but significantly decreased electroconductivity of the skin on LU9.