High Temperature Infrared Pyrometer High Temperature Infrared Pyrometer,High Temperature Pyrometer,Touchless Temperature Sensor,Thermometer For High Temperatures Changzhou Sijie Optoelectronics Technology Co.,Ltd. , https://www.sjinfrared.com
According to weather changes every month to determine the l~Zd, generally choose the month of sunny or less cloud weather. The daily measurement starts from 6.sh or 7h in the morning, and ends in the afternoon at 7h, takes the sprigs on the sunny side of the leaves, and uses the 3005 plant water potential in the United States. The measuring instrument is closed by the pressure chamber method, measured once every 1h, 2 repetitions of 3 measurements each time.
The daily change of the water potential measured by the plant water potential meter reflects the dynamics of the water potential. Due to the influence of climate and environmental conditions as well as the regulation of the plant itself, the results of monthly measurements have some fluctuations. However, the daily variation of the water potential is very obvious. As a unimodal curve, the daily changes of the water potential and ecological factors of the Koshihikari twig under different weather conditions are illustrated on July 1 (sunny days) and October 29 (cloudy days), respectively.
The results of the plant water potential analyzer showed that on sunny days, the water potential of the plant has a distinct daily course, from the maximum before dawn to the minimum in the afternoon, to the normal value in the evening and at night, which is related to transpiration. The daily course of action is echoed, and the transpiration effect is the smallest in the morning to the maximum at noon. The diurnal variation of the lateral water potential and the daily change of transpiration are known. It is known that the change of water potential is closely related to the effect of the dormant, and the stronger the transpiration is, The more water lost, the more serious water deficit the plant will be, and the lower the water potential will be. Otherwise, the opposite will happen. According to the daily change of water potential, it shows that under normal weather conditions, the morning water stress is lighter. Heavy in the afternoon. Therefore, it is generally appropriate to use the water potential as the basic measure of plant water status.
Transpiration can be seen as a process that dominates the water relationship of plants. The single most useful measure of water stress is water potential. Through the determination of the dynamics of Kandelia water potential and related ecological factors, the relationship between the changes of water potential and plants and ecological factors was explored. The main factors affecting the water potential of mangrove plants were analyzed, which not only helped determine the mangrove plant theoretically. Adaptation to water stress, and provide theoretical basis for the cultivation and introduction of domestication of mangrove plants. Determination of plant water potential can be measured and analyzed using plant water potential analyzer. The application of this instrument has become more and more extensive in recent years.