Methods for Measuring Plant Water Potential

3.2.4 Miscellaneous Methods for Measuring Matric or Water Potential

A variety of techniques to measure matric potential or water potential in the laboratory and in the field are described in this section. The techniques described herein require equilibration of some medium whose matric or water potential can be determined from previous calibration or can be measured directly. Under equilibrium conditions the matric or water potential of the medium is equal to t...

islanding detection methods for microgrids

امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...

Evaluation of Rapid Microbiological Methods for Measuring Recreational Water Quality Evaluation of Rapid Microbiological Methods for Measuring Recreational Water Quality

A Critical Evaluation of Tissue-Immersion Methods for Measurement of Plant Water Potential

Plant water potential was measured simultaneously by the change-in-length method and the Schardakow-dye method on segments of potato tubers. In over half of the tests, the change-in-length method underestimated the true water potential, interpreted to be the result of several sources of error inherent in the method. Therefore, the dye method is strongly recommended as the only tissue-immersion ...

Methods for measuring plant vulnerability to cavitation: a critical review.

Xylem cavitation resistance has profound implications for plant physiology and ecology. This process is characterized by a 'vulnerability curve' (VC) showing the variation of the percentage of cavitation as a function of xylem pressure potential. The shape of this VC varies from 'sigmoidal' to 'exponential'. This review provides a panorama of the techniques that have been used to generate such ...