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PPM - Plant Photosynthesis Meter

Photosynthesis meter

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The EARS Plant Photosynthesis Meter (PPM) measures the photo-synthetic light use of plants. Because of its low weight, the instrument is very suitable for use in laboratory and field. Just press the button and the measurement is completed within a second. In addition long measuring series can be done automatically. For this reason the PPM has a wide range of applications in research, education and practice.

The company

EARS Plant Photosynthesis Monitoring Ltd has carried out research into the application of chlorophyll fluorescence since 1983. The first hand held photosynthesis meter was launched in 1992. Since then we have continued research and development in this field, with a focus on measuring technique and practical application. Therefore do not expect a long list of fluorescence parameters on this site. We do not refer to them if they are purely theoretical and have no practical meaning.


Earth Observation

EARS Earth Environment Monitoring site


 


Download the publication!

We have written a publication for students and professionals with a detailed explanation on the measurement of fluorescence, photosynthesis and production.   Download this publication here. 


Applications

The PPM has many applications, for example:

  • Measuring herbicide efficacy
  • Measuring herbicide damage to crops and nature
  • Testing of new herbicides
  • Optimizing light climate in green-house horticulture 
  • Characterizing light climate and productivity of species and varietes 
  • Testing and selection of seed-lings for breeding
  • Assessment of vigor of geneti-cally modified plants 
  • Assessment of the quality of pot plants, cut flowers and fruit 
  • Measuring the photosynthesis component in the energy balance of the earth surface

With the PPM practical results may be obtained, for example:

  • Substantial reduction of herbicide use (50% and more)

  • Increased crop yields as a result of lower herbicide use 

  • Prevention of burning of pot plants 

  • Time savings in the execution of laboratory tests and field trials