plant chlorophyll meter, leaf sensor

What they write about our products


Using handhels chlorophyll meters to monitor leaf senescence

 atLEAF vs Minolta SPAD-502

...the Minolta SPAD-502 costs about $2600.00. In contrast, the atLEAF is a relatively new chlorophyll meter which can be purchased for one tenth of the cost... We found that the relative chlorophyll reading from SPD-502 and atLEAF meters were highly correlated both to one another and to chlorophyll content determined with spectrophotometry.

A.Gallinat, L. Garrison, R. Primack
Professor richard Primack's Lab at Boston University

In-field plant monitoring as a tool for n management in small grains

protein content of grain

The average AtLeaf chlorophyll index reading of the penultimate leaves was closely correlated to the tissue N concentration of those leaves and served as a good predictor of the eventual protein content of the grain.

M. Lundy, S. Wright, Farm Advisor, S. Orloff, UC Cooperative Extension; R. Hutmacher , UC Cooperative Extension Specialist, UC Davis Plant Sci. Dept. and Director, UC West Side REC;

Comparing SPAD and atLEAF values for chlorophyll assessment in crop species

spad vs atleaf

SPAD and atLEAF values were strongly correlated and not affected by the different measurement conditions. The atLEAF Chl meter can therefore be used as an inexpensive alternative to the SPAD-502 meter, although the latter was found to be easier to handle.

Juanjuan Zhu1, Nicolas Tremblay2, and Yinli Liang1,3
1College of Life Sciences, Northwest AF Univ., China; 2Horticulture Research and Development Centre, Agriculture and Agri-Food Quebec, Canada; and 3Institute of Soil Water and Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, P.R. China.