chlorophyll content meter
The CCM series of Leaf Chlorophyll Content Meters are the most widely used meters to measure the chlorophyll content of leaves. The CCM meters, also commonly referred to as SPAD meters, are popular with scientific researchers, students as well as growers to determine the chlorophyll content of leaves. Such measurements are required for water and nutrient stress, nitrogen management, as well as fundamental research on photosynthesis and plant physiology.
Two models are available: the CCM-200 and CCM-300.
The CCM-200 is the traditional, gold standard leaf chlorophyll meter that has been used by researchers and growers for decades. The CCM-200 is ideal for leaves with relatively large and flat laminas.
The CCM-300 is a specialised version of the CCM-200 that is designed for difficult to measure leaves. The CCM-300 should be used on small leaves or modified leaves such as cladodes or spines. The CCM-300 can also be used on stems, petioles and seedlings.
- Leaf water potential pressure chambers
- Stomatal conductance leaf porometer
- Photosynthesis and respiration
- Leaf area index (LAI) meter
CCM-200 Plus Chlorophyll Content Meter
CCM-200 plus Chlorophyll Content Meter is an updated version of the very successful CCM-200 instrument. It is a reliable leaf absorption style meter with over 400 research citations. Designed as an affordable solution, the CCM-200 plus provides an included, programmable, measurement averaging option. Averaging between 2 to 30 samples are possible for nitrogen management. It includes a non-volatile flash memory that can store between 94,000 and 160,000 measurements. Data transfer is by USB port to Excel ® or other comma delineated spread sheets.
- Fast – non-destructive measurement at an affordable price
- Cited by more than 400 published scientific papers
- User selected sample averaging size from 2-30 measurements for nitrogen management applications
- Comma delineated files may be opened directly in Excel ® using a USB port
- An almost unlimited memory included for data logging
- Lightweight, Hand-Held Design Optimized for Field Work
- Displays Chlorophyll Content Index or CCI
CCM-300 Plus Chlorophyll Content Meter
The CCM-300 uses a proven fluorescence ratio technique for chlorophyll content measurement at an affordable price. Readout is directly in chlorophyll content mg/m2, and measurement ratio.
- Reliable results on very small leaves, stems, petioles, and immature plants
- Chlorophyll content can now be measured from germination through maturity on most plants
- High degree of correlation with chemical tests, even at higher chlorophyll content levels.
- Larger measuring range – reliable measurement from 41mg/m2 to 675 mg/m2
- Great for nitrogen management applications because it does a better job with well fertilized plants, used as a reference, in management applications.
- Allows onboard averaging of up to 30 measurements for nitrogen management applications
- USB port – data files open directly into Excel ®
- 2 Gigbytes of memory
quick and easy-to-use
The following video demonstrates that the CCM-200 or CCM-300 chlorophyll meters are quick and simple to use. Within 30 seconds, the meter is turned on, calibrated and ready for measuring. The video demonstrates the following steps:
- Turn on instrument
- Run a measurement
- Start calibration and hold down sensor head
- Overwrite old data file and start a new file
- Place sensor head on leaf and hold down
- A measurement result is displayed on the screen
|Measured Parameters||Optical absorbance in two different wavebands: 653 nm (Chlorophyll) & 931 nm (Near Infra-Red).|
|Measurement Area||9.52 mm diameter circle (0.71 mm2)|
|Resolution||0.1 CCI unit|
|Memory Storage Capacity||8 MB for up to 160,000 data measurements, or 94,000 with added GPS data entries.|
|Data Collection Modes||Single point, user selectable from 1-30 point averaging, and a statistical 10-30 point protocol that asks to replace data points beyond a 2 sigma standard deviation.|
|User Interface||128 x 32 pixel graphic display, beep signals, keys for: setup, measurement protocols, diagnostics, data control and user input of alphanumeric comment lines.|
|I/O||USB 1.1 & RS-232; multi-point file output, single point out on demand, NMEA 0183 compliant for GPS data input.|
|Temperature Drift||Temperature compensated source and detector circuitry for minimum drift over full range.|
|Power Supply||9V Alkaline battery.|
|Dimensions||152(L) x 82(W) x 25(D) mm; 162 g|
example scientific publications
Cisneros-Silva et al. 2017. Light limitation reduces tolerance to leaf damage in Datura stramonium. Evolutionary Ecology Research, 18, 351-362. Weblink.
Kiremit and Arslan. 2016. Effects of irrigation water salinity on drainage water salinity, evapotranspiration and other leek (Allium porrum L.) plant parameters. Weblink.Scientia Horticulturae, 201, 211-217.
Martinez et al 2014. Moderate warming increase PSII performance, antioxidant scavenging systems and biomass production in Stylosanthes capitata Vogel. Environmental and Experimental Botany, 102, 58-67. Weblink.
Rathore & Jasrai. 2013. Evaluating chlorophyll content in selected plants with varying photosynthetic pathways using Opti-Science CCM-200. International Journal of Recent Scientific Research, 4, 119-121. Weblink.
Sun et al. 2014. Sensitivity of two Quinoa (Chenopodium quinoa Willd.) varieties to progressive drought stress. Journal of Agronomy and Crop Science, 200, 12-23. Weblink.