A built-in stable actinic light source, and an FM’ correction option, using a single multiple-phased saturation flash, move the OS5p+ to the head of the class. The instrument provides a color graphic display for all measuring protocols. While it includes the standard dark and light adapted FV/FM, FV/FO, Y(II) or (ΔF/FM’), ETR, PAR, and leaf temperature protocols, it also offers enhanced new solutions in other areas. The combination of a built in stable actinic light source and comprehensive quenching protocols make this system and the OS1p, uniquely capable of reliable field and lab quenching measurements. Quenching protocols include: Kramer lake model, Hendrickson lake model with NPQ, puddle model, and quenching relaxation protocols with qE, qT, and qI. A new Vredenberg OJIP quenching protocols is provided along with an advanced Strasser OJIP plant stress measuring protocol. This latest model also includes a Rapid Light Curve protocol with on board curve fitting. The PAR Clip comes as a standard part of this package.
Designed for highly portable advanced plant stress testing. This instrument offers both light and dark adapted protocols for almost all plant stress measuring needs. It provides a color graphic display of FV/FM, FV/FO, Y(II) or quantum yield of PSII (ΔF/FM’), ETR, PAR, and Leaf temperature along with a graph of the measuring trace. A version is also available that provides Rapid Light Curves with onboard curve fitting software, and quenching protocol with NPQ. The FM’ correction option is also included with the OS1p. PAR clip optional.
A hand-held research grade modulated chlorophyll fluorometer with color graphic display and direct read out of the dark adapted FV/FM, FV/FO, and advanced OJIP parameters. Advanced Strasser protocol OJIP parameters such as PIABS, MO, Vj, Area, and others, are displayed along with fluorescence traces on the instrument color screen. Traces and all of the Strasser protocol parameters are also recorded in a data file, and may be output by USB port for future analysis. The data file allows easy creation of overlaid OJIP traces, and spider graphs of parameters.
This is a highly portable advanced plant stress testing instrument. The light adapted test is more sensitive to some types of plant stress than FV/FM, such as heat stress (see the brochure or “Plant Stress Guide” on this web site for more details). The Y(II) meter measures: ΔF/FM’ , or Y(II) , a - leaf absorptance, ETR, PAR, leaf temperature, and relative humidity. When purchased with the FV/FM meter, it becomes part of the “Plant Stress Kit”. Both instruments provide graphic display, and will run for eight hours on a pocket sized, rechargable lithium ion battery. The instrument becomes a computer drive when the USB cable is plugged into your computer. Files are comma delineated and may be opened directly into any spread sheet software. They each have 2 Gigabytes of memory.
The “Plant Stress Kit” includes the Y(II) meter and an FV/FM meter. When combined, they provide the best fast tests available for plant stress measurement. FV/FM is highly regarded and it is the most used chlorophyll fluorescence protocol. It allows comparison of different samples in the same known dark adapted state. The FV/FM meter is designed to work with dark adaptation clips, that allow large populations of samples to be measured in a short period of time. The Y(II) meter measures light adapted samples, and it is more sensitive to some types of plant stress than FV/FM (See the brochure). The Y(II) meter measures: ΔF/FM' , or Y(II) , a - leaf absorptance, ETR, PAR, leaf temperature, and relative humidity. Since measurements vary with both light intensity (Photosynthetically Active Radiation) and temperature, both P.A.R. and leaf temperature are also measured. Both instruments provide graphic display, and will run for eight hours on a pocket sized, rechargable lithium ion battery. The instrument becomes a computer drive when the USB cable is plugged into your computer. Files are comma delineated and may be opened directly into any spread sheet software. They each have 2 Gigabytes of memory.
Non-destructive in-situ measurements of Chlorophyll content or Anthocyanin content. An easy to use, fast and reliable instrument with a large memory to store up to 160,000 measurements. Both versions offer selections for single measurement, averaging from 2 - 30 measurements, and averaging with outlier removal greater than 2 sigma. Both instruments integrate a larger measuring area for greater absorbance measuring reliability. The CCM-200 plus is excellent for nitrogen management studies.
This is a unique instrument that follows a proven non-destructive technique. Until now, this technology has been too expensive for most applications; however, the new CCM-300 is very affordable. It will measure samples that can not be measured reliably by other instruments. It provides direct readout in chlorophyll content and may also be used on larger leaves such as maize, wheat and maple leaves. Now, plants may be measured from germination through maturity. Applications include: Conifer needles, rice, turf grass, cactus, fruit, Arabidopsis, lichens, algae on rocks, leaf stems, petioles, or even recently germinated Arabidopsis leaves.
This is a very flexible instrument with field interchangeable fluorescence filters. It is designed for a variety of applications including the testing for genetically modified organisms in gene expression studies. Filter combinations are available for GFP (Green fluorescent protein), YFP, Fluorescein, Rhodamine and other fluorochromes. Sensitivity is in the ppb range for most applications.
Opti-Sciences, Inc. 8 Winn Avenue Hudson NH 03051 USA (603)883-4400