Product Features:

Easy and fast connection with LI-6400XT analyzer

Simultaneously measuring gas exchange and fluorescence parameters of plant leaves, with a measurement area of up to 2.0 cm2

No need for additional controllers, power supplies, or fragile fibers

Measurable fluorescence parameters of leaves under dark and light conditions

Can fully control photochemical light, saturation light, measurement light, and far-infrared light

It has various automatic measurement programs such as light response curve, CO2 response curve, light induction curve, fluorescen-CO2 response curve, fluorescence light response curve, fluorescence kinetics curve, fluorescence cycle, etc; Users can write various automatic measurement programs according to their needs, and the LI-6400XT portable photosynthesis measurement system meets the needs of various experiments

【LI-6400XT Portable Photosynthesis Measurement System】Product performance:

Integration: LI-6400XT seamlessly integrates gas exchange and fluorescence measurement, making it the most integrated gas exchange fluorescence measurement system to date

Automatic control: The LI-6400XT software can control the measurement and calculation of all parameters. The light response curve and CO2 response curve can be generated by automatic programs, avoiding accidental errors caused by human factors.

Zero equilibrium of CO2 and H2O: LI-6400XT can not only control the concentration of CO2 and H2O entering the leaf chamber gas, but also control the concentration of CO2 and H2O inside the leaf chamber (zero equilibrium)

Analyzer: The four channel infrared CO2/H2O analyzer of LI-6400XT is located at the head of the blade chamber, eliminating the measurement delay and error caused by using a long tube to introduce the blade chamber gas into the analyzer; High precision and fast response

Operating system: LI-6400XT software has a user-friendly and programmable interface, and the display of data and graphics can be flexibly changed. Data can be stored in the host's internal memory or on a CF card, making import and export flexible and convenient

LED red/blue light source (6400-02B): The LED red/blue light source can continuously change between 0-2000 µ mol · m-2 · s-1, and produces almost no heat, without disturbing the blades and without the need for additional batteries

RGB red green blue light source (6400-18): It can be combined with various transparent large leaf chambers (clustered leaf chamber, Arabidopsis leaf chamber, moss leaf chamber, narrow leaf chamber, self-made leaf chamber, etc.) for light control experiments, providing a powerful tool for measuring the light response/CO2 response curve of the entire plant (rosette shaped leaf clusters and clustered short branches).

(1) Available in red, green, blue, white, or any proportional combination of various colored lights

(2) Continuous variable light intensity can generate automatic light curves, fully integrated with LI-6400/6400XT

(3) Cold light source and uniform light emission: The unique design of LED ensures that light is evenly distributed on the surface of the blade, and low heat production reduces the impact of the light source on the blade

Whole Arabidopsis leaf chamber (6400-17): The whole plant can be implanted, completely solving the problem of gas exchange measurement in small clustered leaf plants and making it easier to repeat the entire growth process of the plant. The replaceable leaf chamber base is suitable for flower pots with a diameter of 65 mm and conical containers with a diameter of 38 mm.

(1) Measure the photosynthesis/respiration of the entire plant

(2) "O" ring instead of foam washer

(3) The upper peat mixed clay layer and exhaust pipe device provide a slight positive pressure inside the leaf chamber to suppress carbon release from the soil

Controllable light cluster leaf chamber (6400-22L): LI-COR has launched a new 6400-22L controllable light cluster leaf chamber based on the 6400-05 cluster leaf chamber, equipped with RGB red green blue light sources, which can adjust the light intensity and the ratio of red, green, and blue colors to meet more comprehensive research needs.

(1) Used in conjunction with 6400-18 red, green, and blue light sources

(2) The unique internal structure of opaque clustered leaf chambers allows for uniform reflection of light

(3) The process of measuring the light response curve and CO2 response curve of clustered branches

6400-24 Moss Leaf Chamber: Suitable for fluffy materials such as moss, placed in shallow dishes to monitor gas exchange. Connect the 6400-18 red, green, and blue light sources to the 6400-24, and the measurement room can control the intensity and proportion of the red, green, and blue light sources.

Modulation fluorescence chamber (6400-40): capable of simultaneously measuring gas exchange parameters and fluorescence parameters of the same leaf; Can perform photosynthetic fluorescence measurements under controlled environmental conditions; The measurement area reaches 2.0 cm2, with good stability and repeatability; Can fully control photochemical light, saturation light, measurement light, and far red light; No need for fragile fiber optics and additional controllers and power supplies, making it easy to install in the field.

(1) Measurement parameters include Fo, Fm, Fs, Fm ', Fo', while calculation parameters include Fv, Fv/Fm, Fv '/Fm', PhiPSII, qP, qN, NPQ, and ETR; The LI-6400XT portable photosynthesis measurement system has multiple automatic measurement programs, including light response curve, CO2 response curve, light induction curve, fluorescen-CO2 response curve, fluorescence light response curve, fluorescence kinetics curve, fluorescence cycle, etc; Users can write various automatic measurement programs according to their needs

(2) The new Multiphase Flash Fluorescence Protocol, abbreviated as MPF, can more accurately estimate the Fm 'value (EFm'). Accurate measurement of Fm 'is very meaningful for calculating accurate parameters such as Φ PSII (actual photochemical quantum efficiency), J (electron transfer rate), qN (non photochemical quenching), gm (mesophyll conductance), and others. For non stressed plants, the experimental results using EFm' to calculate the electron transfer rate J and total CO2 assimilation (AG) are more in line with theory.

Soil respiration chamber (6400-09): equipped with 6400-09 soil respiration chamber, LI-6400XT can be used to automatically measure soil CO2 flux

【LI-6400XT Portable Photosynthesis Measurement System】Technical Specifications: