LI-6400XT offers a variety of leaf chambers-Global supplier

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LI-6400XT offers a variety of leaf chambers

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The LI-6400XT has multiple detachable blade chambers and is easy to operate. The inner surface of the leaf chamber can reduce water vapor adsorption, while the outer surface can reduce radiation absorption and increase radiation reflection. The replaceable gasket can tightly seal the blade chamber and isolate CO₂And water vapor.

Leaf temperature can be directly measured by thermocouples or determined by energy balance method. For example, in the 6400-05 clustered leaf chamber, 6400-07 needle shaped leaf chamber, and 6400-15 duckbill leaf chamber, the energy balance method is used to measure leaf temperature.
There is a bracket on the head or leaf chamber of the LI-6400XT analyzer used to secure the optical quantum sensor, which can be used to measure photosynthetically active radiation (PAR). Other leaf chambers use GaAsP sensors to measure PAR.

Broad-leaved plants

$\\$	Standard leaf chamber The standard blade chamber size of LI-6400XT is 2× 3cm， Transparent at the top and opaque at the bottom, it can measure the photosynthesis of many deciduous plants.
$\\$	6400-08 transparent bottom blade chamber Illuminating the bottom of the leaves is very useful for measuring photosynthesis in upright leaves. The top of the transparent bottom leaf chamber is made of Propafilm^®Made with a shape similar to a standard blade chamber, and its bottom is made of 2× Replace the top of the 3cm standard leaf chamber.
$\\$	6400-11Narrow leaf chamber 6400-11 is an ideal leaf chamber designed for narrow leaved plants, with a translucent area of 2× 6cm， It can measure the PAR of the blade plane inside the blade chamber.
$\\$	6400-40 Fluorescent Leaf Chamber Can simultaneously measure gas exchange parameters and fluorescence parameters of the same blade; Can perform photosynthetic fluorescence measurements under controlled environmental conditions; Measuring an area of 2.0 cm²Good 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.

Coniferous plant

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6400-05Clustered leaf chamber

The leaf chamber has a diameter of 7.5cm and can accommodate short needle leaved plants up to 3.5cm in length. 6400-05 replaces the upper and lower parts of traditional leaf chambers and is directly embedded into the CO of IRGA₂And H₂In the O analysis unit. The clustered leaf chamber is made of acrylic plastic, which is durable and long-lasting, while the use of PTFE material can reduce water vapor adsorption.

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6400-07Needle shaped leaf chamber

This leaf chamber is designed specifically for slender coniferous plants, this 2× The foam gasket on the 6cm leaf chamber can fix up to 5 needles. 6400-07 can tightly clamp the needles in the gaps of the foam gasket, so that the needles can be fixed on the leaf chamber. The top and bottom of 6400-07 have transparent windows that allow light to pass through. The light quantum sensor inside the blade chamber can measure the light intensity on the blade plane.

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6400-22LControllable light clustered leaf chamber

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, and blue light sources, which can adjust the light intensity and the ratio of red, green, and blue colors to meet more comprehensive research needs.

Used in conjunction with 6400-18A red, green, and blue light sources
The unique internal structure of opaque clustered leaf chambers allows for uniform reflection of light
Measure the light response curve and CO of clustered branches₂Response curve and other processes

Special leaf chamber design

$\\$	6400-15 duckbill leaf chamber The duckbill leaf chamber is designed specifically for small clustered leaf plants, and traditional leaf chambers often cannot hold clustered leaf plants tightly. The top and bottom of 6400-15 have light holes that allow natural light to enter. The diameter of the through-hole is 1.0cm and it is installed 8.5cm away from the IRGA. When using this blade chamber, the blade chamber CO₂The concentration is close to the environmental concentration.
$\\$ $\\$	6400-17 whole Arabidopsis leaf chamber 6400-17 has a larger light hole (7cm in diameter) used to measure the photosynthesis of the entire Arabidopsis plant, not just the photosynthesis of the leaves. The air temperature inside the leaf chamber is measured using a thermocouple in the gas circuit, avoiding the radiation effect of the light source. The thermocouple is inserted into the existing temperature control module at the head of the LI-6400XT analyzer. The leaf temperature is calculated using the energy balance estimation method in the software. During measurement, Propafilm material and O-ring are used at the top of the blade chamber to ensure the tightness. This O-ring can provide good tightness without the need for traditional foam gaskets. Due to the presence of soil and artificial media in the leaf chamber space, soil CO₂The flux will also be included in the CO of the entire plant₂In the measurement of flux. A standard mud carbon mixture containing a clay layer can inhibit soil respiration. The exhaust pipe can generate a slight high pressure inside the blade chamber, which can also suppress soil CO₂Flux.
$\\$	6400-24 Moss Leaf Chamber Suitable for fluffy materials such as moss, placed in shallow dishes to monitor gas exchange. Connect the 6400-18A 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.

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