WebAug 25, 2015 · SPAD readings are calculated based on two transmission values: the transmission of red light at 650 nm, which is absorbed by chlorophyll and the … WebAccurate determination of chlorophyll concentration of different plants in absolute units [µmol m -2] Our patented chlorophyll concentration meter returns chlorophyll concentration in absolute units of micromoles of …
Units Accustomed to Measure Chlorophyll - ScienceBriefss.com
WebNov 27, 2024 · The measurement values are SPAD units, atLEAF units and the CCI, for the SPAD-502 meter, atLEAF+ sensor and MC-100 meter, respectively. CCI is calculated by the MC-100 as the ratio between transmission of radiation at 931 nm divided by transmission of radiation at 653 nm. WebMar 7, 2007 · Relationships between chlorophyll concentration ([chl]) and SPAD values were determined for birch, wheat, and potato. For all three species, the relationships were non-linear with an increasing slope with increasing SPAD. The relationships for birch and wheat were strong (r 2 ∼ 0.9), while the potato relationship was comparatively weak (r 2 … 1m稀释到10mm怎么稀释
SPAD 502 Meters Spectrum Technologies
WebThe SPAD-502 meter is a hand-held device that is widely used for the rapid, accurate and non-destructive measurement of leaf chlorophyll concentrations. It has been … Web$349.99 In stock SKU atLEAF+ Quickly and easily determine the chlorophyll levels of your leaves. Easily convert readings to SPAD units. Chlorophyll levels is a good indicator of Nitrate Nitrogen levels. Data logging for up to 9,554 measurements by species name. Comes with free downloadable software or additional PRO software (sold separately). Web23 rows · The SPAD-502Plus enables quick, easy measurement of the chlorophyll content of plant leaves ... 1m竹定規