Original video: https://youtu.be/VabDj7_uLrg
Delivered on: 5 September 2024
This session provides an in-depth exploration of data extraction, analysis, and interpretation, particularly using the LI-6800 portable photosynthesis system. Key topics include the process of extracting raw data, a demonstration of data formatting for survey measurements, and distinguishing computed versus directly measured data.
A breakdown of essential symbols precedes discussions on the CiCa ratio, its ideal range for tropical plants, and how to interpret values outside this range. The video further explains concepts like leaf temperature, CO2 and H2O reference and sample, intrinsic water use efficiency (iWUE) and intrinsic carboxylation efficiency (iCE), followed by curve fitting for light and CO2 response. Additional sections cover stomata localization, fluorescence data interpretation, and conclude with a wrap-up of the training session.
Timestamps:
00:00 Recap and Introduction to today's session
05:04 Data extraction
17:20 Raw data for survey measurement (excel file format) extracted from Li-6800
20:26 Computed data & directly measured data
23:37 Summary of symbols
31:17 CiCa ratio
35:00 Ideal range of CiCa ratio for tropical plant
36:15 Interpreting data outside the range
42:51 Interpretation- Leaf temperature
57:09 Concept of CO2 reference and sample
1:03:08 Concept of H2O reference and sample
1:08:08 Concept of iWUE & iCE
1:23:06 Performing light response curve using curve fitting tool
1:32:12 Interpreting light response curve
1:39:53 Performing CO2 response curve using curve fitting tool
1:47:28 Interpreting CO2 response curve
2:09:05 Stomata localization
2:17:36 Interpreting fluorescence data
2:53:34 Closing of the training
Location:
Department of Crop Science, UPM
XPMM+8R Seri Kembangan, Selangor
2.9833022017431574, 101.73468532055584
Attribution 4.0 International — CC BY 4.0 - Creative Commons
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