Original video: https://youtu.be/0VB_XlFIjPE
Delivered on 3 January 2024
This video is the first part of a workshop focused on analyzing data obtained from the LI-6800 Portable Photosynthesis System. Filmed at the Faculty of Forestry, Universiti Putra Malaysia (UPM), this session guides you through interpreting key parameters, understanding photosynthetic limitations, and extracting valuable insights from your measurements.
What you'll learn:
LI-6800 Data: We'll explore the various parameters measured by the LI-6800, including those related to photosynthesis, gas exchange, and chlorophyll fluorescence.
Steady-State Measurements: Understand the common variables measured during steady-state measurements and their significance in assessing photosynthetic performance.
Optimizing Measurement Conditions: Learn about the optimal time of day for taking measurements on C3 plants and the importance of considering factors like CO2 concentration, leaf temperature, and light intensity.
Data Interpretation: We'll guide you through interpreting key parameters like assimilation rate, stomatal conductance, intrinsic water use efficiency (iWUE), and instantaneous carboxylation efficiency (iCE)
Understanding Ca, Ci, and Cc: Explore the concepts of ambient CO2 (Ca), intercellular CO2 (Ci), and chloroplastic CO2 (Cc), and their relationship to photosynthesis.
Q&A Session: Engage in an interactive Q&A session to address specific questions and clarify concepts.
Video Timestamps:
00:00 Introduction Parameter in Excel file of the LI-6800
10:00 Common variable at steady state measurement
19:00 Optimum hour to take LI-6800 on C3 plant
24:20 Carbon dioxide CO2 location in plant
25:25 Ci Ca ratio
36:45 Leaf temperature, thermocouple
41:00 Light sensor, visible light PPFD
44:00 Avagadro's constant
53:00 Actinic light setting need blue light
01:01:01 Calculated variable
01:22:10 Data interpretation
01:54:00 Summary of data and improvement
01:59:00 Understanding Ca, Ci & CC
02:04:00 Fluorescene data
02:08:41 Checklist summary
02:21:00 Q&A
02:22:00 gsw vs transpiration
Keywords: LI-6800, photosynthesis, plant physiology, gas exchange, chlorophyll fluorescence, data analysis, stomatal conductance.
Watch Part 2 here: https://youtu.be/xcqnkm9fzlY
Location:
Faculty of Forestry and Environment
Persiaran Tulang Daing, 43400 Serdang, Selangor
2P35+32 Serdang, Selangor
3.0028342028498716, 101.70765826605694
Attribution 4.0 International — CC BY 4.0 - Creative Commons
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