Does Green Mean Go?

Overview

When does electron transport really start in deciduous shrubs in the arctic tundra?  Just because green leaf tissue is present, and the spectral reflectance signal suggests greening at the canopy level, does that necessarily mean that there is photosynthetic activity?

Protocols

Chlorophyll content (SPAD) III

REQUIREMENTS: Firmware v0.41 or higher. Measures transmission at 940nm and 650nm in order to determine the 'greenness' of a leaf, an indicator of chlorophyll content and nitrogen content. The 940 is used to account for leaf thickness. Improvements over Chlorophyll content (SPAD): - performs 3 different spads at 3 intensities for thin and thick ...

Questions

  1. What species? (Multiple Choice)
  2. What transect? (Multiple Choice)
  3. What quadrat? (Multiple Choice)

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