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- 1Chlorophyll Fluorescence
- 1Cold Stress
- 1Photochemical Reflectance Index (PRI)
Annual trends of the Photochemical Reflectance Index (PRI) and pigment content in evergreen conifer leaves were monitored over two years from 2011 to 2013. During the second year, chlorophyll fluorescence and gas exchange were included to examine the spring recovery of photosynthesis. All the...