Question : What is Red drop or Emerson's first effect?

1.	Question : What is Red drop or Emerson's first effect?
Answer» Solution :1. EMERSON conducted experiment in Chlorella using only one wavelength of light (monochromatic light) at a TIME and he MEASURED quantum yield. 2. The fall in the photosynthetic yield beyond red REGION of yhe spectrum is REFERRED as Red drop or Emerso

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