Task: Class Definition Understanding (ontology: Food_Agriculture/Crop_Ontology)

Which of the following definitions best describes 'SPAD chlorophyll index - Method'?

A. Average length of radicle for 50 seeds incubated for 10 days at 25 degree celcius in paper towel method
B. Average number of pods recorded for 5 randomly selected plants in a plot
C. Average number of branches that arise from primary branches
D. Average number recorded for 5 randomly selected plants in a plot with SPAD device before noon

Answer: Average number recorded for 5 randomly selected plants in a plot with SPAD device before noon