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

Which of the following definitions best describes 'Plant below-ground dry biomass'?

A. If possible, root biomass could also be measured (especially when plants are growing in sandy soil)
B. Total number of plants that were harvested of the plot.
C. Thickness of the stem measured just underneath the main panicle
D. The angle at which the majority of plants are leaning, measured between the vertical axis and the horizontal axis

Answer: If possible, root biomass could also be measured (especially when plants are growing in sandy soil)