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

Which of the following definitions best describes 'Stem volume calculation - Computation'?

A. The critical photoperiod corresponds to the day length at the intersection of the slope corresponding to the Photoperiod sensitivity coefficient (i.e. line between the thermal times to panicle emergence (in ∞days) observed for different photoperiod durations (in hours)) and the basic vegetative phase photoperiod (in hours)
B. Calculate using the formula.
C. Compute vascular bundle density taking into account their number and the area of the inner zone (Z2) of the internode cross section.
D. Compute the stem volume as the sum of the individual volume of each internode along the stem using internode length and diameter and assuming that internodes are cylinders

Answer: Compute the stem volume as the sum of the individual volume of each internode along the stem using internode length and diameter and assuming that internodes are cylinders