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

Which of the following definitions best describes 'Fiber content measurement'?

A. The average measurement with calipers midway between the unifoliate and the first trifoliate nodes for three mature plants per plot
B. Measure the dry weight of stover, haulm harvested after threshing plants harvested from the plot excluing the borders. Then divide the measured harvested weight by the effectively harvested area of the plot
C. Measurement of the amount of fibre out of seed weight
D. Elliptic Fourier descriptor measures 5 components, including aspect ratio of leaflet shape, location of centroid of leaflets along midrib, straightness or distortion of leaflet shape, and roundness of leaflet shape. Measured on central leaflets of fully expanded leaflets. Can also be measured as the ratio of leaflet width to leaflet length from upper third of plant.

Answer: Measurement of the amount of fibre out of seed weight