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

Which of the following definitions best describes 'Weekly leaf emission rate - computation'?

A. Calculate as: the time elapsed between the Date of harvest of the bunch of the plant from the preceeding crop cycle and the Date of harvest of the bunch of the plant from the current crop cycle, e.g. 24/11/2015 - 24/12/2014 = 335 days.
B. Researchers calculate the preference score by respondents
C. (Leaf Fresh Weight - Leaf Dry Weight) / Leaf Fresh Weight
D. Calculate as: the Rank of previously marked leaf at one point in time, minus 1 (equivalent to the Rank of marked youngest leaf), divided by the time elapsed between the two Date of data collection events when the marked leaf was recorded as 1) the Rank of marked youngest leaf and 2) the Rank of previously marked leaf, e.g. (2 - 1) / 1 week = LER of 1 leaves/week during a particular time period.

Answer: Calculate as: the Rank of previously marked leaf at one point in time, minus 1 (equivalent to the Rank of marked youngest leaf), divided by the time elapsed between the two Date of data collection events when the marked leaf was recorded as 1) the Rank of marked youngest leaf and 2) the Rank of previously marked leaf, e.g. (2 - 1) / 1 week = LER of 1 leaves/week during a particular time period.