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

Which of the following definitions best describes 'Screening method for Colar resistance'?

A. Nodule damage was assessed in five plants randomly selected from each plot, uprooted with soil to recover most of the root system and then washed in laboratory
B. Average number of seeds of 10 dry pods
C. Grain yield/ (straw yield + grain yield)
D. Observation of seedling mortality

Answer: Observation of seedling mortality