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

Which of the following definitions best describes 'Compound leaf length measurement'?

A. Description: Record the date at which a plant or plot was defoliated

 Materials:

 Dependent on:

 Protocol:
 1. Record the ISO 8601 date at which a plant or plot was defoliated
B. Description: Measurement of the length of a compound leaf

 Materials: Metric ruler or tape measure

 Dependent on:

 Protocol:
 1. Select a mature, fully-expanded compound leaf
 2. Lay the compound leaf out on a flat surface and record the length from the proximal end of the petiole to the distal end of the terminal leaflet.
C. Description: Measure the total dietary fiber in a sample of seeds

 Materials:

 Dependent on:

 Protocol:
 1. See AACC 32-07.01 (method1)
 2. See AOAC 991.43 (method2)
D. Description: Measure the total ash content of seed flour by incinerating in a muffle furnace

 Materials: muffle furnace with pyrometer and temperature control; broad shallow ashing dish; scale;

 Dependent on:

 Protocol:
 1. Weigh 3-5 +/- 0.0001 g of well mixed sample into ashing dish that has been ignited, cooled in desiccator, and weighed soon after attaining room temperature.
 2. Place in muffle furnace at 550F for soft wheat flours or 575-590 for hard wheat flours. Incinerate until light gray ash is obtained or to constant weight. Ash must not be allowed to fuse. Cool in desiccator and weigh soon after room temperature is attained.
 3. See AACC 08-01.01

Answer: Description: Measurement of the length of a compound leaf

 Materials: Metric ruler or tape measure

 Dependent on:

 Protocol:
 1. Select a mature, fully-expanded compound leaf
 2. Lay the compound leaf out on a flat surface and record the length from the proximal end of the petiole to the distal end of the terminal leaflet.