Assertion: chlorophyll's pigment | /r/HasProperty | absent
Facets:
value: from senescent leaves of bf
type: LOCATION
value: at the mature stage
type: TEMPORAL
value: almost
type: DEGREE
Source sentences:
text: However, all of the fruits share that their external coloration is green at the immature stage due to the presence of chlorophylls and that these pigments start to decrease during ripening  to be almost absent at the mature stage, as a consequence of the chlorophyll catabolism.
text: These pigments appeared to be absent from senescent leaves of Bf 993, a non-yellowing genotype.