Assertion: ethylene | /r/CapableOf | decrease to 0.1 to 0.3 ppm
Facets:
value: during the winter
type: TEMPORAL
Source sentences:
text: In Scotch pine stems, ethylene in the sapwood rose to 3 to 7 ppm during the growing season and decreased to 0.1 to 0.3 ppm during the winter (Fig. 13.6).