Assertion: shallot's onion | /r/Desires | only 11–12 hours of daylight
Facets:
value: to stimulate bulb formation
type: PURPOSE
Source sentences:
text: Finally, "short-day" onions, which have been developed in more recent times, are planted in mild-winter areas in the autumn and form bulbs in the early spring, and require only 11–12 hours of daylight to stimulate bulb formation.