Disclosed are a method for directly preparing in situ cyclopropenes for inhibiting ethylene action facilitating ripening and aging of plants via reaction of a cyclopropene precursor such as a compound of Formula (2) or Formula (3) with a fluoride (F - ) and immediately applying the same to plants, and an aryl group-containing 1-alkylcyclopropene of Formula (6) effective for inhibiting the action of ethylene.
