The stimulus can be transferred from one plant to another by grafting , but attempts to isolate florigen have so far been unsuccessful 该刺激物可通过嫁接从一个植株转移到另一植株，但目前还没有成功分离出成花激素。
2.
Florigen ( flowering hormone ) a hypothetical plant hormone that has been postulated to account for the transfer of the photoperiod stimulus from the leaves to the apex where flowering is induced 成花激素：一种假定的植物激素，该假设用来解释来自于叶中，在茎端诱导成花的光周期刺激物质的转运。
