檬果的花芽分化

Abstract

檬果花芽分化期可大略分成五個階段。開始分化的特徵為莖頂構造變圓，外囊層 (tunicalayer)增加，腋芽開始膨大，原始形成層正切角值隨著分化的進行而變大等。 海頓檬果較愛文花芽分化約早十天，高雄地區分化日期始於十一月初。高雄、臺南與臺中三地區比較，愈南部的花芽分化時期與開花期愈早，此可能與溫差等因素有關。花芽分化至抽穗期間的長短，似乎隨環境有所改變。 Sequence of the floral bud differentiationof mango was roughly divided into five stages.The initiation showed of a dome-shaped appear-ance on the apical end, the increase in tunicalayer and protuberances of the axillary buds. Flower bud of Haden initiated in earlyNovember and reached a peak period by lateDecember in Kaohsiung area. Irwin was a littlelater by about ten days than the Haden's. Different times of flower bud initiation andflowering have been found. Temperatures andother conditions seem to be key factors of theinitiation.