无籽蜜柚物候期与花芽分化形态学研究

Phenology and Flower Bud Differentiation Morphology of Seedless Honey Pummelo

对海南无籽蜜柚物候期及花芽分化过程的形态学进行研究,探讨无籽蜜柚生长发育规律及花芽分化机理。结果表明,无籽蜜柚的物候期分为萌芽期、花蕾期、始花期、盛花期、谢花期、第一次生理落果期、第二次生理落果期、果实成熟期和新梢生长期,其中花芽形态分化期为12月中下旬至1月中下旬。无籽蜜柚花芽形态分化分为7个时期:未分化期、分化初期、花萼分化期、花瓣形成期、雄蕊分化期、雌蕊分化期、子房形成期。

Phenology and floral differentiation morphology of the seedless honey pummelo were studied.It was found that the plant growth could be divided into germinating,budding,early flowering,blooming,withering,first physiological fruit dropping,second physiological fruit dropping,fruit ripening,and new shoot growing phenophases.The differentiation of flower buds started from mid-to-late December to mid-to-late January in a year with seven distinct periods of undifferentiation,initial differentiation,calyx differentiation,petal formation,stamen differentiation,pistil differentiation,and ovary formation.