朱顶红鳞茎解剖及其与籽球关系研究

Studies on Bulb Anatomy and Growth Relationship between Bulb and Bulblets of Hippeastrum vittatum

对朱顶红鳞茎进行解剖,发现鳞片和花芽的固有关系：成年朱顶红鳞茎每生长3层半鳞片产生1个总花芽,幼小鳞茎要生长4～6片鳞片才能产生花芽。朱顶红鳞茎母球直径与籽球直径存在回归关系,籽球直径（y）和母球直径（x）呈显著正相关,其回归方程为y=1.074×1.143x（r=0.113＊）;籽球直径和籽球所在鳞茎层数存在回归关系,籽球直径（y）和籽球鳞茎层数（x）呈显著正相关,其回归方程为y=1.919×1.056x（r=0.113＊）

The corelation between the scale numbers of bulb and the formation of flower bud in the bulb were found after bulbs anatomied. Mature bulb could produce a flower bud once 3.5 layer scales formed, however bulblet couldn＇t produce flower bud until 4-6 layer scales developed. There was the regression relation between bulb and bulblet. There was significant positive correlation between diameter of bulblet（y）and diameter of bulb（x）. The regression equations was ： y=1.074×1.143x（r=0.113＊）. There was significant positive correlation between diameter of bulblet（y）and scale numbers of bulb where bulblet growing（x）.The regression equations was ： y=1.919×1.056x（r=0.113＊）