朱顶红鳞茎和花剑生长发育研究

Development of Bulb and Blossom Bud of Hippeastrum vittatum

采用解剖鳞茎法,盆栽法和大田栽培法对朱顶红鳞茎结构、鳞片发育、花剑发育、花剑数量和叶片数量等进行了观察研究,结果显示,鳞茎一般分为三部分,分别为外部、中部和内部鳞片,内部鳞片中心不断分化发育形成幼鳞片和花剑,幼鳞片不断的生长成叶片,一般新鳞片从生长开始到衰老需要三年时间,鳞茎每年分化生长2个花剑并有败育现象;每个花剑上一般分化生长2-4个小花并有败育现象;鳞茎每年生长叶子8片左右,每生长4片叶子产生一个花剑。

The bulb scale development, bulb development, flower bud development and leaf numbers were studied by methods of anatomical bulb and cultivation experiment. The result showed that the bulb are generally divided into three parts as the external, middle and inner scales. The young leaves are constantly split in bulb inner center while young leaves aging. General new scales formation takes three years since the beginning of the growth. 2 flower buds are generated from the bulb and have a- bortion phenomenon. 4 flower buds are generated the two buds and have abortion phenomenon too. 8 leaves are grown on the bulbs . For every 4 leaves,a flower bud in the bulb would be formed.