风信子生物学特性与种球繁殖研究

在上海气候条件下,对安娜玛丽和海姆之城2个风信子品种进行了生长与开花、种球繁殖与鳞茎分化等研究。结果表明,不同等级的种球长成的植株,生长与开花特征表现出一定的规律性;开花时风信子植株叶片中糖含量较高,打花过后糖含量逐渐下降;2个品种中,安娜玛丽鳞茎产量高,海姆之城鳞茎繁殖系数大;显微观察表明,风信子从5月底开始花芽分化,到8月上旬花芽分化全部完成。

Study on Biological Character and Propagation of Hyacinth

The two varieties Hyacinth bulb which are Anna Marie and City of Haarlem,were used to study the growth and flowering of plants,bulb reproduction and the process of their flower buds differentiation in Shanghai.The result of this study showed that: the character of the growth and flowering of plants which grew up from different grade bulbs of Hyacinth presented a certain regularity.When the Hyacinth plant bloomed,the contents of whole soluble sugar and sucrose were relatively high.But when flower took off,the contents of total soluble sugar and sucrose declined relatively.Between the two cultivars,the bulb yield of Anna Marie is higher than City of Haarlem's,but the reproduction coefficients of City of Haarlem is the highest.The anatomic study showed that,flower bud differentiation began at the end of May and finished at the beginning of August.