东方百合花器官数量变异分析

Quantitative Variations on Floral Organs of Oriental Lily

对日光温室内3个东方百合品种的花器官数量变异进行分析,结果表明:3个品种的变异类型达58种,但品种间共有的变异类型较少;正常花被片出现的数目为2~8枚,其中‘Sorbonne’品种正常花被片数目种类最多;‘Sorbonne’和‘Fastrada’主要向花药减少的方向变异;从变异小花中可以看到花药瓣化的渐变性;‘Fastrada’主要的变异以花被片增加为主;在所有花被片与雄蕊数目出现的频次中,‘Siberia’出现的类型最多,且有一半以上的花被片与雄蕊数目以增加为主。丰富的变异,虽然影响了花的质量,但为百合育种及花器官研究提供材料和理论基础。

The quantitative variations on floral organs from 3 varieties of Oriental Lily planted in a greenhouse were observed for comparison.There was a total of 58 variations found,but few was common among the 3 varieties of the flowering plants.The tepals normally numbered between 2 and 8,and Sorbonne tended to have the highest count.On Sorbonne and Fastrada,the gradual changes on the number of stamen-petaloid were mainly observed on the reduction of anthers,which could be seen from the variation on the floret count.The variation on Fastrada mainly showed in the increased number of tepals.On tepal and stamen,Siberia had the highest frequencies of a same count,and more than half of them were on an increasing trend.The large variations meant an inconsistency on the floral quality.But,at the same time,they also provided abundant choices for breeding and studies on the lilies.