美丽异木棉复合体的花色变化规律研究

Study on the Pattern of Color Variation of Ceiba speciosa Complex

摘要:

美丽异木棉复合体为锦葵科吉贝属Ceiba多个物种及其杂种的合称，该类群具有非常高的观赏价值。对美丽异木棉复合体的 108 朵花进行观察、记录和分析，显示其花期主要有 6~9 d，一般经历 5 个开花阶段。在整个花期内，花瓣的先端、瓣爪部位以及花瓣基部颜色均为动态变化，其趋势主要为淡化或褐化。其中 71%的观测对象的花瓣基部与瓣爪的颜色转化时间重叠。此外，花瓣的瓣爪颜色和花瓣基部颜色变化与开花阶段有较明显的相关性，开花阶段可由瓣爪颜色和花瓣基部是否褐化进行预判。

Abstract:

Ceiba speciosa complex is a collective name for several species of Ceiba and their hybrids, and this group has very high ornamental value.In this study,108 flowers of Ceiba speciosa complex were observed, recorded, and analyzed. The results showed that the subjects’ flowering period was mainly 6~9 days,and generally experienced five stages. In the whole flowering period, the colors of the petal apex, claw and petal base all changed dynamically, and the trend was mainly desalination or browning. Among them, 71% of the subjects had overlapping color conversion times between the petal base and the claw. In addition, the color of the claw and the color of the petal base are significantly related to the flowering stage, and the flowering stage can be predicted by the color of the claw and whether the petal base is brown.