不同修剪时间对木芙蓉生长发育的影响

Effects of Different Pruning Time on the Growth and Development of Hibiscus mutabilis

为探究不同修剪时间对木芙蓉生长发育的影响,以三年生地栽木芙蓉“百日华彩”为材料,设置了4月15日、5月15日、6月15日三个修剪时间点。修剪处理后,对木芙蓉营养生长、花期、花量进行观测。结果表明:修剪时间对“百日华彩”木芙蓉的株高、未着花枝条数、主枝直径有极显著影响,对其冠幅、分枝数、叶长有显著影响;修剪对“百日华彩”花期、花量有显著影响;修剪能够明显抑制“百日华彩”的始花时间,越晚修剪,始花期出现越晚。

In order to study the effects of different pruning time on the growth and development of Hibiscus mutabilis,the three-year-old planting'bairihuacai'was used as the material,and April 15,May 15 and June 15 were set as three pruning time points.After pruning,the vegetative growth,flowering period and flower quantity of Hibiscus mutabilis were observed.The results showed that the pruning time had significant effects on the plant height,number of unexposed branches,diameter of main branches,crown width,branch number and leaf length of'bairihuacai'.Pruning had a significant effect on the flowering time and flower quantity of'bairihuacai'.Pruning can significantly inhibit the first flowering time of'bairihuacai',and the later the pruning,the later the first flowering time of flowering.