不同断根方式对深山含笑全冠移栽生长的影响

Effect of Different Methods of Root Pruning on Full Crown Transplanting of Michelia mauldiae

以深山含笑为试材,研究了不同断根方式对其全冠移栽生长的影响,以期找出深山含笑最适宜的移栽方式,并为容器苗的培育提供理论依据。设5个处理,每个处理采用不同方位、不同比例的断根方式来探究最适合深山含笑的断根方法。结果表明:随着断根比例的增多,移栽后枯亡枝叶的数量有减少的趋势,秋季全部断根方式对全冠移栽深山含笑入容器的初期生长状况最好,树冠的保留最佳;不同断根方式对深山含笑移栽后冠幅恢复的影响,差异较大,其中,处理4的恢复效果最好;不同断根方式对深山含笑全冠移栽枝叶生物量生长的影响,处理1深山含笑各个生物量指标都达到最佳。

Taking Michelia mauldiae as material, the effect of different methods of root pruning on full crown transplanting in order to explore the most suitable full crown transplanting methods of Michelia mauldiae were studied and provided a theoretical basis for container seedling cultivation. Five treatments were adopted according to different directions and different root pruning ways with different proportions. The results showed that the number of dead branches and leaves was on the decrease with the increase of the root pruning proportions of Michelia mauldiae, pruning the root in all-round in autumn was the most suitable way for the early growth and tree crown retention of full crown transplanting container seedlings of Michelia mauldiae. Different root pruning ways had significantly different effects on crown recovery of the translated Michelia mauldiae. The fourth treatment had the best effect to recover the tree crown of the translated Michelia mauldiae. The first treatment was the best root pruning and was suitable to improve the biomass indexes of full crown transplanting container seedlings of Michelia mauldiae.