修剪、断根和基质改良对三角梅叶片SPAD值的影响
Pruning,Root Cutting,and Matrix Improvement Influence Leaf SPAD of Bougainvillea glabra
郭沛楷 1温志 1傅小霞 1张丽华 1伍成厚 1郑育芬 1乐龙胜 1刘瑞霞1
作者信息
- 1. 广州市林业和园林科学研究院,广东 广州 510405
- 折叠
摘要
为给天桥绿化三角梅的更新复壮提供参考,以上桥绿化 10 a的小叶紫花三角梅为材料,采用正交试验探究了修剪、断根和基质改良对三角梅叶片SPAD值的影响.结果表明:正交试验的三角梅叶片SPAD值为 46.4～55.5,试验 30、73 和 120 d后不同处理间均存在极显著差异;修剪强度对三角梅叶片SPAD值影响极显著,修剪 73 和 120 d后,轻度修剪的SPAD值极显著高于中度和重度修剪;断根和基质改良均不能提高三角梅的叶片SPAD值.
Abstract
This study aims to provide references for the plant renewal and rejuvenation of Bougainvillea glabra on pedestrian overpasses.An orthogonal array was adopted to study the effects of pruning,root cutting,and matrix improvement on the leaf SPAD of B.glabra which had been used for landscaping for 10 years on pedestrian overpasses.The results showed that the leaf SPAD in different groups ranged from 46.4 to 55.5,with significant differences among groups 30,73,and 120 days after treatment.The pruning intensity exerted signifiant effect on SPAD,which was higher in the light pruning group than in the moderate and heavy pruning groups 73 and 120 days after treatment.Neither root cutting nor matrix improvement increased the leaf SPAD of B.glabra.
关键词
三角梅/修剪/断根/基质改良/SPAD值Key words
Bougainvillea glabra/pruning/root cutting/matrix improvement/SPAD引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据