托里桉修枝伤口愈合研究

Wound Occlusion of Pruning on Corymbia torelliana

对3 a生托里桉进行修枝强度为树干直径5,6,7和8 cm的4种修枝试验。修枝3个月和7个月后对修枝伤口进行跟踪测量分析,结果表明:修枝强度越大或伤口位置越低,伤口愈合速度越慢;涂漆的伤口处理比涂蜡更能加快伤口愈合;小于25 mm的伤口中,小伤口比中等伤口愈合快,而大于25 mm的伤口愈合速度则高于小伤口和中等伤口;冠幅增长对各个等级伤口的愈合速率影响均不显著。

A field trial of pruning in 3 year old Corymbia torelliana established in south-western Guangdong including 4 pruning intensities-pruning all branches up to stem diameters of 5.0, 6.0, 7.0 and 8.0 cm, and 2 methods of wound protection, wax or paint. Obserbation was carried out 3 and 7 months after pruning. It was found that （1） stronger intensities of pruning and lower position of the wounds heights; （2） protection of wounds with oil painting was better with wax; （3） there was no significant correlation between the growth rate of crown area （after pruning） and the speed of wound occlusion;（4） small wounds（10 ram） occluded faster than medium wounds（10-25 mm）, while large wounds（〉25 mm） occluded faster than both small wounds and medium wounds