摘要
以1年生‘奥斯特’北美冬青扦插容器苗为试验材料,采用叶面喷施和土壤浇施2种方法,研究了多效唑对其盆栽苗生长和坐果的影响。结果表明:多效唑可以有效矮化盆栽北美冬青的株型,提高封顶枝比例,使株型紧凑饱满,以土壤浇施150 mg/L(原药1 000倍稀释液),或叶面喷施300 mg/L(原药500倍稀释液)多效唑为宜。在适宜的处理质量浓度下,喷施当年效果优于浇施,浇施第2 a效果优于喷施;从试验结果看,多效唑对北美冬青盆栽苗的坐果数量有一定的负作用。
With the annual potted Ilex verticillata ‘Oosterwijk＇as test material,effects of paclobutrazol（ PP333） on its growth and fruit setting by two methods of application（ foliage spray and root drench） were determined. The results showed that PP333 could effectively dwarf the height of plants and raise the proportion of cap branches to make them compact. The best treatment was regarded as 150 mg / L PP333（ 1 000 times dilution） applied as root drench,or 300 mg / L PP333（ 500 times dilution） applied as foliage spray. At suitable concentration,singly,the effect of foliage spray was better than that of root drench in the first year while the effect of root drench better than that of foliage spray in the second year. We also found out that PP333 had side effects on fruit setting to some extent.
出处
《江苏林业科技》
2015年第3期21-23,46,共4页
Journal of Jiangsu Forestry Science & Technology
基金
中央财政林业科技推广示范资金项目([2012]TS008)
浙江省花卉新品种选育重大科技专项重点项目(2012C12909-8)
杭州市科技发展计划项目(20130932H07)
关键词
北美冬青
多效唑
叶面喷施
土壤浇施
坐果
Ilex verticillata
Paclobutrazol
Foliage spray
Root drench
Fruit setting
