重瓣黄刺玫嫩枝繁殖生根与成苗因素的探讨  

DISCUSSION ON ROOTING AND SEEDLING-FORMING FACTOR FOR PROPAGATION BY EPICORMIC BRANCH OF R.xanthina Lindl(cv′.Plena′)

作　　者：温阳[1] 白育英[1] 杨文斌[1] 闫德仁[1] 王晶莹[1] 

机构地区：[1]内蒙古林业科学研究院,呼和浩特010010

出　　处：《内蒙古农业大学学报（自然科学版）》2002年第3期25-29,共5页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古自治区计委科技推广项目资助

摘　　要：用植物生长刺激素和间歇喷雾方法可使嫩枝扦插的重瓣黄刺玫获得较高的生根率。但是生根的植株在倒苗或定植后 ,成活率不足 5 0 %。本文通过试验证实了扦插根系发育质量与倒苗时根系木质化程度是影响定植苗成活的关键。为改善根系发育条件 ,设计了两层结构扦插基质、生根苗留床越冬翌春直接定植的方法 ,使重瓣黄刺玫的田间成苗率达到 90 %,效果很好。R xanthina Lindl(cv′.Plena′)isa garden plant with high ornamental value.It can improve rootability of R.xanthina Lindl(cv′.Plena′)cuttage epicormic branch by using plant-growth regulator and intermittent spray.Moreover,after seedling-laying or field planting of rooted stand,the seedling-forming rate is less than 50%.The experiments,proved that developmental quality of root system of cutting seedling and lignification degree of root system during seedling-laying are key factors to influence survival rate.In order to improve the root system,several techniques and methods,such as cutting medium in double structure,overwintering by reserving matted bed and direct field planting in next spring can be used,which can raise the seedling-forming rate of R.xanthina Lindl(cv′.Plena′) to 90% in field .

关 键 词：重瓣黄刺玫 扦插基质 根系发育 田间成苗率 嫩枝扦插 

分 类 号：S685.12[农业科学—观赏园艺]