摘要
对33个薄壳山核桃无性系的6个树体性状指标进行比较分析、相关分析,树形分类以及薄壳山核桃在园林中的应用阐述。结果表明：地径、胸径、树高、冠高、冠幅在无性系间、无性系内均有极显著差异;无性系14号、＂黄山1号＂、无性系9号生长快速,可作为园林优系推广;相关分析中,胸径与地径、树高与冠高有极显著相关性,相关指数分别为0.92、0.96;树形指数为0.59~0.82,接近黄金分割点,树形美观,为圆球形、广卵形;园林应用方面,薄壳山核桃是很好的孤赏树、庭院树、行道树、混交林树种,应加以推广。
Six indexes of tree characteristics of 33pecan（Carya illinoensis）clones were compared,and the correlation of them,tree classification and landscape application were analyzed.The results showed that there were highly significant differences among ground diameter,breast diameter,tree height,crown height and crown width within a clone or among clones.Clone 14,‘Huangshan No.1＇and clone 9grow fast and could be popularized as excellent clones in the landscape.In the correlation analysis,there were highly significant correlation with the correlation indexes 0.92 and 0.96 between breast diameter and ground diameter,tree height and crown height.Tree form index,closed to the golden section point,was 0.59 to 0.82.The tree was spherical,broad-ovate and beautiful.C.illinoensisshould be a very good species that could be as solitary appreciation tree,courtyard tree,street tree and mixed forest tree in the garden application.
出处
《北方园艺》
CAS
北大核心
2014年第24期63-66,共4页
Northern Horticulture
基金
国家科技支撑计划资助项目(2013BAD14B0104)
浙江省重大科技专项资助项目(2012C12904-13)
绍兴市科技计划资助项目(2012B60003)
关键词
薄壳山核桃
无性系
树体性状
园林应用评价
Carya illinoensis
clone
tree characteristics
oranamantal evaluation
