摘要
本研究利用灰色系统关联度分析方法,对山生柳(Salix oritrepha)硬枝5种不同扦插处理的关联度及其扦插繁殖中的8个观察指标值间的关联度大小进行了计算分析,结果表明:山生柳硬枝扦插繁殖观测指标间的关联度大小依次为:保存率>主根长度>茎粗>株高>一级分枝数>地上生物量鲜质量>侧根数量;硬枝扦插5种不同处理的关联度大小依次为:覆膜>简易塑料大棚>育苗袋>育苗杯>露地。主根长度、茎粗和株高3个观测指标是影响山生柳扦插繁殖成活率的主要指标因子,覆膜处理是山生柳在高寒区最适合的快繁技术。
The relational grades of 5 hard branch cuttage treatments and 8 observing indicators of Salix oritrepha were conducted with relational grade analysis method.The results showed that the relational degrees among observing indicators of S.oritrepha cuttage with hard branch was survival rateroot lengthstem diameterheightnumber of first class branchfresh weight of aboveground biomassnumber of lateral root.The order of relational degree of 5 treatments was plastic mulchsimple plastic greenhousenursery bagseedling cupopen field.Root length,stem diameter and height were the main indicators for the survival rate and plastic mulch treatment was the proper method for rapid propagation in alpine area.
出处
《草业科学》
CAS
CSCD
北大核心
2010年第9期86-90,共5页
Pratacultural Science
基金
甘肃省技术研究与开发专项计划项目(0805TCYA020)
甘肃省科技重大攻关项目(2GS063-A31-010)
国家"十一五"科技支撑计划项目(2009BAC53B05)
关键词
高寒区
山生柳
硬枝扦插
关联度
alpine area
Salix oritrepha
hard branch cuttage
relational degree
