摘要
通过田间对比试验研究了杂种马褂木无性系插条的生根类型、生根能力的遗传变异、母株的年龄效应和位置效应。结果表明：（１）插条兼有皮部生根和愈伤生根二种类型，大多数无性系呈现其中一种类型，少数无性系同时包含二种类型；（２）成年树和幼年树基部插条生根能力均存在较大变异性，而且幼年树比成年树的变异幅度更大；（３）扦插繁殖的母株年龄效应不明显，成年树的基部萌条具有很强的生根能力；（４）幼年树插条生根存在位置效应。
Root formation type, rootforming ability genetic variation, ortets effect and position effect of the hybrid Chinese tulip tree ( Liriodendron chinense (Hemsl )Sarg× L tulipifera Linn )clones are studied through the field contrast test The results showed as follows:(1) Cuttings include two types of root formation, i e cortical layer rooting and cellus rooting Most clones assume one of all and a few clones with two types (2) The rootforming ability of different cuttings in adult and young hybrid all has great variation Young hybrids variation range is much larger than adult hybrids (3) The ortets age effect of cutting propagation isnt obvious and the rootforming ability of basal stem sprouts of adult hybrids is greatly powerful (4) Rootforming ability of young hybrids sprouts has a position effect
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
1998年第2期71-74,共4页
Journal of Nanjing Forestry University：Natural Sciences Edition
关键词
杂种马褂木
无性系
生根能力
遗传变异
扦插
The hybrid Chinese tulip tree
Clone
Cutting propagation
Rootforming ability
Genetic variation
