摘要
从解剖学角度观察了草原樱桃绿枝扦插和硬枝扦插不定根的发育过程。结果表明:草原樱桃绿枝扦插需要30 d左右产生不定根,硬枝扦插需要40～50 d产生不定根;愈伤组织产生前,绿枝和硬枝插穗内没有发现根原基,后期在愈伤组织内发现根原基,进而发育成不定根。插穗只在愈伤组织上长出了不定根,而皮孔中没有不定根发出,可见草原樱桃插条内不形成根原基,根原基是在扦插后形成的愈伤组织中分化出来的,属诱发型根原基。
In this article,the developmental course of the adventitious roots from greenwood cutting and hardwood cutting of ground cherry was observed with the anatomical method. The results showed as follows： It took about 30 d to produce adventitious roots in ground cherry green wood cutting and adventitious roots came into being from 40 d top 50 d in hardwood cutting;There was no incubate root primordium in greed wood and hard wood cuttings before the formation of callus, subsequently root primordium was found in the callus,thereby developing into adventitious roots. Adventitious root appeared only in callus not in lenticel,and root primordium differentiation come from callus and belong to inducible root primordium. And therefore we can conclude that, it is the formation of ground cherry adventitious root to come into being callus.
出处
《北方园艺》
CAS
北大核心
2010年第3期35-37,共3页
Northern Horticulture
基金
黑龙江八一农垦大学校内基金资助项目
关键词
草原樱桃
根原基
不定根
扦插
解剖学
ground cherry
root primordium
adventitious root
ctting
anatomical
