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Position: Home > Articles > Anatomical Observation on the Root System of the Cutting of Malus hallian Roehne Journal of Anhui Agricultural Sciences 2006,34 (19) 77-79

垂丝海棠插穗扦插生根过程解剖学研究

作者：

许晓岗;童丽丽

单位：

南京林业大学森林资源与环境学院

关键词：

垂丝海棠;诱生根原基;不定根;插穗

摘要：

从解剖学的角度观察垂丝海棠插穗不定根的发育过程,结果表明:垂丝海棠2年生插穗茎内无潜伏根原基,不定根由诱生根原基发育形成,诱生根源于愈伤组织自身形成的初生射线与维管形成层交汇处细胞的分裂分化。大约经40 d,不定根原基发育为幼小不定根并伸出周皮之外。并且愈伤组织内有些细胞分化为具螺纹加厚的厚壁细胞,在愈伤组织内产生根原基。

译名：

Anatomical Observation on the Root System of the Cutting of Malus hallian Roehne

作者：

XU Xiao-gang et al (Co1lege of Forest Resources and Environment,Nanjing Forestry University,Nanjing,Jiangsu 210037)

关键词：

Malus prunifolia;Induced root primordia;Adventitious root;Cutting

摘要：

Malus halliana Roehne grows faster than its homogeneities and its flowers are provided with gorgeous characteristics and possess great ornamental quality.The method of vegetative propagation was taken to produce seeding at present.In this article,the developmental course of the adventitious roots from cutting of Malus halliana Roehne was observed with the anatomical method.The results were shown as follows:① there was no incubate root primordium in cutting stem of two year-old Malus halliana Roehne.The induced root primordium developed into the adventitious root and the adventitious root developed form the originated form,which were generated from the callus of the division and differentiation of the vascular cambium cell.After 40 days,the adventitious root primordia developed into young adventitious roots;② the callus could form adventitious root primordium and only form much sclerenchyma.The next step of the investigation was stressed on the physiological mechanism of adventitious root from cutting of Malus prunifolia.

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垂丝海棠插穗扦插生根过程解剖学研究

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