亚热带植物科学2023，Vol.52Issue(6)：487-494,8.DOI:10.3969/j.issn.1009-7791.2023.06.004
微型月季插穗筛选及其生根生理和解剖结构研究
Research on the Screening of Rosa chinensis Minima Cuttings and the Physiology and Anatomical Structure of Root Formation
摘要
Abstract
To investigate the influence of unlignified,semi-lignified,and lignified cuttings on root formation,two varieties of Rosa chinensis var.minima known as'Lady'and'Venus'were employed as test subjects in this experiment.Simultaneously,the dynamic changes of the endogenous hormone content of the semi-lignified cuttings of'Lady'were determined,and their anatomical structure was observed.The results showed that the lignification degree of cuttings affects the rooting of cuttings.The cutting effect of the two mini rose cultivars is as follows:semi-lignified cuttings>unlignified cuttings>lignified cuttings.The semi-lignified cuttings of the'Lady'variety exhibited adventitious root formation within 7 days of cutting,exhibiting superior rooting ability compared to'Venus'.The indole-3-acetic acid(IAA)content in the semi-lignified cuttings of'Lady'displayed a decreasing trend over time,while the abscisic acid(ABA),gibberellic acid(GA),and zeatin riboside(ZR)contents initially decreased and then increased.Variations in the levels of source hormones collectively influence the formation of adventitious roots.Anatomical observations revealed the absence of latent root primordium in rose cuttings,indicating that they belong to the category of induced root primordium.The adventitious root primordium originated from the parenchymal cell in phloem and vascular cambium.关键词
微型月季/扦插/生根/内源激素/解剖结构Key words
miniature rose/cutting/rooting/endogenous hormone/anatomical structure分类
农业科技引用本文复制引用
赵冰雪,周琳,黄清俊,杨柳燕,姚建军,张永春..微型月季插穗筛选及其生根生理和解剖结构研究[J].亚热带植物科学,2023,52(6):487-494,8.基金项目
上海市科委农业领域项目(20392000200) （20392000200）
上海市科技兴农技术创新项目[沪农科创字(2019)第3-6号] （2019）
上海市现代农业产业技术体系[沪农科产字(2023)第8 号] （2023）
上海市植物种苗组培专业技术服务平台(21DZ2292300) （21DZ2292300）
