摘要
为了进一步探究喜马拉雅樱花嫩枝扦插繁殖特性,本研究对喜马拉雅樱花与其它7个樱花品种在嫩枝扦插生根及成活方面的差异进行了比较研究,同时还探讨了施肥对扦插苗新梢长度和叶片叶绿素含量的影响。结果表明:不同樱花品种间扦插生根率和成活率差异显著,喜马拉雅樱花插穗生根率和成活率均为最高,分别为97.3%和92.7%,且生根进程较快;椿寒樱生根率最低,为46.0%;阳光樱成活率为0。从喜马拉雅樱花扦插苗的施肥试验可以发现,施用氮肥可以促进苗木新梢生长,提高叶片叶绿素含量。但不同施肥浓度对扦插苗新梢长度和叶片叶绿素含量的影响差异显著,以施1 000倍液浓度尿素的扦插苗新梢生长最快、叶片叶绿素含量最高。本研究为喜马拉雅樱花扦插育苗技术的深入研究提供了参考依据,对该樱花品种优质壮苗的繁育及推广应用具有重要意义。
In order to explore further soft cutting propagation characteristics of Himalayan cherry, a comparative study on the differences of rooting and survival of Himalayan cherry with other seven cherry blossom varieties was studied, and the effects of applying fertilizer on the young shoot elongationand and the chlorophyll content of leaves for cutting seedlings of Himalayan cherry were also testde. Results showed that there were significant differences among different cherry blossom varieties in rooting rate and survival rate, and Himalayan cherry cuttings occupied the highest rooting rate and survival rate, with 97.3% and 92.7% respectively, and had faster rooting process. Meanwhile, C. pseudocrasus 'Introrsa' had the lowest rooting rate of 46.0%, and C. campanulata 'Youkou' had the survival rate of 0. From the results of fertilizing experiments on cutting seedlings of Himalayan cherry, it was found that application of nitrogen fertilizer can promote young shoot elongation and improve the chlorophyll content of leaves. However, the different fertilization concentrations affected significantly the length of young shoots and chlorophyll content of leaves of cutting seedlings, and the 1 000 time liquid of urea showed the best effects on the young shoots elongation and leaf chlorophyll content for cutting seedlings. Results above can provide an important reference for the further research on cutting propagation techniques, and have important significance for cutting propagation and extension of high quality and strong seedlings of Himalayan cherry.
作者
高晨
朱建军
刘震
李秀芬
李水根
李记开
Gao Chen;Zhu Jianjun;Liu Zhen;Li Xiufen;Li Shuigen;Li Jikai(Forestry & Fruit Tree Research Institute,Shanghai Academy of Agricultural Sciences,Shanghai,201403;College of Forestry,Henan agricultureuniversity,Zhengzhou,450002)
出处
《分子植物育种》
CAS
CSCD
北大核心
2019年第15期5185-5190,共6页
Molecular Plant Breeding
基金
上海市种业发展项目(沪农科种字(2017)第1-6号)
上海市花卉产业技术体系(沪农科产字(2018)第8-02号)共同资助
关键词
喜马拉雅樱花
嫩枝扦插
繁殖特性
施肥
Himalayan cherry
Soft cutting
Reproductive characteristics
Fertilization
