摘要
以生长健壮的蓝花藤枝条为材料,探究不同激素种类、浓度、插穗木质化程度对蓝花藤扦插生根的影响。结果表明:在供试的3种外源激素中,以IAA总体效果最好,NAA次之,IBA最差,在试验的9个处理组合中,综合生根率、不定根数量和根长3项指标,以1000 mg/L IAA处理的效果最佳。插条木质化程度对蓝花藤扦插影响显著,木质化枝条生根率最高,其次为半木质化枝条,嫩枝扦插生根率最差。指出了不同激素种类及浓度对蓝花藤扦插有较大的影响,中高浓度有利于促进插穗生根,浓度过高会抑制插穗生长。综合分析得出,1000 mg/L IAA处理为蓝花藤扦插繁殖最适溶液,插穗宜选择木质化枝条。
Using robust branches of Petrea volubilis as materials,this paper investigates the effects of different hormone types,concentrations,and degree of lignification of cuttings on the rooting of Petrea volubilis cuttings.The results show that among three exogenous hormones tested,IAA had the best overall effect,followed by NAA,and IBA had the worst effect.Among the nine treatment combinations in the experiment,1000 mg/L IAA had the best effect in terms of comprehensive rooting rate,number of adventitious roots,and root length.The degree of lignification of cuttings has a significant impact on the rooting rate of Petrea volubilis cuttings.Lignified branches have the highest rooting rate,followed by semi lignified branches,and tender branch cuttings have the worst rooting rate.It points out that different hormone types and concentrations have a significant impact on the cutting propagation of Petrea volubilis.Medium to high concentrations is beneficial for promoting rooting of cuttings,while high concentrations can inhibit growth.After comprehensive analysis,it is believed that 1000 mg/L IAA is the most suitable solution for Petrea volubilis cutting propagation,and woody branches should be selected for cuttings.
作者
赵萌
王熙
张瑜琪
宋姝茜
于晓雷
成雅京
Zhao Meng;Wang Xi;Zhang Yuqi;Song Shuqian;Yu Xiaolei;Cheng Yajing(Beijing Laboratory of Urban and Rural Ecological Environment,Beijing Floriculture Engineering Technology Research Center,National Botanical Garden(North Garden),Beijing 100093,China)
出处
《绿色科技》
2024年第13期75-78,共4页
Journal of Green Science and Technology
关键词
蓝花藤
激素
扦插
生根率
Petrea volubilis
hormones
cuttings
rooting rate
