不同浓度NAA和IBA对八仙花‘无尽夏’扦插育苗的影响  

Effects of different concentrations of NAA and IBA on cutting seedling raising of Hydrangea macrophylla Endless Summer

作　　者：武文韬 刘斌 张云 王靖涵 秦菲 高青海 张雪平 刘国祥 葛伟强 贾双双 WU Wentao;LIU Bin;ZHANG Yun;WANG Jinghan;QIN Fei;GAO Qinghai;ZHANG Xueping;LIU Guoxiang;GE Weiqiang;JIA Shuangshuang(College of Agriculture,Anhui Science and Technology University,Fengyang 233100,China)

机构地区：[1]安徽科技学院农学院,安徽凤阳233100

出　　处：《安徽科技学院学报》2024年第5期15-20,共6页Journal of Anhui Science and Technology University

基　　金：安徽省高校自然科学研究项目(KJ2017A514);安徽科技学院自然科学重点项目(2021zrzd10);安徽科技学院交叉学科项目(XK-XJJC002)。

摘　　要：目的:探究不同质量浓度NAA及IBA对八仙花‘无尽夏’扦插育苗的影响。方法:以椰糠为扦插基质,以当年生八仙花‘无尽夏’枝条为试材,分别用0(CK)、100、200、300、500、1000 mg/Lα-萘乙酸(NAA)和吲哚丁酸(IBA)进行扦插育苗,探究其对八仙花插穗生长指标及生理特性的影响。结果:100 mg/L NAA与200 mg/L IBA均能显著加快八仙花插穗生根与成活,同时促进扦插幼苗的生长发育,SOD、POD、CAT等保护酶代谢稳定,利于维持质膜透性;当NAA质量浓度≥200 mg/L、IBA质量浓度≥300 mg/L时,显著抑制并延缓八仙花插穗生根,导致成活率降低,破坏抗氧化酶系统平衡,细胞膜损伤加剧,使得叶绿素含量降低,影响其正常生长发育。结论:促进八仙花扦插成活与生长的最适宜质量浓度为100 mg/L NAA与200 mg/L IBA,二者效果差异不大,且高浓度NAA与IBA处理显著抑制八仙花扦插苗生长发育及代谢平衡;若考虑经济成本,建议实际生产中选择100 mg/L NAA。Objective:To explore the effects of different concentrations of NAA and IBA on cutting seedling raising of Hydrangea macrophylla.Methods:Using coconut bran as cutting medium and the branches of Hydrangea macrophylla Endless Summer as test material,the cutting seedling experiments were respectively carried out withα-Naphthaleneacetic acid(NAA)and 3-indolebutyric acid(IBA)of 0(CK),100,200,300,500,1000 mg/L on the earliest rooting days.The growth indexes and physiological characteristics of Hydrangea macrophylla cuttings were investigated.Results:NAA at 100 mg/L and IBA at 200 mg/L could significantly accelerate the rooting and survival of Hydrangea macrophylla cuttings and promote the growth and development of cutting seedlings.The metabolism of protective enzymes such as SOD,POD,CAT was stable and the permeability of plasma membrane was maintained.When NAA concentration≥200 mg/L and IBA concentration≥300 mg/L,the rooting of Hydrangea macrophylla cuttings was inhibited and delayed significantly,which resulted in survival rate,balance of antioxidant enzyme system,cell membrane damage aggravated,and chlorophyll content affected its normal growth and development.Conclusion:The optimum concentrations of NAA and IBA were 100 mg/L and 200 mg/L respectively,and the difference in effect between the two was not significant.The high concentrations of NAA and IBA significantly inhibited the growth and metabolic balance of Hydrangea macrophylla cuttings.If the economic cost was considered,it was recommended to choose 100 mg/L of NAA.

关 键 词：八仙花 扦插育苗 Α-萘乙酸 吲哚丁酸 

分 类 号：S682.39[农业科学—观赏园艺]