不同生长调节剂对紫叶李嫩枝扦插生根的影响
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摘要
为研究紫叶李嫩枝扦插的影响因素,从生长调节剂种类(IBA、NAA、6-BA)、浓度(100mg/L、200mg/L、400mg/L)及处理时间(0.5h、1.0h、2.0h)3个方面进行正交试验(共9个处理),对插穗的生根率、生根数量及生根长度的差异进行分析。研究结果表明:影响紫叶李生根最大的因素是生长调节剂的种类,浓度次之,处理时间影响最小。在3种生长调节剂IBA、NAA、6-BA中,对紫叶李扦插生根的促进作用最大的是IBA,平均生根率最高可达79.33%,其次为NAA,最低为6-BA;不同浓度生长调节剂对紫叶李嫩枝扦插生根的综合促进作用最大为200mg/L,其次为100mg/L,最低为400mg/L;最有利于紫叶李嫩枝插穗生根的处理时间是2.0h,其次为0.5h,最低为1.0h。综上可知:紫叶李嫩枝扦插最佳组合是200mg/L的IBA浸泡处理插穗2.0h。
In order to study the influence factors of Prunus cerasifera f.atropurpureacutting,orthogonal experiment with the growth regulator type(IBA,NAA,6-BA),concentration(100 mg/L,200 mg/L,400 mg/L)and processing time(0.5 h,1.0 h,2.0 h)was carried out in three aspects:The cuttings rooting rate,root number and root length difference were analyzed.It was found that the greatest impact factor on Prunuscerasiferaf.atropurpurearating was the type of exogenous regulatory substances,followed by concentration,with the minimal treatment time through the orthogonal experiment.Among the three growth regulators IBA,NAA and 6-BA,IBA had the greatest promoting effect on Prunus cerasiferaf.atropurpurea cutting.The average rooting rate was 79.33%,followed by NAA and 6-BA;The comprehensive promotion effect of different concentration of growth regulator on Prunus cerasifera f.atropurpurea cutting was up to 200 mg/L,followed by100 mg/L and 400 mg/L;The most favorable treatment time was 2.0 h,followed by 0.5 h,and lowest was 1.0 h.In summary,the best combination of the experimental study screened out in favor Prunus cerasifera f.atropurpurea softwood cutting propagation is 200 mg/L IBA treated cuttings soaking 2.0 h.
In order to study the influence factors of Prunus cerasifera f.atropurpureacutting,orthogonal experiment with the growth regulator type(IBA,NAA,6-BA),concentration(100 mg/L,200 mg/L,400 mg/L)and processing time(0.5 h,1.0 h,2.0 h)was carried out in three aspects:The cuttings rooting rate,root number and root length difference were analyzed.It was found that the greatest impact factor on Prunuscerasiferaf.atropurpurearating was the type of exogenous regulatory substances,followed by concentration,with the minimal treatment time through the orthogonal experiment.Among the three growth regulators IBA,NAA and 6-BA,IBA had the greatest promoting effect on Prunus cerasiferaf.atropurpurea cutting.The average rooting rate was 79.33%,followed by NAA and 6-BA;The comprehensive promotion effect of different concentration of growth regulator on Prunus cerasifera f.atropurpurea cutting was up to 200 mg/L,followed by100 mg/L and 400 mg/L;The most favorable treatment time was 2.0 h,followed by 0.5 h,and lowest was 1.0 h.In summary,the best combination of the experimental study screened out in favor Prunus cerasifera f.atropurpurea softwood cutting propagation is 200 mg/L IBA treated cuttings soaking 2.0 h.
引文
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[2]欧阳芳群,付国赞,王军辉,等.欧洲云杉扦插生根进程中内源激素和多酚类物质变化[J].林业科学,2015,51(3):155-162.
[3]李庆卫.金叶锦熟黄杨、金叶侧柏扦插繁殖与离体快繁技术研究[D].北京:北京林业大学,2000.
[4]徐福慧.不同施肥处理对紫叶李生长生理特性的影响[D].晋中:山西农业大学,2015.
[5]邓建军,李芳东,乔杰,等.白花泡桐优树嫩枝扦插幼化技术[J].东北林业大学学报,2011,39(8):5-6.
[6]沈琪.榉树扦插繁殖与生根机理研究[D].南京:南京林业大学,2013.
[7]李福寿.彩叶植物在城市园林绿化中的应用[J].林业调查规划,2004(S1):173-174.
[8]王淑君.浅析彩叶植物在城市园林绿化中的应用[J].规划与设计,2013(5):55-56.
[9]余发新,刘腾云,朱祺,等.杂种马褂木扦插繁殖技术研究——Ⅱ插穗粗细及环境条件与生根的关系[J].江西科学,2006(1):21-25.
[10]钟智群,曾宪斌,陈德云.邓恩桉扦插育苗试验初报[J].湖南林业科技,2006,33(6):44-45.
[11]孙冬伟,吴泽南,王锡宽,等.香花槐嫩枝扦插育苗技术[J].林业科技开发,2003,17(4):54.
[12]成铁龙,施季森.中国枫香嫩枝扦插技术[J].林业科技开发,2003,17(1):36-37.
[13]刘云强.椴树扦插繁殖技术及生根机理的研究[D].保定:河北农业大学,2004.
[14]潘健.三种柃木属植物扦插生根机理研究究[D].南京:南京林业大学,2007.
[15]卓丽环,陈龙青.园林树木学[M].北京:中国农业出版社,2004:207.
[16]朱金方,刘京涛,陆兆华,等.盐胁迫对中国柽柳幼苗生理特性的影响[J].生态学报,2015,35(15):5140-5146.