不同处理对春云实扦插生根的影响  

Effect of Different Treatment on Rooting of Caesalpinia vernalis Cuttings

作　　者：叶林妹 陈友吾[2] 沈建军[2] 胡传久[2] 杜国坚[2] 宋其岩[2] YE Lin-mei;CHEN You-wu;SHEN Jian-jun;HU Chuan-jiu;DU Guo-jian;SONG Qi-yan(Qingtian Forestry Bureau of Zhejiang,Qingtian 323900,China;Zhejiang Academy of Forestry,Hangzhou 310023,China)

机构地区：[1]浙江省青田县林业局,浙江青田323900 [2]浙江省林业科学研究院,浙江杭州310023

出　　处：《浙江林业科技》2020年第4期78-82,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省科研厅省属科研院所专项项目(2016F30012,2020F1065-6)。

摘　　要：为了获得春云实Caesalpinia vernalis适宜的扦插繁殖方法,以春云实当年生半木质化嫩枝和1年生木质化枝条为试验材料进行不同扦插枝条试验,并分别以基质类型(河沙,红壤,泥炭∶珍珠岩1∶1)、插穗长度(5~10 cm,>10~15 cm,>15 cm)和ABT1生根粉浓度(50 mg·kg^-1,100 mg·kg^-1,200 mg·kg^-1)为试验因素进行春云实扦插正交试验。结果表明:春云实适合采用1年生木质化枝条进行春季扦插;生根粉浓度和插穗长度对扦插后各指标的影响均未达到显著水平,基质类型对扦插生根率和不定根长度的影响达到显著水平(P<0.05)。综合考虑,春云实扦插宜在春季选取10~15 cm长度1年生木质化枝条为插穗,于100 mg·kg^-1的ABT1生根粉中浸泡1 h,再扦插于消毒后的河沙基质,可获得较好的生根效果,其生根率可达71.85%。By the end of September 2018,half year softwood were harvested from 3-year Caesalpinia vernalis,and 1-year branches were cut in the early March of 2019.Orthogonal experiments were conducted on those cuttings with different substrate type,different cutting length and different ABT1 concentration.90 days later,investigations on rooting of different treated cuttings showed that 1-year lignified branch had better rooting effect for cutting in the spring.Different concentration of ABT1 and cutting length had no evident effect on rooting of cuttings.But different substrates had great effect on rooting rate and length of adventitious root(P<0.05).The experiments demonstrated that 1-year lignified cuttings with length of>10-15 cm,soaked in 100 mg·kg^-1 of ABT1 for 1 hour,in river sand in the spring had the best rooting rate of 71.85%.

关 键 词：春云实 扦插 基质 插穗长度 生根粉 

分 类 号：S688[农业科学—观赏园艺]