药剂处理对红松截顶苗木不定芽发生的影响  

The Effect of Chemical Treatment on Adventitious Bud Formation in Top Pruned Seedlings of Pinus koraiensis

作　　者：于雪 黄河 王静[1,2] 董博文 张鹏 YU Xue;HUANG He;WANG Jing;DONG Bowen;ZHANG Peng(Key Laboratory of Sustainable Forest Ecosystem Management,Ministry of Education,College of Forestry,Northeast Forestry Uni-versity,Harbin 150040,China;State Forestry and Grassland Administration Engineering Technology Research Center of Korean Pine,Harbin 150040,China)

机构地区：[1]东北林业大学林学院,森林生态系统可持续经营教育部重点实验室,哈尔滨150040 [2]国家林业草原红松工程技术研究中心,哈尔滨150040

出　　处：《森林工程》2024年第5期30-38,共9页Forest Engineering

基　　金：吉林省科技厅中青年科技创新创业卓越人才项目(20230508006RC);黑龙江省重点研发计划项目(GA21B005)。

摘　　要：为探究药剂处理对红松截顶苗木不定芽发生的影响,以5年生红松裸根苗为试验材料,于生长季初期统一截顶后,每15 d采用不同的药剂赤霉素(GA_(3))(200、500、1000 mg/L)、6-苄氨基腺嘌呤(6-BA)(100、300、500 mg/L)、KMnO_(4)(0.1%、0.2%、0.3%)对苗木进行喷施处理,以喷施清水处理为对照,调查经不同药剂处理红松截顶苗木的不定芽发生情况。结果表明,药剂处理(除1000 mg/L GA_(3)和0.1%KMnO_(4)外)提高了红松截顶苗木不定芽的发生率,与对照相比,萌芽株率提高了5.72%~48.58%,萌条数提高了15.37%~175.94%。GA_(3)促进红松截顶苗木的适宜质量浓度为200 mg/L,该处理可提高萌芽株率34.28%,萌条数提高了33.63%;6-BA促进红松截顶苗木的适宜质量浓度为500 mg/L,该处理可提高萌芽株率48.58%,萌条数提高了175.94%;KMnO_(4)促进红松截顶苗木的适宜质量浓度为0.2%,该处理可提高萌芽株率42.85%,萌条数提高了95.18%。采用500 mg/L 6-BA对红松截顶苗木进行处理可以获得促进不定芽发生的较好效果。In order to explore the effect of chemical treatment on adventitious bud formation of P.koraiensis top pruned seed⁃lings,5-year-old P.koraiensis bare root seedlings were used as experimental materials.After top pruning at the beginning of the grow⁃ing season,different chemicals were sprayed every 15 days(GA_(3)(200,500,1000 mg/L),6-BA(100,300,500 mg/L),KMnO_(4)(0.1%,0.2%,0.3%)).Using spray water treatment as a control,the formation of adventitious buds of P.koraiensis seedlings treated with different chemicals was investigated.The results showed that the chemical treatment(except 1000 mg/L GA_(3)and 0.1%KMnO_(4))increased the incidence of adventitious buds of P.Koraiensis top pruned seedlings.Compared with the control,the sprouting rate increased by 5.72%to 48.58%,and the number of sprouting strip increased by 15.37%to 175.94%.The suitable concentration of GA_(3)to promote P.koraiensis top pruned seedlings was 200 mg/L,which can increase the sprouting rate by 34.28%,and the num⁃ber of sprouting strip by 33.63%.The suitable concentration of 6-BA to promote P.koraiensis truncated seedlings was 500 mg/L,which can increase the sprouting rate by 48.58%,and the number of sprouting strip by 175.94%.The suitable concentration of KMnO_(4)to promote P.koraiensis top pruned seedlings was 0.2%,which can increase the sprouting rate by 42.85%,and the number of sprouting strip by 95.18%.The better effect of promoting adventitious bud formation can be obtained by using 500mg/L 6-BA to treat P.koraiensis top pruned seedlings.

关 键 词：红松 截顶 药剂处理 不定芽发生 萌芽位置 

分 类 号：S722.81[农业科学—林木遗传育种]