文献类型：期刊文献

中文题名：采穗部位、基质和生长调节剂对崖柏扦插的影响

英文题名：Effects of Cutting Position,Substrate and Growth Regulator on Cutting Propagation of Thuja sutchuenensis

作者：马凡强[1] 杨泉[2] 郭泉水[1] 张光箭[2] 秦爱丽[1] 吴浩[2] 蔡松余[2] 王雷[2]

第一作者：马凡强

机构：[1]中国林业科学研究院森林生态环境与自然保护研究所,国家林业和草原局森林生态环境重点实验室,北京100091;[2]重庆雪宝山国家级自然保护区管理事务中心,重庆404500

年份：2023

卷号：39

期号：3

起止页码：40-48

中文期刊名：森林工程

外文期刊名：Forest Engineering

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：国家林业和草原局野生动植物保护专项(2130211-21-301/109);2020年重庆市级财政极小种群野生植物拯救保护项目(91208-2020);2021年重庆市级财政极小种群野生植物拯救保护项目(91208-2021)。

语种：中文

中文关键词：扦插;采穗部位;生长调节剂;基质;正交试验;崖柏

外文关键词：Cuttage;cutting position;growth regulator;substrate;orthogonal experiment;Thuja sutchuenensis

分类号：S791.37;S723.132.1

摘要：为研究采穗部位、基质、生长调节剂质量浓度和浸泡时间对崖柏插穗生根率和根系质量的影响,寻求提高插穗生根率和根系质量的最佳处理方案,采用正交表L9(34),以基质、采穗部位和生长调节剂为因素,各因素下设3个水平,基质用草炭土-蛭石-珍珠岩、菌渣-蛭石-珍珠岩和炭化稻壳-蛭石-珍珠岩,穗条采自母树树冠的下部、中部和上部,生长调节剂处理用生根粉ABT-1质量浓度为125、500、1000 mg/L,浸泡时间为8 h、2 h、2 min,进行扦插试验。插后210 d调查插穗生根率和根系质量,并进行统计分析。结果表明,在草炭土-蛭石-珍珠岩、菌渣-蛭石-珍珠岩和炭化稻壳-蛭石-珍珠岩3种混合基质上,插穗平均生根率分别为90%、88%和41%,前二者差异不显著(P>0.05),但与后者差异显著(P<0.05);一级不定根数量后二者差异极显著(P<0.01),二级不定根数量前二者与后者差异极显著(P<0.01),最长根的根长、根径、根系生物量前者与后二者差异极显著(P<0.01);采穗部位及生长调节剂浓度和浸泡时间的影响不明显。总体上,采穗部位、基质、生长调节剂质量浓度和浸泡时间等对崖柏插穗的生根率和根系质量都有一定的影响,其中基质影响较大,采穗部位和生长调节剂影响较小。因此提高崖柏插穗生根率和根系质量的最佳处理方案为用草炭土(或菌渣)-蛭石-珍珠岩配制基质,用质量浓度为1000 mg/L的生根粉ABT-1浸泡切口2 min,从母树树冠下部采集插穗。
In order to assess the effects of cutting position,substrate,growth regulator on rooting rate and quality of cuttings of Thuja sutchuenensis Franch.,and to find the optimal treatment scheme to improve the rooting rate and root quality of cuttings,the orthogonal table L 9(34)was used to carry out the cutting experiment with the factors of substrates(peat-vermiculite-perlite,edible fungus residue-vermiculite-perlite,and carbonized rice husk-vermiculite-perlite,three mixed substrates were prepared according to the volume ratio of 1∶1∶1),positions(upper,middle and lower part of the canopy of T.sutchuenensis),and treatments of growth regulator(growth regulator ABT-1 with concentrations of 125,500 and 1000 mg/L,and soaking time of 8 h,2 h and 2 min,respectively).The rooting rate and root quality of cuttings were investigated after 210 days.The results showed that the rooting rates of cuttings were 90%,88%and 41%on peat-perlite-vermiculite,edible fungus residue-perlite-vermiculite and carbonized rice husk-perlite-vermiculite,respectively,with variance analysis showed a significant difference(P<0.05).Analysis of variance also showed that the number of primary and secondary adventitious roots,the longest root length and diameter,and root biomass of cuttings were significantly different(P<0.05)on different substrates.There was no significant difference in rooting rate and root development indexes of cuttings from different positions and growth regulator treatments.In general,position of cuttings,substrate,growth regulator treatment all had certain effects on the rooting rate and development of cuttings of T.sutchuenensis,but the influence of the substrate is greater,and the cutting position and growth regulators treatment have less.Therefore,the best treatment to improve the rooting rate and root quality of cuttings of T.sutchuenensis was to collect them from the lower part of the canopy of the mother tree,soak the cuttings in ABT-1 solution at a concentration of 1000 mg/L for 2 min,and use the mixed substrate of peat(edible fungus residue)-perlite-vermiculite.