不同因素对马尾松针叶基潜伏芽萌发的影响  

Effect of Different Factors on Germination of Pinus massoniana Dormant Buds

作　　者：朱亚艳 杨冰 徐嘉娟 周家维 王港 ZHU Yayan, YANG Bing, XUE Jiajuan, ZHOU Jiawei, WANG Gang(Guizhou Academy of Forestry, Guiyang, Guizhou 550005, China)

机构地区：[1]贵州省林业科学研究院,贵州贵阳550005

出　　处：《贵州农业科学》2018年第8期32-34,共3页Guizhou Agricultural Sciences

基　　金：贵州省基础研究计划项目"马尾松针叶基潜伏芽萌发机理研究"[黔科合基础(2017)1098];国家重点研发计划项目"马尾松菌根化育苗及促生作用"(2017YFD0600301)

摘　　要：为马尾松无性繁殖提供新材料,采用单因素试验研究树龄、修剪时间、枝条直径、修剪长度、截顶位置和外源激素等因素对马尾松针叶基潜伏芽萌发的影响。结果表明:马尾松针叶基潜伏芽萌发所需的时间与温度呈反相关关系,温度越高,萌发时间越短。萌发数量与树龄呈反相关关系,树龄越小,萌发的穗条数越多;与枝条直径呈极显著正相关,相关系数为0.354。不同浓度的IAA、GA3及6-BA处理后马尾松针叶基潜伏芽长成的穗条平均数量、长度和直径均高于对照。The effect of tree age, trimming time, scion diameter, trimming length, top-pruning position and exogenous hormone on germination of Pinus massoniana dormant buds was studied by a single-factor experiment to provide new materials for asexual reprodttction of P. massoniana. Result： The germination time of P. massoniana dormant buds is negatively related to temperature,that is the higher the temperature is,the shorter the germination time is. There is a negative correlation between germination amount of P.massoniana dormant buds and tree age,that is the smaller the tree age is, the more the germinated scion amount is. There is a significant positive correlation between tree age and scion diameter and the correlation coefficient is 0. 354. The average amount, length and diameter of scions germinated from P. massoniana dormant buds treated with different concentration of IAA, GA3 and 6-BA all are higher than GK.

关 键 词：马尾松 潜伏芽 萌发条件 无性繁殖 

分 类 号：S791.248[农业科学—林木遗传育种]