接种AM菌剂对樟树幼苗生长效应的影响  

Effect of Arbuscular Mycorrhizal Inoculum on Growth of Cinnamomum camphora Seedlings

作　　者：吴长榜[1] 何跃军[1] 

机构地区：[1]贵州大学林学院,贵州贵阳550025

出　　处：《贵州农业科学》2011年第6期161-165,共5页Guizhou Agricultural Sciences

基　　金：国家自然科学基金项目(31000204);贵州省林业厅科研项目(2008-05);贵州省教育厅自然科学研究重点项目(2008005);国家科技支撑计划项目(2011BAC022B02)

摘　　要：为了解丛枝菌根真菌在野外环境中对植物生长的影响,对樟树(Cinnamomum camphora)幼苗进行AM菌剂接种试验,5个月后对樟树幼苗苗高、地径,根、茎、叶生物量,光合特征以及感病情况进行测定,探讨丛枝菌根真菌对樟树幼苗生长的影响。结果表明:接种组樟树幼苗的苗高、地径均有明显提高;根、茎、叶生物量分别是对照组的6.02、3.48和3.40倍;叶片叶绿素a、叶绿素b和总量分别较对照提高47.02%、43.61%和46.27%;净光合速率也较对照提高。对照组感病率约为接种组的6倍,对照组感病指数为接种组的13倍。Cinnamomum camphora seedlings were inoculated with arbuscular mycorrhizal inoculum to understand the effects of arbuscular mycorrhizal fungi in the field environment on growth of plants.The seedling height,ground diameter,biomass of root,stem and leaf and photosynthetic characteristics,disease index of Cinnamomum camphora seedlings were measured 5 months after the inoculation to study the influence of arbuscular mycorrhizal fungi on Cinnamomum camphora seedlings.The results showed that the height and ground diameter of seedlings increased significantly.The biomass of root,stem and leaf of inoculated seedlings was 6.02,3.48 and 3.40 times as much as the control group.Contents of chlorophyll a,chlorophyll b and total chlorophyll increased by 47.02%,43.61% and 46.27% respectively.The net photosynthesis rate of seedlings increased too.The ratio of disease was one-sixth as much as the control group,the disease index was one-thirteenth as much as the control group.

关 键 词：丛枝菌根真菌 樟树幼苗 生长效应 光合特征 

分 类 号：S792.23[农业科学—林木遗传育种]