AM真菌对郁金香生长的影响  

Effects of AM Fungi on the Growth of Tulipa Heterophylla

作　　者：孙龙燕 徐萌[2] 刘宁[3] 郭绍霞[1,2] 

机构地区：[1]青岛农业大学菌根生物技术研究所,山东青岛266109 [2]青岛农业大学园林与林学院 [3]青岛农业大学艺术学院

出　　处：《青岛农业大学学报（自然科学版）》2014年第4期242-245,265,共5页Journal of Qingdao Agricultural University(Natural Science)

基　　金：青岛市科技计划基础研究项目(12-1-4-5-(4)-jch);青岛农业大学研究生创新计划资助项目(QYC201316)

摘　　要：球根花卉郁金香(Tulipa heterophylla)对菌根依赖性较大。为筛选促进该花卉生长的高效菌剂,作者于盆栽条件下试验了丛枝菌根(AM)真菌Acaulospora laevis(AC1)、Acaulospora appendicula(AC2)及Acaulospora laevis、Acaulospora appendicula和Acaulospora colossica(AC3)的混合菌种对郁金香幼苗生长的影响。结果表明,接种AM真菌的郁金香叶片数目、株高、地径、地上鲜物质质量、地上干物质质量、根平均直径、根系总体积、根系长度、叶表面积、超氧化物歧化酶、过氧化物酶、过氧化氢酶、叶片叶绿素a、叶绿素b和总叶绿素含量、叶片N、P、K含量高于对照,而丙二醛含量比对照降低,其中接种混合菌种处理与对照差异显著,各指标分别提高了90%、45%、85%、45%、38%、78%、19%、84%、71%、63%、67%、5%、18%、9%、46%、100%、15%,丙二醛比对照降低21%。结论认为供试的3种AM真菌混合菌种促进郁金香幼苗生长的效应最大。Tulipa heterophylla has great dependence on mycorrhizas.In order to select the efficient inocu-lants to promote the growth of the flower plants,the present author tested the effects of arbuscular my-corrhizal（AM）fungi Acaulospora laevis,Acaulospora appendicula and the mixed inocula with Acaulos-pora laevis,Acaulospora appendicula and Acaulospora colossicaon seedling growth of T.heterophylla under pot conditions.The results showed that leaf number,plant height,ground diameter,shoot fresh weight,shoot dry weight,root average diameter,total root volume,root length,leaf surface area,SOD, POD,CAT,chlorophyll a,chlorophyll b and total chlorophyll content,leaf N,P,K was higher than that of the control and the content of MDA was lower than that of control,the treatment with the mixed inocu-la showing the best effects,with increasing by 90%,45%,85%,45%,38%,78%,19%,84%,71%, 63%,67%,5%,18%,9%,46%,100%,15% respectively,and 21% for MDA lower than the control. It was concluded that the mixed inoclua with the 3 species of AM fungi gave the best benefits on seedling growth of T.heterophylla.

关 键 词：郁金香 丛枝菌根真菌 矿质营养 生长 

分 类 号：S682.2[农业科学—观赏园艺]