3株外生菌根真菌对红松苗木的接种效应

Inoculation Effects of Three Ectomycorrhizal Fungi on Pinus koraiensis Seedlings

采用盆栽法研究了细粉绒牛肝菌(Xerocomus pulverulentus)、黄绿蜜环菌(Armillaria luteovirens)和灰鹅膏菌(Amanita vaginata)3种外生菌根真菌对红松苗木的接种效应。结果表明:菌株X.pulverulentus能够与红松苗木形成良好的菌根共生体,侵染率高达61.5%,能够显著提高红松的苗高、地径和干生物量,菌根贡献率分别是50.39%、40%和69.94%;X.pulverulentus能够显著提高苗木根际土壤磷酸酶的活性,积极促进土壤全磷转化为速效磷,从而提高根际土壤中速效磷的含量。X.pulverulentus菌株对红松菌根化苗木培育具有重要的应用潜力。

Inoculation effects of three ectomycorrhizal fungi (Xerocomus pulverulentus ,Armillaria luteovirens &Amanita vaginata )on Pinus koraiensis seedlings were studied by adopting pot-culture method.Result shows that X .Pulverulentus can form the mycorrhizal symbionts with Pinus koraiensis seedlings,which could improve the seedling height,ground diameter and dry biomass of Pinus koraiensis ;the colonization percentage reached by 61.5%;three mycorrhizal contribution rate is 50.39%,40% & 69.94%,respectively.X .pulverulentus can signifi-cantly improve the activity of phosphatase of soil in the rhizosphere soil,and promote the transformation of total phosphorus into available phosphorus activity,so as to improve the content of available phosphorus in the rhizo-sphere soil.The above result shows that the fungus of X .Pulverulentus have certain potential application of mycor-rhizal seedling of Pinus koraiensis .