Ectomycorrhizal inoculation of Douglas-fir transplanted container seedlings with commercially produced inoculum |
| |
| Authors: | Ling-Ling L Hung James M Trappe |
| |
| Institution: | (1) Department of Forest Science, Oregon State University, 97331 Corvallis, Oregon;(2) Present address: Soil Science Department, University of Florida, 32611 Gainesville, Florida;(3) United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, Forestry Sciences Laboratory, 97331 Corvallis, Oregon |
| |
| Abstract: | Commercially produced vegetative inocula of Laccaria laccata and Hebeloma crustuliniforme successfully formed ectomycorrhizae with Douglas-fir transplanted container (plug+1) seedlings. After 4.5 months in containers, 83% and 90%, respectively, of short roots were mycorrhizal. L. laccata- or H. crustuliniforme-inoculated seedlings had significantly more mycorrhizal and total short roots than Pisolithus tinctorius-inoculated (4% mycorrhizal root tips) or uninoculated control seedlings. No significant differences were detected in seedling growth at the end of the container phase.After transplantation and growth in nursery beds for 17 months, mean new short root colonization of all seedlings was 80%. H. crustuliniforme persisted as a dominant mycorrhizal fungus on seedlings initially inoculated with this fungus. L. laccata-inoculated seedlings had 40% of their short roots colonized by L. laccata and another 40% by native fungi Rhizopogon and Thelephora spp. All mycorrhizae of control seedlings and those inoculated with P. tinctorius were formed by fungi native to the nusery beds. A significant fungal treatment effect was detected for shoot height only. Control seedlings were significantly taller than L. laccata-inoculated seedlings after transplanting.This article is part of senior author's thesis in partial fulfillment of the Ph.D. degree in the Department of Forest Science at Oregon State University, Corvallis. |
| |
| Keywords: | Laccaria laccata Hebeloma crustuliniforme Pisolithus tinctorius Rhizopogon Thelephora transplanting short roots |
| 本文献已被 SpringerLink 等数据库收录！ |
|
