Effectiveness of mycorrhizal association in revegetation

概要

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Selection of effective ECM (ectomycorrhizal) fungi are very important for inoculation and infection to pioneer trees. The candidates of effective ECM fungi for revegetation collected at volcanic and at poor granite sites in Japan were as follows; Pisolithus tinctorius f. tinctorius, P. tinctorius f. turgidus, P. tinctorius f. pisocarpius, Astraeus hygrometrics, Laccaria amethystea. Particularly, the elementary species P. tinctorius showed the widest host range and was the most common candidate of all. This fungus was associated with Pinus densiflora, Pinus Thunbergii, Betula Ermani, Betula Maximowiczii, Alnus firma, Larix leptolepis and probably Quercus serrata. Above all the association with Larix and Betula trees appeared to be efficient for the revegetation in a cool temperate zone. Basidiospore and vegetative inocula of Pisolithus were effective for young seedlings and especially 1-year-old seedlings in volcano and granite stands. Introduction of ECM fungi to each site brought about good results for enhanced survival rate and increased growth of seedlings, especially just after sprouting, which were further promoted by using a mulching sheet made of non-woven polyester fiber.
日本農業気象学会の論文