%0 Journal Article
%T Response of soybean plants to two inoculation methods with arbuscular mycorrhizal fungus of Glomus sp. strain R-10 under field condition
%A Katsuki Adachi
%A Takayuki Suzuki
%A Takuya Koyama
%J Plant Production Science
%D 2019
%R https://doi.org/10.1080/1343943X.2018.1548287
%X ABSTRACT Inoculation of arbuscular mycorrhizal (AM) fungi has a great potential to reduce input of phosphorus fertilizer. In this study, we tested the hypothesis that transplanting of pre-inoculated plants (pre-inoculation) with AM fungal inoculum Glomus sp. strain R-10 (R-10) is more effective for increasing AM fungal colonization and soybean yield than placing R-10 inoculum into field soil (direct inoculation). We cultivated pre-inoculated and direct inoculated plants with and without R-10 in the same field. On the contrary to the hypothesis, hyphal colonization was increased by direct inoculation, but decreased by pre-inoculation in an early growth stage. Shoot phosphorus concentration, shoot dry weight, and yield also showed the same trend as the hyphal colonization. These results indicated that pre-inoculation with R-10 would be less effective for increasing AM fungal colonization and yield than direct inoculation. It may be due to a colonization strategy of R-10 and short duration for establishment of seedling. Abbreviations: AM: arbuscular mycorrhizal; AMF: arbuscular mycorrhizal fungus; G: Glomus; Gi: Gigaspora; P: phosphorus
%U https://www.tandfonline.com/doi/full/10.1080/1343943X.2018.1548287