Effect of simulated acid rain on mycorrhizal infection ofPinus strobusL.

✍ Scribed by H. F. Stroo; Martin Alexander

• Publisher: Springer Netherlands
• Year: 1985
• Tongue: English
• Weight: 482 KB
• Volume: 25
• Category: Article
• ISSN: 0049-6979
• DOI: 10.1007/bf00159629

✦ Synopsis

Mycorrhizai infection but not growth of white pine seedlings was reduced by application of simulated rain at pH 3.5 at 3 times ambient rates to plants grown in steamed Mardin soil inoculated with Pisolithus tinctorius. In unsteamed Mardin soil, the simulated acid rain at 3 times ambient rates had no effect on rnycorrhizal infection or growth of pine seedlings if the rain was applied to the plants and soil or to only the soil before planting, except that nitrate-containing acid rain increased growth, infection and N content. In limed Mardin soil, the simulated acid rain reduced mycorrhizal infection if applied to the plants and soil as the seedlings were growing but not if applied to the soil before planting. Application of pH 3.5 rain at ambient rates had no detectable influence on mycorrhizal infection in 6 of 9 soils tested, but it stimulated infee, tion in 3 soils if the simulated rain contained only sulfate and in 1 soil if it had both sulfate and nitrate.