Formation of 'Pisolithus' Ectomycorrhizae on Loblolly Pine Seedlings with Spore Pellet Inoculum Applied at Different Times

摘要

Pt spore pellets applied at 4.05 g/sq m or 8.10 g/sq m at sowing and the highest rate in May produced effective Pt indices (Pt index > 50) by lifting time. Other dates of application were ineffective (Pt index < 50) due to competition for short roots from native spore inocula.