| We have investigated the effects of phosphate fertilization and inoculation with isolates of arbuscular mycorrhizal fungi Scutellospora heterogama SCT120E, Gigaspora decipiens SCT304A, Acaulospora koskei SCT400A, Entrophospora colombiana SCT115, and an assemblage (Mix) of all four isolates on growth, development and oleoresin production of micropropagated Zingiber officinale. After 120 and 210 d of growth, the Mix and phosphorus addition significantly increased shoot height relative to control plants. Phosphorus addition was the only treatment resulting in significantly large shoot dry biomass relative to control after 120 d. No statistical differences were observed between treatments for shoot dry biomass after 210 d and for fine and coarse root biomass... |
