Mycorrhizas are symbiotic associations that are formed between the roots of most plant species and soil fungi (Bagyaraj, 1984). Benefits of arbuscular mycorrhiza (AM) associations include improved nutrient uptake by fungi, extending their hyphae through the plant roots into the surrounding soil and transporting the nutrients directly into the plant. Numerous studies also suggests that uptake of water by plant roots can be enhanced when they are infected with AM fungi (Faber ey al., 1991). A study by Shamala (1999) showed AM also significantly promoted the growth of oil palm seedlings. However, not all species of AM are able to do this. Therefore, this article describes the necessary assessments for establishing the efficacy of AM based products in increasing the vegetative growth of oil palm.

Main Research: Shamala Sundram