Arbuscular mycorrhizal inoculation enhances plant growth and changes root system morphology in micropropagated Annona cherimola Mill C. Azcón-Aguilar, IG Padilla, CL Encina, R. Azcón and JM Barea Agronomie, 16 10 (1996) 647-652 DOI: 10.1051/agro:19961009