Response of Potted-Grown Tomato (Lycopersicon esculentum Mill var. Lorely F1) to AMF Inoculation with Organic and Inorganic Fertilizer

摘要

The study was mainly aimed to investigated the response of potted-grown tomato (Lycopersicon esculentum Mill var. lorely ?) to inoculation with arbuscular mycorrhizal fungi (AMF) as well as the application of organic (0, 12.5 and 25 ton ha"') and inorganic fertilizers (0, 625, 1250 and 1875 kg ha"') under glasshouse conditions. This experiment was carried out during the 2011/2012 growing season at the Agricultural Research Station, Faculty of Agriculture, Mu'tah University in the Southern part of Jordan. The experimental treatments were arranged as a factorial in a complete randomized block design (CRBD) with 3 replications for each treatment. Results indicated that vegetative growth parameters viz., plant height, root length, leaf area and shoot dry weight at the flowering stage (50 days post planting) were increased with increasing the level of both inorganic and organic fertilizers regardless of mycorrhiza status. At the beginning of the harvesting time (80 days post planting), all vegetative parameters tested (shoot and root length, leaf area and shoot dry weight) were not significantly affected by the interaction between the fertilizer and the fungus. Furthermore, the main effects of fertilizer and fungus on growth parameters at both growingstages tested (50 and 80 days after planting) were significantly increased with increasing fertilizer level and mycorrhizal inoculation. Root colonization by mycorrhizal fungi in inoculated treatment was high, especially at low level of organic and chemical fertilizers. The highest level of inorganic fertilizer significantly reduced the root colonization; meanwhile, organic fertilizer exhibit non-significant effect. Inoculation tomato plants with mycorrhiza had pronounced significant effect on root colonization.