Response of the Leek (Allium porrum)-Mycorrhizal Fungus Symbiosis to Cutting Levels, Light Exposure and Seedling Density

This work aims to assess the leek-arbuscular fungus symbiosis response effect of cutting and light exposure on one hand, impact seedling density this other hand. Allium Porrum was grown in a container two different trials. Four species arbuscular mycorrhizal fungi, Glomus hoi, Scutellospora gregaria, Rhizophagus intraradices Gigaspora margarita were used constitute inoculum. After 150 days growth inoculation, series cuts made aerial part (0% = zero cut, 50% half 100% whole cut). Plants that had undergone these treatments placed shade sun for 30 days. The leek per bag varied by order 1, 2, 3 4 plant (s) pocket test. Results showed 0% cut shade, vesicle occurrence decreases from 83.33% 52.22%, 90% 25.5% shade. On there is significant increase intra-root spores complete compared levels cuts. For extra-root sporulation, under light, have negative weak (from -11 -3%) while absence positive effects +16 +61%). Regarding density, best root colonization (90%) biomass production (14 g) are obtained with three plants pot, but it rather pot sporulation higher (153 spores/g). Variation level significantly affects development fungi.