Effect of Mxcorrization on Germination and Growth of Marigold

Species of the Tagetes genus are frequently used ornamentals, but it is also known that they have a nematocidal effect. It is important they have a well-developed root. Inoculation by the mycorrhizal fungi influences better development of the root, and consequently more exuberant plant development and earlier flowering. Seeds of Tagetes patula were sown in substrate inoculated with the vesicular-arbuscular mycorrhizal fungus Glomus mossae in two concentrations. This procedure produced positive effects on Tagetes compared with the control, especially in characteristics such as: number of developed leaves, flower buds and inflorescences.