The Effect of Foliar Application of Amino Acids and Symbiosis with Mycorrhiza Species on the Characteristics of Pot Marigold ‎‎(Calendula officinalis L.)‎

In order to investigate the effects of foliar application of amino acids fertilization and mycorrhizal fungi symbiosis on quantitative and qualitative characteristics of Calendula officinalis L., a factorial layout has been conducted, based on a randomized complete block design with three replications at the field of the research farm of Islamic Azad University, Takestan Branch during 2017-2018 and 2018-2019 years. Experimental factors include three species of mycorrhiza fungi (control, Glomus mosseae, G.etunicatum and G.intradices) and Soren amino acid fertilizer levels (this commercial compound contains a variety of essential amino acids for the plant) include no foliar application and foliar application in two stages of stem and flowering. The results show that inoculation with mycorrhiza species has been significant for all studied traits in this test. Also, the effect of amino acid fertilizer has had a significant effect on all traits, except essential oil percentage and extract yield. Among the mycorrhizae used in this experiment, Glomus mosseae is able to be superior over other fungi in most traits. The highest seed yield is obtained from amino acid fertilizer and Glomus mosseae with 2343 kg / ha and the highest essential oil yield is in Glomus mosseae with 7.74 kg / ha. Based on the results, it can be concluded that the use of amino acid fertilizers with inoculation with mycorrhiza has a positive effect on the traits of marigold.