Impact of arbuscular mycorrhizal fungi and seaweed extract on growth parameters of coriander (Coriandrum sativum L.)

The present study was carried out during the two successive growing seasons of the 2019–2020 and 2020–2021 at the experimental farm of faculty of science, Mansoura University, Mansoura, Al-Dakahlia governorate, Egypt to investigate the effect of Arbuscular mycorrhiza1 fungi (AMF) and seaweed extracts, as well as, their interactions on vegetative growth of coriander (C. sativum). The experimental design was split plot design with four replicates, Chemical fertilizers (NPK) were assigned to the main plots, while AMF inoculation, seaweed extracts and their mixture concentrations were assigned to the subplots. The obtained results could be summarized as follows: (1) the addition of S.W + AMF yielded a notable increase in the coriander plants' vegetative growth and chemical composition in both seasons. (2) The addition of 50% of the recommended dose of NPK chemical along with seaweed extracts and arbuscular mycorrhizal fungi was the best combination with the highest mean values of root length, number of branches / plant., shoot fresh weight, shoot dry weight, shoot length, number of leaves/plant, and leaf area; photosynthesis pigments content (chromophyll a, b, a+b, and carotenoids content); total carbohydrates content; and the coriander plants' N, P, K, Mg, and Ca contents.