Abstract
Background: Weed management during growing season has been a serious problem for many years. Worldwide, a 10% loss of agricultural products can be attributed to the competitive effect of weeds, despite their intensive control. Dactyloctenium aegyptium and Chenopodium album L. is an annual weed of cultivated fields. Methods: This investigation was done in 2020-2021. Root parts of both weeds Dactyloctenium aegyptium and Chenopodium album were collected from a nearby area, Sardar Vallabh Bhai Patel University of Agriculture and Technology, Meerut. To determine the antifungal potentials of both weeds Dactyloctenium aegyptium and Chenopodium album root extracts were determined by the food poisoning method against fungal phytopathogens. Methane, Ethyl acetate, Butyl alcohol, Benzene and Water-soluble root extracts of both weeds at different concentrations (5%, 10% and 15%) were used against fungal phytopathogens growth in laboratory conditions and also used on fungal infected related attributes of Bengal gram in a pot culture experiment in 1:10 ratio. Antioxidants of both weed extracts were done by DPPH, FRAP and ABTS methods. Result: Findings showed that application of 15% concentrated extracts has maximum antifungal effects against Fusarium oxysporum and Sclerotium rolfsi (70-80%). In the pot experiment, we find that at increased concentrations of methanolic extract (15%) infected Bengal gram crops show high effectiveness against fungal phytopathogens and improve different parameters such as germination, plant physiology and morphological characteristics. However, higher concentrations of methanol extract promoted these parameters and reduced fungal growth in both in vivo and vitro conditions Results of this study reported highly significant suppressive effects of higher concentrations (10% and 15%).
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