Since the beginning of agriculture, weeds have been a problem, as they are direct competitors of crops in water, nutrient and sunlight usage and reduce agricultural production (
Monteiro 2022). One such weed that is ecologically and agronomically important is
Chenopodium album L. The ten most widely spread plant species include the
Amaranthaceae (
Netland et al., 2001).
C. album is a widespread species in Europe and Asia, but can be successfully cultivated in subtropical, tropical and temperate regions worldwide and is one of the most cosmopolitan plants on Earth
(Tang et al., 2022). Chickpea (
Cicer arietinum L.) is the most important leguminous crop around the world. Fusarium wilt incited by
Fusarium oxysporum f. sp. ciceris is a major biotic constraint in chickpea production. The present investigation was undertaken to evaluate the efficacy of plant extracts, fungicides and bio-agents against
Fusarium oxysporum f. sp. ciceris under
in vitro and field conditions. Plant extracts and fungicides were evaluated using poison food technique while antagonistic activity of bio-agents was studied using dual culture technique under
in vitro conditions. Field trials were conducted to evaluate the efficacy of different plant extracts, fungicides and bio-agents against Fusarium wilt at Experimental Area of Plant Pathology, CCS HAU, Hisar
(Khanna et al., 2024).
It is intentionally grown as a leafy crop along with rabi crops like wheat, mustard and cereals in certain parts of India demonstrating its dual role as a weed and a useful ethnobotanical resource (
Bhattacharjee 2001;
Bajwa et al., 2019). 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
(Sahrawat et al., 2024).
The genus name
Chenopodium comes from the Greek words khen, meaning ‘goose’ and pous meaning ‘foot’, as the leaves are shaped like a goose’s foot
(Singh et al., 2023). C. album is tolerant to changing moisture content, pH and substrate temperature
(Eslami et al., 2021). It is considered a food and a medicinal herb in the tropical and subtropical Ayurvedic uses; it is still being studied for use as a nutraceutical all over the world (
Gohar, 1997;
Kirtikar and Basu, 1918). It has pharmacologic actions such as anthelmintic (anti-worm), anti-inflammatory, anti-rheumatic, anti-diarrheal, anti-oxidant and anti-microbial with the fruits used for burn treatment being reported with anaesthetic and cooling properties
(Dkhar et al., 2022). The special phytochemical profile of the plant also contains alkaloids, phenols, saponins, phytosterols, two important flavonoids, kaempferol and quercetin, essential oils and abundant potassium and albuminoids (
Harrison, 2022). In recent years, a detailed review by
(Majumdar et al., 2025) brought together the pharmacological and nutritional evidence, which shows that all these bioactives together contribute towards the noted strong antioxidant, antifungal, anti-inflammatory and antibacterial properties of
C. album, thus underscoring its therapeutic potential in contemporary research. Antifungal potential of leaves and roots parts of
Chenopodium album was evaluated against five phytopathogenic fungi including
Alternaria alternata,
Fusarium solani,
Rhizoctonia solani, Pythium aphanidermatum and
Sclerotinia sclerotium using four concentrations
viz. 0, 5, 10 and 15% of leaves and roots water extract led to significantly reduced of fungi mycelial growth. GC-MS analysis of leaves and roots water extract showed the presence of 7 compounds. 2(3H)-furanone, dihydro-4,4-dimethyl; 9-octadecenoic acid (Z), methyl ester; 9,12-octadecenoic acid (Z), methyl ester; 6-methylene bicyclo (3.2.0) hept-3-en-2-one., 1,2-benzene dicarboxylic acid, mono (2-ethylhexyl) ester and hexadecanoic acid, methyl ester. Five phytopathogenic fungi could be managed and controlled by the water leaves and roots extract of
C. album. The antifungal activity of this extract was possible could be used to control a wide range of fungi
(Alkooranee et al., 2019). Quinoa (
Chenopodium quinoa Willd.) and amaranth (
Amaranthus spp.) are pseudocereals with potential as functional foods or raw materials for production of functional foods because of their high nutritional value and phenolic content. However, quinoa and amaranth are low consumed because of flours obtained from their native grains do not have attractive flavor and their nutrients and phenolics have low bioavailability. Germination and roasted of quinoa and amaranth seeds are alternatives for improvement of flour characteristics. Germination and roasting did not affect the content of protein (10.49 to 11.80%), crude fiber (1.19 to 1.96%) and carbohydrates (72.76 to74.77%), while moisture, ash and fat were affected resulting A-NG (5.23%), A-G (3.35%) and Q-G (6.98%) treatment with higher content, respectively. There was statistical difference in all color variables resulting with higher values A-NG in
L* (78.73)
C* (25.40) and
h* (73.77). Regarding to functional properties, in free extracts Q-G resulted with higher levels of total phenolics (6940 mg GAE/kg), condensed tannins (8064 mg CatE/kg) and ABTS (41005 µmol TE/ kg), while A-G obtained higher levels in total flavonoids (1141 mg CatE/kg), DPPH (25351 µmol TE/ kg) and FRAP (44327 µmol TE/kg). Finally, in bound extracts the higher levels were for Q-G in total phenolics (412 mg GAE/kg) and FRAP (4869 µmol TE/kg), A-NG in total flavonoids (263 mg CatE/kg), A-G in condensed tannins (584 mg CatE/kg), Q-NG in DPPH (1823 µmol TE/kg) and ABTS (4869 µmol TE/kg). The characteristics obtained from germinated and roasted quinoa and amaranth flours make them good ingredients for the development of pseudocereals based functional beverages in the near future (
Rodríguez-Sánchez, 2026).
Research gap and justification
Soil-borne fungi pathogens are one of the greatest challenges in sustainable crop production. Although effective, synthetic fungicides are becoming less effective due to the emergence of resistance in pathogenic fungal strains and the environment and food safety concerns caused by their prolonged residency (
Bhaik 2022;
Morea et al., 2025). This has led to a worldwide trend towards botanical alternatives. The biofungicides derived from plants occupied about 33-38% of the global biofungicide market by 2024, where the global production of these biofungicides is estimated to be 450,000 tonnes, mainly neem-based biofungicides and essential oil products and other economic projections are expected to exceed USD 500 million by 2025. However, the systematic isolation and in addition, regulations regarding pesticide residues in an organic farming environment have increased the focus on the search for inexpensive and environmentally friendly plant-based fungicide alternatives that are available locally (
Tzortzakis and Proestos, 2024).
C. album possesses a demonstrated ability to resist diseases and environmental stresses that routinely afflict cultivated crops, making it a potentially rich source of anti-phytopathogenic compounds (
Bhaik, 2022). Prior research has confirmed its antifungal potential: methanol extracts from leaves, stems, roots and inflorescences at concentrations of 0.5%-3.0% inhibited
Fusarium oxysporum development by 24%-80%, with ethyl acetate sub-fractions achieving the highest activity (68%-100% biomass reduction) (
Rauf 2013;
Alkooranee et al., 2019). Against the highly destructive soil-borne pathogen
Sclerotium rolfsii, which infects over 500 plant species and reduces chickpea grain dry biomass by up to 50% compared to untreated controls-a 4% methanolic leaf extract caused up to 82% biomass reduction (
Javaid et al. 2020; 2023). GC-MS profiling of ethyl acetate and n-hexane sub-fractions from
C. album leaves identified compounds including kitazin P and 9,12,15-octadecatrienoic acid, 2,3-dihydroxypropyl ester, which were postulated as key contributors to antifungal efficacy against
S. rolfsii (Javaid et al., 2023). More recently, a parallel approach using leaf extracts from Argemone mexicana, another weed species, confirmed via GC-MS that multiple solvent-polarity fractions yield structurally distinct antifungal compounds active against
F. oxysporum and
Sclerotinia sclerotiorum, underscoring the value of systematic multi-solvent GC-MS profiling across weed species.
Novelty of the present study
Although prior investigations have examined isolated fractions or single solvents, no comprehensive study has simultaneously: (i) evaluated multiple solvent extracts of
C. album (methanol, ethyl acetate, butanol, benzene and aqueous) at graduated concentrations against Bengal gram (chickpea) fungal infection under pot-culture conditions; (ii) monitored the physiological modifications and infection indicators in the infected host plant in real time; and (iii) applied GC-MS profiling to systematically identify the bioactive compounds responsible for observed antifungal activity. This multi-pronged approach, which directly connects chemical fingerprinting to in planta disease outcomes, is novel and unique and will allow a bridge to be formed between in vitro bioassays and real crop protection. Furthermore, recent global reviews have documented the ever-increasing commercial potential of plant-derived fungicides
(Majumdar et al., 2025) and the use of a freely available weed species
C. album as a source of phytofungicides with direct GC-MS validation represents an economically attractive and environmentally sustainable contribution to plant-based fungicide development. Gas Chromatography Mass Spectrometry (GC-MS) is now the benchmark technique for the profiling of secondary metabolites in a wide range of plant species and provides the finest resolution of volatile and semi-volatile bioactive constituents (
Chak, 2021). In general, recent research has shown that the activity of plant extracts against fungi is often solvent-polarity dependent, as reported in similar studies with other plant extract systems
(Morea et al., 2025). The present study aims to: (i) evaluate the antifungal activity of methanol, ethyl acetate, butanol, benzene and aqueous extracts of
C. album at varied concentrations against fungal contamination in pot-culture Bengal gram; (ii) assess the physiological changes and disease indicators in infected plants; and (iii) characterize the bioactive compounds in active fractions through GC-MS analysis, thereby providing a scientifically grounded basis for the development of low-cost, plant-derived fungicides for sustainable chickpea crop protection.