Curcuma Amada Research Articles

Analysis of Phytochemical Constituents, Pharmacological and Ethnobotanical Studies of Selected Folk Medicinal Plant, Curcuma amada Roxb. (Mango Zinger)

Curcuma amada, also known as Mango ginger, is a distinctive spice that shares morphological similarities with ginger but imparts a raw mango flavor. The primary use of Curcuma amada rhizome lies in pickle and culinary preparations. In traditional medicinal systems such as Ayurveda and Unani, Curcuma amada is highly valued for its diverse properties, serving as an appetizer, alexteric, antipyretic, aphrodisiac, diuretic, emollient, expectorant, and laxative. It is prescribed to address various conditions, including biliousness, itching, skin diseases, bronchitis, asthma, hiccough, and inflammation from injuries. Despite its extensive traditional use, there is a scarcity of studies exploring the antioxidant, antimicrobial, and cytotoxic activities of Curcuma amada rhizome extract. Antibacterial activity was assessed using the agar well diffusion method against Gram-positive Staphylococcus aureus and three Gram-negative strains- Klebsiella pneumonia, Escherichia coli, and Acetobacter aceti. The study aims to investigate the antimicrobial and cytotoxicity activities, as well as conduct in silico pharmacological analysis of Curcuma amada. In antibacterial tests, a notable zone of inhibition was observed against Acetobacter aceti and Escherichia coli, while none was observed against Klebsiella pneumoniae and Staphylococcus aureus. Cytotoxicity was assessed through a brine shrimp lethality bioassay, revealing results based on mortality numbers and the percentage of affected brine shrimp. In the in silico analysis, which evaluates pharmacological activity through pharmacokinetic analysis and molecular docking, four phytochemicals (E)-.beta.-Farnesene, eupatin, 3-Carene, and coumarin from the plant were selected. These phytochemicals were docked against the Estrogen receptor alpha (ERα), a protein associated with breast cancer. The docking results demonstrated promising binding scores, with E-.beta.-Farnesene, eupatin, 3-Carene, and coumarin scoring -11.3, -6, -6.3, and -8.1, respectively. J. of Sci. and Tech. Res. 5(1): 143-156, 2023

History and A Phytopharmacological Review of Curcuma Amada

Plants are one of the main sources of biologically active materials and crude drugs. Curcuma amada is an plant that belongs to Zingiberaceae family of curcumin. Curcuma amada (Zingiberaceae) basically known as mango ginger because its flavour of rhizome and foliar parts have a similar aroma to mango. It is one of the most important species of Curcuma family having medicinal, traditional and bio- logical properties. The aim of the present review is to know about the phytochemicals, volatile compounds, antimicrobial and other biological activities. Volatile oils extracted from rhizomes of Curcuma amada are rich in phytoconstituents. The curcuminoids present in C.amada is responsible for its therapeutic and biological activities. It is traditionally used to treat various diseases in human being which includes anti-inflammatory, anti-bacterial, anti-cancer, anti-tubercular, anti -allergy, anthelmintic and anti- pyretic activities by their extract. It also possesses healing of various skin disorders. In Ayurveda and Unani systems of medicine have given much importance to mango ginger as an appetizer, alexteric, antipyretic, aphrodisiac, diuretic, emollient, expectorant and laxative and to cure biliousness, itching, skin diseases, bronchitis, asthma, hiccough and inflammation due to injuries. They also used in the manufacture of pickles, chutney, salad and jam.

Response of mango ginger (Curcuma amada) to plant population and different weed control methods in the forest-savanna transition zone of south-western Nigeria

Response of mango ginger (Curcuma amada) to plant population and different weed control methods in the forest-savanna transition zone of south-western Nigeria

Pemanfatan Temu Mangga dan Sambiloto untuk Imunitas Tubuh

Indonesia is located on the equator with a rich potential of local spices, for example, white turmeric of Curcuma Mangga (Curcuma mangga Val.) and Sambiloto leaves (Andrographis paniculata). These two food ingredients are only sold in fresh form because some people do not know how to process them properly and practically. Curcuma mangga can be processed into instant, ready-to-drink powder that is easy to consume. Not only that but curcuma mangga and sambiloto leaves also contain antioxidants such as polyphenols, which can be useful for increasing immune power. The purpose of this service is for partners to understand the benefits of Curcuma Mangga and Sambiloto leaves. The outreach activity was held on November 23, 2022, and was attended by 21 Himatepa-HMPPI UMBY administrators and 54 NREC Universiti Malaysia Terengganu. This activity includes counseling and training about the benefits of Curcuma Mangga and Sambiloto leaves and how to market them. The counseling also discussed how to process instant powder and Sambiloto. This service program resulted in partners understanding the benefits of Curcuma Mangga and Sambiloto leaves to increase immunity and its marketing strategies. The panelists liked the overall instant mango powder product with a score of 3.95. Partners can also increase their entrepreneurial abilities by producing instant powder from Curcuma Mangga and Sambiloto.

Anti-Lipase and Antioxidant Activities of the Selected Plant Materials

Pancreatic lipase plays an important role in the efficient digestion of triglycerides. Its action on lipids produces fatty acids, accumulating in excess into various tissues leading to dyslipidaemia and associated co-morbidities. Thus, inhibition of pancreatic lipase is one of the preferable ways to prevent such conditions. The present study is aimed to evaluate the anti-lipase and antioxidant activities of the leaves of Magnifera indica L. (mango), Psidium guajava L. (guava) and Moringa olifera L. (moringa), and fresh rhizomes of Zingiber officinale R. (ginger), Curcuma longa L. (turmeric), and Curcuma amada R. (mango ginger). The selected samples were dehydrated, powdered, and extracted using absolute ethanol. The extracts were analysed for total phenols, flavonoids, DPPH radical scavenging activity and anti-lipase activity. Among the selected leaves, mango leaves had the highest total phenolic content (6300 mg GAE /100 g), total flavonoid content (6930 mg RE /100 g) and highest DPPH radical scavenging activity (14497.3 mgTE /100 g). The highest lipase inhibition (89.07%) was observed in guava leaves. In rhizomes, turmeric contained the highest total phenolic content (6570 mg GAE /100 g) and flavonoid content (14760 mg RE /100 g). Mango ginger possessed the highest DPPH radical scavenging activity of 9038.7 mg TE /100 g and lipase inhibition of 44.83%. The study concludes that guava leaves and mango ginger possess the highest anti-lipase activity among the selected leaves and rhizomes.

Mango ginger (Curcuma amada Roxb.) may alleviate the effect of high-fat diet/streptozotocin-induced diabetes by activation of the GSK-3β/Fyn/Nrf2 pathway.

Mango ginger (MG) exhibits antioxidant, anti-inflammatory, and antihyperglycemic effects; however, the exact mechanism of action of MG extract in relation to its antidiabetic properties remains unclear. To investigate the potential antidiabetic effect of MG extract, we used a high-fat diet (HFD)/low-dose streptozotocin (STZ)-induced type 2 diabetic rat model. A total of 28 male Wistar rats were randomly divided into four groups: (i) Control, (ii) MG (50 mg/kg/day of MG extract), (iii) HFD + STZ (40 mg/kg i.p.), and (iv) HFD + STZ + MG. Following a 12-week administration of MG extract, significant reductions were observed in serum glucose, insulin, free fatty acid, cholesterol, and triglyceride levels in diabetic rats (p < .0001 for all). MG extract supplementation led to an increase in the total antioxidant capacity of the serum and a decrease in malondialdehyde (MDA) levels in both the serum and liver (p < .0001). Furthermore, hepatocellular fat accumulation was partially attenuated in the HFD + STZ + MG group. Notably, MG extract inhibited glycogen synthase kinase-3β (GSK-3β) in the liver (p < .01) and downregulated Fyn expression, resulting in elevated nuclear factor erythroid 2-related factor 2 (Nrf2) activity in the HFD + STZ + MG group compared to the HFD + STZ group (p < .05). The increased activity of Nrf2 in the HFD + STZ + MG group likely promoted the upregulation of heme oxygenase 1 (HO-1) in the liver (p < .0001). In conclusion, MG extract may exert antidiabetic effects by augmenting the antioxidant defense system through the regulation of GSK-3β/Fyn/Nrf2 in a rat model of type 2 diabetes.

Optimizing the Synthesis of Silver Nanoparticles Using Five Curcuma Species under UV Irradiation as a Potent Suncreen Substrate

Curcuma rhizome is reported to have a high total phenolics that could act as reducing agents for metals to nanoparticles. Rhizomes of five curcuma species were selected as bioreductors, namely white turmeric (Curcuma zedoaria), black turmeric (C. aeruginosa), fingerroot (C. rotunda), temu giring (C. heyneana), and mango ginger (C. amada). The research was designed to select the reductor from five Curcuma rhizomes mentioned above for silver nanoparticles synthesis, optimizing the synthesis condition, and evaluating its potential as a sunscreen agent. Silver nanoparticles (AgNPs) were synthesized by mixing the extracts with AgNO3 and irradiating thesolution under a 366 nm UV lamp at certain times and pHs. Based on the spectra, the highest absorbance of silver nanoparticles was detected on the temu kunci extract. The optimum conditions for silver nanoparticle-temu kunci (AgNPs-TK) were determined using a Box-Behnken Design and Minitab. Statistical results showed that 0.13 g of silver nitrate irradiated for 162.7 min at pH 11.34 was the optimum condition for AgNPs synthesis. The synthesized AgNPs were characterized by PSA/DLS, XRD, and TEM. The TEM analysis confirmed that silver particles are spherical. The size of the AgNPs produced based on TEM analysis is 5–50 nm. Sunlight inhibitionactivity, determined spectrophotometrically, indicated that the sun protection factor of AgNPs-TK is categorized as a minimum protection in concentration of 25 ppm.&nbsp;&nbsp

Realizing the High Q-Factor of a CSIW Microwave Resonator Based on an MDGS for Semisolid Material Characterization.

In this work, the high-quality factor (Q-factor) and high sensitivity of a circular substrate-integrated waveguide (CSIW) are proposed for the characterization of semisolid materials. The modeled sensor was designed based on the CSIW structure with a mill-shaped defective ground structure (MDGS) to improve measurement sensitivity. The designed sensor oscillates at a single frequency of 2.45 GHz, which was simulated using an Ansys HFSS simulator. Electromagnetic simulation explains the basis of the mode resonance of all two-port resonators. Six variations of the materials under test (SUTs) were simulated and measured, including air (without an SUT), Javanese turmeric, mango ginger, black turmeric, turmeric, and distilled water (DI). A detailed sensitivity calculation was performed for the resonance band at 2.45 GHz. The SUT test mechanism was performed using a polypropylene tube (PP). The samples of dielectric material were filled into the channels of the PP tube and loaded into the center hole of the MDGS. The E-fields around the sensor affect the relationship with the SUTs, resulting in a high Q-factor value. The final sensor had a Q-factor of 700 and a sensitivity of 2.864 at 2.45 GHz. Due to the high sensitivity of the presented sensor for characterization of various semisolid penetrations, the sensor is also of interest for accurate estimation of solute concentration in liquid media. Finally, the relationship between the loss tangent, permittivity, and Q-factor at the resonant frequency were derived and investigated. These results make the presented resonator ideal for the characterization of semisolid materials.

PHYSICOCHEMICAL, FORMULATION, AND EVALUATION OF ANTIFUNGAL HERBAL SOAP USING CURCUMA AMADA ROXBURGH AND PRUNUS DULCIS

Objective: Mango ginger (Curcuma amada Roxburgh) belongs to the Zingiberaceae family, a type of annual plant. It is commonly used for culinary and therapeutic purposes, which also has the maximum amount of health benefits. The main objective of the study is formulation of antifungal herbal soap which is alternate to chemical products. Methods: In the present study, aqueous, ethanol, and chloroform extract of mango ginger were subjected to qualitative and quantitative phytochemical analysis and determined the antioxidant activity using DPPH assay and FRAP assay. Furthermore, the ash and moisture content of the rhizome was analyzed. The aqueous extract of mango ginger is used in the GC-MS study to identify the compounds present in the mango ginger. The oil was extracted from mango ginger and subjected to antifungal activity by the well-diffusion method against three fungi, namely, Candida tropicalis, Candida auris, and Candida albicans. Using the extracted mango ginger oil and almond oil, antifungal Herbal Soap is formulated. Result: This study shows that aqueous extract of mango ginger has a greater number of carbohydrates, phenol, flavonoids, and antioxidant activity than other extracts. Antifungal activity is observed at various concentrations of extract, which shows that the highest zone of inhibition is 1.4 cm for C. auris. The formulated soap has a good aroma, and color – mustard yellow. This soap is base in nature and its pH is 8.9. Conclusion: According to the above studies, the formulated antifungal herbal soap may rectify the problems of fungal skin infections.

Detection of Semi-Solid Materials Utilizing Triple-Rings CSRR Microwave Sensor.

This article proposes the design, fabrication and measurement of a triple-rings complementary split-ring resonator (CSRR) microwave sensor for semi-solid material detection. The triple-rings CSRR sensor was developed based on the CSRR configuration with curve-feed designed together, utilizing a high-frequency structure simulator (HFSS) microwave studio. The designed triple rings CSRR sensor resonates at 2.5 GHz, performs in transmission mode, and senses shift in frequency. Six cases of the sample under tests (SUTs) were simulated and measured. These SUTs are Air (without SUT), Java turmeric, Mango ginger, Black Turmeric, Turmeric, and Di-water, and detailed sensitivity analysis is conducted for the frequency resonant at 2.5 GHz. The semi-solid tested mechanism is undertaken using a polypropylene (PP) tube. The samples of dielectric material are filled into PP tube channels and loaded in the CSRR centre hole. The e-fields near the resonator will affect the interaction with the SUTs. The finalized CSRR triple-rings sensor was incorporated with defective ground structure (DGS) to deliver high-performance characteristics in microstrip circuits, leading to a high Q-factor magnitude. The suggested sensor has a Q-factor of 520 at 2.5 GHz with high sensitivity of about 4.806 and 4.773 for Di-water and Turmeric samples, respectively. The relationship between loss tangent, permittivity, and Q-factor at the resonant frequency has been compared and discussed. These given outcomes make the presented sensor ideal for detecting semi-solid materials.

Effect of Poly Herbal Extract of Curcuma Amada Rhizome and Sida Spinosa Leaves on STZ-Induced Tissue Damage Marker Enzymes

Diabetes mellitus (DM) remains a global health challenge with rising prevalence and associated complications. Among its various forms, Type 2 Diabetes (T2DM) poses a significant health concern. Chronic hyperglycemia in T2DM leads to oxidative stress, which, in turn, contributes to tissue damage and dysfunction. The present study investigates the potential therapeutic impact of a poly-herbal extract comprising Curcuma amada rhizome and Sida spinosa leaves on tissue damage marker enzymes in a Streptozotocin (STZ)-induced diabetic animal model. Curcuma amada, known as mango ginger, and Sida spinosa have long been acknowledged for their medicinal properties, often attributed to their rich content of bioactive compounds such as curcuminoids and flavonoids. These compounds possess antioxidant and anti-inflammatory properties, making them promising candidates for mitigating oxidative stress-induced tissue damage. In this research, an animal model for T2DM was induced using STZ, followed by the administration of the poly-herbal extract. Blood glucose levels were monitored throughout the study, and various tissue samples, including liver and kidney, were analyzed to assess the activity levels of tissue damage marker enzymes such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), serum creatinine, and blood urea nitrogen (BUN). The findings of this study aim to shed light on the potential protective effects of the poly-herbal extract against STZ-induced tissue damage marker enzyme alterations. A thorough examination of these effects will offer insights into the therapeutic potential of herbal remedies in mitigating complications associated with T2DM. This research adds to the growing body of knowledge on complementary treatments for diabetes, bringing us one step closer to a more comprehensive understanding of the therapeutic potential of natural compounds in managing this widespread and challenging condition.

Metabolic profile, bioactivities, and variations in chemical constituents of essential oils of twenty mango ginger (Curcuma amada) accessions

Metabolic profile, bioactivities, and variations in chemical constituents of essential oils of twenty mango ginger (Curcuma amada) accessions

Effect of Agroforestry System on Soil Properties in an Acid Inceptisol under Tropical Climatic Situation of Eastern India

An experiment was carried out using the existing Field of AICRP on Agroforestry Project in Central Research Station of O.U.A.T, Bhubaneswar at a Latitude 20015’ N and longitude of 850 52’ E in order to study the effect of agroforestry system on soil properties in the surface soil. In the year 2013, the system had two tree species Dalbergia sissoo and Gmelina arborea along with 4 intercrops such as pineapple, mango ginger, turmeric and arrowroot. Soil samples were collected after 13 years of agroforestry system in the post harvest period during 2014-15 for soil properties study. With Agro forestry system there was improvement in soil bulk density, organic matter and available nutrients as compared to open field where there was loss of nutrients. Between the trees, Gmelina arborea maintained higher level of soil organic carbon, available N, available P and available K on top soil than Dalbergia sissoo. Inclusion of intercrops maintained significantly higher organic carbon and available status of NPK on the surface soil than non inter cropped system. Pine apple crop recycled a major part of the absorbed N and K causing more accumulation of N and K in all the treated plots. Among the eight combinations of tree and intercrop, Gmelina arborea +pine apple combination is considered the best agroforestry system for maintaining better soil health and sustaining the system in acidic Inceptisols under humid tropical climatic situation.

In-vitro Antibacterial and Antifungal Activity of Curcuma Amada Roxb. against Human Pathogens

This investigation was conducted to evaluate the antimicrobial effectiveness of the agar disc diffusion method and to determine the inhibition zone of Curcuma amada (CA) rhizome extracts (petroleum ether, dichloromethane, and chloroform) against 12 bacterial species and 4 fungal species. The inhibition zones of the extracts were compared to those of Ciprofloxacin and Griseofulvin for antibacterial and antifungal activities, respectively. The findings revealed that the organisms under examination showed significant inhibition of bacterial as well as fungal development during the experiment and that the typical form of C. amada rhizome can be used to treat bacterial and fungal illnesses. So, this plant could be used to find natural compounds that are bioactive and could be used to make new medicines. HIGHLIGHTS Extracts of amada rhizome were found to protect humans from pathogens aureus bacteria had the highest inhibition zone (17 mm) in dichloromethane extract, whereas B. subtilis and B. pumilus bacteria had the lowest inhibition zone (7.5 mm) in C. amada rhizome petroleum ether extract notatum in petrolieum ether extract and A. niger in chloroform extract had the highest inhibition zones (13.5 mm), whereas P. funiculosum in chloroform extract of C. amada rhizome had the lowest inhibition zone (10 mm) GRAPHICAL ABSTRACT

PROFITABILITY AND TIME CONSUMPTION AS INFLUENCED BY VARIOUS WEED CONTROL METHODS IN CURCUMA AMADA ROXB.

&lt;p&gt;To determine the profitability and time consumption of various weed control options in mango ginger, the field trials were conducted at the Teaching and Research Farm, Federal University of Agriculture Abeokuta (07° 20 N, 3° 23 E, 159 m above sea level) in the forest – savannah transition agroecology of Nigeria in the early cropping seasons of 2016 and 2017. Randomized complete block design (RCBD) was used to evaluate ten weed control strategies and replicated three times. Data collected on weed cover, plant biomass, and rhizome yield were analyzed using ANOVA, and treatment means were separated using the least significant difference at p0.05. Results indicated that the highest man days in weeding was observed on the plots weeded five times at 4, 8, 12, 16 and 20 weeks after planting (WAP), while application of pre emergence herbicides generally reduced time spend on weeding. Despite the fact that weeding at 4, 8, 12, 16, and 20 WAP had the maximum rhizome production and yielded the highest gross return, application of oxyfluorfen (oxyf) at 0.24 kg a.i/ha as a pre and post emergence herbicide yielded the highest benefit cost ratio.&lt;/p&gt;

A Brief Review on Evaluation and Exploration of Antioxidant Activity of Mango Ginger

Many free radicals are generates in the human body due to metabolic processes and in order to counteract the harmful effects of these antioxidants, human body has a complex system of natural enzymatic and non-enzymatic antioxidant defenses or mechanisms. These free radicals are mainly responsible for generation of different types of diseases and disorders. Hence protection of body against free radical is important and which can also be done by taking diet with maximum antioxidants. Naturally occurring antioxidant are very important in preventing body from various free radicals. Many medicinal plants and their extracts have been reported for potential anti-oxidant activity. Curcuma amada Roxb (Mango Ginger) is the most important genera come under the Zingiberaceae family. Chemically it has reported for the presence of wide range of phytoconstituents which include the flavonoids, terpenoids, tannins steroids, alkaloids, glycosides and essential oils. Due to presence of wide variety of phytoconstituents plant has very well traditional value reported for pharmacological significance for a variety of ailments. It effectively treats skin allergies, stomach problems, and high blood cholesterol and has been reported for antioxidant properties. In the present review work various research articles published on antioxidant activity of Mango Ginger Have been collected from various journal site and databases and explored systematically

Green synthesis of mango ginger (Curcuma amada) derived fluorescent carbon dots—a potent label-free probe for hexavalent chromium sensing in water

Carbon dots from bio-resources recently received significant impact due to ease of availability, low cost, and simple equipment requirements. In this work, a highly fluorescent carbon dots derived from agro-bio-based precursor, mango ginger rhizomes were developed through a straightforward, low-cost, rapid, economical, and one-step microwave method, without using any chemical reagents or any expensive instruments. The prepared carbon dots exhibited excitation-dependent fluorescence with excitation and emission maxima at 360 and 442 nm, respectively. On account of the excellent photoluminescent property of the system prepared, it is executed as an outstanding hexavalent chromium sensor by fluorescence quenching. Extensive usages of this metal in different fields are unfavorable and cause pollution to the ecological system, and thus sensing of hexavalent chromium in an environmental sample, especially in water resources are highly demandable. The system possesses higher selectivity and sensitivity toward chromium with a limit of detection of 84 nM (4.367 ppb) and a linear relationship between the concentration of chromium and fluorescence intensity maintained from 0 to 33.33 µM. The mechanism was studied using different methods and finally attributed to the inner filter effect. Hereby value addition has been given to the agro-based precursor through an environmentally benign method and is successfully employed as a hexavalent chromium sensor in real water samples with recovery from 95.07 to 102.70%.

Growth and yield of mango ginger (Curcuma amada Roxb.) as influence of plant density, organo-mineral fertilizer, and weeding frequency

Initial slow growth of mango ginger makes them extremely susceptible to weed interference with high yield losses. Therefore, adequate fertilization and timely weeding becomes necessary for enhanced productivity. Thus, effects of weeding frequency and different application rates of organo-mineral fertilizer (OMF) on mango ginger planted at different densities was investigated in 2016 and 2017 cropping seasons. The experiment was conducted using a split-split-plot arrangement with three replications. The main plot consisted of two plant densities: 444,444 plants/ha and 250,000 plants/ha. The subplot included: OMF rate (0, 2.4, and 3.6 tha−1). The sub-subplot was six levels of weeding frequency. Planting at 444,444 plants/ha gave significantly higher rhizome yield. Application of 3.6 tha−1 OMF caused a significant reduction in weed density, resulting in significantly higher rhizome yield and count. Mango ginger plots that were weed-free throughout the crop life cycle produced the highest rhizome yield, but did not give the highest profit. However, rhizome yield on plots weeded at 4, 8, 12, 16, and 20 weeks after planting (WAP) gave the highest net profit. There was a significant interaction between plant density and OMF for crop vigor score at 6 and 12 WAP, with the plant density of 444,444 plants/ha and application of 3.6 tha−1 OMF yielding a higher vigor score than 250,000 plants/ha and 0 tha−1 OMF combination. We concluded that application of 3.6 tha−1 of organo-mineral, weeding at 4, 8, 12, 16, and 20 WAP gave the highest profit and thus recommended for commercial production of mango ginger.

Genetic variability, correlation and path analysis in mango ginger (Curcuma amada ROXB.)

The present investigation was carried out at the Research Farm, Department of Genetics and Plant Breeding, Navsari Agricultural University, Navsari, Gujarat during the kharif, 2018. Twelve different quantitative characters related to rhizome yield were recorded and subjected for estimation of analysis of variance. The result revealed significant differences among the genotypes indicating presence of sufficient amount of variability in all the characters studied. Wide range of variation by virtue of exhibiting highly significant genotypic differences for all the twelve traits. The value of phenotypic coefficient of variation was recorded higher and closer to the respective genotypic coefficient of variation for majority of traits under study indicates less influence of environment. The magnitudes of genotypic correlations were higher as compared to the corresponding phenotypic correlations indicating that there was an inherent association between all the characters at genotypic level. Path coefficient analysis showed rhizome width, leaf width, mother rhizomes per plant, leaf length and leaves per plant exhibited positive direct effects on green rhizome yield per plant. Hence, priority should be given to these traits in mango ginger improvement programme. Keywords: Correlation, Heritability, Mango ginger, Path analysis, Variability

Influence of Different Weed Control Methods on Weed Density and Relative Importance Value of Weeds in Mango Ginger (Curcuma amada Roxb.)

Field trials were conducted in the early cropping seasons of 2016 and 2017 at the Teaching and Research Farm of the Federal University of Agriculture Abeokuta (07° 20&#x2B9;N , 3° 23&#x2B9;E 159 m above sea level) in a derive savannah agro ecology region of South-western Nigeria to evaluate the effect of weed control methods on weed density and weed species composition in mango ginger. Ten weed control methods were evaluated and laid out in a randomized complete block design with three replications. Data collected on weed density were subjected to analysis of variance (ANOVA) and treatment means separated using 5% least significant difference (LSD at p &le; 0.05). Data collected on weed species composition were used to compute relative importance value (RIV). At 8 WAP, there was 48.51 to 96.55% reduction in weed density relative to the maximum on the weedy check plots as a result of different weed control methods. At 24 WAP, there was 34.48% to 55.17% reduction in number of weed species relative to the maximum on the weedy check plots as a result of different weed control methods. Our findings revealed reduction in the dominance of Chromolaena odorata, Commelina benghalensis, Mariscus alternifolius, Passiflora foetida, Perotis indica and Triumpheta cordifolia with the use of oxyfluorfen (oxy) as pre-emergence herbicide. However, further research is needed to prevent the dominance of Panicum maximum in mango ginger.