scholarly journals ALLELOPATHIC POTENTIAL AND PHYTOCHEMICAL SCREENING OF FOUR MEDICINAL PLANTS OF NEPAL

2015 ◽  
Vol 12 (12) ◽  
pp. 56-61 ◽  
Author(s):  
Swasti Sharma ◽  
Ajana Devkota
Keyword(s):  
Medicinal Plants ◽  
Seedling Growth ◽  
Cannabis Sativa ◽  
Ageratum Conyzoides ◽  
Test Species ◽  
Phytochemical Study ◽  
Allelopathic Potential ◽  
Eclipta Prostrata ◽  
Phenol Glycoside ◽  
Paper Method

The laboratory tests were conducted to evaluate the allelopathic potential and phytochemical study of the four selected medicinal plants Ageratum conyzoides, Eclipta prostrata, Cannabis sativa and Woodfordia fructicosa. The aqueous extract bioassay of the plants with stem and root were conducted on the two test seeds Triticum aestivum (wheat) and Pisum sativum (pea) by filter paper method. Germination, seedling growth and biomass production were observed under the allelopathic study whereas under phytochemical study qualitative or presence or absence and quantitative or crude amount of the phytochemicals present were also estimated. For the allelopathic studies the germination and seedling growth of wheat and pea test species under the different concentrations 2 %, 4%, 6%, 8% and 10% of the stem and root extracts of the plants under study were carried out. Increased concentration of the aqueous extracts of the plants increased the inhibitory rate or decreased the germination and seedling growth.Species sensitivity varied with the test seeds and alkaloid, flavonoid, saponin, tannin, phenol, glycoside and essential oil were the phytochemicals present in the plant extracts.Scientific World, Vol. 12, No. 12, September 2014, page 56-61   

Allelopathic potential of Artemisia campestris ssp. caudata on Lake Huron sand dunes

1997 ◽  
Vol 75 (11) ◽  
pp. 1903-1912 ◽  
Author(s):  
Kyeong W. Yun ◽  
M. A. Maun
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Mycorrhizal Fungi ◽  
Sand Dune ◽  
Sand Dunes ◽  
Dry Weight ◽  
Fungal Colonization ◽  
Test Species ◽  
Allelopathic Potential ◽  
Artemisia Campestris

Greenhouse studies were conducted to test allelopathic effects of Artemisia campestris ssp. caudata on seed germination and seedling growth of several sand-dune species and colonization by mycorrhizal fungi. The aqueous extracts of A. campestris showed no inhibitory effect on seed germination, seedling elongation, or dry-weight growth of plants at lower concentrations (10 and 50%), but 100% concentration of the extracts caused varying degrees of inhibition depending on the test species. The mixing of dry leaves of seedlings of A. campestris to the sand showed severe inhibition of Elymus canadensis seedlings. The percent germination of test species in soil from the rhizosphere of A. campestris was significantly lower than that of the control. The leaf area and dry weight were also lower but the differences were not significant. The aqueous extract inhibited mycorrhizal fungal colonization in roots of three sand-dune grasses. Key words: allelopathy, Artemisia campestris ssp. caudata, seed germination, seedling growth, mycorrhizal fungi.

Studi Potensi Gulma Sebagai Tanaman Obat di Kabupaten Jayawijaya

Agrotek ◽  
2018 ◽  
Vol 4 (7) ◽  
Author(s):  
Anti Uni Mahanani
Keyword(s):  
Medicinal Plants ◽  
Data Collection ◽  
Sampling Method ◽  
Imperata Cylindrica ◽  
Cyperus Rotundus ◽  
Mimosa Pudica ◽  
Ageratum Conyzoides ◽  
Amaranthus Spinosus ◽  
Eclipta Prostrata ◽  
Physalis Angulata

<em>The purpose of this research is to identify the potency of gulma plant in jayawijaya region to become medicinal plants. Purpose Sampling method was being used in the data collection. The result of the inventaritation research found that there are 18 weeds utilized as medicine plants in jayawijaya region, namely: : Babandotan (Ageratum conyzoides), Rumput Gajah (Pannisetum purpureum), Putri Malu (Mimosa pudica), Kukuyaan (Corenia violacea), Ciplukan (Physalis angulata L.), Kecimbling Hijau dan Merah (Stachytarpheta mutabilis Vahl), Rumput Teki (Cyperus rotundus), Rumput 9 Dewa, Alang-Alang (Imperata cylindrica), Tapak Kuda/Gagan (Cantella asiatica L.), Patikan Emas (Euphorbia hirta L.), Biji Kacang, Boborongan (hyptis brevipes Poit), Bayam Berduri (Amaranthus spinosus L.), Urang-Aring (Eclipta prostrata L.), Tembelekan (Lantana camara L.), Tunjuk Langit, and Rumput Mutiara (Hedyotis corymbosa� (L).</em>

scholarly journals Allelopathic Potential of Three Oil Enriched Plants against Seedling Growth of Common Field Crops

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
A K M Mominul Islam ◽  
Md Mojidul Haque ◽  
Oly Bhowmik ◽  
Sabina Yeasmin ◽  
Md Parvez Anwar
Keyword(s):  
Root Growth ◽  
Seedling Growth ◽  
Ricinus Communis ◽  
Root Growth Inhibition ◽  
Isolation And Identification ◽  
Test Species ◽  
Allelopathic Potential ◽  
Plant Parts ◽  
Natural Herbicides ◽  
Control Laboratory Condition

Current study aims to investigate into the allelopathic potential of the different parts (leaf, bark, stem, twig and root) of three oil-enrich plant species of Bangladesh viz., Jatropha curcus, Ricinus communis and Aphanamixis polystachya. The aqueous extract of those plant parts were diluted into four different concentrations viz., 1:5, 1:10, 1:15, 1:20 (w/v) and tested against the seedling growth of jute, rice, wheat, radish, tomato, mungbean and mustard under control laboratory condition. A control (distilled water without extract) was also maintained in every cases and the bioassay experiment was replicated thrice. The results of this research showed that the shoot and root growth inhibition of rice, wheat, jute, tomato, radish, mungbean and mustard by leaf, bark, stem, twig and root extracts of J. curcus, R. communis and A. polystachya varied significantly. Compare to the shoot growth, the root growth of the test species inhibited more except J. curcus. The leaf and root have higher allelopathic potential than any other parts of the studied plants. Finally, it can be concluded here that J. curcus plant extracts has higher allelopathic potential than other two plants R. communis and A. polystachya. Therefore, J. curcus can be used as a candidate plant for isolation and identification of allelopathic substances for the development of new natural herbicides.

scholarly journals Physiological and Biochemical Responses of Ageratum conyzoides, Oryza sativa f. spontanea (Weedy Rice) and Cyperus iria to Parthenium hysterophorus Methanol Extract

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1205
Author(s):  
Mst. Motmainna ◽  
Abdul Shukor Juraimi ◽  
Md. Kamal Uddin ◽  
Norhayu Binti Asib ◽  
A. K. M. Mominul Islam ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Methanol Extract ◽  
Parthenium Hysterophorus ◽  
Carotenoid Content ◽  
Weedy Rice ◽  
Ageratum Conyzoides ◽  
Test Species ◽  
Biochemical Responses ◽  
Glasshouse Condition ◽  
Physiological And Biochemical

The current study was designed to investigate the effect of Parthenium hysterophorus L. methanol extract on Ageratum conyzoides L., Oryza sativa f. spontanea (weedy rice) and Cyperus iria L. in glasshouse condition. Here, Parthenium hysterophorus methanol extract at 20, 40, and 60 g L−1 concentrations was applied on the test species to examine their physiological and biochemical responses at 6, 24, 48 and 72 h after spraying (HAS). The phytotoxicity of P. hysterophorus was strong on A. conyzoides compared to weedy rice and Cyperus iria at different concentrations and exposure times. There was a reduction in photosynthesis rate, stomatal conductance, transpiration, chlorophyll content and carotenoid content when plants were treated with P. hysterophorus extract concentrations. Exposure to P. hysterophorus (60 g L−1) at 24 HAS increased malondialdehyde (MDA) and proline content by 152% and 130%, respectively, in A. conyzoides compared with control. The activities of antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD)) were also increased in the presence of P. hysterophorus extract. Present findings confirm that the methanol extract of P. hysterophorus can disrupt the physiological and biochemical mechanism of target weeds and could be used as an alternative to chemical herbicides.

Medicinal Herbs with Anti-Inflammatory Activities for Natural and Organic Healing

2021 ◽  
Vol 25 ◽  
Author(s):  
Mohamad Hesam Shahrajabian
Keyword(s):  
Herbal Medicine ◽  
Medicinal Plants ◽  
Cannabis Sativa ◽  
Inflammatory Diseases ◽  
Nigella Sativa ◽  
Centella Asiatica ◽  
Medicinal Herbs ◽  
Scientific Publications ◽  
Anti Inflammatory ◽  
Clinical Experiments

: One of the principal causes of different disorders is an uncontrolled inflammatory response. Alkaloids, flavonoids, polyphenolic, proanthocyanidin, terpenoid, and steroid compounds are the main reasons for the anti-inflammatory activities of medicinal herbs and plants. The current manuscript introduces a series of potential anti-inflammatory plants, particularly those which are routines in Iranian and Chinese traditional herbal medicine, and simplifies the function and mechanisms of natural constituents for the prevention and treatment of inflammatory disorders. PubMed, Science Direct, Google Scholar, Wiley Online Library, Springer, Taylor, Francis, etc., have been used to search for collecting of scientific publications for a full evaluation of current documentation in the literature showing the importance of medicinal plants with anti-inflammatory characteristics and natural medicines. The most notable medicinal plants with anti-inflammatory activities are Baccharis dracunculifolia, Aconitum bulleyanum, Crateya adansonii, Alliums spp., Centella asiatica, Flos lonicerae, Corydalis dubia, Syringae folium, Coptis chinensis, Casearia decandra, Nigella sativa, Cannabis sativa, Tamarindus indica L., Glycyrrhiza glabra, Panax ginseng, Panax notoginseng, Pistacia vera, Smilax china, Scutellaria baicalensis, Rosemarinus officinalis, Moringa olifera, Pulsatilla radix, Pistacia atlantica, Rullia tuberose, Canarium album, Dodonaea polyandra, Forsythia suspense, Polygala tenuifolia, Radiz Isatidis, Hypericum sampsonii, Geranium koreanum, Typha capensis, Isatidis folium, Ginkgo biloba, Houttuynia cordata, snow lotus, etc. Herbal medicine mainly uses numerous parts of plants or combinations of them to prevent and remedy diseases and promote health. More investigations and clinical experiments are needed to provide more information on the importance of medicinal plants as well as their roles in the treatment and prevention of inflammatory diseases.

scholarly journals Phytotoxic Activity of Parthenium Against Wheat and Canola Differ With Plant Parts and Bioassays Techniques

2016 ◽  
Vol 34 (1) ◽  
pp. 11-24 ◽  
Author(s):  
A. KHALIQ ◽  
F ASLAM ◽  
A MATLOOB ◽  
A JAVAID ◽  
A TANVEER ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Filter Paper ◽  
Leaf Extracts ◽  
Invasive Weed ◽  
Test Species ◽  
Chlorophyll Contents ◽  
Phenolic Contents ◽  
Plant Parts ◽  
Phytotoxic Activity ◽  
Whole Plant

Phytotoxic effects of invasive weed Parthenium hysterophorus were studied by using whole plant, leaf and root aqueous extracts at 0, 2.5, 5.0, 7.5 and 10% (w/v) concentrations against germination and early seedling growth of wheat and canola. Studies were carried out both in Petri plates with filter paper as substratum placed in controlled conditions and soil-filled plastic pots placed in open environments. Pronounced variation was noted for phytotoxic activity of different plant parts of parthenium, aqueous extract concentrations, test species, and bioassay techniques. Aqueous parthenium extracts either inhibited or delayed the germination and suppressed seedling growth of test species over control. For both test species, all the germination attributes were suppressed to a greater extent in Petri plates than in plastic pots. Leaf extracts were more suppressive to germination of test species than whole plant and root extracts. Increasing extract concentration beyond 2.5% caused significant reduction in seedling dry biomass of both test species. Aqueous parthenium extract diminished chlorophyll contents of wheat and canola by 32-63% and 29 69%, respectively. Nevertheless, an increase of 9-172% and 22-60% in phenolic contents of wheat and canola was recorded. Canola appeared to be more susceptible than wheat at all extract concentrations. Present study concluded that bioassays conducted under controlled condition using filter paper as substratum may be misleading due to over estimation of allelopathic response and variation in potential of receiver and donor species. Furthermore, it implies that threshold concentrations of allelochemicals for test species in Petri plates are rarely reached under field conditions.

scholarly journals Synergistic Antibacterial Activity of Lantana camara L., Parthenium hysterophorus L., Cannabis sativa L. and Justicia adhatoda L. Leaves Extract against Procured Multi-drug Resistant Bacteria In Vitro

2021 ◽  
pp. 34-40
Author(s):  
Jyoti Chandola ◽  
Pooja Singh ◽  
Rishabh Garg ◽  
Narotam Sharma
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plants ◽  
Cannabis Sativa ◽  
Lantana Camara ◽  
Parthenium Hysterophorus ◽  
Resistant Bacteria ◽  
Drug Resistant ◽  
Drug Resistant Bacteria ◽  
Weed Plants ◽  
Justicia Adhatoda

The scientific study of this research has been focused on synergistic antibacterial activity of two weed plants, Lantana camara L., Parthenium hysterophorus L. alongwith two medicinal plants, Cannabis sativa L., Justicia adhatoda L. against multi- drug resistant (MDR) bacteria. Dried leaf powders of the plants were extracted using air-dried method followed by the ethanol- solvent extraction method for the crude extract of the leaves. The crude extracts were tested for antibacterial activity against three MDR bacteria, that is, one Gram positive bacteria- Staphylococcus aureus and two Gram negative bacteria- Escherichia coli and Proteus mirabilis. Out of 18 antibiotics tested against procured bacteria, Staphylococcus aureus was resistant to 10 out of 10 tested antibiotics, Escherichia coli was resistant to 4 out of 12 tested antibiotics and Proteus mirabilis was resistant to 9 out of 10 tested antibiotics. The tested weed plants and the medicinal plants when combined together showed more zone of inhibition against multidrug resistant bacteria ( Two combinations of phytochemicals Lantana camara, Cannabis sativa and Lantana camara, Cannabis sativa, Justicia adhatoda, Parthenium hysterophorus showed maximum zones of inhibition, that is, 30 mm) as compared to when these plants were tested solitarily, showing pronounced antibacterial activity. These findings showed that the antibacterial activity enhanced when they were combined together and this potential could be used against various infectious diseases with more research and modification in this area. Weed plants also holds as much importance as the medicinal plants although not to that extent, but they clearly inhibit the growth of bacteria and this property of weeds along with the medicinal plants holds a promising future in treating many diseases caused by multi-drug resistant bacteria on the pharmaceutical level.

scholarly journals ALLELOPATHIC POTENTIAL OF WEED SPEICES AGERATUM CONYZOIDES L. AND CLEOME VISCOSA L. ON GERMINATION AND GROWTH OF SESAMUM INDICUM L

2015 ◽  
Vol 2 (2) ◽  
pp. 114-117
Author(s):  
Anbarasan R ◽  
Prabhakaran J
Keyword(s):  
Growth Parameters ◽  
Dry Weight ◽  
Inhibitory Effect ◽  
Germination Percentage ◽  
Sesamum Indicum ◽  
Weed Species ◽  
Ageratum Conyzoides ◽  
Allelopathic Potential ◽  
Germination And Growth ◽  
Cleome Viscosa

Various concentrations (5%, 10%, 15% and 20%) of aqueous extracts prepared from two weed species namely Ageratum conyzoides L. and Cleome viscosa L. and used for the present experiments to determine their allelopathic potential on growth and developmental changes on sesame (Sesamum indicum L.). The weed extracts showed an inhibitory effect on germination percentage, root and shoot growth, and fresh and dry weight of sesame seedlings. The extracts of A.conyzoides had more inhibitory effect at 20%concentration,than that of C.viscosa on growth parameters of sesame.

scholarly journals Vegetation period of genetic resources of flax (Linum usitatissimum L.)

2020 ◽  
Vol 66 (3) ◽  
pp. 36-47
Author(s):  
Grażyna Silska
Keyword(s):  
Medicinal Plants ◽  
Genetic Resources ◽  
Linum Usitatissimum ◽  
Biological Diversity ◽  
Cannabis Sativa ◽  
Genetic Material ◽  
Vegetation Period ◽  
Convention On Biological Diversity ◽  
Biological Features ◽  
Beginning Of Flowering

Abstract Introduction Institute of Natural Fibres and Medicinal Plants (INF&MP) is involved in gathering and evaluation of genetic resources of flax (Linum usitatissimum L.), hemp (Cannabis sativa L.) and medicinal plants, because Poland has signed the Convention on Biological Diversity. Field trials were carried out in 1990–2001 in the Experimental Station in Wojciechów located in Opolskie region. The research material was accessions of genetic resources from the collection of flax, stored at the Institute of Plant Breeding and Acclimatization Institute in Radzików near Warsaw. Objective The aim of the publication was to evaluate the following biological features of flax: time of beginning of flowering and vegetation period to yellow maturity. Methods The characteristics data for flax accessions are presented according to the methodology of development of the International Flax Database. Each flax accessions from the world collection of flax genetic resources received one of the following assessments of two vegetation periods: very short, short, medium, long and very long. Descriptors of biological features of flax were used, presented in “List of flax descriptors (L. usitatissimum L.)” edited by Janka Nozkova, published in 2011. These descriptors are used to develop the International Flax Database, which in turn helps in the rapid evaluation of the L. usitatissimum genetic resource collection. Carrying out a detailed characterization of biological features of L. usitatissimum accessions is very helpful for breeders in selecting genetic material for breeding new varieties of flax. Results The following results were obtained from the time of the beginning of flowering and the vegetation period to yellow maturity. Time of beginning of flowering was the following: very short – 0 accessions, short – 97 accessions, medium – 20 accessions, long – 2 accessions and very long – 0 accessions of flax. The genotypes tested were characterized by the following results in terms of vegetation period from sowing to yellow maturity: very short – 0, short – 37, medium – 62, long – 0 and very long – 0 accessions of flax. Conclusions Time of beginning of flowering and the vegetation period to yellow maturity shall be revalorised to the International Flax Database for those L. usitatissimum accessions that did not receive the same assessment of the biological features tested in the two or three years of the study.

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