It can also grow under dense rainforest flowering is triggered by the shorter day lengths in winter. Introduction chromolaena odorata l king and robinson belongs to the family asteraceae and is known locally in nigeria through many common names as awolowo, siam weed, elizabeth weed, obirakara, olorohuru and independence weed 1. Results of the study to determine the effect of treatment of methanolic leaf extracts of c. This study reports laboratory and greenhouse studies conducted to determine the effects of several environmental factors on seed germination and seedling emergence of chromolaena seeds for means of. Ijioma75 studied the effect of the oral administration of c. Effect of different methods of chromolaena odorata compost. It has wound healing property and also promotes blood coagulation. Allelopathic effect of lantana camara and chromolaena odorata 1771 hasanuddin university, indonesia. Antimirobial effects of chromolaena odorata on some human. Countries within the introduced range of chromolaena odorata with biological. Allelopathic effects of chromolaena odorata on native and. This website focuses on the biological control of the invasive alien plant chromolaena odorata. Siam weed,bitter your kokua is needed to prevent its spread and bush, devil weed, rey del todo and others protect people and our native plants and animals. Lady bird johnson wildflower center focused on protecting and preserving north americas native plants through native plant lists and image galleries, conservation, education, natural landscapes, seed collection millennium seed bank msb project, preserving and restoring native communities, spreading awareness on invasive species and gardening to attract wildlife.
Effect of ethanolic extract of chromolaena odorata on the kidneys. It is native to the americas, from florida and texas in the united states south through mexico and the caribbean to south america. Impacts of invasive chromolaena odorata on species. Media in category chromolaena odoratathe following 39 files are in this category, out of 39 total. Its small flowerheads about 3 mm across are pale pink or mauve in colour and are. It refers to the colored phyllaries of some species. This plant may be known by one or more common names in different places, and some are listed above. Kofi koba, guyon cathrine, christine raynaud, jeanpierre chaumont, komala sanda and nicod laurence. Distribution, ecology and management of chromolaena odorata. Fulltext effect of chromolaena odorata on the growth and biomass allelopathy is defined as the direct or indirect harmful or beneficial effect of one plant on. King and robinson on seed germination and seedlings growth of paddy and banyard grass suwal et al. However, studies on the screening of a broad spectrum of plants for identifying their allelopathic potential are still limited. This weed is a perennial shrub belonging to the aster family which flourish in most soils and is found abundantly along road sides, on waste land.
Chromolaena odorata, that is not at all perceived as a weed in some areas of, e. The effect of chromolaena odorata siam weed on the. Uses, benefits, cures, side effects, nutrients in chromolaena odorata. The structure and composition of silver nanoparticles were analysed by xrd. Chromolaena odorata an overview sciencedirect topics. Pyrrolizidine alkaloids of chromolaena odorata act as nematicidal. Chromolaena odorata compost 1289 effect of different methods of chromolaena odorata compost preparation on the growth and yield of cucumber cucumis sativa in southwestern nigeria olaniyi, j.
Muniappan and jesse bamba agricultural experiment station university of guam mangilao, guam 96923 u. Chromolaena odorata belongs to the family of asteraceae. As to soil fertility, one species emerges above all the others. Department of agronomy, ladoke akintola university of technology, ogbomoso, nigeria. Coblentz 2002 defines an invasive species as one that has extensive recruitment into a population without human intervention. Names of chromolaena odorata in various languages of. Benefits of chromolaena odorata leaves however, as the time goes by, people began to know chemical medicines and doctors. It is used to treat diabetes and effective against the diarrhea strains. Biological control of riffid weed, chromolaena odorata asteraceae, in south africa,igric. Chromolaena odorata siamweed this plant can be weedy or invasive according to the authoritative sources noted below. Chromolaena odorata has long been referred to as eupatorium odoratum. Chromolaena odorata or siam weed is called ewe akintola or ewe awolowo, and obuinenawa by the yoruba and igbo tribe of nigeria respectively. Distribution, ecology and management of chromolaena. Larvicidal activity of methanolic leaf extracts of.
Hepatic effects of aqueous extract of chromolaena odorata. How chromolaena odorata is effective for various diseases is listed in repertory format. Allelopathic effects of chromolaena odorata on native and nonnative invasive herbs. Chromolaena odorata forms dense stands preventing establishment of other species, both due to competition and allelopathic effects.
Biofabrication of silver nanoparticles using leaf extract. Pdf allelopathic effects of chromolaena odorata on. Siam weed or chromolaena chromolaena odorata current potential siam weed or chromolaena chromolaena odorata siam weed or chromolaena chromolaena odorata the problem siam weed is on the alert list for environmental weeds, a list of 28 nonnative plants that threaten biodiversity and cause other environmental damage. Asteraceae synonyms as eupatorium odoratum is a traditional medicinal plant that is widely used for its wound healing property. However, at present there is only limited information available pertaining to the wound healing properties of. Chromolaena odorata is a fastgrowing perennial shrub, native to south america and central america. The article entitled effect of chromolaena odorata leaf extract on haematological profiles in salmonellae typhi infested wistar rats was published by nwankpa p, ezekwe as, ibegbulem co and. A abstract chromolaena odorata, a neotropical plant, has spread throughout humid tropical asia. Biological control of triffid weed, chromolaena odorata. Allelopathic treatment started on day 4 after mung bean being germinated and growth in order to allow the formation of roots and shoots of the seeds and later to observe the effect of each concentration of extract added as suggested by 23. Chromolaena odorata herb uses, benefits, cures, side. Allelopathic effects of aquaous extracts trom siam weed on the growth of. List of various diseases cured by chromolaena odorata.
Chromolaena odorata, dpph, minerals, phytochemicals, reducing power 1. Allelopathic effects of chromolaena odorata on native and nonnative invasive herbs article pdf available in journal of food agriculture and environment 111 january 20 with 1,334 reads. Effect of ethanolic extract of chromolaena odorata on the kidneys and intestines of healthy albino rats. It has been introduced into the tropical regions of asia, africa and the pacific, where it is an invasive weed. Physical removal of the basalroot ball is very efective invades creeks, riverbanks and remnant patches of rainforests. Efficacy of chromolaena odorata leaf extracts for the healing of rat. Effect of different plant extracts on number of fruits produced on tomato infected with early blight disease treatments no. Chemical composition of volatile oil from chromolaena odorata and its effect on plant, fungi and insect growth, china, ying yong sheng tai xue may, 2003, 744746. It eventually becomes more shrublike, producing long, rambling stems that can be 7 metres or more long.
It has been introduced to tropical asia, west africa, and parts of australia. Allelopathic effect of chromolaena odorata aqueous leaf extracts on seed germination and seedling growth of selected crop and pasture species in tanzania. King and robinson, an asteraceous shrub from the neotropical region, has become a major weed of crops, plantations and. Pdf chromolaena, or siam weed, is a serious problem in several tropical and subtropical areas around the world. Agricultural uiziversity, wageningen, the netherlands. Comparative allelopathic effect of imperata cylindrica and chromolaena odorata on germination and seedling growth of centrosema pubescens muhammad rusdy, muhammad riadi, ayu mita sari, asriani normal, hasanuddin university, makassar, indonesia. Antiinflammatory effects of fatty acids isolated from chromolaena odorata.
It was transferred to the genus chromolaena by king and robinson 1970, and although this conception of the tribe eupatorieae has met some disagreement among botanists, the new binomial of chromolaenaodorata l. Influence of environmental factors on seed germination and. Journal of biogeography 1991 18,23 the invasion of chromolaena odorata l. The allelopathic effect of the aqueous leaf extract of parthenium hysterophorus and chromolaena odorata on the seed germination, radicle and plumule growth of the seedlings of zea mays l. Comparative allelopathic effect of imperata cylindrica and. Uvvis absorption shows a characteristic absorption peak of silver nanoparticles at 450 nm.
The effect of chromolaena odorata siam weed on the haematological profile and growth doi. Plant database lady bird johnson wildflower center. A comprehensive coverage of the distribution and ecology of the plant can be found on the invasive species specialist group database. C2 1,2department of microbiologyabia state polytechnic, nigeria. Antimicrobial activity of chromolaena odorata against. Edwards, 1974, especially with respect to dormancy and the effect of shade. Chromolaena odorata and mikania micrantha on three bioassay weed species namely eleusine indica. Impacts of invasive chromolaena odorata on species richness, composition and seedling recruitment of shorea robusta in a tropical sal forest, nepal lal bahadur thapa1,3, krittika kaewchumnong1, aki sinkkonen2, and kitichate sridith1 1 department of biology, faculty of science, prince of songkla university, hat yai, songkhla, 90110 thailand. Allelopathic effects of chromolaena odorata on native and nonnative invasive herbs gang hu 1, 2 and zhonghua zhang 1, 2 1 school of chemistry and life science, guangxi teachers education. Invasion of chromolaena odorata in the lowveld region of swaziland and its effect on herbaceous layer productivity author solomon tefera, b. Chromolaena is a genus of about 165 species of perennials and shrubs in the family asteraceae. Chromolaena odorata is a tropical and subtropical species of flowering shrub in the sunflower family.
Preliminary study on allelopathic effect from chromolaena. Efficacy of selected plant extracts in the management of. Eupatorieae, commonly called chromolaena, is a sprawling shrub that has become one of the worst invasive terrestrial weeds in the humid tropics and subtropics of the old world figure 1. Materials and methods collection and preparation of chromolaena odorata leaf meal colm the leaf meal used for this study was prepared by cutting the stems of nearly matured and just maturing. Allelopathic effect of lantana camara and chromolaena. Invasive species there are numerous definitions of invasive species. Siam weed chromolaena odorata is a large upright, terrestrial plant 1. Members of the genus are native to the americas, from the southern united states to south america especially brazil. Evaluation of the allelopathic potential of fifteen common.
Materials and methods collection of samples the medicinal plant used in this study was the leaves chromolaena odorata siam weed. Phytochemical analysis, mineral composition and in vitro. Plants profile for chromolaena odorata jack in the bush. The leaves of lantana and chromolaena were left to dry under shade conditions for 48 hours.
Although it tolerates little partial shade, prefers well open areas. Issn composition of stem essential oil of chromolaena. It is used as a traditional medicinal plant to cure wounds, cuts, burns, soft tissue aberrations. Pdf allelopathic effect of chromolaena odorata aqueous. Also known as siam weed, it forms dense stands that prevent the establishment of other plant species. The wide therapeutic window of chromolaena odorata must not be compromised on a longer than necessary usage.
The positive effect of chromolaena root leachates on fusarium spores was attenuated by. Invasion of chromolaena odorata in the lowveld region of. King and robinson asteraceae is a prominent and dominant weed species in coconut plantations in sri lanka. Antioxidant properties of the leaves of chromolaena. After drying, the leaves were ground using electric blender the aqueous extracts of lantana and chromolaena leaves were.
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