Allelopathic effects of Lantana camara on germination and growth behavior of some agricultural crops in Bangladesh

Institute of Forestry and Environmental Sciences (IFES), Chittagong University, 4331, Chittagong, Bangladesh
Journal of Forestry Research 12/2007; 18(4):301-304. DOI: 10.1007/s11676-007-0060-6


An experiment was conducted to understand the growth inhibitory effects of aqueous extracts derived from Lantana camara L. (a globally recognized invasive alien weed) on six popular agricultural crops of Bangladesh. The test was conducted in sterilized pet-ridishes with a photoperiod of 24 hours and an average temperature of 29°C. The effect of different concentrations of L. camara leaf ex-tracts were recorded and compared with control (i.e., distil water). Result showed different concentrations of aqueous leaf extracts caused significant inhibitory effect on germination, root and shoot elongation and development of lateral roots of receptor crops. Bioassays also indicated that the inhibitory effect was proportional to the concentrations of the extracts and higher concentration had the stronger inhibi-tory effect whereas the lower concentration showed stimulatory effect in some cases. The inhibitory effect was much pronounced in root and lateral root development rather than shoot and germination.

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Available from: Romel Ahmed,
    • "Similarly, Lantana camara L., an obnoxious weed, is a great threat to land productivity, grazing livestock, biodiversity and consequently to the overall ecology. The fresh pine needle and lantana are reported to suppress plant growth due to allelopathic effect (Baroniya & Baroniya, 2014; Ahmed et al. 2007). It constraints their direct recycling in limited crop area in the regions of their origin and cost involved in collection and transportation of huge biomass at application "

    Archives of Agronomy and Soil Science 11/2015; DOI:10.1080/03650340.2015.1118760 · 0.55 Impact Factor
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    • "Aqueous leaf extract of L. camara produced inhibitory effect on growth of Parthenium hysterophorus [12] and caused significant inhibitory effect on germination , root and shoot elongation and development of lateral roots of six popular agricultural crops [13]. Additionally , allelopathic effects of L. camara on germination and seedling vigor of many agricultural crops, such as rice [14] [15], wheat [16] [17] and soybean [18] have been reported. "
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    ABSTRACT: The effect of cold and hot aqueous leaf extracts of Lantana camara L. on the germination and seedling growth of Phalaris minor Retz. and Sorghum bicolor L. (Moench) was evaluated. Bioassays indicated that the inhibitory effect of the allelopathic plant on the germination percentage (GP), inhibition percentage (IP) and seed germination index (SGI) of the two recipient weed species was proportional to the concentration of the extract. High concentrations had stronger inhibitory effect than low concentrations that showed no stimulatory effect on both species. Both plumule (PL) and radicle (RL) lengths of the recipient species were affected negatively due to the addition of L. camara extracts and this effect was directly proportional to the concentration and more significant in the case of the radicle of P. minor compared with S. bicolor. Our results suggested that L. camara aqueous extract could be used as a potential allelopathic substance for some weed bio-control.
    04/2013; 7(2):64–71. DOI:10.1016/j.jtusci.2013.04.004
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    • "The harmful aspects are presented in Table 1. Ahmed et al. (2007) studied the growth inhibitory effects of aqueous extracts of L. camara L. on six popular agricultural crops of Bangladesh. Result showed different concentrations of the aqueous leaf extracts caused significant inhibitory effect on germination , root and shoot elongation and development of lateral roots of receptor crops. "
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    ABSTRACT: L. camara is a terrible weed, exerting huge detrimental effect on biodiversity. Its leaves and flowers contain toxins, lantadene A and B, so unfit for herbivory by ruminants. This weed stunts the growth of neighbouring plants owing to the allelopathic effect of its root leachate. The seeds tide over adverse period and germinate when favourable conditions prevail. Further, pruning makes the thicket denser. Almost all removal strategies of this weed have been unsuccessful so far. So, management of this weed by utilization is required. Recent studies have reported that L. camara improves soil quality by enriching it with nitrogen, exhibits termiticidal effect, acts as lignocellulosic substrate for cultivation of edible mushrooms, acts as potential insecticide and fumigant for grains storage against weevils, antifungal agent, herbicide against water hyacinths. L. camara has bioactive ingredients exhibiting anticancer, antiulcerogenic, hypolipidemic, larvicidal and anti-inflammatory activity. L. camara fibre has been reported to be suitable candidate as reinforcement in biomaterials. Also, this plant extract is effective in bovine dermatophilosis therapy. L. camara has also immense industrial importance, as a source of oleanolic acid and carboxymethylcellulose. L. camara biomass can be implicated as a substrate for bioethanol and biogas production. This invasive weed can also serve as livelihood options, as the woody twigs can be utilized for aesthetic and durable furniture making apart from the use as firewood. The latest published papers on the novel uses of L. camara have been reviewed, with the objective of providing a thrust to weed management by utilization.
    Reviews in Environmental Science and Bio/Technology 12/2011; 10(4). DOI:10.1007/s11157-011-9254-7 · 3.33 Impact Factor
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