Effect of aqueous extract and compost of invasive weed Ageratina adenophora on seed germination and seedling growth of some crops and weeds

Das, Mbb; Acharya, BD; Saquib, Mohammad; Chettri, M.

doi:10.3329/jbcbm.v4i2.39843

Cited by 13 publications

(8 citation statements)

References 5 publications

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“…The results of some of the previous studies are in support of the findings of our study. For example, Das et al (2018) tested the effect of this weed on seed germination and seedling growth of some crop plants and weeds 31 . The crop plants were Triticum aestivum and Brassica campestris and the weeds were Ageratum conyzoides, Bidens pilosa, Galinsoga parviflora and Cyperus rotundus .…”

Section: Discussionmentioning

confidence: 99%

Phytotoxic effects of invasive Ageratina adenophora on two native subtropical shrubs in Nepal

Darji

Adhikari

Pathak

et al. 2021

Sci Rep

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The response of native plants to allelopathic interference of invasive species may differ from species to species. In this study, the phytotoxic effects of Ageratina adenophora were tested on two native shrubs (Osbeckia stellata and Elsholtzia blanda) of Nepal. Both the shrubs were grown in pots under treatments of A. adenophora fresh leaves and root leachates, and litter. Then, the seedling length and biomass were compared among the treatments. The results show that A. adenophora litter has stimulatory effects but the leachates from fresh leaves and root are phytotoxic to the growth and development of native shrubs. Infrared Spectroscopy (IR) analysis confirmed the presence of O–H (Hydroxyl), N–H (Amines), C≡C (Alkynes), and C–H stretching (Aromatic) or C–O–C stretching (Ethers) in the leachates representing harmful allelochemicals. The invaded soil by A. adenophora had low pH and a high amount of organic matter, total nitrogen, phosphorus, and potassium than the uninvaded soil. The results indicate that the native O. stellata and E. blanda are harmed by A. adenophora in nature by leaching of allelochemicals and probably by reducing the soil pH. Overall, this study has provided valuable insights regarding the effects of A. adenophora invasion on native shrubs and revealing the potential mechanism of its invasiveness.

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Section: Discussionmentioning

confidence: 99%

Phytotoxic effects of invasive Ageratina adenophora on two native subtropical shrubs in Nepal

Darji

Adhikari

Pathak

et al. 2021

Sci Rep

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“…The soil amended compost of Ageratina adenophora an invasive weed and allelopathic species has reduced seed germination and seedling growth of Triticum aestivum and Brassica campestris. And the study says that it might be due to the allelochemicals released by Ageratina plant residues in the soil (Das et al 2018).…”

Section: Germination Percentagementioning

confidence: 99%

“…For instance, the raw and composted extracts of Ageratina adenophora have inhibited seedling germination and growth in rye grass (Wang et al 2020;Jiao et al 2021), maize (Ma et al 2020), and Rice (Yang et al 2011). These biochemicals are released from plants due to different processes such as leaching, volatilization, exudation and decomposition found in seed germination and seedling growth of surrounding plants (Das et al 2018). So, during the composting process since the plants undergo complete decomposition, there are chances for the release of these allelochemicals.…”

Section: Introductionmentioning

confidence: 99%

Impact of Organic Compost Prepared From Different Plant-Based Residues on Seed Germination and Early Seedling Growth Performance of Vigna Radiata (L.) Wilczek

Nair

Nath

Siddhuraju

2022

Preprint

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The investigation was aimed to study the physio-chemical characteristics and evaluation of the quality of three different organic composts (Plant compost, Coir pith compost and Vermi compost) made by local and standard preparations. All the organic composts were prepared from different feedstocks/raw materials. All the physiochemical parameters and mineral analysis of the compost samples were done using standard methodologies. An early seedling growth performance study was also carried out using Vigna radiata seeds in respective compost samples to find out the maturity and quality of the composts as a growth substrate and for wider application in agriculture. All the organic composts had variations in their physiochemical characters and growth performance of seedlings in the treatments. Except for standard plant compost, where no germination was seen, all the other composts exhibited germination. No higher levels of heavy metals were identified in any of the samples. The outputs of the present study could be due to elevated pH and electrical conductivity of the compost, and also maybe of the allelopathic potential of the compost since it is plant-based compost. Therefore, before advocating any organic compost into fields, physiochemical characteristics and quality of the composts should be ensured so that it won’t affect the soil quality undesirably and also the plant nutrition.

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“…The potential use of IAPs in ethnomedicine and various aspects of ethnobotany in Africa have received a great deal of attention (e.g., Omokhua et al, 2016Omokhua et al, , 2018a however, studies on the use and potential of invasive alien plants as pesticidal plants to manage agricultural and environmental pests is only beginning to gain recognition (e.g., Midega et al, 2016;Mkindi et al, 2017;Stevensona et al, 2017;Uyi et al, 2018a,b). Since some IAP's contain some novel secondary phytochemicals, the harvested materials may be processed to be used against microorganisms, insects and weeds and other undesired plants (Deressa et al, 2015;Amir et al, 2017;Mkindi et al, 2017;Das et al, 2018;Zerihun and Ele, 2018;Mugwedi, 2020). Like other pesticides, biopesticides may repel insect pests, disrupt their development, affect reproduction or kill live organisms on contact (Mogg et al, 2008;Litt et al, 2014;Uyi and Adetimehin, 2018).…”

Section: Introductionmentioning

confidence: 99%

Invasive Alien Plants in Sub-Saharan Africa: A Review and Synthesis of Their Insecticidal Activities

et al. 2021

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Despite the cornucopia of agricultural, economic and ecological ramifications of invasive alien plant species (IAPs) in sub-Saharan Africa, studies on their potential use as bio-insecticides have not received adequate attention compared to the burgeoning plethora of literature on their use in ethnomedicine. In the current study, we review the existing, but scattered literature on the insecticidal activity of different parts of some IAPs; specifically those invasive in sub-Saharan Africa but with published literature from Africa and elsewhere. From our literature survey, we found that 69 studies from four continents (Africa, Asia, North America and South America) reported the insecticidal activity of 23 plant species from 13 families (Asteraceae = 6 species; Solanaceae = 3 species; Apocynacee, Fabaceae and Euphorbiaceae 2 species each; Araceae, Bignoniaceae, Chenopodiaceae, Meliaceae, Mimosaceae, Myrtaceae, Papaveraceae, and Verbenaceae = 1 species each) that are invasive in, and alien to Africa. The highest number of published case studies were from India (n = 19) and Nigeria (n = 15). We found that varying concentrations of extracts or powders from different plant parts caused 50–100% mortality against a myriad of insect pests of agriculture and environmental importance. Our review discussed the prospects for exploiting IAPs as pesticidal plants in African countries especially among resource-poor small-holder farmers and locals to improve agricultural productivity and livelihoods. Finally, we highlighted safety concerns and challenges of using IAPs as bio-insecticides in Africa and formulates appropriate recommendations for future research.

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Effect of aqueous extract and compost of invasive weed Ageratina adenophora on seed germination and seedling growth of some crops and weeds

Cited by 13 publications

References 5 publications

Phytotoxic effects of invasive Ageratina adenophora on two native subtropical shrubs in Nepal

Phytotoxic effects of invasive Ageratina adenophora on two native subtropical shrubs in Nepal

Impact of Organic Compost Prepared From Different Plant-Based Residues on Seed Germination and Early Seedling Growth Performance of Vigna Radiata (L.) Wilczek

Invasive Alien Plants in Sub-Saharan Africa: A Review and Synthesis of Their Insecticidal Activities

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