Screening of allelopathic activity of common weed species occurring in agricultural fields

Kaliyadasa, Ewon; Jayasinghe, Sadeeka Layomi

doi:10.5897/ajar2018.13612

Cited by 4 publications

(5 citation statements)

References 27 publications

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“…Indeed, several studies have reported both H. suaveolens and U. lobata to exhibit allelopathic effects on other neighbouring plants in their invaded habitats ( Islam and Kato-Noguchi 2013 ; Poornima et al . 2015 ; Kaliyadasa and Jayasinghe 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Soil seed bank dynamics of two invasive alien plants in Nigeria: implications for ecosystem restoration

Akomolafe,

Rosazlina,

Omomoh

2024

AoB PLANTS

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The assessment of seed banks could provide useful hints towards ensuring restoration planning and invasive species management. In this study, the impacts of two invaders, Hyptis suaveolens and Urena lobata on the soil seed banks were investigated. We also assessed the seed characteristics of the invaders at the invaded sites. This was achieved using 10 sites each for H. suaveolens, U. lobata invaded habitats and non-invaded habitats making a total of 30 sites. We collected 200 soil samples in each habitat type. A seedling emergence method was used to determine the seed bank recruitment of both invasive plants. The diversity indices of the above-ground vegetation of sites invaded by the two plants were significantly lower than those of the non-invaded sites. Only two plant species emerged from the seed banks of H. suaveolens and five plants from those of U. lobata as compared with non-invaded sites where 53 species emerged. A larger portion of the seeds was located in the soil's lower layer at all the sites invaded by H. suaveolens while those of U. lobata and non-invaded sites were found in the upper layers and there are significant associations between the habitats . The lower soil layers of the two species have the highest percentage of viable seeds. These results help to understand more about the invasiveness of both species as related to their impacts on the seed banks and native vegetation. It also indicates that the native species that emerged from the invaded seed banks could be used for the restoration of the invaded habitats.

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Section: Discussionmentioning

confidence: 99%

Soil seed bank dynamics of two invasive alien plants in Nigeria: implications for ecosystem restoration

Akomolafe,

Rosazlina,

Omomoh

2024

AoB PLANTS

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“…It is mostly utilized for the characterization of plants (Misra and Srivastava 2016;Singh, 2016;Liu et al, 2017). This method is also utilized for the characterization of pathogens (Martinelli et al, 2015;Franco-Duarte et al, 2019) and insects (Braga et al, 2013;Snart et al, 2015) and weeds (Dahiya et al, 2017;Giri and Dhanalakshmi, 2018;Kaliyadasa and Jayasinghe, 2018).…”

Section: Chemotaxonomy and Chemosystematicsmentioning

confidence: 99%

Applications of Biotechnology for Characterization of Plants and Pests as the Key Components of Plant Protection and Production Strategies: A Review

Alemu

2020

Int J Appl Sci Biotechnol

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The second Sustainable Developmental Goals (SDG), among the seventeen SDG, is concerned with the pursuit of global food security and agricultural sustainability, which become the key to the success of the entire SDG. Whereas agricultural production and productivity are heavily threatened by the incidence of pests that inflict huge losses in various forms. This calls for prompt applications of biotechnology for the fast, accurate and reliable means for characterization of plant generic resources and pests as it is the pre-requisite and gateway for designing appropriate plant protection and production strategies. It is imperative that pests be identified properly so that judicious use of the literature can be made and sustainable management strategies can be implemented at the right stage. To this end, the application of biotechnology has made significant advances for reliable characterization of plant genetic resources as well as accurate diagnosis of pests, study of their genetic diversity and variability, detailed mechanisms of their transmission and evolutionary relationships. Accordingly, this review article covers the comprehensive account of the various molecular techniques, genome mapping and OMICS sciences utilized for characterization plants and pests that ultimately allow the detailed study of the biology and epidemiology of pests at any stage of their life cycle. The resulting data are eventually employed for enhancing successful implementation of sustainable plant protection and production strategies. In conclusion, the increasing projections of transboundary pests, environmental and abiotic factors together with the continuous scientific advancements and breakthroughs have made biotechnology to be an important engine of bioeconomy for generating invaluable products, processes and services. Int. J. Appl. Sci. Biotechnol. Vol 8(3): 247-288

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“…Several researchers have delineated allelochemicals as natural pesticides. Allelochemicals generally have a mode of action all completely different from artificial herbicides, being further merely and quickly degradable due to a shorter half-life, with relatively fewer group substituents and no unnatural ring structures (Dayan et al, 2009;Kaliyadasa and Jayasinghe, 2018).…”

mentioning

confidence: 99%

“…Phytochemicals have low or no toxicity to animals and useful insects, possess an array of activity with variable and various sites of action and have a relatively high degradation rate (Regnault et al, 2004;Kaliyadasa and Jayasinghe, 2018). Allelochemicals could influence very important physiological processes like respiration, chemical action, biological process and elongation, membrane liquidness, macromolecule biogenesis and activity of the many enzymes, and should additionally have an effect on tissue water standing (Cloyd, 2004;Papadopoulos et al, 2007).…”

mentioning

confidence: 99%

“…Many research works on allelopathy embraces analysis on allelopathic potential of plants genetic variations among cultivars to overpower crops and weeds, identification of allelochemicals, the status of allelopathy in ecosystems and therefore the prospects of exploitation allelopathic crops for weed management in field crops. Currently, in this review, the potential use of allelopathy as an alternative to pesticides for managing weeds, insect pests, and diseases, particularly in small-farm intensive agricultural systems (Weston and Duke, 2003;Kaliyadasa and Jayasinghe, 2018). Therefore, the most objective of this review paper was to assess the role of allelopathy in pest management and crop production.…”

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confidence: 99%

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The Role of Allelopathy in Pest Management and Crop Production – A Review

Wato¹

2020

FSQM

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Allelopathy may be a current ecological advance of interference between organisms that will use for handling unwanted plants, insect pests, and diseases in plants. In many crops, allelopathy are often used resulting crop rotation, victimization cover crops, mulching, crop dyspnoeal and plant extracts for ordinary insect pest management. Plant pathogens together with fungi, bacteria, viruses, and nematodes are responsible for great yield losses in several economically vital crops. Use of artificial agrochemicals as soil covering, foliar spray or seed dressing is that the preferred approach for the management of crop diseases in recent days. However, due to the adverse effects of those chemicals on health and environment, customers are presently tightened turn out, that is freed from these chemicals. Natural compounds derived from plants are a lot of environmentally safe than artificial chemicals. Several recent studies have shown that allelochemicals will effectively be used for the management of various plant pathogens. Allelopathy so offers a lovely environmentally friendly different to pesticides in agricultural pest management. Their biopotency is often increased by structural changes or the synthesis of chemical analogs supported them. Though the progress during this regard is slow, even so some promising results are returning and a lot of are expected within the future. This review makes an attempt to discuss these characteristics of allelopathy for the justifiable management of pests.

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Screening of allelopathic activity of common weed species occurring in agricultural fields

Cited by 4 publications

References 27 publications

Soil seed bank dynamics of two invasive alien plants in Nigeria: implications for ecosystem restoration

Soil seed bank dynamics of two invasive alien plants in Nigeria: implications for ecosystem restoration

Applications of Biotechnology for Characterization of Plants and Pests as the Key Components of Plant Protection and Production Strategies: A Review

The Role of Allelopathy in Pest Management and Crop Production – A Review

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