Allelopathic Effects of Aqueous Extracts of Ricinus communis L. on the Germination of Six Cultivated Species

Saadaoui, Ezzeddine; Gómez, José Javier Martín; Ghazel, Naziha; Romdhane, Chokri Ben; Massoudi, Nouman; Cervantés, Emilio

doi:10.9734/ijpss/2015/16483

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…Such type of variation in performance and sensitivity among different plant species to allelochemicals, as observed in our study, has also been documented by other researchers (Callaway et al, 2005;Jensen and Ehlers, 2010). Saadaoui et al, (2015), documented differential rate of inhibition on germination rate and root growth of different species by aqueous extract of Ricinus communis L.…”

Section: Resultssupporting

confidence: 90%

Allelopathic Effect of Jatropha (Jatropha curcas) on Chilli (Capsicum annum) and Green Gram (Vigna radiata)

Baruah¹,

Das²,

Kotoky³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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Section: Resultssupporting

confidence: 90%

Allelopathic Effect of Jatropha (Jatropha curcas) on Chilli (Capsicum annum) and Green Gram (Vigna radiata)

Baruah¹,

Das²,

Kotoky³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…High antioxidant potential of plants could be a source of their allelopathicity as well (El-Gawad et al, 2019). Aqueous extracts of R. communis, T. aestivum, and S. bicolor have also been employed for weed suppression (Wu et al, 2001;Mahmood et al, 2013;Naz and Bano, 2014;Saadaoui et al, 2015;Renathielly et al, 2016;Al-Samarai et al, 2018;Eassa et al, 2018;Storozhyk et al, 2019), but their methanolic extracts have not been investigated as yet. Water extracts of different species of artemisia were also used as a bio-control agent against weeds (Lydon et al, 1997;Barney et al, 2005;Onen, 2013;Kapoor et al, 2019;Benarab et al, 2020); but allelopathy of A. santolinifolia is still to be established.…”

Section: Introductionmentioning

confidence: 99%

Bioherbicidal Activity and Metabolic Profiling of Potent Allelopathic Plant Fractions Against Major Weeds of Wheat—Way Forward to Lower the Risk of Synthetic Herbicides

et al. 2021

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The productivity of major field crops is highly compromised due to weed infestation. Inefficient weed management practices and undue and excessive use of chemical herbicides have drastically contaminated the environment and human health, in addition to resistance development in weed species. Therefore, utilization of allelopathic plants to explore phytochemicals as potent organic alternatives to such chemical herbicides has become indispensable. The current study evaluates the comparative bio-herbicidal potential of methanolic extracts of castor (Ricinus communis), artemisia (Artemisia santolinifolia), wheat (Triticum aestivum), and sorghum (Sorghum bicolor) to suppress growth of major weeds, i.e., wild mustard (Sinapis arvensis), Italian ryegrass (Lolium multiflorum), and carrot grass (Parthenium hysterophorus). The results demonstrated a concentration-dependent effect on weeds’ growth. Overall, in vitro seed germination was reduced from 60 to 100% in response to 5% (w/v) extract concentration. Significant reduction in radicle length, hypocotyl length, and fresh biomass of the weeds was also observed. A strong inhibitory effect was seen in in vivo pot experiments, revealing that application of 10–20% methanolic extracts induced permanent wilting and substantial reduction in the chlorophyll content of weeds along with 20–80% increase in oxidative stress. Artemisia showed the most significant allelopathic effect, on account of highest phenolic and flavonoid contents, followed by castor, wheat, and sorghum, against S. arvensis, L. multiflorum, and P. hysterophorus, respectively. Phytochemical analysis, through high-performance liquid chromatography (HPLC), also exhibited a correlation between extract’s phytotoxicity and their antioxidant potential due to their major constituents (rutin, quercetin, catechin, gallic acid, vanillic acid, syringic acid, ferulic acid, p-hydroxy benzoic acid, p-coumaric acid, and sinapic acid), among the total of 13 identified in methanolic fractions. Comprehensive profiling of allelochemicals with liquid chromatography–mass spectrometry (LC-MS) determined 120, 113, 90, and 50 derivates of phenolic acids, flavonoids, and alkaloids, reported for the first time through this study, demonstrating significant allelopathic potential of the targeted plant fractions, which can be explored further to develop a sustainable bio-herbicidal formulation.

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“…Percentage of emerged seedlings (ESP) reduction (Figure 3A) is probably associated to the presence of phytochemicals in the aqueous extract which were released into the environment after application and they caused an allelopathic effect on the C. rotundus (Silva et al 2018). Indeed, secondary metabolites of R. communis leaves act against other plants, which makes its aqueous extract a promising alternative to be used in agroecological crops, especially because it is a natural product from plant metabolism (Saadaoui et al 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Root growth reductions due to AER concentrations (Figure 3K, 4B), occur because of allelopathic effects of bioactive substances extracts, such as ricin A, B and C, and ricinin, in addition to glycosides, and toxins (Saadaoui et al 2015). It is important to emphasize that the application of these extracts must be carried out with caution and it needs further studies to evaluate its spectrum of action so as not to bring risks to the dynamic agroecosystems balance.…”

Section: Discussionmentioning

confidence: 99%

“…Among plants that have allelopathic action, Castor bean (Ricinus communis L.) has been extensively researched due to its various constituents in leaves, stem, and seeds that cause allelopathic effects (Islam and Kato-Noguchi 2013;Saadaoui et al 2015). It is worth mentioning that environmental factors, such as light, may influence the allelopathic potential of plants, mainly due to their influence on plants biochemical composition.…”

Section: Introductionmentioning

confidence: 99%

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Allelopathy of Ricinus communis and light spectrum variation decrease emergence and growth of Cyperus rotundus

Ferraz

Costa²,

Dias³

et al. 2023

Biosci. J.

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Weeds negatively influence agricultural production. However, those losses depend on weed specie, its time of emergence, and period of interference on agricultural crops. Synthetic herbicides are commonly used to control these plants species; however, they may cause damage to the environment, human beings and animals health, and this problem justify the need to develop alternative bioherbicides. To evaluate the allelopathic potential of Ricinus communis (Castor bean) and light spectrum variation on the emergence and growth of Cyperus rotundus L., a trial was carried out in a protected environment with 15% of brightness reduction at the Center for Agricultural and Environmental Sciences at the Paraíba State University. Four aqueous extract concentrations of R. communis leaves were tested (0, 5, 10, and 15%) and four light spectrums variations (white, purple, blue, and red lights). Variables such as emergence, length, dry matter accumulation and growth rates of shoots and root of C. rotundus seedlings were assessed. Data were analyzed by normality test, analysis of variance, polynomial regression, and averages test. Soot and root emergence, length, and dry matter accumulation of C. rotundus seedlings were reduced due to the allelopathy caused by R. communis aqueous extract leaves (15% concentration) and under purple or red light spectrum radiation.

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Allelopathic Effects of Aqueous Extracts of Ricinus communis L. on the Germination of Six Cultivated Species

Cited by 9 publications

References 9 publications

Allelopathic Effect of Jatropha (Jatropha curcas) on Chilli (Capsicum annum) and Green Gram (Vigna radiata)

Allelopathic Effect of Jatropha (Jatropha curcas) on Chilli (Capsicum annum) and Green Gram (Vigna radiata)

Bioherbicidal Activity and Metabolic Profiling of Potent Allelopathic Plant Fractions Against Major Weeds of Wheat—Way Forward to Lower the Risk of Synthetic Herbicides

Allelopathy of Ricinus communis and light spectrum variation decrease emergence and growth of Cyperus rotundus

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