Allelopathic effects of Ipomoea cairica (L.) Sweet on crop weeds

Takao, Leandro Kenji; Ribeiro, Jose Pedro Nepomuceno; Lima, Matheus P.

doi:10.1590/s0102-33062011000400012

Cited by 22 publications

(11 citation statements)

References 12 publications

(11 reference statements)

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“…Additionally, they are more effective against B. pilosa germination compared to that of I. cairica [29]; however the concentration used in the present study was lower than the I. cairica extract. The allelochemicals inhibited germination perhaps by affecting the cell division and elongation process that are very important at this stage or by interfering with oxidative enzymes [31] involved in the mobilization of nutrients necessary for germination [6,24] or by increasing ion leakage by altering membrane permeability [32].…”

Section: Discussionmentioning

confidence: 60%

“…Moreover the germination inhibition of B. pilosa increased with the increase in the extracts concentration [5,[24][25][26]. Many plant species showed inhibitory effects on B. pilosa germination such as Cajanus cajan, maize roots and rice husks [27], Lantana camara [28] and Ipomoea cairica [29]. In addition, many identified allelochemicals had inhibitory effects on B. pilosa germination such as eugenol [30] and parthenin [1].…”

Section: Discussionmentioning

confidence: 99%

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Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

El-Gawad

Mashaly²,

Ziada³

et al. 2015

Egyptian Journal of Basic and Applied Sciences

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Available online A B S T R A C TPlantago genus has a wide geographical distribution all over the world. It has been widely used in folk medicine for various purposes, where it is used as anti-inflammatory, antimicrobial and antitumor agent. In this research, total phenols, tannins, saponins, flavonoids and alkaloids were determined in Plantago lagopus, Plantago major and Plantago squarrosa.Furthermore, concentrations of 2.5, 5, 7.5 and 10 mg ml −1 of both alcoholic and aqueous extracts were prepared to study their phytotoxic effect on the germination and seedling growth of the noxious weed Bidens pilosa. P. major expressed the highest values of total phenolics, tannins and flavonoids. However, P. lagopus has the highest content of alkaloids. The germination of B. pilosa was completely inhibited under treatment of P. lagopus and P. major methanolic extracts at 7.5 mg ml −1 and 10 mg ml −1 , respectively. However, the allelopathic effect of P. lagopus aqueous extract showed a complete inhibition of B. pilosa germination followed by P. major. The germination inhibition of B. pilosa increased with the increase in the extracts concentration. In addition, both radicle and plumule were strongly inhibited under the same treatment. Our results showed a potent allelopathic effect on B. pilosa that could be valorized in managing this noxious weed as an ecofriendly bio-control method.However, other studies are needed for the identification, characterization of the responsible allelochemicals and for the demonstration of their modes of action. Production and hosting by Elsevier B.V. on behalf of Mansoura University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/).

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Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 99%

Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

El-Gawad

Mashaly²,

Ziada³

et al. 2015

Egyptian Journal of Basic and Applied Sciences

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“…Nevertheless, SCH also activated less levels of allelopathy on the germination speed and vitality of lettuce than SCL. Probably the most important factor for the positive effects of SCL on the seedling growth performance of lettuce may be due to the hormonal effects [53][54][55][56]. Consequently, SCH generated more allelopathy on the seedling growth performance of lettuce but SCL mediated more allelopathy on the seed germination performance of lettuce.…”

Section: Discussionmentioning

confidence: 99%

“…Hence, SCL promoted the seedling growth performance of indigenous species to some extent. The most likely factor may be the induced reactive oxygen molecules in plant cell extension mediated by the allelochemicals recruited by SCL which can stimulate the seedling growth performance of lettuce [53][54][55][56]. Thus, goldenrod with light invasion degree could instigate slight pressure on the growth performance of indigenous species and thereby cause an optimistic drive for their seedling growth performance [8,9,57].…”

Section: Discussionmentioning

confidence: 99%

Drought Enhanced the Allelopathy of Goldenrod on the Seed Germination and Seedling Growth Performance of Lettuce

Wu¹,

Wu²,

Cheng³

et al. 2020

Pol. J. Environ. Stud.

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Invasive alien species (IAS) can distinctly inhibit seed germination and seedling growth performance (SGeSGrP) of indigenous species via the allelopathy. The progressively increased drought stress can potentially affect the allelopathy of IAS. Thus, it is significant to illustrate the allelopathy of IAS on SGeSGrP of indigenous species under drought stress to obtain a deeper elucidation for the main driving mechanism attributed to the successful invasion. This study attempts to identify the allelopathy of IAS Solidago canadensis L. (goldenrod; using leaf extracts) on SGeSGrP of the indigenous species Lactuca sativa L. (lettuce) under drought stress [mimicked by Polyethylene glycol-6000 (PEG 6000)]. Goldenrod leaf extracts (low concentration) obviously reduced seed germination performance of lettuce but goldenrod leaf extracts (high concentration) notably reduced seedling growth performance of lettuce. Goldenrod leaf extracts (low concentration) also interestingly awarded an optimistic effect on the competitive ability for sunlight acquisition as well as water and inorganic salt acquisition, plant growing ability, and plant water content of lettuce. PEG 6000 dramatically inhibited the competitive ability for sunlight acquisition as well as water and inorganic salt acquisition of lettuce. PEG 6000 also noticeably enhanced the allelopathy of goldenrod leaf extracts on the germination speed and vitality, competitive ability for sunlight acquisition as well as water and inorganic salt acquisition, leaf photosynthetic area, and plant growing ability of lettuce. Thus, drought stress may be advantageous to the advance of goldenrod invasion process mainly via the oppressed SGeSGrP of indigenous species mediated by the enhanced allelopathy.

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“…This finding may also be ascribed to the low concentration of allelopathic compounds released by invasive plants, which stimulated the reactive oxygen molecules in plant cell extension and then promoted growth of native species (Prithiviraj et al 2007, Duke et al 2006. Briefly, the low concentration of allelopathic compounds released by invasive species may exert weak stress on plant species; hence, native species adapted to this change and thereby there are stimulatory effects on the growth of native species triggered by the low concentration of allelopathic compounds of invasive plants (Hossain et al 2016), namely hormesis effects (Viator et al 2006, Takao et al 2011. Thus, it is not surprising that A. retroflexus leaf extracts promoted the aboveground growth of A. tricolor in this study.…”

Section: Discussionmentioning

confidence: 67%

N deposition affects allelopathic potential of Amaranthus retroflexus with different distribution regions

Wang

Liu

Zhou

2017

An. Acad. Bras. Ciênc.

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This study aims to determine the allelopathic potential of Amaranthus retroflexus (Ar) with different climatic zones on seed germination and growth of A. tricolor (At) treated with a gradient N addition. Ar leaf extracts only displayed significantly allelopathic potential on the underground growth of Ar but not the aboveground growth of At. The allelopathic potential of Ar leaf extracts on root length of At were enhanced under N addition and there may be a N-concentration-dependent relationship. The effects of the extracts of Ar leaves that collected from Zhenjiang on seed germination and growth of At may be higher than that collected from Jinan especially on root length of At under medium N addition. This reason may be the contained higher concentration of secondary metabolites for the leaves of plants that growths in high latitudes compare with that growth in low latitudes. This phenomenon may also partly be attributed to the fact that Ar originated in America and/or south-eastern Asia which have higher similarity climate conditions as Zhenjiang rather than Jinan. The allelopathic potential of Ar on seed germination and growth of acceptor species may play an important role in its successful invasion especially in the distribution region with low latitudes.

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Allelopathic effects of Ipomoea cairica (L.) Sweet on crop weeds

Cited by 22 publications

References 12 publications

Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

Phytotoxicity of three Plantago species on germination and seedling growth of hairy beggarticks (Bidens pilosa L.)

Drought Enhanced the Allelopathy of Goldenrod on the Seed Germination and Seedling Growth Performance of Lettuce

N deposition affects allelopathic potential of Amaranthus retroflexus with different distribution regions

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