Allelopathic effect of aqueous extracts of three weed species on the growth and leaf chlorophyll content of bread wheat

Siyar, Saira; Majeed, Abdul; Muhammad, Zahir; Husnain, Ali; Inayat, Naila

doi:10.1016/j.chnaes.2018.05.007

Cited by 36 publications

(27 citation statements)

References 14 publications

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“…Advances in Agriculture reduced seed germination in P. vulgaris and O. sativa might be caused by the allelopathic stress of different extract concentrations resulting from different abnormalities in metabolic activities and cell division due to the effect of allelochemicals [44]. is is reported to affect the productivity of P. vulgaris and O. sativa in different farming systems, thereby lowering yields.…”

Section: Discussionmentioning

confidence: 99%

“…e seedling fresh weight is an important factor for a plant to withstand physical stresses from the environment [49]. erefore, affecting the fresh weight of the P. vulgaris and O. sativa may affect their ability to withstand harsh 51), Rawat et al [52], and Siyar et al [44]. Reduced chlorophyll content may negatively affect plant's ability to perform photosynthetic functions, hence lowers the chance to survive or compete with other neighboring plants [53].…”

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confidence: 99%

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Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa

Laizer

Chacha

Ndakidemi

2021

Advances in Agriculture

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Weeds with allelopathic effect have been reported to cause significant damage in agriculture particularly in smallholder farming systems. This study assessed the allelopathic effects of different concentrations of crude extract of a noxious weed Sphaeranthus suaveolens on seed germination and seedling growth of Phaseolus vulgaris and Oryza sativa by examining germination, seedling height, and total chlorophyll content after seven and fourteen days of crude extract treatment, respectively. Results showed that seed germination and seedling growth were significantly ( p < 0.001 ) decreased with increase in concentration of crude extract, signifying concentration dependency. Highest concentration (100%) of S. suaveolens crude extracts resulted in 90% and 100% inhibition of P. vulgaris and O. sativa seed germination, respectively. Chlorophyll content, fresh weight, and root and shoot length of both P. vulgaris and O. sativa were also significantly ( p < 0.001 ) affected by highest concentration (100%) of S. suaveolens crude extracts. Results from this study suggest that the extract of S. suaveolens contains water-soluble allelochemicals which significantly reduce growth and productivity of P. vulgaris and O. sativa.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa

Laizer

Chacha

Ndakidemi

2021

Advances in Agriculture

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“…At this time, we believe there are no research reports on the allelopathic effect of teff on different weed species. Most reports have focused on the allelopathic effect of certain plant species on teff [19,20,[35][36][37][38][39][40][41][42][43]. For example, leaf extracts from different eucalyptus species and Parthenium hysterophorus had an effect on the germination and early growth of teff [19,20].…”

Section: Discussionmentioning

confidence: 99%

Allelopathic Potential of Teff Varieties and Effect on Weed Growth

et al. 2020

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Allelopathic potential of 10 teff varieties was assessed in laboratory experimentation (conducted in NIBIO, Norway), and determined with an agar-based bioassay using ryegrass and radish as model weeds. Field experiments were conducted in Tigray, Ethiopia during 2015 and 2016 to identify the most important agronomic traits of teff contributing to its weed competitive ability. A split plot design with three blocks was used considering hand weeding as the main plot and varieties as the subplot. Randomized complete block design (RCBD) with four blocks was used in the laboratory experiment. The highest potential allelopathic activity (PAA) and specific potential allelopathic activity (SPAA) were recorded from a local landrace with an average PAA value of 11.77% and SPAA value of 1.21%/mg respectively, when ryegrass was used as the model weed. ‘Boset’ had the highest average PAA value of 16.25% and an SPAA value of 1.53%/mg, when using radish as the model weed. The lowest PAA and SPAA values were recorded from ‘DZ-Cr-387′ when using ryegrass and radish as model weeds. Days to emergence, height, tiller no./plant, biomass yield, and PAA of the crop significantly contributed to the variance of the weed biomass, cover, and density. Hence, they were the most important agronomic traits enhancing the competitive ability of teff.

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“…It was withal discerned that hot water extracts, especially from leaves, had a more inhibitory effect than methanolic and rain leachates extracts. These inhibitory substances are perceived to affect physiological, biochemical and enzymatic activities of the target plants (Majeed et al, 2017;Siyar et al, 2019). It is suggested that allelopathic stress corresponds to the production of reactive oxygen species (ROS) which in turn could modify the antioxidant mechanisms like catalase, superoxide dismutase, and peroxidases and in target plants with subsequent effects on membrane permeability and cell damage (Weir et al, 2004;Cai et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Suppressive effect of Populus nigra L. leaves on germination and growth competence of Triticum aestivum L.

Inayat¹,

Muhammad²,

Khan³

et al. 2019

PAK.J.BOT.

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A laboratory experiment was conducted to evaluate the allelopathic potential of Populus nigra leaves in different guided bioassay on the germination and growth of four different wheat varieties i.e. Ghaznavi, Siran, Atta Habib, and Janbaz. All the extract had differential toxicity against all the four wheat varieties. Hot water extract was observed to be inhibitory than methanolic and rain leachate extract obtained. Furthermore, litter and mulching experiments had also inhibitory effects on the studied parameters. Suppressive effects were linearly correlated with extract concentration. Growthsuppressive effects of the guided-assay were recorded in the order hot water extracts ˃ methanolic extracts ˃ rain leachate extracts. It is suggested that P. nigra leaves possess phytotoxic activities, and further investigations are therefore required against challenging weeds. Filed experiments may be carried out to further expand the perceived allelopathic activities of P. nigra on other crops.

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Allelopathic effect of aqueous extracts of three weed species on the growth and leaf chlorophyll content of bread wheat

Cited by 36 publications

References 14 publications

Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa

Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa

Allelopathic Potential of Teff Varieties and Effect on Weed Growth

Suppressive effect of Populus nigra L. leaves on germination and growth competence of Triticum aestivum L.

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