Germination and initial development of canola and radish submitted to castor leaves aqueous extracts

Rigon, Carlos Alberto Gonsiorkiewicz; Salamoni, Adriana Tourinho; Cutti, Luan; Aguiar, Adalin Cézar Moraes de

doi:10.14295/cs.v7i1.423

Cited by 3 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 2 shows that this variable was drastically reduced with increasing extract concentrations. Other studies have reported this relationship as well (RIGON et al, 2016). It is also observed that this variable was stimulated when leaf, stem, and root extracts of Agu6 was used in lower concentrations.…”

Section: Resultsmentioning

confidence: 53%

“…Although the small concentrations of the extracts act as inhibitors, some studies indicate that the allelochemicals can act as stimulants when present in lower concentrations. Gatti et al (2004), Ghayal et al (2007), and Rigon et al (2016) observed stimulation of germination of radishes when a lower concentration of Aristolochia esperanzae O. Kuntze extracts, Cassia uniflora L. leaves extracts, and Ricinus communis leaves extracts were used, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Leaf extracts in the same concentration stimulated the development of this structure. Rigon et al (2016) studied the allelopathic effect of aqueous extracts of castor leaves on radishes and noted that extracts at low concentrations stimulate the initial development of seedlings. According to the authors, this occurs as a defense mechanism of the seedlings; it increases cell division, and there is an increased sensitivity of the tissues.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Allelopathic effect of aqueous extracts of different organs of three sunflower cultivars on germination of radish

Rigon¹,

Salamoni²,

Aguiar³

et al. 2018

Biosci. J.

Self Cite

View full text Add to dashboard Cite

This study aimed to evaluate the allelopathic potential of aqueous extracts of different organs of three sunflower cultivars on the germination and initial development of radish. The study was conducted in a Laboratory of Plant Physiology of the Federal University of Santa Maria, Brazil. The design was completely randomized in a threefactor scheme with four replications. The first factor consisted of three sunflower cultivars: Olisun 3, Olisun 5, and Aguará 6. The second factor consisted of different organs: leaves, stems, and roots. The third factor consisted of the extracts concentrations: 0, 25, 50, 75, and 100%. The experimental unit (EU) used was gearboxes with two sheets of germitest paper that were moistened with the extracts. The EUs were placed in BOD germination chamber at 25 °C. Daily count of germinated seeds was performed. The radicle length and hypocotyl were measured on the 10 th day. The variables analyzed included germination (G); germination speed index (GSI); radicle length (RL); and hypocotyl length (HL). Sunflowers have allelopathic potential on the radish. The extract concentration of 75% of all organs and cultivars were sufficient to significantly reduce the variables. The allelopathic activity differs between organs (leaves, stems, and roots) and sunflower cultivars. The amount of allelopathic effects vary in the order of root, stem, and then leaf. Extracts from the roots showed the greatest allelopathic effect on germination and initial development on the radish; however, this depends on the cultivar used. Field studies should be performed to verify such allelopathic activities.

show abstract

Section: Resultsmentioning

confidence: 53%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Allelopathic effect of aqueous extracts of different organs of three sunflower cultivars on germination of radish

Rigon¹,

Salamoni²,

Aguiar³

et al. 2018

Biosci. J.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The performance of aqueous extracts of RC leaves has been previously demonstrated in inhibiting germination and early development of other plants, such as Brassica napus L . 27 , Raphanus sativus L . 27 , and Triticum aestivum L. 28 .…”

Section: Resultsmentioning

confidence: 99%

“… 27 , Raphanus sativus L . 27 , and Triticum aestivum L. 28 . Hydroalcoholic extracts of RC also completely inhibited the germination of Lepidum sativum L. and Echinochloa crus-pavonis L. and the seedling growth of L. sativum , Lactuca sativa L., Lolium multiflorum Lam., and E. crus-pavonis 29 .…”

Section: Resultsmentioning

confidence: 99%

Bioherbicidal potential of plant species with allelopathic effects on the weed Bidens bipinnata L.

Lopes

Morais

Lacerda

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Plant species with allelopathic effects against weeds have emerged as a potential strategy for the development of ecologically friendly bioherbicides. In this study, the allelopathic effects of the plant species Dipteryx lacunifera Ducke, Ricinus communis L., Piper tuberculatum Jacq., and Jatropha gossypiifolia L. on the weed Bidens bipinnata L. were investigated. In vitro bioassays revealed that aqueous extracts of selected plant species were able to inhibit seed germination and seedling growth of B. bipinnata, highlighting the strongest allelopathic effect evidenced by R. communis. The phytotoxicity of the aqueous extracts was evaluated in pot experiments, which indicated that the foliar application of R. communis and P. tuberculatum extracts on B. bipinnata plants caused yellowing of leaves, affecting the chlorophyll content and reducing growth. The discrimination of the plant extracts by attenuated total reflectance Fourier transform mid-infrared (ATR FT-MIR) spectroscopy combined with principal component analysis (PCA) indicated the presence of allelochemical compounds, such as phenolics and terpenoids, which may be associated with allelopathic activity. Overall, this study provides valuable information about the substantial allelopathic inhibitory effects of the plant species R. communis and P. tuberculatum on the weed B. bipinnata, which may be used for the development of eco-friendly bioherbicides.

show abstract

Allelopathic Effects of Lantana camara L. Leaf Aqueous Extracts on Germination and Seedling Growth of Capsicum annuum L. and Daucus carota L.

Alemayehu,

Chimdesa,

Yusuf

2024

Scientifica

View full text Add to dashboard Cite

Allelopathy is the chemical interactions between plants that might lead to either stimulation or inhibition of growth, community structure, and plant invasions. Lantana camara L. is a noxious invasive weed that negatively affects seed germination, seedling growth, and increases the mortality of the crop plant. The objective of this work was to assess allelopathic effect of L. camara leaf aqueous extract on germination and seedling growth of Capsicum annuum (pepper) and Daucus carota (carrot). The aqueous extract of Lantana leaf samples was used as a source of allelopathic effects. Data were collected for germination and seedling growth parameters. The result indicated that the highest concentration of the allelopathic extract (20 mg/L) has demonstrated significantly the highest germination inhibition rate GIR (60.00%), germination speed V (2.54 U/day) for D. carota as GIR (70.00%), mean germination time MGT (0.36 days), and GI (0.67%) for C. annuum seeds. The highest concentration of the allelopathic extract (20 mg/L) has recorded the highest plumule inhibition rate PIR (59.63%) and radical inhibition rate RIR (48.95%) for D. carota seeds, as well as PIR (27.47%) and RLR (79.49%) for C. annuum. The largest negative allelopathic index (−60.00% or allelopathic intensity of 60.00%) was recorded for D. carota seeds, whilst (−63.43% or allelopathic intensity of 63.43%) was recorded for C. annuum seed germination. For D. carota seed germination, the first principal component (PC1) has got high positive loads from GI (0.36), RLR (0.31), GR (0.34), allelopathic index AI (0.34), relative length of plumule RLP (0.24), and V (0.30). By contrast, PC1 for D. carota seed germination has got the highest negative component loads recorded by GIR (−0.34), PIR (−0.24), MGT (−0.35), and RIR (−0.31). In allelopathic effect on C. annum seed germination, the first principal component (PC1) has got high positive scores from relative length of radical RLR (0.31), RLP (0.33), germination rate GR (0.33), V (0.33), and AI (0.33). Likewise, the high negative component loads were recorded by GIR (−0.33), PIR (−0.33), RIR (−0.31), and MGT (−0.32). The result of the present study demonstrated that GIR, PIR, and RIR were directly related to negative allelopathic activity.

show abstract

Germination and initial development of canola and radish submitted to castor leaves aqueous extracts

Cited by 3 publications

References 16 publications

Allelopathic effect of aqueous extracts of different organs of three sunflower cultivars on germination of radish

Allelopathic effect of aqueous extracts of different organs of three sunflower cultivars on germination of radish

Bioherbicidal potential of plant species with allelopathic effects on the weed Bidens bipinnata L.

Allelopathic Effects of Lantana camara L. Leaf Aqueous Extracts on Germination and Seedling Growth of Capsicum annuum L. and Daucus carota L.

Contact Info

Product

Resources

About