Phytotoxic Effects of Leaf Leachates of Invasive Weeds Cosmos sulphureus and Xanthium strumarium on Agricultural Crops

Ghayal, Nivedita; Biware, Megha; Gharpure, Pallavi

doi:10.13005/bbra/2691

Cited by 3 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The level of protein as well as amino acids has been reported to be reduce under allopathic impact El-Shora et al(2022). Protein degradation suppress the absorption as well as transportation of amino acids that results in interrupted protein synthesis(Ghayal et al 2011;Thapar 2012;Huang et al 2013;Lee et al 2016). The allelochemicals (mainly phenolic compounds) get accumulated in the plant cell and may interfere with the cytoplasmic ribosomes, and RNA formation, which results in low protein synthesis(Hegab and Ghareib 2010).…”

mentioning

confidence: 99%

Applied powdered leaf-biomass of alien weed Hyptis suaveolens (L.) Poit. in soil adversely impacts germination, growth, and yield of crop Lens culinaris Medik. despite enhancing soil fertility

LOMAS,

ANJALI,

AGRAWAL

et al. 2024

Preprint

View full text Add to dashboard Cite

Hyptis suaveolens L. (family Lamiaceae), an exotic fast-spreading invasive weed in Indian dry-tropics, was investigated for the allelopathic impact of its powdered leaf-biomass on the seed germination, growth, yield, photosynthetic-pigments and biochemical parameters (protein, proline and phenolic content) of the crop Lens culinaris. Soil characteristics (organic carbon, total nitrogen, available phosphorous and phenolic content) of soils amended with powdered leaf-biomass were also examined in this study. Soils were amended with differing doses (1g, 2g, 4g and 8g kg− 1 soil) of powered leaf-biomass of the investigated weed. Lentil seed germination distinctly declined in soils amended with higher doses of powdered leaf-biomass. Crop growth, including its yield, significantly declined with increasing dose of powdered leaf-biomass. Compared to control, chlorophylls (a and b), carotenoids and protein content decreased significantly at varying growth stages of lentil with increasing dose. In contrast, proline and phenolic content in lentil crop significantly increased with increasing doses. The allelopathic index and synthesis effect of powdered leaf-biomass increased with increasing doses and it was significantly higher at the higher dose (8g kg− 1 soil). Thirty-five chemical compounds were GCMS-identified from the leaf extract of this weed. The identified compounds were mainly alkaloids, terpene, phenolics and fatty acids. Organic carbon, total nitrogen and phenolic content of the variously amended-soils increased significantly with increasing applied powdered leaf-biomass. In conclusion, powdered leaf-biomass of the Hyptis suaveolens, despite improving soil fertility, adversely impacted crop growth and its biochemical attributes, ostensibly through the release of allelochemicals, implying its immense invasibility in diverse ecosystems of India.

show abstract

mentioning

confidence: 99%

Applied powdered leaf-biomass of alien weed Hyptis suaveolens (L.) Poit. in soil adversely impacts germination, growth, and yield of crop Lens culinaris Medik. despite enhancing soil fertility

LOMAS,

ANJALI,

AGRAWAL

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Germination Study of Some Protein-Based Gels Obtained from By-Products from the Leather Industry on Tomato and Pepper Seeds

Cristea,

Niculescu,

Perisoara

et al. 2024

Gels

View full text Add to dashboard Cite

This study aimed to evaluate the biostimulant effects of three protein-based gels, GHC 1-B (20% gelatin (GPU-B) obtained by thermal hydrolysis from residual untanned leather and 80% collagen hydrolysates (HCE-B) obtained by alkaline–enzymatic hydrolysis from residual bovine-tanned leather), GHC 2-B (40% keratin hydrolysate (HKU-B) obtained by alkaline–enzymatic hydrolysis from sheep wool + 40% HCE-B + 20% GPU-B), and GHC 3-B (20% GPU-B + 80% hydrolyzed collagen (HPU-B) obtained by thermal and enzymatic hydrolysis from residual untanned leather). A germination study was carried out on pepper and tomato seeds at concentrations of 1%, 3%, and 10%. As a result of the study, it was found that all three protein-based gels showed a stimulatory effect on the tomato seeds at a 1% concentration, where the Gi (germination index) was ˂100%. The GHC 2-B variant had the highest stimulatory effect (Gi-190.23%). Pepper seeds have proven to be more sensitive to the gel’s composition. The concentration at which it proved to be non-inhibitory (Gi–88.29%) was 1% in the case of GHC 2-B. It was found that the presence of hydrolyzed keratin in the composition can be a plus compared to the other two protein gels tested due to its composition, which is richer in phytonutrient compounds (e.g., sulfur molecules).

show abstract

The Study of Some Fenugreek Extracts by Germination Bioassay

Perisoara¹,

Tihăuan²,

Pîrvu³

et al. 2023

RAR

View full text Add to dashboard Cite

Since the constant use of traditional pesticides can have long-term adverse effects on human health, the environment and the fact that pests can develop resistance to them, it is of interest to develop natural alternatives with a role to protect plants and crops. Such an alternative would be the use of phytochemical compounds, with an antioxidant role, found in fenugreek seeds. This research paper aimed to evaluate the effect of three types of extracts obtained from fenugreek seeds (Trigonella foenum-graecum) on radish seeds through the germination bioassay. The extracts were obtained in three different organic solvents (ethanol 70%, propylene glycol - PG-50% and ethanol 40%), the phenolic profile was analyzed using the Folin Ciocalteu method and the antioxidant activity by the DPPH bioassay. The results showed that the variant in 40% ethanol was superior regarding the content of total polyphenols (TPC) and flavonoids (TFC) (2.667 CAE mg/ml and 3.199 RE mg/ml) compared to the extract variants obtained in 70% ethanol (1.635 CAE mg/ml and 1.863 RE mg/ml) and PG 50% (2.072 CAE mg/ml and 2.147 RE mg/ml), what particularly influenced the antioxidant activity. The Fenugreek extract in ethanol 40% has a higher redox potential compared to the other extract variants tested in our study. The phytotoxic profile of the extracts was achieved by applying the radish (Raphanus sativus) seed germination bioassay. According to the results obtained, the extracts in 40% ethanol showed moderately phytotoxic activity at the concentrations of 0.50% and 1.0% and strongly phytotoxic at the concentration of 1.5% extract, while the extract variant in 70% ethanol, showed moderately phytotoxic activity at the first three concentrations tested and a strong phytotoxic effect at the concentration of 1.5%; in the case of the extract obtained in PG, no phytotoxic activity was recorded on the tested seeds, the Gi being >80%.

show abstract

Phytotoxic Effects of Leaf Leachates of Invasive Weeds Cosmos sulphureus and Xanthium strumarium on Agricultural Crops

Cited by 3 publications

References 7 publications

Applied powdered leaf-biomass of alien weed Hyptis suaveolens (L.) Poit. in soil adversely impacts germination, growth, and yield of crop Lens culinaris Medik. despite enhancing soil fertility

Applied powdered leaf-biomass of alien weed Hyptis suaveolens (L.) Poit. in soil adversely impacts germination, growth, and yield of crop Lens culinaris Medik. despite enhancing soil fertility

Germination Study of Some Protein-Based Gels Obtained from By-Products from the Leather Industry on Tomato and Pepper Seeds

The Study of Some Fenugreek Extracts by Germination Bioassay

Contact Info

Product

Resources

About