Effect of various aqueous extracts of weed plants, Hyptis sauveolens (L.), Ricinus communis (L.), Alternanthera sessilis (L.), Ipomoea carnea (Jacq), Malachra capitata (L.) and Cymbopogon citrutus (Stapf), on seed germination, of Triticum aestivum L. var k9 were studied. Extracts of1%, 2%, 3% & 5% concentrations of weed extracts were prepared. the seeds of Triticum aestivum L. var k9 were germinated in petridishes. Final germination percentage, weight of germinated seeds and their corresponding radicle and coleoptile length was recorded at the end of 7 days along with total chlorophyll and total proteins. Seedling vigor index was calculated (SVI) using the formula percent germination× by average radical length. A control was maintained by watering the seeds with water. Statistical analysis was done to compare the mean values using T Test. There was a significant reduction in all the parameters at high concentrations of the weed extracts in all the plant species under the study. The tolerance level of allelopathic activities of various weed extractsin terms of seed vigor index represented as Cymbopogon strictus>Ipomoea carnea>Hyptis saveolens >Malachracapitata> Ricinus communis> Alternanthera sessilis. All the weed extracts studied had a marked effect on all the parameters studied, suggesting sever allelopathic effects on seed germination of Wheat
Ipomoea carnea and Alternanthera sessilis are two common weeds in India which have shown to possess several medicinal properties. The present study pertains to assess the antioxidant and cytotoxicity activity of the leaf extracts of these plants. The extraction of leaf content of the plants was carried out by soxhlet method using methanol. The in vitro cytotoxicity assay was performed in vitro on vero cell line by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay method. In vitro antioxidant activity was carried out by DPPH radical scavenging method. The cytotoxicity activity for I. Carnea i.e. IC50 (50% growth inhibition) value was found to be 1mg/ml and the IC50 of A.sessilis was found to be 6.5mg/ml. The antioxidant activity of I. Carnea i.e. IC50 value was found to be 1200ug/ml whereas that of A. sessilis was found to be 400ug/ml. The cytotoxic activity was higher for Ipomoea extracts as compared to Alternanthera extracts. However, the DPPH free radical scavenging activity was higher for Alternanthera sessilis extracts as compared to Ipomoea carnea extracts. Both showed high in vitro activity, which indicates the therapeutic potential of these plants.
Weeds have been neglected and their use for medicinal purpose has not been considered on a large scale. Our current research was based on the phytochemical Screening of Ipomoea carnea and Alternanthera sessilis and to quantitatively evaluate their total phenolic and flavonoid content. Quantitative analysis of Phenols and Flavonoids was done by the Folin Ciocalteau and Aluminium chloride method respectively. Both weeds showed positive response for presence of secondary metabolites like flavonoids, phenols, tannins, terpenoids, proteins, carbohydrates, etc. which indicates that they can be used as herbal components. The total Phenol value of Ipomoea carnea and Alternanthera sessilis was 0.0526 and 0.0657 mg Gallic acid equivalent/g respectively. The flavonoid content value of Ipomoea carnea and Alternanthera sessilis was 0.09 and 0.2 mg quercetin equivalent (QE) /g respectively. Both the weeds showed presence of several phytochemicals and high Phenol and Flavonoid values. However, Alternanthera showed a higher concentration of Phenols and Flavonoids as compared to Ipomoea. Since both the selected weeds grow in many areas throughout the world, their medicinal properties can be exploited and used for several applications. With the continuous use of antibiotics, microorganisms have become resistant. There is a need to develop alternative antimicrobial drugs using weeds, which otherwise have not been exploited till now by humans.
Industrial development and scientific advancement has contaminated the environment, as a result one of the major pollutants in the environment are heavy metals and their introduction in air, water and agricultural soil. In recent years, chromium has become a major environmental pollutant as it widely used in making alloys, electroplating of stainless steel, production of pigments. Many studies have been carried out on heavy metals to understand their detrimental effects in the ecosystem. In the present study, Chromium was selected to find out its harmful effects on seed germination and seedling growth of Vigna radiata L, Trigonella foenum-graceum L, Oryza sativa L, Sorghum vulgare L and Pennisetum glaucum L. Seeds of the selected plants were grown in petri dishes and treated with varying concentrations of Chromium solution. Each treatment was replicated in a randomised design and observed for 7 days. The developing seedlings were studied for their total rate of germination, seed vigour index, length of radicle, length of plumule and fresh weight compared to a set of seeds germinated using distilled water as control. It was observed that the harmful effects of chromium on all the parameters were directly proportional to the concentration of solution employed, with the inhibition of growth being pronounced from 50 ppm onwards. Based on the response of the plants the toxic effect of chromium was seen in the following order, Trigonella foenum-graceum L>Oryza sativa L>Pennisetum glaucum L>Sorghum vulgare L>Vigna radiata L.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.