scholarly journals The Effects of Fig Tree (Ficus carica L.) Leaf Aqueous Extract on Seed Germination and Seedling Growth of Three Medicinal Plants

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2564
Author(s):  
Chunying Li ◽  
Xue Yang ◽  
Yao Tian ◽  
Meiting Yu ◽  
Sen Shi ◽  
...  
Keyword(s):  
Seed Germination ◽  
Medicinal Plants ◽  
Aqueous Extract ◽  
Germination Rate ◽  
Agroforestry Systems ◽  
Ficus Carica ◽  
Photosynthetic Parameters ◽  
Promoting Effect ◽  
Leaf Aqueous Extract ◽  
Fig Tree

Fig tree cultivation land resources are not fully utilized and introducing them into sustainable medicinal agroforestry systems can effectively achieve resource protection and reuse. Laboratory and pot experiments were applied to study the allelopathic effects of fig tree (Ficus carica L.) leaf aqueous extract at five mass concentrations of 8.3, 10.0, 12.5, 16.7, and 25.0 g/L on the morphological and physiological indexes of mint (Mentha haplocalyx Briq.), dandelion (Taraxacum mongolicum Hand.-Mazz.), and woad (Isatis indigotica Fort.). The results showed that mint had the best seed germination rate. The leaf aqueous extract at lower concentrations had a strong promoting effect on the biomass and photosynthetic parameters of mint, dandelion, and woad. With the increase in leaf aqueous extract concentration, the superoxide dismutase, peroxidase, and catalase activity of mint, dandelion, and woad increased initially and then decreased, but the malondialdehyde content increased. The synthetic allelopathic indexes of the three medicinal plants were in the following order: mint >woad >dandelion. Both the low and medium concentration extracts (8.3 g/L-12.5 g/L) showed an obvious promoting effect, while high concentrations exhibited distinct inhibiting effects. In conclusion, mint is the most suitable medicinal plant to be interplanted with fig trees for introduction into medicinal agroforestry systems.

scholarly journals Antifeedant Activity of Leaf Aqueous Extracts of Selected Medicinal Plants on VI Instar Larva of Helicoverpa Armigera (Hubner)

2020 ◽  
Vol 8 (05) ◽  
pp. 62-66
Author(s):  
G. Ravi ◽  
Dr.G. Sundararajan
Keyword(s):  
Mortality Rate ◽  
Medicinal Plants ◽  
Aqueous Extract ◽  
Helicoverpa Armigera ◽  
Botanical Insecticides ◽  
Tribulus Terrestris ◽  
Aqueous Extracts ◽  
Antifeedant Activity ◽  
Leaf Aqueous Extract ◽  
Helicoverpa Armígera

Phytochemicals, especially botanical insecticides are currently of interest because of their successful application in plant protection as biocontrol agents. Biological activity of leaf aqueous extract of ten selected medicinal plants were evaluated against the fourth-instar larvae of gram pod borer Helicoverpa armigera (H¨ubner), (Lepidoptera: Noctuidae). Antifeedant activity of leaf aqueous extracts of Abutilon indicum L., Achyranthus aspera L., Aerva lanata L., Albiziz amara (Roxb), Andrographis paniculata Ness., Cardiospermum halicacabum L., Cassia tora L., Catharanthus roseus L (G) Don., Datura metal L. and Tribulus terrestris L. were evaluated in this study. Preliminary screening after 24 h of exposure with leaf aqueous extracts of the selected plants at a concentration of 1,000 ppm exhibited significant larval mortality rate. The percentage mortality rate ranged considerably from 10.8 to 72.8. The mortality rate was observed in the decreasing order of A. paniculata > C. roseus > D. metal > A. amara > C. halicacabum > A. indicum > C. tora > T. terrestris > A. aspera >A. lanata against the larvae of H. armigera. The results imply that leaf aqueous extract of A. paniculata, C. roseus and D. metal can potentially be used as eco-friendly pest control agents against the larva of H. armigera.

Green Synthesis of Silver Nanoparticles Using Olden-landia corymbosa and Ocimum sanctum Leaf Aqueous Extract

2020 ◽  
Vol 13 (3) ◽  
pp. 4959-4964
Author(s):  
Prof.(Dr.) Sirshendu Chatterjee Chatterjee ◽  
Shaktijit Das ◽  
Moumita Saha ◽  
Pranabesh Ghosh ◽  
Titav Sengupta ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Green Synthesis ◽  
Aqueous Extract ◽  
Nano Particles ◽  
Bioactive Molecules ◽  
Primary Amines ◽  
Ocimum Sanctum ◽  
Leaf Aqueous Extract ◽  
Vis Spectroscopy ◽  
Ft Ir

The field of nanotechnology is the most renowned area of research in modern day science. One of the most convenient and comprehensive technique related to the synthesis of nanoparticles using plant extracts and their subsequent action. On the other hand, herbal medicines become an integral part of modern-day treatment strategy around the globe; combination of these two ways are widely accepted and beneficial due to its low cost, better societal recognition and less side effects. Phytochemical analysis revealed that leaf aqueous extract of two medicinal plants Oldenlandia corymbosa and Ocimum sanctum, harbours high concentration of antioxidants and bioactive molecules. Hence our present course of study aims at the green synthesis of silver nano-conjugates using Oldenlandia corymbosa and Ocimum sanctum leaf aqueous extracts. The synthesized nano-conjugates have undergone advanced chara-cterization techniques including UV-Vis Spectro-photometry, DLS, and FT-IR. The UV-Vis spectroscopy results showed single peak at 420 nm and 430 nm for Oldenlandia corymbosa and Ocimum sanctum nano-conjugates, respectively. The particle size for Oldenlandia corymbosa and Ocimum sanctum nano-particles are 21.04 nm and 24.36 nm, respectively as observed from the DLS data, and finally, the FT-IR data confirms the conjugation of bioactive molecules of the medicinal plants indicating that primary amines, secondary amines, alcohols, phenols, aldehydes, aliphatic amines, alkenes, functional groups of the bioactive molecules are responsible for the stability of prepared silver nano-conjugates

scholarly journals Effect of Different Priming Methods on Germination and Seedling Establishment of Two Medicinal Plants under Salt Stress Conditions

2015 ◽  
Vol 48 (3) ◽  
pp. 43-51 ◽  
Author(s):  
O. Younesi ◽  
A. Moradi
Keyword(s):  
Salt Stress ◽  
Seed Germination ◽  
Medicinal Plants ◽  
Salinity Stress ◽  
Seedling Establishment ◽  
Growth Traits ◽  
Germination Rate ◽  
Stress Conditions ◽  
Metabolic Reaction ◽  
Lemon Balm

Abstract Priming is one of the seed enhancement methods that might be resulted in increasing seed performance (germination and emergence) under stress conditions, such as salinity. Salinity is a major environmental stress which adversely affects germination and seedling establishment in a wide variety of crops. The experiment was arranged as a factorial in completely randomized design (CRD) at Seed Research Laboratory of College of Agriculture, University of Tehran, Iran. The objective of this research was to evaluate the effect of different priming methods on seed germination of two medicinal plants including lemon balm (Melissa officinalis L.) and cumin (Cuminum cyminum L.) under salinity stress. Treatments were combinations of two levels of salinity stress (0 and 10 dsm−1) and five levels of priming (control = non-priming), GA3, manitol, NaCl and distilled water) with three replications. Seeds of lemon balm and cumin were primed for 24 h at 25°C. Results revealed that different growth traits (including germination percentage, germination rate, seedling dry weight, plumule and radical length) significantly (p=0.05) decreased with applying salinity. However, priming of seeds with different materials particularly GA3 was useful for alleviating salt stress effects and improving germination and seedling establishment under salt stress. Under salinity condition, primed seeds possessed more germination and emergence than control. The result of this experiment is consistent with the hypothesis that under salinity stress, priming can prepare a suitable metabolic reaction in seeds and can improve seed germination performance and seedling establishment.

Seed Germination and Seedling Growth Characteristics of Different Larix principis-rupprechtii Families

2014 ◽  
Vol 1073-1076 ◽  
pp. 1112-1116
Author(s):  
Guo Zhong Yue ◽  
Min Hua Zhao ◽  
Guo Jun Zhang ◽  
Wan Qi Wang ◽  
Jun Ming Yang
Keyword(s):  
Seed Germination ◽  
Seed Production ◽  
Seedling Growth ◽  
Growth Traits ◽  
Germination Rate ◽  
Seed Orchard ◽  
Phenotypic Traits ◽  
Photosynthetic Parameters ◽  
Planted Forest ◽  
Basal Diameter

Phenotypic traits (thousand seed weight and plumpness, etc.), germination characteristics (germination rate and nursery germination rate, etc.), growth traits (seedling height, basal diameter, root length, etc.) and photosynthetic parameters of 8 superior families and 3 controls (seed orchard, seed production stand and planted forest) were measured and analyzed to determine the difference of seed germination and seedling growth among Larix principis-rupprechtii families. Results showed that families 7-46, 8-74 and 1-30 performed excellent in aspects of germination index, nursery germination rate, height, basal diameter and photosynthetic rate. Their membership function value was 4-5 times higher than planted forest, 35%-70% higher than the seed orchard and seed production stand.

scholarly journals Chromatography and mass spectroscopy analysis of bioactive principles from Vernonia amygdalina leaf aqueous extract

2021 ◽  
Vol 21 (103) ◽  
pp. 18501-18517
Author(s):  
Paul Chukwuemeka Adiukwu ◽  
◽  
MO Tebogo
Keyword(s):  
Medicinal Plants ◽  
Aqueous Extract ◽  
Column Chromatography ◽  
Health Management ◽  
Previous Literature ◽  
Identification System ◽  
Vernonia Amygdalina ◽  
Herbal Products ◽  
Mass Spectral ◽  
Leaf Aqueous Extract

Application of medicinal plants in managing disease conditions is a practice as old as mankind. Its use in today’s healthcare has increased astronomically when compared to any other era. National policies, which integrate herbal products in healthcare systems, and the increasing presence of herbal clinics have become the order in many countries. Despite the ease of accessibility and affordability, the use of products from medicinal plants as phyto-medicines is threatened by the inability to maximize the benefits. This is due to inadequate qualitative and quantitative data necessary for proper application and regulation. Vernonia amygdalina, a herb widely used by ethnics in diverse forms of health management, is one such medicinal plant. This study was designed to determine referenceable values for the ethno formulation of the herb which is usually prepared as the aqueous extract of the leaf. Standard techniques and procedures were employed for this study. Fractionation of the extract was carried out using facilitated column chromatography. Pure principles of fractionates were separated with gas chromatography and identified using hyphenated mass spectrometer based on their relative abundance. The obtained chromatogram and spectra of principles were elucidated by relating data to the Mass Spectral Database with Automatic Mass Spectra Deconvolution & Identification System (AMDIS). Preliminary screening of extract indicated the absence of quinine but presence of alkaloids, tannins and saponins. Aqueous extraction produced 18 % (w/w) yield. The accelerated column chromatography produced a yield in the ratio of four to six to nine for the chloroform, chloroform/methanol and methanol effluents, respectively. Data obtained from the AMDIS elucidation showed the presence of eleven principles, which includes 1, 2, 3, 4-Butanetetrol; 1, 2-Benzenediol; and Caprolactam among others. Some of the properties and bioactivities of these principles have been reported in previous literature. Findings suggest that bioactivity common with some of these principles is consistent with previous literature on the use of the herb, and demonstrates reasons for the folkloric application.

scholarly journals Effect of Aqueous and Ethanol Extract of Acacia nilotica L. Leaves on Seed Germination of Vigna radiata L.

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Nailul Rahmi Aulya
Keyword(s):  
Seed Germination ◽  
Aqueous Extract ◽  
Crude Extract ◽  
Vigna Radiata ◽  
Germination Rate ◽  
Ethanol Extract ◽  
Germination Percentage ◽  
Acacia Nilotica ◽  
Fresh Weight ◽  
Radicle Length

<p>This research aimed to tested the effect of extract on Vigna radiata L. germination. Tested the effect of crude extract of A. nilotica leaves on germination was conducted experimentally using Factorial Completely Randomized Design (FCRD). The first fact or was the type of crude extract and the second factor was levels of extract concentration. The result showed that the application of aqueous and ethanol extract enhanced all parameters of V. radiata L. germination (percentage of seed germination, rate of seed germination, radicle length, seedling fresh weight). Application of lower concentration (0,25%) of aqueous and ethanol extract increased speed of germination, radicle length, and fresh weight of seed. The application of 75% aqueous extract increased the percentage of germination to 100% than control and another treatment. However, further research is needed to confirm the effect of this plant extract on the vegetative growth of Vigna radiata L.</p><p>Keyword: Acacia nilotica, aqueous extract, ethanol extract, seed germinatio</p>

scholarly journals Effect of aqueous extracts of selected medicinal plants on germination of windgrass [Apera spica-venti (L.) P. Beauv.] and lambsquarters (Chenopodium album L.) seeds

2016 ◽  
Vol 69 (3) ◽  
Author(s):  
Agnieszka Synowiec ◽  
Adriana Nowicka-Połeć
Keyword(s):  
Seed Germination ◽  
Medicinal Plants ◽  
Aqueous Extract ◽  
Hypericum Perforatum ◽  
Chenopodium Album ◽  
Petri Dish ◽  
Inhibitory Effect ◽  
Aqueous Extracts ◽  
Herbicide Resistant ◽  
Allelopathic Compounds

The study aimed to determine the effect of aqueous extracts of medicinal plants (<em>Matricaria chamomilla</em>, <em>Hypericum perforatum</em>, <em>Achillea millefolium</em>, and <em>Urtica dioica</em>) containing allelopathic compounds on seed germination in lambsquarters (<em>Chenopodium album</em>) and herbicide-resistant windgrass (<em>Apera spica-venti</em>). A Petri-dish experiment was carried out, in which the effects of five concentrations of aqueous extracts on the germination of weeds were assessed for 10 consecutive days. It was found that the dynamics of seed germination are closely related to the type and concentration of aqueous extract of medicinal plants. The 8% <em>U. dioica</em> aqueous extract posed the strongest inhibitory effect, limiting the germination of both lambsquarters and windgrass. Additionally, weed germination was delayed by 12–72 h in the presence of extracts, compared with the control. Summing up, the aqueous extracts of medicinal plants, especially their higher concentrations, pose a desirable inhibiting effect against the germination of lambsquarters and herbicide-resistant windgrass seeds.

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