Allelopathic Effect of Aqueous Extract of Ganghwa Mugwort (Artemisia spp.) Vegetables and HPLC Aanalysis of Allelochemicals

2013 ◽  
Vol 21 (4) ◽  
pp. 737-752
Author(s):  
Joo-Hwa Lee ◽  
Ji-Hui Byeon ◽  
Moung-Su Kim ◽  
Chun-Geon Park ◽  
Chung-Berm Park ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Allelopathic Effect

Establishment and productivity of cicer milkvetch (Astragalus cicer L.) in alfalfa (Medicago sativa L.) or alfalfa- hybrid bromegrass mixtures

2021 ◽  
Author(s):  
Allan Foster ◽  
Bill Biligetu
Keyword(s):  
Medicago Sativa ◽  
Aqueous Extract ◽  
Nutritive Value ◽  
Forage Yield ◽  
Allelopathic Effect ◽  
Limited Information ◽  
Seeding Rate ◽  
Bromus Riparius ◽  
Medicago Sativa L ◽  
Astragalus Cicer

Cicer milkvetch (Astragalus cicer L.) (CMV) is a non-bloating, perennial legume that has shown persistence under grazing. Limited information is available on its seedling establishment and subsequent forage yield and nutritive value in alfalfa (Medicago sativa L.) mixtures. Field plots were seeded in May 2013 at Melfort, SK, Canada to evaluate ‘Oxley II’ cicer milkvetch performance in ‘AC Grazeland’ alfalfa or alfalfa and ‘AC Success’ hybrid bromegrass (Bromus riparius × B. inermis) mixtures from 2014 to 2017. Two controlled environment tests were also conducted by treating seeds of CMV using alfalfa root aqueous extract. Seed germination and seedling height of CMV were significantly reduced in aqueous extract. In field, establishment of CMV in a mixture containing alfalfa was reduced, and CMV dry matter proportion in the mixture increased only 3.5% over three years. Increasing CMV seeding rate did not increase its DM percent in the mixtures, indicating a high allelopathic effect of alfalfa. Forage DM yield of all mixtures was linearly correlated to the proportion of alfalfa, and adding hybrid brome did not increase the DM yield. Forage DM yield was higher for the three-cut than the two-cut treatments for CMV-alfalfa mixtures, but there was no difference between the cutting frequency for CMV-alfalfa- hybrid brome mixtures. Fiber concentrations decreased linearly with increased CMV seeding rate in the mixtures. This study showed CMV establishment in alfalfa mixtures was reduced in a same row seeding, and the allelopathic effect was not reduced by lower alfalfa seeding rates or adding a grass.

Allelopathic potential of Artemisia herba-alba and Anthemis arvensis to control Weeds in Wheat (Triticum aestivum) and Barley (Hordeum vulgare)

2016 ◽  
Vol 6 (3) ◽  
pp. 95-100
Author(s):  
Nadi Awwad Al Harbi
Keyword(s):  
Triticum Aestivum ◽  
Hordeum Vulgare ◽  
Aqueous Extract ◽  
Weed Management ◽  
Allelopathic Effect ◽  
Weed Species ◽  
Crop Species ◽  
Allelopathic Potential ◽  
Anthemis Arvensis ◽  
Germination And Growth

The aim of the present study was to investigate the potentials for utilization of Artemisia herba-alba and Anthemis arvensis shoot aqueous extract at different concentrations (1%, 3%, and 5%) to suppress the germination and growth of Panicum turgidum and Portulaca oleracea (weeds of crop fields) in Petri dish experiment. Results indicated that the degree of inhibition on seed germination and growth of the recipient species was largely dependent on the concentration of A. herba-alba and A.arvensis shoot aqueous extract. The aqueous extract of A.herba-alba showed the highest allelopathic effect on the germination of the seeds of P. turgidum, (10%,10% and 0%) while the effect of A. arvensis shoot aqueous extract was greater on the germination of the seeds P. oleracea (40%,0% and 0%). Percentage germination of the two selected crop species Triticum aestivum and Hordeum vulgare also de-creased as the A.herba-alba and A.arvensis shoot aqueous extract concentra-tion increased from 1% to 5% (90%,80% and 70%),(40%,40% and 20%). But the inhibition percentage was largely less than that of weed species. The results also showed that H.vulgare was more sensitive than T. aestivum and responds more strongly to the increase of concentration of A. herba-alba shoot aqueous extract . Results also showed that the radicle length of almost all tested species was more sensitive to allelochemicals from A.herba-alba and A.arvensis shoot aqueous extract than plumule length. Therefore, A. herba-alba and A. arvensis shoot aqueous extract may offer promises for their usefulness as a tool for weed management.

scholarly journals Phytochemical Profile and Evaluation of the Allelopathic Effect of the Aqueous Extract of Fimbristylis miliacea (L.) Vahl (Cyperaceae)

2020 ◽  
Vol 8 (3) ◽  
pp. 310
Author(s):  
Ana Claudia Martins Da Silva ◽  
José Jailson Lima Bezerra ◽  
Ana Paula Do Nascimento Prata ◽  
Renan Cantalice De Souza ◽  
Cynthiane Lins de Albuquerque Paulino ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
High Performance ◽  
Chemical Constituents ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Allelopathic Potential ◽  
Phytotoxic Activity ◽  
Lactuca Sativa L ◽  
Phytochemical Profile ◽  
Germination Bioassays

The allelopathic potential of some plant species has been scientifically proven over the years. The use of such natural compounds with phytotoxic activity is an alternative to synthetic herbicides. Thus, this research aims to analyze the phytochemical profile and the allelopathic effect of aqueous extracts of Fimbristylis miliacea (L.) Vahl. The allelopathic potential was evaluated by germination bioassays using seeds from two receptor species (Lactuca sativa L. and Emilia fosbergii Nicolson) and seven concentrations of aqueous extracts of F. miliacea aerial and underground parts in triplicate. The variables evaluated were germination (G) and germination speed index (GSI). The data obtained were submitted to F test and the averages to regression analysis. In addition, phytochemical analyses were performed to analyze possible allelochemicals present in aqueous extracts of F. miliacea through phytochemical screening and by high performance liquid chromatography (HPLC). The aqueous extracts of aerial and underground parts of F. miliacea inhibit the germination of E. fosbergii seeds at all concentrations analyzed (0.94, 1.87, 3.75, 7.5, 15 and 30%). However, the same extracts do not show any effects when evaluated in L. sativa seeds. The aqueous extract of F. miliacea shows important chemical constituents (gallic acid, chlorogenic acid, rutin, luteolin, apigenin, acacetin, and alkaloids) that can be directly related to the allelopathic effects observed in E. fosbergii seeds.

scholarly journals Allelopathic Potential of Papaver Somniferum L. on Seed Germination Against Three Different Varities of Zea Mays

2021 ◽  
Author(s):  
Muntaha Tul Sidra ◽  
SAYEDA SARAH MUBARAK ◽  
FATIMA KHAN SHERWANI ◽  
NAZMA AZEEM
Keyword(s):  
Zea Mays ◽  
Aqueous Extract ◽  
Water Extract ◽  
Inhibitory Effect ◽  
Papaver Somniferum ◽  
Hot Water ◽  
Allelopathic Effect ◽  
Inhibitory Effects ◽  
Allelopathic Potential ◽  
Hot Water Extract

Abstract Aims To evaluate the allelopathic effect of Papaver somniferum against the 3 varieties of Zea mays seeds cv. Azam, Pahari and Iqbal. Methods Aqueous extracts were made by soaking the powder of dried leaves of Papaver somniferum. For the aqueous extract treatment, the extract was soaked in distilled water for 24 and 48 hours separately. For mulching treatment, the seeds were sowed in soil and sprinkled powder of leaves. For litter, the petri dishes were grounded with randomly cut pieces of filter paper wetted with extract. For hot water treatment the water was boiled for 5 minutes. The powder was then mixed in boil water. Results Azam got effected in 24h extract in aqueous extract treatment while Pahari in 48h treatment. In mulching all the three varieties got inhibited by extract. Azam showed resistance toward the inhibitory effect of extract in litter experiments. Iqbal was affected in hot water extract. Conclusion It is concluded that the extracts obtained from Papaver somniferum showed inhibitory effects on all the three varieties except few exceptions of maize. The plumule and radical growth got affected the most.

scholarly journals Allelopathic effect of aqueous extract of Cyperus rotundus on Lactuca sativa and Solanum lycopersicum

Científica ◽  
2020 ◽  
Vol 48 (1) ◽  
pp. 36
Author(s):  
Eduardo Fernando Bispo ◽  
Natália Barreto Meneses ◽  
Geslanny Oliveira Sousa ◽  
Francisco de Assys Romero da Mota Sousa ◽  
Eleonora Barbosa Santiago Da Costa
Keyword(s):  
Solanum Lycopersicum ◽  
Aqueous Extract ◽  
Lactuca Sativa ◽  
Cyperus Rotundus ◽  
Allelopathic Effect

Allelopathic Potential and Chemical Components of Aqueous Extract from Soil-Like Substrate

2012 ◽  
Vol 455-456 ◽  
pp. 490-495
Author(s):  
Le Yuan Li ◽  
Bei Zhen Xie ◽  
Wen Ting Fu ◽  
Wen Ting He ◽  
Hong Liu
Keyword(s):  
Aqueous Extract ◽  
Root Length ◽  
Life Support ◽  
Significant Inhibition ◽  
Seed Vigor ◽  
Chemical Components ◽  
Allelopathic Effect ◽  
Chemical Compositions ◽  
Fresh Weight ◽  
Allelopathic Potential

. Rice and wheat are the traditional food for Chinese people, as well as the main crop candidates for space bioregenerative life support systems. Recycling of inedible parts of rice and wheat is an important issue concerning the system. In order to determine whether the mixed-substrate of rice and wheat’s inedible parts is suitable for plant cultivation, soil-like substrate made from rice and wheat was tested in an aqueous extract germination experiment. The effects of different concentrations of aqueous extract on seed vigor, seedling growth and development situations and the physiological and biochemical characteristics of wheat, lettuce and pumpkin were studied, and the presence and degrees of allelopathic effects were analyzed. The test results show that this type of soil-like substrate can exert different degrees of allelopathic effect on wheat and lettuce; this allelopathic effect is related to the concentration of soil-like substrate aqueous extract. With the increase of extract concentration, the seed germination, root length and shoot fresh weight of wheat decreased; and every concentration of aqueous extract showed significant inhibition on the root length and root fresh weight of lettuce. However, this type of soil-like substrate showed few effect on the growth of pumpkin seedlings. Content changes of chlorophyll and endogenous hormones in wheat and lettuce seedlings, and the chemical compositions of soil-like substrate were measured. Besides, the mechanism of allelopathic effect was analyzed.

scholarly journals Assessing the Potential of the Water Soluble Allelopaths of Marsilea minuta in Rice and Wheat

2015 ◽  
Vol 33 (2) ◽  
pp. 231-239 ◽  
Author(s):  
A. Tanveer ◽  
M.E. Safdar ◽  
M. Suleman ◽  
M. Tahir ◽  
S.I. Zamir ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Petri Dish ◽  
Water Soluble ◽  
Plant Residue ◽  
Allelopathic Effect ◽  
Infested Soil ◽  
Seedling Vigor ◽  
Coumaric Acid ◽  
Whole Plant ◽  
Germination Bioassays

To investigate the allelopathic effect of Marsilea minuta against the germination and seedling growths of rice (Oryza sativa) and wheat (Triticum aestivum), germination bioassays were conducted in both Petri dish and soil cultures in laboratory conditions. Rice and wheat seeds were allowed to germinate in a 1, 2, 3, 4, and 5% (w/v) aqueous extract of whole plant and 2, 4, 6, and 8% (w/w) plant residue-incorporated soils of M. minuta. In Petri dish experiments, 5% (w/v) an aqueous extract of M. mimuta showed significantly lower germination percentages (18.8% and 56.3%), root lengths (0.9 and 4.5 cm), shoot lengths (3.3 and 12.4 cm), seedling lengths (4.1 and 25.0 cm), root dry weights (1.4 and 5.6 g), shoot dry weights (1.1 and 9.0 g), seedling biomasses (2.5 and 14.6 g), and seedling vigor indices (77.4 and 957.3) in rice and wheat, respectively. In pot experiments, the M. minuta residue infested soil, with 8% concentration, produced significantly lower germination percentages (25.3 and 37.5%), root lengths (2.7 and 6.1 cm), shoot lengths (6.2 and 16.5 cm), seedling lengths (8.9 and 22.6 cm), root dry weights (2.4 and 5.5 g), shoot dry weights (4.0 and 2.8 g), seedling biomasses (6.4 and 8.3 g), and seedling vigor indices (224.1 and 855.3) in rice and wheat, respectively. The highest phytotoxic action of 5% aqueous whole plant extract of M. minuta against test crops seem to be due to the presence of two potent phenolic compounds, namely p-coumaric acid (2.91 mg L-1) and m-coumaric acid (1.59 mg L-1) as determined by HPLC analysis.

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