scholarly journals Phytochemical Profile and Evaluation of the Allopathic Effect of Three Species of the Genus Cyperus (Cyperaceae)

2020 ◽  
Vol 8 (3) ◽  
pp. 569
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):  
High Performance ◽  
Germination Rate ◽  
Cyperus Rotundus ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Phytochemical Screening ◽  
Allelopathic Potential ◽  
Lactuca Sativa L ◽  
Phytochemical Profile ◽  
Germination Bioassays

The genus Cyperus is widely distributed worldwide and occurs in various regions of Brazil. Research has reported the allelopathic potential of species belonging to this genus. From this perspective, the present study analyzes the phytochemical profile and allelopathic effect of seven concentrations of the aqueous extracts of Cyperus distans L., Cyperus laxus Lam., and Cyperus rotundus L. The allelopathic potential was evaluated in triplicate from germination bioassays on seeds of two species, Lactuca sativa L. and Emilia fosbergii Nicolson. In addition, phytochemical analyses were performed to analyze possible allelochemicals present in aqueous extracts of three species by phytochemical screening and high-performance liquid chromatography (HPLC). The evaluated variables were: germination (G) and germination speed index (GSI). The data obtained were submitted to the F test, and regression analysis was performed to compare means. The results showed higher susceptibility of E. fosbergii to aqueous extracts of C. distans, C. laxus, and C. rotundus at all concentrations analyzed (0.94, 1.87, 3.75, 7.5, 15, and 30%). In turn, the germination rate of L. sativa seeds decreased only at the highest concentrations (between 15 and 30%) of the same extracts. This allelopathic potential may be directly associated with the biosynthetization of phenolic compounds by Cyperus spp., analyzed in this study by phytochemical prospecting and HPLC.

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.

Efeito Alelopático de Extratos Aquosos de Persea americana Mill. Sobre a Germinação e Desenvolvimento Inicial de Lactuca sativa L.

2018 ◽  
Vol 22 (3) ◽  
pp. 148
Author(s):  
Uéliton Alves De Oliveira ◽  
Alex Souza Rodrigues ◽  
Elisa Dos Santos Cardoso ◽  
Ana Aparecida Bandini Rossi
Keyword(s):  
Lactuca Sativa ◽  
Germination Percentage ◽  
Persea Americana ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Water Control ◽  
Initial Development ◽  
Allelopathic Potential ◽  
Lactuca Sativa L ◽  
Randomized Design

O abacateiro é uma planta frutífera, de porte arbóreo, cultivada em diversas regiões do Brasil, sendo utilizado tanto como alimento quanto fitoterápico. Estudos recentes indicam que compostos químicos, considerados fitoterápicos, podem afetar a germinação de sementes e o desenvolvimento de plântulas. Neste contexto, objetivou-se com este estudo avaliar o efeito alelopático de extratos aquosos das folhas de Persea americana Mill (abacateiro) sobre a germinação e desenvolvimento inicial de alface (Lactuca sativa L.). O experimento foi realizado em câmara de germinação, utilizando extratos aquosos obtidos por meio de decocção e infusão, nas concentrações 4,0, 12,0 e 20,0 mg mL-1, e água destilada (controle), em delineamento inteiramente casualizado (DIC), com 4 repetições de 50 sementes cada. Para avaliar o potencial alelopático foram realizados os testes de Porcentagem de Germinação (PG), Primeira Contagem (PC), Índice de Velocidade de Germinação (IVG) e Tempo Médio de Germinação (TMG) das sementes, além do Comprimento da Parte Aérea (CPA) e Comprimento do Sistema Radicular (CSR) das plântulas da alface. Os dados obtidos foram submetidos à análise de variância pelo teste F e as médias comparadas pelo teste de Tukey a 5% de probabilidade. Os extratos interferiram, significativamente, no CPA e apresentaram interação significativa para as variáveis PC, PG e CPA, sendo que o decocto, quando comparado ao infuso, ambos na concentração 4 mg mL-1 estimulou o crescimento, diferindo estatisticamente do infuso e do controle negativo. Os resultados indicam que ambos os extratos podem ser utilizados como insumo biológico, sendo o infuso como bioherbicida e o decocto como biofertilizante. Palavras-chave: Abacateiro. Alelopatia. Metabólitos Secundários. AbstractAvocado is a fruitful, large-sized plant, grown in several regions of Brazil, used both as food and phytotherapy. Recent studies indicate that chemical compounds considered phytotherapic can affect seed germination and seedling development. In this context, the objective of this study was to evaluate the allelopathic effect of aqueous extracts of leaves of Persea americana Mill (avocado) on germination and initial development of lettuce (Lactuca sativa L.). The experiment was carried out in a germination chamber, using aqueous extracts obtained by means of decoction and infusion, at concentrations 4.0, 12.0 and 20.0 mg mL-1, and distilled water (control), in a completely randomized design (DIC), with 4 replicates of 50 seeds each. In order to evaluate the allelopathic potential, the Germination Percentage (PG), First Count (PC), Germination Speed Index (IVG) and Mean Germination Time (TMG) tests were performed in addition to the Aerial Part Length (CPA) and Root Length (CSR) of lettuce seedlings. The data were subjected to analysis of variance by the F test and the averages were compared by the Tukey test at 5% probability. The extracts interfered significantly in the CPA and presented significant interaction for the variables PC, PG and CPA, and the decoction, when compared to the infusion, in the concentration 4 mg mL-1, stimulated the growth, differing statistically from the infusion and control negative. The results indicate that both extracts can be used as biological inputs, being the infusion as bioherbicide and decoction as biofertilizer. Keywords: Avocado. Allelopathy. Secondary metabolites.

scholarly journals ALLELOPATHIC EFFECT OF A WEED SPECIES, CYPERUS ROTUNDUS L. AND CLEOME VISCOSA L. ON GROWTH AND DEVELOPMENT OF BLACK GRAM (VIGNA MUNGO (L.) HEPPER.)

2015 ◽  
Vol 2 (2) ◽  
pp. 123-128
Author(s):  
Prabhakaran J ◽  
Kavitha D ◽  
Arumugam K
Keyword(s):  
Seedling Growth ◽  
Vigna Mungo ◽  
Cyperus Rotundus ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Black Gram ◽  
Weed Species ◽  
Weight Content ◽  
Whole Plants ◽  
Cleome Viscosa

The present study was aimed to investigate the allelopathic influence of two weed species Cyperus rotundus L. and Cleome viscosa L. against the growth of Black gram (Vigna mungo (L.) Hepper). Aqueous extracts (5%, 10%, 25%, 50%, 75% and 100% concentrations) of whole plants of C. rotundus and C. viscosa were employed to investigate their influence on the germination and seedling growth of the black gram. The aqueous whole plants extracts ( from 5% to 100% concentrations) of C. rotundus and C. viscosa exhibited an inhibitory effects on all the parameters employed in the germination percentage, root and shoot growth, fresh and dry weight, content of chlorophyll, starch, sugar and protein contents of Black gram over control. The extracts of both the weeds caused a minimum inhibition on germination and seedling growth of Black gram at 5% concentration and the intensity of inhibition increased when increased extract concentrations. The aqueous extracts of C. rotundus and C. viscosa showed an inhibitory effect on Black gram but their effect was more severe on black gram by the extract treatments of C. rotundus than that of C. viscosa.

scholarly journals EFECTO ALEPOPÁTICO DE TRES EXTRACTOS VEGETALES SOBRE EL DESARROLLO DE RAPHANUS SATIVUS (BRASSICACEAE) EN EL PERÚ

2019 ◽  
pp. 1-3
Keyword(s):  
Raphanus Sativus ◽  
Allium Sativum ◽  
Dry Weight ◽  
Persea Americana ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Ruta Graveolens ◽  
Allelopathic Potential ◽  
Raphanus Sativus L ◽  
Water Treatments

EFECTO ALEPOPÁTICO DE TRES EXTRACTOS VEGETALES SOBRE EL DESARROLLO DE RAPHANUS SATIVUS (BRASSICACEAE) EN EL PERÚ ALLELOPATHIC EFFECT OF THREE PLANTS EXTRACTS ON THE DEVELOPMENT OF RAPHANUS SATIVUS (BRASSICACEAE) IN PERÚ Hildebrando Ayala & Rafael La Rosa DOI: https://doi.org/10.33017/RevECIPeru2007.0007/ RESUMEN El uso de plantas con actividad alelopática en la actualidad resulta de gran importancia  porque nos permite el desarrollo de una agricultura rentable y no contaminante del medio ambiente. El objetivo de este trabajo fue estudiar la acción de extractos acuosos de ajo (Allium sativum L, Liliaceae), palta (Persea americana Mill, Lauraceae) y ruda (Ruta graveolens L, Rutaceae) sobre el desarrollo de la hortaliza rabanito (Raphanus sativus L, Brassicaceae). Los extractos se prepararon a partir de bulbos de A. sativum, semilla de P. americana y hojas y flores de R. graveolens a los cuales triturados se le adiciona agua hervida. Los tratamientos fueron extractos puros al (20% p/v). El diseño fue completamente aleatorizado con 4 repeticiones. Se determino peso fresco (g), peso seco (g), longitud de raíz (cm), longitud área (cm) y área foliar(cm2). Los datos se analizaron mediante ANOVA y Test de Tukey para la comparación de medias. Los resultados alcanzados muestran de que no existe efectos significativos en comparación con el control, del potencial alelopático de los extractos acuosos evaluados bajo condiciones controladas. Palabras claves: Extractos acuosos, semillas, hojas, flores, bulbos, Allium sativum, Persea americana, Ruta graveolens. ABSTRACT The use of plants with allelopathic activity nowadays is very important because it allows us to develop a profitable agriculture and non-polluting the environment. The objective of this work was to study the action of aqueous extracts of garlic (Allium sativum L, Liliaceae), avocado (Persea americana Mill, Lauraceae) and rough (Ruta graveolens L, Rutaceae) on the development of vegetable radish (Raphanus sativus L, Brassicaceae). The extracts were prepared from A. sativum bulbs, P. americana seeds and R. graveolens leaves and flowers to which he adds crushed boiled water. Treatments were the pure extracts (20% w / v). The design was completely randomized with 4 repetitions. It was found fresh weight (g), dry weight (g), root length (cm) long area (cm) and leaf area (cm2 ). The data was analyzed with Anova and Tukey test for the comparison of averages. The results show that there is no significant effects compared to the control of allelopathic potential of aqueous extracts tested under controlled conditions. Keywords: Aqueous extracts, seed, leaves, flowers, bulbs, Allium sativum, Persea americana, Ruta graveolens.

scholarly journals Comparison of allelopathic effects of some brassica species in two growth stages on germination and growth of sunflower

2011 ◽  
Vol 57 (No. 2) ◽  
pp. 52-56 ◽  
Author(s):  
E. Jafariehyazdi ◽  
F. Javidfar
Keyword(s):  
Germination Rate ◽  
Growth Stages ◽  
Distilled Water ◽  
Aqueous Extracts ◽  
Hypocotyl Length ◽  
Allelopathic Potential ◽  
Brassica Spp ◽  
Full Flowering ◽  
Significant Difference ◽  
Two Stages

Members of Brassicaceae have been frequently cited as allelopathic crop. The toxic effect of Brassica spp. may be caused by hydrolysis products of glucosinolates that occur in substantial amounts in the vegetative parts of Brassica spp. This study investigated the allelopathic potential of Brassica napus, B. rapa and B. juncea on the sunflower seed germination and seedling growth. Aqueous extracts of three species from two stages (full flowering and straw) of sampling were separately made with 0 (distilled water), 10, 20, 30 and 40% concentrations. This experiment was conducted in 2 × 3 × 5 factorial arrangement based on completely randomized design with five replications. There was a highly significant difference among different concentrations of extracts and also between two stages of extraction. All aqueous extracts significantly affected sunflower germination, germination rate, seedling root and hypocotyl length, fresh and dry matter weight when compared with distilled water control. The greatest concentration showed a stronger inhibitory effect. Root length was more sensitive to extracts than hypocotyl length.

scholarly journals Allelopathy of extracts of Cyperus rotundus and Oxalis latifolia on snapdragon seeds germination

2018 ◽  
Vol 24 (4) ◽  
pp. 327-333 ◽  
Author(s):  
Rogério Gomes Pêgo ◽  
Cíntia Maria Teixeira Fialho
Keyword(s):  
Seed Germination ◽  
Ornamental Plant ◽  
Cyperus Rotundus ◽  
Distilled Water ◽  
Aqueous Extracts ◽  
Allelopathic Potential ◽  
Flower Production ◽  
Germination Vigor ◽  
Whole Plants ◽  
Seeds Germination

Snapdragon (Anthirrhinum majus L.) is an ornamental plant propagated by seeds and usually cultivated in beds. In production fields occur many weeds, such as Cyperus rotundus and Oxalis latifolia, which can decrease flower production by competition or releasing allelopathic components. However, there is few knowledge about the effect of these allelopathic components on snapdragon seed germination. Therefore, this study aimed to determine the allelopathic potential of aqueous extracts of C. rotundus and O. latifolia on the germination of snapdragon. For this, 10 g of material vegetal from whole plants of C. rotundus or O. latifolia were ground in 100 mL of water (10% w v-1). The dilutions of aqueous extracts in 75%, 50%, 25% and 0 were prepared using distilled water. The seeds were kept in paper moistened with extracts, in box gerbox-type, and conditioned in a germination chamber for 11 days. After 11 days the percentage of germination, vigor, germination speed index (GSI), percentage of abnormal seedlings and dead seeds, root length and shoot seedlings were evaluated. Extracts of C. rotundus and O. latifolia reduced the percentage of seed germination by up to 17.6% and 43.7%, respectively. The vigor was reduced from 55.0% to 28.5% and IVG reduced from 27 to 12 in extracts of O. latifolia. The maximum of 49.5% and 35.5% of dead seeds was obtained in extracts of O. latifolia and C. rotundusrespectively. The highest concentrations of extracts of both species altered the morphology of snapdragons seedlings reducing the length of radicle and shoot.

scholarly journals Investigation of the Allelopathic Effect of Matricaria chamomilla L. Parts’ Aqueous Extracts on Germination and Seedling Growth of Two Moroccan Varieties of Durum Wheat

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Amine Elbouzidi ◽  
Noureddine Bencheikh ◽  
Sara Seddoqi ◽  
Mohamed Bouhrim ◽  
Youssef Bouramdane ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Plant Species ◽  
Seedling Growth ◽  
Dry Weight ◽  
Control Group ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Matricaria Chamomilla ◽  
Coleoptile Length ◽  
Allelopathic Potential

The phenomenon of allelopathy has been known for more than 2000 years. This phenomenon consists of the chemical interference of plant species (or other organisms), by enhancing, or inhibiting, the germination, seedling growth, or development of other plant species (or other organisms). This paper aimed to investigate the allelopathic potential of the aqueous extract of different parts of Matricaria chamomilla L. on germination parameters (radicle, coleoptile length, and dry weight) of two Moroccan varieties of durum wheat. Chamomile extracts from leaves, roots, or flowers at concentrations of 50 and 100 g·L−1 were prepared and applied to wheat durum seeds. The control group was given distilled water. In both studied varieties of durum wheat, only flowers’ aqueous extracts showed a significant positive allelopathic effect by increasing the studied parameters, while leaves and roots from chamomile showed an inhibiting potential on germination and seedling growth in varieties riyad and kanakis.

scholarly journals THE ALLELOPATHIC EFFECT OF MAIZE AND SORGHUM ON SOME PHYSIOLOGICAL TERISTICS OF WHEAT AND BROAD BEAN USING HYDROPONICS

2019 ◽  
Vol 25 (103) ◽  
pp. 90-118
Author(s):  
Hanaa H. Mohamed ◽  
Raghad M. Mirry
Keyword(s):  
Chlorophyll A ◽  
Chromatographic Analysis ◽  
Broad Bean ◽  
Control Treatment ◽  
Sand Culture ◽  
Soluble Carbohydrate ◽  
Allelopathic Effect ◽  
Aqueous Extracts ◽  
Chlorophyll B ◽  
Allelopathic Potential

Two experiments were conducted to test the allelopathic potential of aqueous extracts concentrations of maize (Zea mays L.) and sorghum (Sorghum bicolor L.) on some physiological characteristics of wheat (Triticum aestivum L.) and broad bean (Vicia faba L.) plants in two cultures. The effective allelochemicals available in extracts of maize and sorghum have been isolated and identified. The experiments included two factors, the Main plots were the growing culture (Sand culture and Soil culture) and the Sub-plots were five concentrations of (0,25,50,75 and 100%) the aqueous extracts of the whole plants (root and shoot for maize (in first experiment) and sorghum (in the second one), Results indicated that: Most of the studied characteristics in wheat and broad bean decreased in sand culture when treated with the aqueous extracts of maize and sorghum. Increasing the aqueous extracts of maize to 100% decreased the plant content of  soluble carbohydrate, chlorophyll a, chlorophyll b, protein to 0.29 ,0.39, 0.39 and 0.28 % in wheat, and to 0.28 , 0.46 , 0.53 and 0.46 % in broad bean. While Increasing the aqueous extracts of sorghum to 100% decreased the plant content of  soluble carbohydrate, chlorophyll a, chlorophyll b, protein to 0.34 and 0.56 and 0.64 and 0.39 % in wheat, and to 0.41 and 0.47 and 0.44 and 0.20 % in broad bean, respectively  compared to control treatment (0%). Chromatographic analysis revealed the presence of 8 compounds in aqueous extracts of maize. The isolated compounds are phenolic in nature and known to have potential phytotoxicity as syringic, gallic, caffeic, vanillic, ferulic, coumaric, catechol and hydroxybenzoic. While Chromatographic analysis revealed the existence of 10 compounds in aqueous extracts of sorghum, 8 of them similar to what found in maize in addition to  quinon, benzaquinon

scholarly journals Allelopathic Potential of Sorghum bicolor at Different Phenological Stages

2019 ◽  
Vol 37 ◽  
Author(s):  
V. ZUCARELI ◽  
E.M.P. COELHO ◽  
W.V. FERNANDES ◽  
E.M. PERES ◽  
J. STRACIERI
Keyword(s):  
Sorghum Bicolor ◽  
Aqueous Extract ◽  
Dry Matter ◽  
Germination Rate ◽  
Inhibitory Effect ◽  
Allelopathic Effect ◽  
Initial Growth ◽  
Bioindicator Species ◽  
Phenological Stages ◽  
Allelopathic Potential

ABSTRACT: This study aimed to assess the allelopathic potential of the aqueous extract of the shoot of Sorghum bicolor at different phenological stages on seed germination and initial growth of kale (Brassica oleracea var. acephala) seedlings, which is considered a bioindicator species. The experiment was carried out at five development stages of S. bicolor (40, 50, 60, 70, and 80 days after emergence), which was used as aqueous extract at six concentrations (0, 20, 40, 60, 80, and 100%) applied in four replications per treatment in 10 or 50 kale seeds per plot. The percentage of germination, germination rate index, root growth, shoot length, and dry matter of kale seedlings were analyzed in the presence of this extract on different days of collection and concentrations. The aqueous extract of S. bicolor presented an allelopathic effect on germination and initial growth of kale seeds, with a higher inhibitory effect when more concentrated extracts from pre-flowering plants were used, which corresponds to 60 days after emergence. Thus, this stage should be recommended in the use of S. bicolor straw to help in controlling weeds.

scholarly journals Allelopathic Behaviour of Cyperus Rotundus L. On Both CHORCHORUS OLITORIUS (BROAD LEAVED WEED) AND ECHINOCHLOA CRUS-GALLI (GRASSY WEED) ASSOCIATED WITH SOYBEAN

2010 ◽  
Vol 50 (3) ◽  
pp. 274-279 ◽  
Author(s):  
Kowthar El-Rokiek ◽  
Samia El-Din ◽  
Faida Sharara
Keyword(s):  
High Performance ◽  
Dry Matter ◽  
Soil Surface ◽  
Dry Weight ◽  
Cyperus Rotundus ◽  
Growth And Yield ◽  
Allelopathic Potential ◽  
Barnyard Grass ◽  
Purple Nutsedge ◽  
Chromatography Analysis

Allelopathic Behaviour ofCyperus RotundusL. On BothCHORCHORUS OLITORIUS(BROAD LEAVED WEED) ANDECHINOCHLOA CRUS-GALLI(GRASSY WEED) ASSOCIATED WITH SOYBEANPurple nutsedge (Cyperus rotundus) foliage and tubers were tested for allelopathic potential against the following weeds; juteChorchorus olitorius(broad leaved weed), and barnyard grassEchinochloa crus-galli(grassy weed) associated with soybean. In the greenhouse, during 2008 and 2009, foliage and tubers ofC. rotunduswere mixed with soil surface at 20, 40, 60 and 80 g/kg.C. rotundusnegatively affected those of jute and barnyard grass particularly at 80 g. Jute was more susceptible to allelopathy byC. rotundusthan barnyard grass. Inhibition in weed dry matter was higher with tuber than foliage residues. Tuber residues reduced the dry weight of jute and barnyard grass by 85.96% of the control and by 58.28% with 80 g, respectively. On the other hand, soybean growth and yield showed a high significant increase compared with unweeded pots. A high-performance liquid chromatography analysis showed thatC. rotundusfoliage contained the following phenolic acids: caffeic, ferulic, coumaric, benzoic, vanelic, chlorogenic and cinnamic. Tubers contained hydroxybenzoic, caffeic, ferulic, vanelic and chlorogenic.

Sign in / Sign up

Export Citation Format

Share Document