scholarly journals A, The ALLELOPATHIC EFFECT OF CINNAMOMUM VERUM ON EMERGENCE AND SEEDLING GROWTH OF RADISH (Raphanus sativus)

2021 ◽  
Vol 27 (4) ◽  
pp. 485-494
Author(s):  
Bilal Ahmad Khan ◽  
Rizwan Maqbool ◽  
Sumbal Parvez ◽  
Muhammad Ather Nadeem
Keyword(s):  
Plant Growth ◽  
Phenolic Compound ◽  
Aqueous Extract ◽  
Seedling Growth ◽  
Raphanus Sativus ◽  
Maximum Yield ◽  
Syringic Acid ◽  
Allelopathic Effect ◽  
High Concentration ◽  
Low Concentration

Crop plants release biochemicals into surrounding environment that help in obtaining maximum yield of crop by acting bioherbicide at high concentration and plant growth hormone at low concentration. Therefore, this study was planned at Department of Agronomy in Weed Science Laboratory, University of Agriculture Faisalabad during Winter 2018 to evaluate the hermetic effects of Cinnamomum verum (Dalchini) on vegetable crop Radish (Raphanus sativus) and determination and quantification Phenolic compound present in aqueous extract of bark of C. verum. The experiments were laid out under completely randomized design (CRD) having three replications. The aqueous extracts of C. verum was used on radish seeds at different concentrations (2.5%, 5%, 10%, 20%, 40% and 80%). Data regarding seed germination and seedling growth (shoot length, root length, shoot fresh weight, root dry weigh) of radish were recorded following standard procedures. Results of our study revealed that at higher concentration act as bioherbicide and produced inhibitory effects on R. sativus while at low concentration it shows hermetic effect and promoted the seedling growth. aqueous extract showed concentration. Among different Phenolic compound (Syringic acid, p-crumeic, Ferulic acid, Quercetion and Gallic acid) determine in aqueous extract of barck of C. verum Maximum Quercetion (12.3 %) and minimum Syringic acid (0.60 %) was found. Therefore, it was concluded from this study that aqueous extract of C. verum can be used as bioherbicides at higher concentration to control weed while at low concentration as plant growth regulator.

scholarly journals A, The EXPLORING THE ALLELOPATHIC AND HERMETIC EFFECT OF KHATAMI (Altheae officinalis) ON EMERGENCE AND SEEDLING GROWTH OF RADISH (Raphanus sativus)

2021 ◽  
Vol 27 (3) ◽  
pp. 321-330
Author(s):  
Bilal Ahmad Khan
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Root Length ◽  
Raphanus Sativus ◽  
Germination Percentage ◽  
Shoot Length ◽  
Fresh Weight ◽  
Germination Time ◽  
Shoot Fresh Weight ◽  
Mean Germination Time

Abstract Crop plants release biochemicals into surrounding environment that help in obtaining maximum yield of crop by acting bioherbicide at high concentration and plant growth hormone at low concentration. Therefore, this study was planned at Department of Agronomy in Weed Science Laboratory, University of Agriculture Faisalabad during Winter 2018 to evaluate the hermetic effects of Althaea officinalis L. (khatami) on vegetable crop Radish (Raphanus sativus) The experiments were laid out under completely randomized design (CRD) having three replications. The aqueous extracts of A. officinalis L. were used on radish different concentrations (2.5%, 5%, 10%, 20%, 40% and 80%). Data regarding seed germination and seedling growth (shoot length, root length, shoot fresh weight, root dry weigh) of radish were recorded using standard procedures. Results Reveals that the aqueous extract of A. officinalis at higher concentration (80%) act as bioherbicide and produced inhibitory effects on R. sativus result in Maximum time to 50% germination (4.68 days) and mean germination time (9.05 days) while minimum germination index (3.60), germination percentage (85.00%), shoot length (42.4 cm), root length (25.90 cm), shoot fresh weight (53.30 g) and root fresh weight (13.30 g). While at lower concentration (10%) it shows hermetic effect and produce maximum germination percentage (100.00%), shoot length (58.2 cm), root length (52.0 cm), shoot fresh weight (90.00g), root fresh weight (26.30 g) minimum time to complete 50% germination (3.36 days), germination index (6.00%) and mean germination time (5.73 days) growth. In A. officinalis among different phenolic compound minimum Syringic acid (0.60%) and maximum Quercetion (12.3%) compound was found. Therefore, it was concluded from this study that aqueous extract of officinalis can be used as growth promoter at lower concentration while at higher concentration for environmentally friendly control of weeds.

Plant Growth Regulation Activity of Column Chromatography Fractions from Mikania micrantha H.B.K. on Raphanus sativus

2013 ◽  
Vol 726-731 ◽  
pp. 4397-4400
Author(s):  
Yan Zhao ◽  
Min Ye ◽  
Li Ming Fan ◽  
You Gui Zha ◽  
Xiao Yu Gao
Keyword(s):  
Plant Growth ◽  
Seedling Growth ◽  
Raphanus Sativus ◽  
Growth Regulation ◽  
Chemical Constituents ◽  
Chemical Compounds ◽  
Strong Activity ◽  
Mikania Micrantha ◽  
Plant Growth Regulation ◽  
Seeds Germination

Some chemical compounds in low polar fractions ofMikania micranthaH.B.K. extracts can strongly influence seeds germination and seedling growth ofRaphanus sativus. In this study, we provide evidence that the chemical compounds in a low polar fraction chromatographed on normal phase silica gel columns from petroleum ether extract ofM. micranthahave strong activity to inhibit the seeds germination and seedling growth ofRaphanus sativus. Two main chemical constituents, α-Bisabolol and Eudesma-5,11(13)-dien-8,12-olide, in the active fraction were confirmed by GC-MS analysis. Key words:Mikania micranthaH.B.K.,Raphanus sativus, plant growth regulation activity, fraction, GC-MS

scholarly journals Soil Mediated Allelopathic Effect of Echinochloa colona on Germination and Seedling Growth of Zea mays

2018 ◽  
Vol 36 ◽  
Author(s):  
M.A. MAJEED ◽  
A. TANVEER ◽  
M. TAHIR ◽  
R. AHMAD
Keyword(s):  
Zea Mays ◽  
Seedling Growth ◽  
Sinapic Acid ◽  
Water Extract ◽  
Inhibitory Effect ◽  
Syringic Acid ◽  
Water Soluble ◽  
Control Treatment ◽  
Plant Residues ◽  
Allelopathic Effect

ABSTRACT: The soil mediated allelopathic effect of Echinochloa colona (L.) Link (jungle rice) was investigated on seed germination and seedling growth of Zea mays L. (maize). The experiment was conducted in the Agronomy farm of the University of Agriculture, Faisalabad, Pakistan. This study investigated the effect of different concentrations (1, 2, 3, 4 and 5% on w/w basis) of soil incorporated E. colona plant residues on emergence and seedling growth of maize and compared them with residue free soil (control). The results revealed the significant increase with soil incorporated E. colona residues in maize seedling growth till 2% E. colona plant residues, and an inhibitory effect was noticed over 2% E. colona plant residues in comparison to the control treatment. There was maximum reduction in emergence percentage, root and shoot lengths, root and shoot dry weights and seedling vigor index of maize seedlings at 5% E. colona plant residues. Quercetin, ferulic acid, sinapic acid, syringic acid, cinnamic acid, m-coumaric acid were identified as water soluble phenolic in water extract of E. colona.

Phytotoxic Effect Of Aqueous Extracts of Different Plant Parts Of Sphaeranthus Indicus On Germination And Seedling Growth Of Eleasine Coracana

2021 ◽  
Author(s):  
B. A. Kumbhar ◽  
P. J. Dabgar
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Water Extract ◽  
Aqueous Extracts ◽  
Food Crop ◽  
High Concentration ◽  
Hypocotyl Growth ◽  
Plant Parts ◽  
Phytotoxic Effect ◽  
Sphaeranthus Indicus

Abstract BackgroundThe phytotoxic influences of water extract of different plant parts of Sphaeranthus indicus (Burandu) were tested by growing test crop of Eleasine coracana (Nagli) for seedling growth. Significant differences in the growth of the test crop were observed. ResultThe hypocotyl growth of test crop depressed significantly at high concentration (6%) aqueous extract of different plant parts of S. indicus was found after 10 days. Redicle length of Nagli crop was stimulated in 2% shoot aqueous extract of Sphaeranthus indicus whereas other concentrations of all aqueous extracts of Burandu weed show phytotoxic effects as compared to control after ten days. Shoot and Root dry weights of food crop were reduced by Burandu residue. ConclusionTest crop Nagli was more sensitive to root aqueous extract while less sensitive to shoot aqueous extract of Sphaeranthus indicus.

scholarly journals Antibacterial Activity of Aqueous and Ethanol Fruit Extracts of Cucumis ‎sativus Linn. Against Selected Microorganisms at the University of ‎Maiduguri Teaching Hospital, Maiduguri

2021 ◽  
Vol 18 (2) ◽  
pp. 17-22
Author(s):  
A. O. Akanmu ◽  
H. H. Yunus ◽  
S. T. Balogun ◽  
O. A. Sodipo ◽  
L. M. Paul ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Cucumis Sativus ◽  
Aqueous Extract ◽  
Ethanol Extract ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Diffusion Method ◽  
High Concentration ◽  
Low Concentration ◽  
Fruit Extracts

Cucumber (Cucumis sativus Linn) [Cucurbitaceae] is a famous vegetable crop used for food since ancient times but little is known of its antibacterial potential. This study investigated the phytochemical constituents and antibacterial activities of the aqueous and ethanol fruit extracts of the plant against some clinical isolates (Escherichia coli, Salmonella typhi, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus pyogenes, Bacillus subtilis and Corynebacterium spp) using the disc diffusion method. The qualitative phytochemical screening revealed the presence of carbohydrates, cardiac glycosides, terpenoids, cardenolites and flavonoids. Corynebacterium spp was the most susceptible (with maximum inhibition zone of 30.00±0.00 mm). The two extracts had varied antibacterial activity at the same level. At the concentration of 400mg/ml, aqueous extract inhibited S. aureus, Corynebacterium spp, E. coli and K. pneumoniae, while ethanol extract inhibited S. aureus, S. pyogenes, S. typhi and Corynebacterium spp. B. subtilis was inhibited only at the highest (significant) concentration of 600mg/ml (7.00±0.00 mm)[p<0.05]. The MIC value for both extracts against Corynebacterium spp was 25mg/ml. The MBC value against Corynebacterium spp was observed at 50mg/ml and 25mg/ml for the aqueous and ethanol extract respectively. The results suggest that the ethanol extract was bactericidal at low concentration while the aqueous extract was bacteriostatic at low concentration and bactericidal at high concentration against Corynebacterium spp. The difference between the MBC for the two extracts was significant (p<0.05). In conclusion, the results of this study showed that extract of C. sativus could be a potential source of natural antibacterial agent

scholarly journals Allelopathic Effect of (Sorghum bicolor L.) on Radish (Raphanus sativus L.) Growth Characters

2019 ◽  
Vol 7 (4) ◽  
Author(s):  
Sahar Y. Babiker ◽  
Elnasri M. Mutwali
Keyword(s):  
Sorghum Bicolor ◽  
Chlorophyll Content ◽  
Raphanus Sativus ◽  
Pot Experiment ◽  
Allelopathic Effect ◽  
Low Concentration ◽  
P Content ◽  
Raphanus Sativus L ◽  
Sorghum Bicolor L ◽  
Growth Characters

A pot experiment was carried out to study the effect of sorghum residue on germination and some growth characters of radish. The experiment comprised of four treatments where the soil was incorporated with sorghum residue powder at 2, 2.5, 3 and 3.5%( w/w) for treatments T2, T3, T4 and T5, respectively, the control was free of sorghum residue. Results indicated that an increase was observed at low concentration of sorghum residue in germination, growth characters, but a decrease was detected in chlorophyll content and some elements (Na,Ca, K, P, ) content in radish incorporated with sorghum residue.

Allelopathic Effects of Introduced Eucalyptus Gomphocephala Extracts on Germination and Seedling Growth of Native Ceratonia siliqua in Libya

2021 ◽  
pp. 117-124
Author(s):  
Mariam F. EL-Barghathi ◽  
Ali M. Elbakkosh ◽  
Nagma F. Ammosh
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Germination Percentage ◽  
Allelopathic Effect ◽  
Ceratonia Siliqua ◽  
Extract Concentration ◽  
Laboratory Conditions ◽  
Allelopathic Effects ◽  
Eucalyptus Gomphocephala

The present study aimed to investigate the allelopathic effects of leaf aqueous extracts of introduced Eucalyptus gomphocephala L. (donor species) were collected during different growing seasons at different concentrations (0, 25, 50, 75, and 100% v/v) on germination percentage, average germination time, plumule and radical length, dry weight of radical and plumule and seedling vigor index (SVI) of native Ceratonia siliqua L. (recipient species) seedlings under laboratory conditions. Results suggested that the germination percentage and all growth parameters of C. siliqua were significantly reduced gradually with the increase of aqueous extract concentration levels and the reduction was varied and could be extract concentration and growing season dependent. The highest phytotoxic effect on germination and seedling growth was exhibited by E. gomphocephala aqueous extract at 100% concentration, followed by 50% concentration. Generally, it is concluded that the allelopathic effect of introduced E. gomphoracephala trees on native Ceratonia siliqua trees has been weak or no effectiveness in some cases under laboratory conditions. Keywords: Eucalyptus gomphocephala; Introduced species; Libya; Allelopathy; Ceratonia siliqua

scholarly journals Influence of Root and Leaf Extracts of Argemone mexicana on Germination and Seedling Growth of Blackgram, Rapeseed and Wheat

1970 ◽  
Vol 42 (2) ◽  
pp. 229-234 ◽  
Author(s):  
NK Paul ◽  
N Begum
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Leaf Extract ◽  
Dry Weight ◽  
Allelopathic Effect ◽  
Root Extract ◽  
Main Root ◽  
Leaf Extracts ◽  
Argemone Mexicana ◽  
Wheat Varieties

Allelopathic effect of different concentrations (0, 20, 40 and 60%) of root and leaf extracts of obnoxious weed Argemone mexicana on germination and seedling growth of blackgram, rapeseed and wheat varieties was studied. Percentage of germination and lengths of main root and shoot and seedling dry weight were highly significantly decreased with the increase of both root and leaf extracts. In some cases, root extract was more inhibitory, but in others leaf extract was more inhibitory. Among the varieties, Dhali of rapeseed and Akbar of wheat were most sensitive to the aqueous extract of Argemone Mexicana. Bangladesh J. Sci. Ind. Res. 42(2), 229-234, 2007

Effects of Different Sr2+ Concentrations on Seedling Growth of Indica and Japonica Cultured by Hoagland Solution

2012 ◽  
Vol 524-527 ◽  
pp. 2097-2100 ◽  
Author(s):  
Xun Chao Xiang ◽  
Yan Fang Xu ◽  
Xiao Lin Long ◽  
Wen Li Su
Keyword(s):  
Enzyme Activity ◽  
Plant Growth ◽  
Stress Tolerance ◽  
Chlorophyll Content ◽  
Seedling Growth ◽  
Dry Weight ◽  
Fresh Weight ◽  
High Concentration ◽  
Hoagland Solution ◽  
Chlorophyll Contents

The paper studied capacity of Indica and Japonica in seedling for Sr2+ stress in different concentration. Seedlings of Indica and Japonica were cultured in 6 different gradient concentrations by using Hoagland solution. Fresh weight and dry weight, rice pigment content, enzyme activity for stress tolerance etc. were measured. The results showed that Sr2+ in low concentration could promote development and with high fresh/dry weight. At 10mmol/L of Sr2+ concentration, dry weight of Japonica Jing925 was increased by 27.40%, compared with control. However, Indica CG132R was only 7.8% over its control. Sr2+ of high concentration inhibited plant growth. They had higher chlorophyll content no matter Indica or Japonica when they were cultured in low Sr2+concentration. In contrast, their chlorophyll contents were decreased. Japonica had higher POD activity than Indica, and Indica had higher CAT activity than Japonica. All in all, Japonica Jing925 had stronger defense ability than Indica CG132R in adversity environment.

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