scholarly journals Feasibility of Quality Improvement of Jute Seed by Plant Extracts

2013 ◽  
Vol 22 (1-2) ◽  
pp. 1-10
Author(s):  
KK Roy ◽  
MMR Khan ◽  
MM Hossain ◽  
MAR Khokon
Keyword(s):  
Quality Improvement ◽  
Seed Germination ◽  
Fungal Infection ◽  
Plant Extracts ◽  
Untreated Control ◽  
Leaf Extract ◽  
The Other ◽  
Seedling Vigor ◽  
Neem Leaf Extract

Five plant extracts viz. garlic tablet, allamanda tablet, neem leaf extract, bishkatali leaf extract and zinger rhizome extract were assessed as seed treating agents against seed-borne pathogens of jute. Farmers’ seeds carry seed-borne fungi and their prevalence varies in varieties and locations. Garlic tablet was effective in controlling seed-borne fungal infection; consequently the seed germination was high. The effect of allamanda tablet was similar to that of garlic tablet. Neem leaf extract was able to reduce seed-borne fungi but the other three extracts were not effective in controlling seed-borne infection. The performance of garlic tablet was similar to that of Vitavax-200. A significant increase in seedling vigor was also observed over untreated control after garlic treatment.DOI: http://dx.doi.org/10.3329/pa.v22i1-2.16461 Progress. Agric. 22(1 & 2): 1 – 10, 2011

scholarly journals Efficacy of Some Plant Extracts in Controlling Seed-Borne Fungal Infections of Mustard

1970 ◽  
Vol 23 (2) ◽  
pp. 168-170 ◽  
Author(s):  
M Abdul Latif ◽  
Abu Kaoser M Saleh ◽  
M Ashik Iqbal Khan ◽  
Habibur Rahman ◽  
M Anwar Hossain
Keyword(s):  
Seed Germination ◽  
Plant Extracts ◽  
Leaf Extract ◽  
Fungal Infections ◽  
Garlic Extract ◽  
Onion Bulb ◽  
Mustard Seed ◽  
Ginger Extract ◽  
Neem Leaf Extract ◽  
Mustard Seeds

Efficacy of various concentrations of four plant extracts prepared from garlic, Neem leaf, ginger and onion bulb on reduction of seed-borne fungi was evaluated. Among the treatments, garlic extract preparations (1:0, 1:1 and 1:2) and fungicide Rovral (0.25% of seed weight) had shown to enhance seed germination remarkably compared to the other treatment. The percent reduction of fungal incidence achieved with three concentrations of the plant extracts varied from 57.0-72.0% for garlic extracts, 48.4-57.0% for Neem leaf extract, 23.6-32.2% for ginger extract, and 10.7-15.1 for onion bulb extract. The fungi isolated from the mustard seeds included species of Alternaria, Aspergillus, Chaetomium, Curvularia, Fusarium, Penicillium and Rhizopus. It was also found that garlic extract was most effective in controlling the seed-borne fungi among the plant extracts studies. The effectiveness of concentrated (1:0) preparation of garlic extract was comparable to the fungicide Rovral. In addition, Neem leaf extract was moderately effective in removal of mycoflora of mustard seeds, while ginger and onion bulb extracts were the least effective in removal of the seed-borne fungi. Keywords: Mustard, Seed-borne fungi, Plant extracts, Seed germination, Control of seed-borne fungiDOI: http://dx.doi.org/10.3329/bjm.v23i2.887 Bangladesh J Microbiol, Volume 23, Number 2, December 2006, pp 168-170

scholarly journals Health and Quality of Wheat Seed Samples Collected from Sadar Upazilla of Thakurgaon District and Control of Seed-Borne Fungi

2020 ◽  
pp. 46-58
Author(s):  
M. A. Jabbar ◽  
N. Muhammad ◽  
M. M. Rahaman ◽  
M. G. Haque
Keyword(s):  
Seed Germination ◽  
Fungal Infection ◽  
Leaf Extract ◽  
Fungal Infections ◽  
Bipolaris Sorokiniana ◽  
Hot Water ◽  
Wheat Seed ◽  
Wheat Varieties ◽  
Neem Leaf Extract ◽  
Wheat Seeds

Wheat seed samples were collected from ten unions of sadar upazilla of Thakurgaon district in wheat growing season of 2011. Seeds were tested by blotter method at Seed Pathology Center (SPC), Bangladesh Agricultural University, Mymensingh during the months April to November 2011 for recording and identifying the seed-borne fungi associated with wheat seeds. The health status of 20 seed samples were determined whereas five genera fungi were identified from a total of six fungus. The fungi were Bipolaris sorokiniana, Alternaria tenuis, Fusarium spp, Penicillium sp, Aspergillus flavus and Aspergillus niger. Prevalence of the total as well as the individual seed-borne fungal infections that were recorded varied significantly with respect to wheat varieties and sources of seed collection. Seed samples collected from Jagonathpur and Gorea unions of sadar upazilla showed highest percentage of seed-borne infection compared to the samples collection from other unions for both varieties. The seed-borne fungal infection in Hazar-8 and Satabdi collected from other unions showed lowest percentage of seed-borne fungal infection than that of Jagonathpur and Gorea unions. Seed germination also varied significantly depending on the varieties and the seed sources and a positive correlation between seed germination and seed-borne fungal infections were observed. Three seed treating agents viz., neem leaf extract 1:2, hot water and Provax were evaluated for controlling seed-borne fungi associated with wheat seeds. Among the seed treating agents, Provax was found superior to reduce the seed-borne infection of wheat. The results also showed that neem leaf extract at 1:2 dilutions was observed to be the most effective in reducing seed-borne fungi with highest percentage of germination followed by hot water treatment.

scholarly journals Evaluation of Some Indigenous Plant Extracts for Suppressing Bipolaris sorokiniana in Wheat Seed

2010 ◽  
pp. 96-104
Author(s):  
Rokshana Panna ◽  
FM Aminuzzaman ◽  
MR Islam ◽  
MHM Borhannuddin Bhuyan
Keyword(s):  
Seed Germination ◽  
Plant Extracts ◽  
Leaf Extract ◽  
Bipolaris Sorokiniana ◽  
Leaf Extracts ◽  
Pathology Laboratory ◽  
Black Cumin ◽  
Seed Pathology ◽  
Indigenous Plant ◽  
Black Cumin Seed

Studies were conducted in the Seed Pathology Laboratory, Department of Plant Pathology, Sher-e-Bangla Agricultural University to evaluate some indigenous plant extracts on the incidence of Bipolaris sorokiniana of wheat and seed germination. Seed treated with plant extracts reduced the incidence of Bipolaris sorokiniana. The lowest incidence was counted (12.33%) in seeds treated with Burmuda grass extracts (1:2W/V). While the highest seed germination (99.60%) was recorded in seeds treated with this grass extract followed by 99.33% germination in seeds treated with Neem leaf extract (1:2W/V), 98.00% with nut sedge grass rhizome extract (1:2 W/V), 87.67% with Allamanda leaf extract (1:2W/V). Comparatively the lowest incidence of Bipolaris sorokiniana (14.00%) was observed in seeds treated with Neem leaf extracts (1:2W/V) followed by 14.50% in seeds treated with Nut sedge grass rhizome extracts (1:2W/V), Black cumin seed extracts (15.20%) and Allamanda leaf extract (24.00%).

scholarly journals Suppression of Fusarium moniliforme in Rice by Rice-Associated Antagonistic Bacteria

Plant Disease ◽  
1997 ◽  
Vol 81 (1) ◽  
pp. 49-52 ◽  
Author(s):  
A. M. Rosales ◽  
T. W. Mew
Keyword(s):  
Seed Germination ◽  
Fusarium Moniliforme ◽  
Mycelial Growth ◽  
Field Trials ◽  
The Philippines ◽  
The Other ◽  
Antagonistic Bacteria ◽  
Seedling Vigor ◽  
Bacterial Strains

The potential of antagonistic bacteria from paddy water, rhizosphere soils, sclerotia, and rice plants to control “bakanae” caused by Fusarium moniliforme was assessed. Experiments were conducted to determine the in vitro antibiosis and effect of bacteria on seed germination. Out of 441 isolates, 113 were inhibitory to mycelial growth of the pathogen. Bacterial strains were classified into three groups based on effect on seed germination: (i) those that promoted germination and enhanced seedling vigor; (ii) those that had no effect on germination; and (iii) those that were deleterious and inhibited germination. Bacterization of naturally infected seeds reduced bakanae incidence in seedbox and seedbed tests. In a seedbed experiment with IR 58 seeds soaked in suspensions of bacterial strains, bakanae incidence and disease control ranged from 0.9 to 6.8% and 71.7 to 96.3%, respectively. From the 3 years of field trials, 10 strains reduced bakanae. Five strains consistently reduced bakanae, but the other five exhibited variable effects among trials. Specificity of suppression by antagonistic bacteria against different pathogenic isolates of F. moniliforme from various locations in the Philippines was observed.

scholarly journals Fungicide Seed Treatment Effects on Seedling Damping-off of Pumpkin Caused by Phytophthora capsici

Plant Disease ◽  
2003 ◽  
Vol 87 (1) ◽  
pp. 63-68 ◽  
Author(s):  
M. Babadoost ◽  
S. Z. Islam
Keyword(s):  
Seed Germination ◽  
Untreated Control ◽  
Mycelial Growth ◽  
Seed Treatment ◽  
Culture Medium ◽  
Phytophthora Capsici ◽  
Field Trials ◽  
Seedling Vigor ◽  
Damping Off

Apron XL LS (mefenoxam) and Allegiance FL (metalaxyl) were highly inhibitory to growth of mycelium of Phytophthora capsici in vitro. Effective dose (ED50) of mefenoxam and metalaxyl for 50% inhibition of mycelial growth, for all five isolates of P. capsici tested, was 0.98 and 0.99 μg a.i./ml of culture medium, respectively. For mefenoxam at 200 μg a.i./ml, sporangium and zoospore germination were reduced by 92 and 96%, respectively, and 21 and 24%, respectively, for metalaxyl. In greenhouse studies, seed treatment with mefenoxam (0.42 ml of Apron XL LS/kg of seed) and metalaxyl (0.98 ml of Allegiance FL/kg of seed) significantly reduced pre- and post-emergence damping-off of seedlings caused by P. capsici in three pumpkin cultivars (Dickinson, Hybrid-401, and Hybrid-698) tested. Thirty-one days after seeding, at inoculum levels of 0, 90, 600, 1,400, and 4,000 CFU/g of soil, the average seedling stands for mefenoxam treatment were 98.4, 93.8, 88.3, 77.8, and 64.8%; for metalaxyl, 99.1, 85.3, 85.8, 73.5, and 59.3; and for the untreated control, 97.5, 55.2, 45.7, 37.0, and 22.9%, respectively. In field trials, the average seedling stands 35 days after seeding were 76.7, 74.7, and 44.9% for mefenoxam, metalaxyl, and untreated control, respectively. Seed treatment with mefenoxam or metalaxyl did not have any significant effect on either seed germination or seedling vigor.

scholarly journals Effect of Biopesticids in Controlling Leaf Curl Virus of Chilli

2018 ◽  
Vol 5 (2) ◽  
pp. 75-80
Author(s):  
K. M. Khalequzzaman ◽  
Samima Naznin ◽  
Abul Khair
Keyword(s):  
Untreated Control ◽  
Leaf Extract ◽  
Disease Incidence ◽  
Cow Milk ◽  
Rabi Season ◽  
Neem Extract ◽  
Cow Urine ◽  
Leaf Curl Virus ◽  
Neem Leaf Extract ◽  
Leaf Curl

The experiment was conducted in the field laboratory of Spices Research Center, BARI, Shibganj, Bogra, Bangladesh during Rabi season of 2014-15 to find out the effect of biopesticides in controlling vector as well as leaf curl virus of chilli. The maximum infected plants (26.85%) were recorded in untreated control and the minimum infected plants (14.75%) were in Malathion (0.2%) which was statistically identical to all other biopesticides except cow urine (1:2). The highest disease reduction (45.13%) over untreated control was obtained from Malathion (0.2%) followed by cow urine (1:1) and neem leaf extract (1:2), and the lowest (26.37%) was obtained from cow milk (1:2). The highest yield (18.33 t/ha) was recorded in Malathion (0.2%) and the lowest (11.28 t/ha) was recorded in untreated control. All the biopesticides resulted least disease incidence and more yield compared to control. Among the biopesticides, cow urine (1:1), cow milk (1:1) and neem extract (1:2) showed comparatively better results against control. So, Melathion or biopesticides, cow urine (1:1), cow milk (1:1) and neem leaf extract (1:2) may be sprayed for controlling vector as well as leaf curl virus and increasing yield of chilli.

scholarly journals Management of early blight of potato using bio control agents and plant extracts

2015 ◽  
Vol 7 (2) ◽  
pp. 860-864
Author(s):  
Sahar Murmu ◽  
S. Dey ◽  
A. Chakraborty
Keyword(s):  
Plant Extracts ◽  
Leaf Extract ◽  
Early Blight ◽  
Tuber Yield ◽  
Trichoderma Viride ◽  
Control Treatment ◽  
Human Beings ◽  
Neem Leaf Extract ◽  
Chemical Fungicides

The early blight of potato is mainly controlled by using chemical fungicides but chemical fungicides have got some adverse effect on environment as well as human beings. Keeping this in mind an experiment was conducted to test the efficacy of four plant extracts (tea, garlic, onion and neem leaf extract) and four bio-control agents (Trichoderma viride, Pseudomonas fluorescence, Streptomyces graseoviridis and Bacillus substilis) in controlling early blight of potato under field and in in vitro condition. These antifungal compounds were applied 3 times at 7days interval after first appearance of the disease in the field. Among the bio control agents T. viride was found highly effective in per cent disease reduction (52.39%) of disease over control treatment. The tuber yield (25.51 t/ ha.) was also highest in this treatment compared to control treatment (19.53 t/ha). This was followed by treatment T2 i.e. P. fluorescens where per cent incidence and intensity of disease were (65.00%) and (19.10%) respectively with 38.97% reduction of disease over control with tuber yield 23.65 t/ha. It was followed by S. graseoviridis where per cent incidence and intensity of disease were (68.00%) and (22.90%) respectively with 26.30% reduction of disease over control with tuber yield 21.07 t/ha. Among plant extracts, only neem leaf extract exhibited per cent reduction of disease (33.18%) over control treatment in field condition and inhibition of radial growth (59.85%) and spore germination (81.95%) in in vitro condition. Therefore both T. viride and neem can be used for managing the early blight of potato.

scholarly journals Effect of Fungicides and Plant Extracts in the Management of Foliar, Twig and Fruit Diseases of Citrus (Citrus limon)

2017 ◽  
Vol 10 (1) ◽  
pp. 93-100
Author(s):  
K Yesmin ◽  
M Ahmad ◽  
MB Momtaz ◽  
K Begum
Keyword(s):  
Plant Extracts ◽  
Leaf Extract ◽  
Allium Sativum ◽  
Research Work ◽  
Zingiber Officinale ◽  
Citrus Canker ◽  
Citrus Limon ◽  
Improvement Project ◽  
Citrus Diseases ◽  
Neem Leaf Extract

A research work was conducted on citrus plants raised at GPC, of Fruit Tree Improvement Project (FTIP) at Horticulture Farm, Bangladesh Agricultural University, Mymensingh, to investigate the effect of fungicides and plant extracts in controlling the scab, die-back and canker. Three fungicides viz. Cupravit 50 wp (0.4%), Dithane M-45 (0.3%), Rovral 50 WP (0.2%) and extracts of 3 plants viz. Neem {Azadirachta indica), Ginger {Zingiber officinale) and Garlic {Allium sativum) were applied for controlling the citrus (C. limon) diseases (scab, die-back and canker). All the fungicides showed significant effect in the control of the above mentioned citrus diseases. The highest reduction of the scab, die-back and canker diseases was recorded applying Rovral 50 WP. Neem leaf extract was the most effective in controlling canker of leaf and fruit. Garlic extract and Neem leaf extract were the most effective in controlling die-back of twig and branches of citrus, respectively. From the above results it can be concluded that Rovral 50 WP is the most effective chemical for controlling all citrus (C. limon) diseases and citrus canker can successfully be controlled specially by Neem leaf and garlic extract.J. Environ. Sci. & Natural Resources, 10(1): 93-100 2017

Therapeutic efficacy of some extracts of hot pepper fruits (Capsicum annuum) and Sumac seeds (Rhus coriaria) on the growth of some isolated dermatophytes species

2018 ◽  
Vol 1 (3) ◽  
pp. 52-62
Author(s):  
Sara Omran ◽  
Abdulghani Alsamarai ◽  
Firas Razzzaq
Keyword(s):  
Antifungal Activity ◽  
Fungal Infection ◽  
Aqueous Extract ◽  
Plant Extracts ◽  
Therapeutic Efficacy ◽  
Diffusion Method ◽  
Quantitative Detection ◽  
Hot Pepper ◽  
Alcoholic Extract ◽  
Dermatology Clinic

Background: Fungal infections are one of the common skin diseases with difficulty in their treatment approach. The present efficient drugs for fungal infection are limited. Aim: To determine the therapeutic efficacy of plant extracts as alternative antifungal agents. Materials and methods: 100 clinical samples [68 from female and 32 from male] were collected during the period from March to July 2017 from subjects attending Dermatology Clinic in Salah Uldean General Hospital. Fungal infection was diagnosed with using KOH wet preparation. Fungal species identified by using conventional approach. The active ingredients existing in the plant extracts were detected and analyzed through qualitative and quantitative detection technique of chemical compounds using a high performance liquid chromatographic device (HPLC). Agar diffusion method was used to determine antifungal activity of plant extracts. Results: Direct microscopic examination showed that there were (75%) positive samples, while culture shows (67%) positive samples. The isolated dermatophytes belong to Epidermophyoton, Microsporum, and Trichophyton genus. The predominant dermatophytes were T. rubrum (25%) species. The highest frequency of infection was in the age group of 11-20 years. The sensitivity of the tested fungi to the aqueous and alcoholic plant extracts varies. Alcoholic extract of the hot pepper plant was more effective as antifungal than the aqueous extract of the same plant. However, aqueous hot pepper extracts was more effective against T. mentagrophyte than that of alcoholic extract. Additionally, alcoholic Sumac extract shows higher efficacy that aqueous extract. Conclusion: Hot pepper and Sumac extracts show antifungal activity against Microsporum canis, Trichophyton rubrum and T. mentagrophyte.

Sign in / Sign up

Export Citation Format

Share Document