scholarly journals Evaluation of plant extracts, fungicides, bio-agent and soil amendments against foot and root rot disease of betelvine caused by Sclerotium rolfsii under field condition

2020 ◽  
Vol 44 (4) ◽  
pp. 669-677
Author(s):  
MH Rahman ◽  
MR Islam ◽  
FM Aminuzzaman ◽  
A Latif ◽  
S Nahar

The studies were carried out on the management of foot and root rot disease caused by Sclerotium rolfsii Sacc. of betelvine (Piper betle L.) during April, 2017 to April, 2018 in a betelvine orchard (baroj) in the experimental farm of Sher-e-Bangla Agricultural University, Dhaka. There were 10 treatments, namely Provax 200, Tilt 250 EC, Score 250 EC, Pencozeb 80 WP, Garlic clove extract, Allamanda leaf extract, Poultry waste, Vermi-compost, Trichoderma harzianum and Control. The in-vivo evatuation, plant was inoculated by S. rolfsii after six month of plantation. The evaluation revealed that the lowest disease incidence of 8.33% was found in Provax 200 whereas the highest disease incidence of 91.67 was recorded under the untreated control treatment. The maximum of 90.91% reduction in disease incidence over control was found under Provax 200, which was significantly higher compared to all other treatments. Among the treatments, Provax 200 was noted as the most effective fungicide followed by Score 250 EC. The highest yield (7.57 t/ha) at 120 days after inoculation was found in case of Provax 200 which was 330.1% increased over untreated control. Stem and soil treated with Provax 200 including spraying at 3 days after inoculation, then sprayed at 7 days’ intervals minimized disease incidence and increased yield. Among the eco-friendly approach, Garlic clove extract, Trichoderma harzianum and soil amended with Vermi-compost also showed better performance in controlling foot and root rot disease of betelvine as compared to control. Bangladesh J. Agril. Res. 44(4): 669-677, December 2019

2013 ◽  
Vol 2013 ◽  
pp. 1-10
Author(s):  
Mokhtar M. Abdel-Kader ◽  
Nehal S. El-Mougy

Integrated commercial blue-green algae extracts and bioagents treatments against vegetables root rot incidence when used as soil drench under greenhouse and plastic house conditions were evaluated. All applied treatments reduced significantly root rot incidence at both pre- and postemergence growth stages of cucumber, cantaloupe, tomato, and pepper plants compared with untreated check control. In pot experiment, the obtained results showed that treatments ofTrichoderma harzianumorBacillus subtiliseither alone or combined with commercial algae extracts were significantly superior for reducing root rot disease for two tested vegetable plants compared with the other tested treatments as well as control. It is also observed that rising concentrations of either algae products, Oligo-X or Weed-Max, were reflected in more disease reduction. Promising treatments for controlling root rot disease incidence were applied under plastic houses conditions. As for field trails carried out under plastic houses conditions at different locations, the obtained results revealed that the applied combined treatments significantly reduced root rot incidence compared with fungicide and check control treatments. At all locations it was observed that Weed-Max (2 g/L) +Bacillus subtilissignificantly reduced disease incidence of grown vegetables compared with Oligo-X (2 mL/L) +Trichoderma harzianumtreatments. An obvious yield increase in all treatments was significantly higher than in the control. Also, the harvested yield in applied combined treatments at all locations was significantly higher than that in the fungicide and control treatments.


2018 ◽  
Vol 42 (4) ◽  
pp. 609-620
Author(s):  
MI Faruk ◽  
ML Rahman

Efficacy of rice bran, wheat bran, grass pea bran and their combinations with or without mustard oilcake (MOC) were tested as substrate of Trichoderma harzianum based bio-fungicides for the management of foot and root rot disease of cauliflower caused by Sclerotium rolfsii in the seedbed during three consecutive growing seasons from 2011 through 2014 in the net house of Bangladesh Agricultural Research Institute, Gazipur. The seedbed soil was inoculated with pathogen S. rolfsii colonized on barley grain before treatment with T. harzianum based bio-fungicides. The results of three years trial revealed that T. harzianum based bio-fungicides effectively reduced pre-emergence and post-emergence mortality of cauliflower seedling in seedbed. Besides, vegetative growth of cauliflower seedlings viz. shoot length, shoot weight, root length and root weight were enhanced significantly by different substrates based T. harzianum bio-fungicides in S. rolfsii sick seedbed. The substrates rice bran, wheat bran, grass pea bran and their combination with mustard oilcake (MOC) were equally suitable for effective formulation of T. harzianum bio-fungicides against foot and root rot disease of cauliflower in seedbed.Bangladesh J. Agril. Res. 42(4): 609-620, December 2017


2014 ◽  
Vol 39 (2) ◽  
pp. 197-209
Author(s):  
MI Faruk ◽  
ML Rahman ◽  
MMH Mustafa ◽  
MM Rahman ◽  
MA Rahman

Eight different organic matters were tested for their suitability as carrier materials to prepare Trichoderma harzianum based bio-fungicides for controlling foot and root rot disease of tomato caused by Sclerotium rolfsii. Four independent experiments were conducted and found that the carrier materials used singly or in combinations were suitable to prepare the bio-fungicides. Mixed use of carrier materials gave better results as compared to single ones. When wheat bran + rice bran, wheat bran + MOC+ rice bran, grasspea bran + rice bran, and grasspea bran +MOC+ rice bran were used as carrier materials. T. harzianum based bio- fungicides reduced seedling mortality of tomato by 20.33, 19.33, 24.33, and 19.34%, respectively. Treatment of soil with those biofungicides previously infested with S. rolfsii caused considerable increased in shoot and root growth of tomato. Based on the findings of investigation, the above mentioned carrier materials might be used to prepare T. harzianum based bio-fungicides. DOI: http://dx.doi.org/10.3329/bjar.v39i2.20415 Bangladesh J. Agril. Res. 39(2): 197-209, June 2014


2018 ◽  
Vol 16 (1) ◽  
pp. 78-86
Author(s):  
Mohammad Nuray Alam Siddique ◽  
Abu Noman Faruq Ahmmed ◽  
Nusrat Jahan ◽  
Md Golam Hasan Mazumder ◽  
Md Rafiqul Islam

An experiment was conducted to evaluate the efficacy of fungicides, plant extracts, organic manure and biocontrol-agents against foot and root rot disease of eggplant caused by Sclerotium rolfsii. Five chemical fungicides, two plant extracts, organic amendment - poultry manure and biocontrol-agent Trichoderma harzianum were evaluated against the disease in field condition. Fungicides and plant extracts were sprayed at the base of each plant and adjacent soil at 40, 50 and 60 days after transplanting. Organic manure and biocontrol-agent were applied to the soil before transplanting. The lowest disease incidence (7.10 %) and no disease severity were observed in Bavistin 50 WP at 120 DAT followed by Topgan 50 WP and Ridomil Gold. Higher yield and plant growth like plant hight (88 cm), number of branch/plant (7.33) and number of leaf/branch (25.33) was also supported by Bavistin 50 WP . The highest benefit cost ratio was also calculated in Bavistin 50 WP followed by Topgan 50 WP and Ridomil Gold. Application of biocontrol-agent (T. harzianum) also showed promising effect against foot and root rot disease.The Agriculturists 2018; 16(1) 78-86


2020 ◽  
Vol 8 (4) ◽  
pp. 496
Author(s):  
Dilfuza Egamberdieva ◽  
Vyacheslav Shurigin ◽  
Burak Alaylar ◽  
Hua Ma ◽  
Marina E. H. Müller ◽  
...  

The effects of biochar on plant growth vary depending on the applied biochar type, study site environmental conditions, microbial species, and plant–microbial interactions. The objectives of the present study were therefore to assess 1) the response of growth parameters of lupin and root disease incidence to the application of three biochar types in a loamy sandy soil, and 2) the role of endophytic bacteria in biological control of root rot disease incidence in lupin after the amendment of soil with different biochar types. As biochar types we tested (i) hydrochar (HTC) from maize silage, (ii) pyrolysis char from maize (MBC), and (iii) pyrolysis char from wood (WBC) at three different concentrations (1%, 2%, and 3% of char as soil amendments). There were no significant effects in lupin shoot and root growth in soils amended with WBC at any of the concentrations. MBC did not affect plant growth except for root dry weight at 2% MBC. HTC char at 2% concentration, significantly increased the root dry weight of lupin by 54–75%, and shoot dry weight by 21–25%. Lupin plants grown in soil amended with 2% and 3% WBC and MBC chars showed 40–50% and 10–20% disease symptoms, respectively. Plants grown in soil without biochar and with HTC char were healthy, and no disease incidence occurred. Pseudomonas putida L2 and Stenotrophomonas pavanii L8 isolates demonstrated a disease reduction compared to un-inoculated plants under MBC and WBC amended soil that was infested with Fusarium solani.


2014 ◽  
Vol 30 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Syed Ehteshamul-Haque ◽  
Abdul Ghaffar

Seed treatment of soybean with <i>Bndyrhizobium japonicum, Trichoderma harzianum, T. viride, T. hamatum, T. koningii</i> and <i>T. pseudokoningii</i> significantly controlled the infection of 30-day-old seedlingsby <i>Maerophomina phaseolina, Rhizoctonia solani</i> and <i>Fusarium</i> spp. In 60-day-old plants <i>Trichoderma</i> spp.. and <i>B. japonicum</i> inhibited the grouth of <i>R. solani</i> and <i>Fusarium</i> spp., whereas the use of <i>B. japonicum</i> (TAL-102) with <i>T. harzianum. T. viride, T. koningii</i> and <i>T. pseudokoningii</i> controlled the infection by <i>M. phaseolina. Greater grain yield was recorded when B. <i>japonium</i> (TAI-102) was used with <i>T. hamatum</i>.


1970 ◽  
pp. 34
Author(s):  
J. Sherly, R. Renuka

Five wild Solanum species were screened against dry root rot disease in glass house condition with commonly cultivated brinjal as control. The disease was scored at different day’s interval on 30th, 45th and 60th days after planting (DAP). Among the wild species screened and evaluated the species S. torvum was observed without any disease incidence i.e (0). The least per cent of disease incidence was observed in S. incanum (38.60%) which was followed by S. xanthocarpum (42.80%), S. viarum (64.20%) and CO2 (78.50 %) susceptible check at 30 DAP. Secondary metabolites were analysed from both wild and control plants. Based on the per cent disease incidence values S. torvum was graded as ‘Resistant’ against M. phaseolina and can be recommended as a best rootstock for brinjal under varying climatic condition especially where the dry climate prevails.


1970 ◽  
Vol 33 (4) ◽  
pp. 617-622 ◽  
Author(s):  
KM Khalequzzaman ◽  
I Hossain

The experiment was conducted during 2002-03 in the infested plot of the BINA sub-station at Ishurdi, Pabna to evaluate the effectiveness of Rhizobium strains and biofertilizers in controlling the foot and root rot disease, and to increase green pod yield of Bush bean under field condition. The highest germination (91.6%) was recorded with BINAR P36, which was statistically similar to BAUR 107, BARIR 7029, BARIR 1000, BINAR P6 and BINA biofertilizer. The lowest germination (77.9%) was found in untreated control. The highest foot and root rot (24.5%) was observed in untreated control and the lowest (10.00%) was in BINAR P36. Biofertilizers and Rhizobial strains decreased foot and root rot upto 59.2% over untreated control. The highest green pod yield (20.8 tlha) was obtained for using BINAR P36, which was followed by BARIR 7029, BARIR 892, BARIR 1000, BINAR P6 and BINA biofertilizer. The lowest green pod yield (13.6 tlha) was found in untreated control. Rhizobium strain BINAR P36 may be used as seed treatment for controlling foot and root rot and increasing green pod yield of Bush bean. Key Words: Rhyzobium, biofertilizers, foot and root rot, bush bean. doi: 10.3329/bjar.v33i4.2305 Bangladesh J. Agril. Res. 33(4) : 617-622, December 2008


Sign in / Sign up

Export Citation Format

Share Document