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Tomato rhizosphere
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Extensive use of synthetic fertilizer to maximize the productivity often leads to depletion of essential soil nutrients, environmental degradation and adversely affects soil rhizosphere microbiota. The present study investigates the efficacy of Trichoderma and biochar co-application on tomato productivity, nutritional quality and soil health improvements under reduced N-P-K fertilizer application.
9p
schindler
30-12-2021
11
1
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In the present study it was aimed to obtain novel strains of actinomycetes that have the ability to promote plant growth. For this, seven soil samples from the rhizosphere of Humulus lupulus (Pazaryeri, Bilecik) were used and potential isolates were obtained. 16S rRNA genes of 30 isolates were amplified by PCR and sequenced. Eighteen isolates were found to be closely related to Streptomycetes spp. and they were tested for their proteolytic activity, cellulase activity, phosphate solubility, IAA production, biofilm formation, and growth in nitrogen-limited medium.
17p
thiencuuchu
27-11-2021
4
1
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Tomato plant growth is frequently hampered by a high susceptibility to pests and diseases. Traditional chemical control causes a serious impact on both the environment and human health.
14p
vilichoo2711
25-06-2021
17
1
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Root-knot nematode caused by Meloidogyne incognita is the major constraints in production of tomato and other solanaceous crops. Nematode diseases have been controlled more recently by means of certain beneficial bacteria that are indigenous to the rhizosphere of plants. Among the PGPR, Bacillus spp. is very important bio-agent that has several benefits compared to other rhizobacteria. Biological control is free from residual and adverse environmental effects.
7p
cothumenhmong9
18-01-2021
11
2
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In the present study, an attempt has been made to explore the bioactive rhizosphere actinomycetes for suppressing the pathogen. Rhizosphere soil samples were collected from various locations in The Nilgiris and Coimbatore districts and twenty seven different actinomycetes were isolated.
8p
trinhthamhodang9
16-12-2020
8
2
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The tomato crop attacked by early blight, late blight, leaf spots, anthracnose, Dampimg off, buckeye rot, wilts and root rots. Among these Damping off diseases in tomato caused by Rhizoctonia solani is very common to see in nurseries, an increased incidence of blight caused by Rhizoctonia solani was noticed in recent past in major tomato growing areas of Ranga Reddy district of Andhra Pradesh.
7p
nguathienthan8
20-10-2020
11
2
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In the present study About 24 isolates of fungal bio-control agent particularly Trichoderma spp and 12 bacterial isolates were isolated from the rhizosphere of tomato which was identified based on morphological and cultural characteristics.
9p
nguathienthan8
20-10-2020
8
1
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The present research work was undertaken to determine genetic variations among the isolates of Trichoderma spp. obtained from rhizosphere regions of ground nut, redgram, tomato fields using RAPD technique for evaluating their efficiency as biopesticides against major soil borne pathogens (Sclerotium rolfsii, Rhizoctonia solani, Macrophomina phaseolina, Fusarium oxysporum).
7p
chauchaungayxua8
03-10-2020
11
2
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Plant growth promoting rhizobacteria (PGPR) have gained worldwide importance and have been identified in influencing the growth and yield of many plants. On account of that, an attempt was made in the present investigation to study plant growth promoting activities of bacteria isolated from rhizospheric region of different crop fields from khorda district, Odisha, India. A total of nine bacteria was isolated and they were further characterized for their different plant growth promoting activities like production of Indole acetic acid (IAA), HCN, Siderophore & Phosphate solubilization.
7p
chauchaungayxua5
08-05-2020
32
1
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Zinc deficiency not only affects crop yields, but also nutritional quality and human health. Microbial transformation of unavailable forms of soil zinc to plant available zinc is an important approach contributing to plant zinc nutrition. Therefore, Nutrient uptake and biological activity in Tomato crop by zinc solubilizing bacterial isolates was tested under glass house condition. The study consisted of six treatments, each with five replications, including five different zinc solubilizing bacteria and uninoculated control, out of five bacteria B. aryabhattai was used as reference strain.
13p
angicungduoc4
26-04-2020
11
1
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Rhizosphere microbiome is dynamic and influenced by environment factors surrounded including pathogen invasion. We studied the effects of Ralstonia solanacearum pathogen abundance on rhizosphere microbiome and metabolome by using high throughput sequencing and GC-MS technology.
11p
viuchiha2711
21-04-2020
5
1
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PGPB are free-living soil, rhizosphere, rhizoplane, and phylosphere bacteria that, under some conditions, are beneficial for plants Most of the activities of PGPB have been studied in the rhizosphere. PGPB promote plant growth by directly affect the metabolism of the plants by providing substances that are usually in short supply. The present investigation was conducted at Department of Biological Sciences, Sam Higginbottom Institute of Agriculture, Technology and Sciences (Deemed-to-be University) Allahabad, during Rabi season 2015-16.
14p
caygaocaolon3
09-03-2020
15
0
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Use of biocontrol agents against soil borne pathogen is gaining importance in the present situation for eco-friendly management of soil borne diseases. Bioefficacy of indigenous Trichoderma spp has greater efficacy against soil borne pathogens of pulses. Native Trichoderma isolates were collected from soil rhizospheres of paddy, groundnut, brinjal and tomato grown in the Agronomy field and Central farm of Orissa University of Agriculture and Technology, Bhubaneswar and named as Isolate 1, Isolate 2, Isolate 3, Isolate 4, Isolate 5 respectively.
7p
caygaocaolon3
09-03-2020
10
1
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Tomato is affected by a large number of diseases. Among these, collars rot disease of tomato cause by S. rolfsii is a threatening disease in eastern coastal regions of Odisha. Since, this disease is soil borne in nature, it is very difficult to control by chemical fungicides. The native rhizosphere soil of tomato was used for isolation and screening of bacterial antagonists for their efficacy and growth promotion potential. A total of 54 bacterial isolates were isolated from rhizosphere of tomato of which five isolates viz.
12p
trinhthamhodang3
22-02-2020
26
1
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The potent native bioagents isolated from tomato rhizosphere have high antagonistic potential against Phytophthora infestans. Molecular characterization of fungal isolates (T-11 and T-14) was performed by using Internal Transcribed Spacer (ITS) region of 18S rRNA sequence. The sequence analyses of two isolates (MK928414 and MK928417), showed 100% similarity with Trichoderma asperellum during BLAST analysis. The phylogeny tree constructed by using sequence analysis showed the formation of cluster along with T. asperellum and both the isolates were identified as T. asperellum.
9p
nguaconbaynhay3
07-02-2020
14
0
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Arbuscular Mycorrhizal Fungi benefits plants by improving the uptake of phosphate and other nutrients from soil and also increases the disease tolerance to the host plant. The fungal pathogens cause huge loss to vegetable crops when infected. In order to overcome this problem, the influence of AMF in the control of fungal plant pathogens is studied. AMF, Glomus sp. was isolated from the rhizosphere soil of tomato plants. The wilt pathogen, Fusarium oxysporum f.sp. lycopersici was cultured from the infected roots of tomato plants.
11p
kethamoi2
15-12-2019
15
0
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Phylogenetic implication in bacterial genomics is important to understanding difficulties such as population history, antimicrobial resistance and transmission dynamics. It has been claimed that partial genome sequences would clarify phylogenetic relationships between isolated organisms, but up to now, no sustaining approach has been proposed to use competently these data. concatenation of sequences of different genes as well as building of consensus trees only consider the few genes that are shared among all organisms.
8p
kequaidan2
11-12-2019
25
0
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The present study was conducted to evaluate the in vitro efficacy of native Trichoderma spp. against Pythium spp. and Rhizoctonia solani (Kuhn.) causing damping-off disease in Tomato. One hundred eighty soil samples were collected from 11 districts of Meghalaya and ninety seven Trichoderma isolates were obtained. Rapid screening against damping off pathogens (Pythium spp. and R. solani) of tomato revealed that 20 isolates showed maximum antagonism and subsequently 20 best isolates were selected for further analysis.
14p
cothumenhmong1
08-12-2019
14
0
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