Seed Treatment with a Fungal or a Bacterial Antagonist for Reducing Corn Damping-off Caused by Species of Pythium and Fusarium.
Reads0
Chats0
TLDR
Coating seeds with the biocontrol fungus G. virens isolate Gl-3 was the most effective treatment, resulting in greater seedling stand, plant height, and fresh weight, and lower severity of root rot than those parameters from seeds treated with captan or other antagonists at both temperatures.Abstract:
Bioassays were conducted under greenhouse conditions to test the efficacy of antagonists applied to corn (Zea mays) seed for protection against seed rot and seedling damping-off at 18 and 25°C in a field soil artificially infested with a combination of Pythium ultimum, P. arrhenomanes, and Fusarium graminearum. Biomass of Gliocladium virens isolates Gl-3 or Gl-21, Trichoderma viride isolate Tv-1, or peat-based slurry of Burkholderia cepacia isolates Bc-B, Bc-T, or Bc-1 was coated individually onto corn seeds in one test, and Gl-3 or Bc-B at four inoculum levels was used in another test. Seed treatments with most of the biocontrol agents, as well as with the fungicide captan, significantly (P ≤ 0.05) increased seedling stand, plant height and fresh weight, and decreased root rot severity compared with untreated seeds in pathogen-infested soil. Coating seeds with the biocontrol fungus G. virens isolate Gl-3 was the most effective treatment, resulting in greater (P ≤ 0.05) seedling stand, plant heig...read more
Citations
More filters
Journal ArticleDOI
Microbial interactions and biocontrol in the rhizosphere
TL;DR: Multiple microbial interactions involving bacteria and fungi in the rhizosphere are shown to provide enhanced biocontrol in many cases in comparison with biocOntrol agents used singly.
Journal ArticleDOI
Soilborne plant diseases caused by pythium spp: ecology, epidemiology, and prospects for biological control
Frank N. Martin,Joyce E. Loper +1 more
TL;DR: Information on the ecology and biological control of plant pathogenic Pythium species is reviewed with the premise that a clear understanding of the ecology of the pathogen will assist in the development of efficacious biocontrol agents.
Journal ArticleDOI
Integrated management of damping-off diseases. A review
Jay Ram Lamichhane,Carolyne Dürr,André Aguiar Schwanck,Marie-Hélène Robin,Jean-Pierre Sarthou,Vincent Cellier,Antoine Messéan,Jean-Noël Aubertot +7 more
TL;DR: This paper reviews up to 300 articles of the damping-off literature and recommends further research on critical niches of complexity, such as seeds, seedbed, associated microbes and their interfaces, using novel and robust experimental and modeling approaches based on five research priorities described in this paper.
Journal ArticleDOI
Biological control of fusarium seedling blight disease of wheat and barley.
TL;DR: It seems likely that at least part of the biocontrol activity of these bacteria and chitosan may be due to the induction of systemic disease resistance in host plants.
Journal ArticleDOI
Integrated management strategies of bean root rot with Bacillus subtilis and Rhizobium in Minnesota
TL;DR: Application of B. subtilis with Rhizobium is a promising approach for the improvement of bean root rot control.
References
More filters
Journal ArticleDOI
Proposal of Burkholderia gen. nov. and Transfer of Seven Species of the Genus Pseudomonas Homology Group II to the New Genus, with the Type Species Burkholderia cepacia (Palleroni and Holmes 1981) comb. nov.
Eiko Yabuuchi,Yoshimasa Kosako,Hiroshi Oyaizu,Ikuya Yano,Hisako Hotta,Yasuhiro Hashimoto,Takayuki Ezaki,Michio Arakawa +7 more
TL;DR: A new genus Burkholderia is proposed for the RNA homology group II of genus Pseudomonas and seven species in this group were transfered to the new genus.
Journal ArticleDOI
Rhizobacteria of Sugar Beets: Effects of Seed Application and Root Colonization on Yield
Journal ArticleDOI
Biological control of Pythium damping-off and Aphanomyces root rot of peas by application of Pseudomonas cepacia or P. fluorescens to seed
TL;DR: Certain rhizosphere bacteria screened in a growth chamber bioassay for control of Pythium damping-off and Aphanomyces root rot of peas also controlled these diseases in field-grown plants.
Journal ArticleDOI
Bio-priming seed treatment for biological control of Pythium ultimum preemergence damping-off in sh2 sweet corn.
TL;DR: This process may be of interest and value to growers who wish to plant sweet corn or other temperature-sensitive crops into cold soils where damping-off is a problem and the use of chemical seed treatments is not desired.
Journal ArticleDOI
Plate-Dilution Frequency Technique for Assay of Microbial Ecology
R. F. Harris,Lee E. Sommers +1 more
TL;DR: The plate-dilution frequency technique described facilitates simultaneous enumeration of a wide range of physiologically different microorganisms in complex systems with a precision comparable to dilution tube (most probable number) methods.