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Showing 1 to 14 of 14 for “"Root-Knot Nematodes"”.
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Effects of root-knot nematodes on growth of three species of woody ornamental plants
… thamesi on A. floribunda, all 5 species of nematodes were pathogenic on the 3 host species. Striking differences in growth of the L. ovalifolium plants inoculated with the 4 root-knot species that caused significant reduction could easily be seen. Reduction in weight of the plants inoculated …
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Effects of Increased Atmospheric Carbon Dioxide Levels on Tobacco Mosaic Virus and Root-Knot Nematodes in Genetically Resistant and Susceptible Tomato Plants
… on the effects of elevated CO<sub>2</sub> on Root-Knot Nematode (<em>Meloidogyne arenaria</em>) and Tobacco Mosaic Virus (TMV) infection in genetically resistant versus susceptible tomatoes (<em>Solanum lycopersicum</em>). Both resistant and susceptible tomatoes were grown in chambers with …
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An investigation into the potential of crude and partially separated material of selected non–crop plant species as control agents of root–knot nematodes (Meloidogyne incognita) in tomato
Plant-parasitic nematodes (PPN) are a serious problem in vegetable production and can cause severe damage to several crops. In rural, low-input farming nematode damage is much higher and yields can be completely destroyed. Some Commercial nematicides have been withdrawn from the market due to …
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Characteristics of biological control agents and their antagonism against rice pathogens and pests
… may cause significant yield loss such as rice root-knot nematodes, bacterial leaf blight, and brown planthopper. Currently, pesticide use is the dominant practice for pest and disease management in Asian rice farming. The use of beneficial microbial agents for the control of pathogens and pests …
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Reproduction of the root-knot nematode Meloidogyne arenaria on flue-cured tobacco possessing resistance genes Rk1 and/or Rk2 and the impact of parasitism on the accumulation of nicotine in conventional and low-alkaloid tobacco
… of flue-cured tobacco in regions where root-knot nematodes present a threat to growers. Resistance to races 1 and 3 of M. incognita, historically the most significant root-knot nematode threat to tobacco production, is now widely available in commercially available flue-cured tobacco …
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Investigation of the role of root flavonoids in the interaction of chickpea with nitrogen-fixing symbionts and parasitic nematodes
… during the early signal interaction between host roots and both microbes. For example, attraction of rhizobia to the root and the activation of nodulation genes are controlled by exudation of flavonoids from the legume root into the soil. Movement of nematodes into the root can also be affected by …
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Investigation of the role of root flavonoids in the interaction of chickpea with nitrogen-fixing symbionts and parasitic nematodes
… during the early signal interaction between host roots and both microbes. For example, attraction of rhizobia to the root and the activation of nodulation genes are controlled by exudation of flavonoids from the legume root into the soil. Movement of nematodes into the root can also be affected by …
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Reproduction of a root-knot nematode population on flue-cured tobacco homozygous for Rk1 and/or Rk2 resistance genes and the effect of soil temperature on resistance gene efficacy
… cultivars is a main control strategy for root-knot nematodes in flue-cured tobacco (Nicotiana tabacum L.). Most commercial cultivars possess the Rk1 gene, providing resistance to races 1 and 3 of Meloidogyne incognita and race 1 of M. arenaria. This initiated a shift in root-knot …
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Nature of the root-knot resistance introduced into Lycopersicon esculentum by interspecific crosses with Lycopersicon peruvianum
… of genetic factors controlling resistance to the root-knot nematodes. Four resistant varieties of tomato were crossed with one susceptible variety. The F₁ populations showed hybrid vigor for height, yield, and fresh weight of roots, stems, and leaves. Resistance to M. javanica, M. incognita, M. …
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The effect of seaweed concentrate on turfgrass growth, nematode tolerance and protein synthesis under moisture stress conditions
… and moisture stress on the pathogenicity of root-knot nematodes (RKN) in turfgrass plants. The results indicated that RKN infection adversely affected both visual and functional parameters of bentgrass. Salinity and moisture stress further exaggerated the damage caused by RKN. Under …
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Managing Weeds and Soilborne Pests with Fumigant and Non-Fumigant Alternatives to Methyl Bromide
… control in tomato. Grafting onto resistant rootstocks was tested for bacterial wilt and nematode management in tomato. In the absence of a soil fumigant, TIF suppressed yellow nutsedge better than VIF. TIF increased fumigant retention compared to VIF at similar application rates. Reduced …
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The roles of proteinases and proteinase inhibitors in plant-nematode interactions
… the first part of this study, tomato and tobacco root cultures and seedlings aseptically grown in agar medium were developed to test the roles of proteinase inhibitor transgenes in enhancing plant resistance against nematodes. Root galling in cultured root and seedlings expressing inhibitor I or …
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Exploring the Genomic, Plant Growth Promoting, and Biocontrol Potential of a novum species 'Candidatus Pseudomonas auctus' JDE115 with its description
… bacterium isolated from soybean (Glycine max) root nodules in Virginia. Growth occurred at 0–5.0% NaCl (optimum 1%), pH 6.0–10.0 (optimum 7.0), and 10–40°C (optimum 28°C). Phylogenetic analysis based on the 16S rRNA gene and whole-genome sequencing placed JDE115 within the genus Pseudomonas, …
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Phytochemistry in the development of pesticides and biocides
… for the nematicidal properties against the root knot nematode Meloidogyne spp., in the form of pastes and extracts for soil amendment as well as plant secondary metabolites isolated from the afore mentioned matrixes and used individually or in binary mixtures to create synergism. The effects …