Interrelationships Among Macrophomina phaseolina, Criconemella xenoplax, and Tylenchorhynchus annulatus on Grain Sorghum
Microplot experiments were established in 1992, 1993, and 1994 to investigate the relationships among Macrophomina phaseolina, Criconemella xenoplax, mad Tylenchorhynchus annulatus on grain sorghum in Louisiana. A factorial treatment arrangement of two grain sorghum hybrids (De Kalb DK 50 and Pionee...
| Publié dans: | Journal of nematology. - 1969. - 29(1997), 2 vom: 09. Juni, Seite 199-208 |
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| Auteur principal: | |
| Autres auteurs: | , |
| Format: | Article |
| Langue: | English |
| Publié: |
1997
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| Accès à la collection: | Journal of nematology |
| Sujets: | Journal Article Criconemella xenoplax Macrophomina phaseolina Sorghum bicolor Tylenchorhynchus annulatus charcoal rot grain sorghum interaction |
| Résumé: | Microplot experiments were established in 1992, 1993, and 1994 to investigate the relationships among Macrophomina phaseolina, Criconemella xenoplax, mad Tylenchorhynchus annulatus on grain sorghum in Louisiana. A factorial treatment arrangement of two grain sorghum hybrids (De Kalb DK 50 and Pioneer hybrid 8333), three levels of M. phaseolina (0, 10, and 100 colony-forming units (CFU)/g soil), and three nematode inoculum levels (0, 1x, and 2x) were used. Nematode inocula at 1x levels were 929, 1,139, and 1,445 C. xenoplax and T. annulatus/microplot in 1992, 1993, and 1994, respectively. Plants were harvested after 90-105 days. In all 3 years, grain sorghum root and head dry weights were suppressed as nematode inoculum level increased. These reductions were detected both in the absence and in the presence of M. phaseolina at 10 CFU/g. Reproduction of both nematode species was suppressed by M. phaseolina. Interactions between M. phaseolina and nematodes were antagonistic with regard to plant dry weights, yield, and nematode reproduction, so that combined effects were less than the sum of the effect of each pathogen alone |
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| Description: | Date Completed 14.07.2011 Date Revised 20.10.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |