Relative Damage Functions and Reproductive Potentials of Meloidogyne arenaria and M. hapla on Peanut
The reproductive potential and damage functions for Meloidogyne hapla and M. arenaria race 1 on Virginia-type peanuts (Arachis hypogaea cv. Florigiant) were determined over 2 years in microplot experiments in North Carolina. Peanut yield suppression and damage to pods as a result of galling were gre...
| Veröffentlicht in: | Journal of nematology. - 1969. - 24(1992), 1 vom: 15. März, Seite 187-92 |
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| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1992
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| Zugriff auf das übergeordnete Werk: | Journal of nematology |
| Schlagworte: | Journal Article Arachis hypogaea Meloidogyne arenaria Meloidogyne hapla damage function nematode peanut reproductive potential root-knot nematode |
| Zusammenfassung: | The reproductive potential and damage functions for Meloidogyne hapla and M. arenaria race 1 on Virginia-type peanuts (Arachis hypogaea cv. Florigiant) were determined over 2 years in microplot experiments in North Carolina. Peanut yield suppression and damage to pods as a result of galling were greatest in response to M. arenaria (P = 0.01). Damage functions for the two species were adequately described by the quadratic models: yield (g/plot) = 398 - 17.1 (log[Pi + 1]) - 17.0(log[Pi + 1])(2); (R(2) = 0.83, P = 0.0001) for M. arenaria; and yield = 388 - 10.2(log[Pi + 1]) - 7.5(log[Pi + 1])(2), (R(2) = 0.30, P = 0.0001) for M. hapla. Both species caused galling on pods, but this was more severe in response to M. arenaria. Reproduction of M. arenaria race 1 was greater than M. hapla on peanut, which accounts in part for the more severe pod galling. Peanut was an excellent host for both M. arenaria race 1 and for M. hapla, but reproduction by M. hapla was more variable |
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| Beschreibung: | Date Completed 14.07.2011 Date Revised 20.10.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |