Tobacco Resistance to Globodera tabacum
Two flue-cured tobacco cultivars, VA-81 and PD-4, resistant to Globodera tabacum solanacearum were tested for resistance to G. tabacum in field and greenhouse experiments. A G. tabacum-susceptible broadleaf cultivar CT86-4 was used for comparison. In a greenhouse screening procedure, VA-81 and PD-4...
| Veröffentlicht in: | Journal of nematology. - 1969. - 20(1988), Annals 2 vom: 15. Okt., Seite 77-80 |
|---|---|
| 1. Verfasser: | |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1988
|
| Zugriff auf das übergeordnete Werk: | Journal of nematology |
| Schlagworte: | Journal Article Globodera tabacum Nicotiana tabacum resistance tobacco tobacco cyst nematode |
| Zusammenfassung: | Two flue-cured tobacco cultivars, VA-81 and PD-4, resistant to Globodera tabacum solanacearum were tested for resistance to G. tabacum in field and greenhouse experiments. A G. tabacum-susceptible broadleaf cultivar CT86-4 was used for comparison. In a greenhouse screening procedure, VA-81 and PD-4 had, respectively, 1 of 24 and 0 of 24 plants with any cysts visible on the root systems. All 24 plants of CT86-4 had at least four G. tabacum cysts visible per plant. Up to 80% of juveniles emerged from cysts in response to all tobacco cultivars transplanted into pots. Subsequent reproduction was much less on VA-81 and PD-4 than on CT86-4. Staining nematodes in roots 5 weeks after inoculation indicated that fewer nematodes had developed in VA-81 and PD-4 than in CT86-4. During one growing season, population densities of G. tabacum in naturally infested field soil declined by 72-80% under VA-81 and PD-4 and increased by 144% under CT86-4 |
|---|---|
| Beschreibung: | Date Completed 14.07.2011 Date Revised 20.10.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |