INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA
Interaction of Meloidogyne incognita and Fusarium oxysporum f. sp. tracheiphilum race 1 was investigated in the screenhouse on cowpea cultivars Ife Brown and TVu 990 which are respectively susceptible and resistant to both pathogens. Ife Brown was infected earlier and more severely than TVu 990 by b...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Online |
| Sprog: | engelsk |
| Udgivet: |
The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.
2020
|
| Fag: | |
| Online adgang: | https://ija.oauife.edu.ng/index.php/ija/article/view/232 |
| Tags: |
Tilføj Tag
Ingen Tags, Vær først til at tagge denne postø!
|
| _version_ | 1810820056269979648 |
|---|---|
| author | OKOLE, B. N. AMOSU, J. O. |
| author_facet | OKOLE, B. N. AMOSU, J. O. |
| author_sort | OKOLE, B. N. |
| collection | OJS |
| description | Interaction of Meloidogyne incognita and Fusarium oxysporum f. sp. tracheiphilum race 1 was investigated in the screenhouse on cowpea cultivars Ife Brown and TVu 990 which are respectively susceptible and resistant to both pathogens. Ife Brown was infected earlier and more severely than TVu 990 by both pathogens acting either singly or in various combinations and at all concentrations tested.
When both pathogens were present together. there were decreases in fresh root and shoot weights of both TVu 990 and Ifc Brown cowpea cultivars as the inocula increased. Generally, increases in fungal concentrations resulted in decrease in galling especially in the Ife Brown cowpea cultivar.
Wilting was more pronounced on Ife Brown than on TVu 990. Infection occurred on TVu 990 only at very high nematode population and fungal concentrations. TVu 990 plants did not show any external signs of wilting 42 days after inoculation. But it took just 16 days for the Ife Brown cowpea cultivar to wilt at the highest combined inocula levels. Increasing the nematode population significantly increased the possibility of Fusarium colonizing and producing symptoms on the resistant cowpea cultivar. |
| format | Online |
| id | oai:ojs2.ija.oauife.edu.ng:article-232 |
| institution | My University |
| language | eng |
| publishDate | 2020 |
| publisher | The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. |
| record_format | ojs |
| spelling | oai:ojs2.ija.oauife.edu.ng:article-2322020-10-05T15:48:35Z INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA OKOLE, B. N. AMOSU, J. O. concentration, cowpea, cultivars, Fusarium, Meloidogyne, resistance Interaction of Meloidogyne incognita and Fusarium oxysporum f. sp. tracheiphilum race 1 was investigated in the screenhouse on cowpea cultivars Ife Brown and TVu 990 which are respectively susceptible and resistant to both pathogens. Ife Brown was infected earlier and more severely than TVu 990 by both pathogens acting either singly or in various combinations and at all concentrations tested. When both pathogens were present together. there were decreases in fresh root and shoot weights of both TVu 990 and Ifc Brown cowpea cultivars as the inocula increased. Generally, increases in fungal concentrations resulted in decrease in galling especially in the Ife Brown cowpea cultivar. Wilting was more pronounced on Ife Brown than on TVu 990. Infection occurred on TVu 990 only at very high nematode population and fungal concentrations. TVu 990 plants did not show any external signs of wilting 42 days after inoculation. But it took just 16 days for the Ife Brown cowpea cultivar to wilt at the highest combined inocula levels. Increasing the nematode population significantly increased the possibility of Fusarium colonizing and producing symptoms on the resistant cowpea cultivar. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. 2020-10-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://ija.oauife.edu.ng/index.php/ija/article/view/232 Ife Journal of Agriculture; Vol. 12 No. 1 (1990): Ife Journal of Agriculture; 69-78 0331-6351 eng https://ija.oauife.edu.ng/index.php/ija/article/view/232/143 Copyright (c) 2020 Ife Journal of Agriculture |
| spellingShingle | concentration, cowpea, cultivars, Fusarium, Meloidogyne, resistance OKOLE, B. N. AMOSU, J. O. INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA |
| title | INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA |
| title_full | INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA |
| title_fullStr | INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA |
| title_full_unstemmed | INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA |
| title_short | INTERACTION OF DIFFERENT POPULATION LEVELS OF MELOIDOGYNE INCOGNITA AND FUSARIUM OXYSPORUM F. SP. TRACHEIPHILUM RACE 1 ON COWPEA |
| title_sort | interaction of different population levels of meloidogyne incognita and fusarium oxysporum f sp tracheiphilum race 1 on cowpea |
| topic | concentration, cowpea, cultivars, Fusarium, Meloidogyne, resistance |
| topic_facet | concentration, cowpea, cultivars, Fusarium, Meloidogyne, resistance |
| url | https://ija.oauife.edu.ng/index.php/ija/article/view/232 |
| work_keys_str_mv | AT okolebn interactionofdifferentpopulationlevelsofmeloidogyneincognitaandfusariumoxysporumfsptracheiphilumrace1oncowpea AT amosujo interactionofdifferentpopulationlevelsofmeloidogyneincognitaandfusariumoxysporumfsptracheiphilumrace1oncowpea |