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Vol.1 , No. 1, Publication Date: Jul. 7, 2014, Page: 7-12
 Chitwood on Cowpea Varieties&description=The experiment was conducted at the Teaching and Research Farm of the Faculty of Agriculture, University of Ilorin, Nigeria, to evaluate the effect of a bio-agent; Trichoderma harzianum on root knot nematode of nine varieties (Sampea 9, Sampea 10, Sampea 11, IT16K–91–1–1, IT07K – 187 – 55, IT06K – 123 – 1, 17845 – 2246 – 42, 1790K – 277 -2 and 1788D – 867 – 11) of cowpea. The experimental design was a factorial type fitted into a completely randomized block design. Initial soil nematode population was assayed. Growth parameters on plant height and number of leaves were collected from two weeks to eight weeks after planting on a weekly basis. Data on yield (number of pods and pod weights) were recorded. At harvest final nematode population were counted. All data were subjected to analysis of variance using Duncan’s Multiple Range Test DMRT. Results showed that treated plants performed significantly (P≥ 0.5) higher in all the growth and yield parameters measured than their untreated counterparts. Conversely, soil nematode populations were significantly higher in the untreated plots than in the treated ones. Varietal differences played important role in the growth and yield response of plants to treatment. Though all the cowpea varieties were susceptible at varied levels to root-knot nematode infection, Trichoderma treated plants were resistant while the control plants were susceptible and highly susceptible in the first and second year respectively.&picture=http://www.aascit.org/aascit/decorators/img/journal/923.jpg)
| [1] | Izuogu N. B., Department of Crop Protection, Faculty of Agriculture University of Ilorin. |
| [2] | Osuwa O. V., Department of Crop Protection, Faculty of Agriculture University of Ilorin. |
| [3] | Fabiyi A. O., Department of Crop Protection, Faculty of Agriculture University of Ilorin. |
| [4] | Olabiyi T. I., Department of Crop Protection, Faculty of Agriculture University of Ilorin. |
| [5] | Abolusoro S. A., Department of Crop Protection, Faculty of Agriculture University of Ilorin. |
The experiment was conducted at the Teaching and Research Farm of the Faculty of Agriculture, University of Ilorin, Nigeria, to evaluate the effect of a bio-agent; Trichoderma harzianum on root knot nematode of nine varieties (Sampea 9, Sampea 10, Sampea 11, IT16K–91–1–1, IT07K – 187 – 55, IT06K – 123 – 1, 17845 – 2246 – 42, 1790K – 277 -2 and 1788D – 867 – 11) of cowpea. The experimental design was a factorial type fitted into a completely randomized block design. Initial soil nematode population was assayed. Growth parameters on plant height and number of leaves were collected from two weeks to eight weeks after planting on a weekly basis. Data on yield (number of pods and pod weights) were recorded. At harvest final nematode population were counted. All data were subjected to analysis of variance using Duncan’s Multiple Range Test DMRT. Results showed that treated plants performed significantly (P≥ 0.5) higher in all the growth and yield parameters measured than their untreated counterparts. Conversely, soil nematode populations were significantly higher in the untreated plots than in the treated ones. Varietal differences played important role in the growth and yield response of plants to treatment. Though all the cowpea varieties were susceptible at varied levels to root-knot nematode infection, Trichoderma treated plants were resistant while the control plants were susceptible and highly susceptible in the first and second year respectively.
Keywords
Trichoderma Harzanium T22, Meloidogyne Incognita, Meloidogyne Arenaria,Meloidogyne Hapla, Root-Knot
Reference
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