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| Effect of Caraway, Coriander and Aniseed on the Level of Tomato Yellow Leaf Curl Virus Disease and Tomato Yield |
Wessal Y. H .A, Elameen. M. A E, Ammar M.S. Abdalla
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Abstract:
Some medicinal plants i.e. caraway, coriander and aniseed were inter - cropped with the tomato varieties (Omdurman and Peto86) to reduce the whitefly population and the consequent pathogen infection. The experiments were conducted in the field of University of Gezira, during winter and summer of 2000.
The results indicated that during both seasons, highly significant differences (p < 0.01) were found in the percentage level of TYLC infection between treatments, between the two tomato varieties and between the three sampling dates. Results also showed that the variety Omdurman was significantly exhibiting low incidences of TYLC infection within all treatments at the different dates of count throughout both growing seasons, compared to peto86.The intensity of the disease once appeared, progressively increased with the advent of the growing season.
Significantly higher yields were obtained by the variety Omdurman in the coriander and aniseed treatments (4361.660 and 4266.670 kg/ha, respectively). Although the lowest yield of both varieties were obtained from control treatment (200 kg/ha), but that was not significantly different from the yield obtained from the caraway treatment (128.6 kg/ha). Caraway appeared to be more competitive than the others.
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