Effect ofZinnia elegans as a mix-crop along with tomato againstMeloidogyne incognita andRotylenchulus reniformis |
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| Authors: | M. Y. Yassin Dr. A. E. Ismail |
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| Affiliation: | (1) Fac. of Agric., Cairo University Dept. of Zool, Dokki, Cairo;(2) Plant Pathol. Dept. National Res. Cent., Dokki, Cairo, Egypt |
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| Abstract: | Effect of nematicidal potential ofZinnia elegans Jacq (1, 2, 3 & 4 plants per pot) as a mix-crop along with tomato againstMeloidogyne incognita andRotylenchulus reniformis was studied under a greenhouse conditions. The nematode final population of both nematodes and their rate of build up as well as the root gall index were significantly affected by the number of zinnia plants when grown with tomato together. There was a negative correlation between the number of zinnia seedlings and the final population of both nematodes. The lowest nematode final population and rate of build up were determined at the highest number of zinnia plants (4 plants per pot). The highest number of root gall index was found on roots of tomato grown alone (4), while, the lowest one was found on roots of tomato (0.7) grown with four plants of zinnia. This type of control is considered inexpensive and pollution-free.
Zusammenfassung Zur Wirkung vonZinnia-Pflanzen in Mischung mit Tomate gegen die NematodenMeloidogyne incognita undRotylenchulus reniformis.Bei Zugabe von 1, 2, 3 oder 4 Pflanzen vonZinnia elegans pro Topf zu Tomate unter Gewächshausbedingungen wurden die Enddichte der Wurzel-NematodenMeloidogyne incognita undRotylenchulus reniformis sowie die Reproduktionsrate und der Wurzelgallenindex signifikant beeinflußt, und zwar mit steigender Zahl an Zinnia-Pflanzen vermindert. Der höchste Wurzelgallen-Index (4,0) wurde bei allein wachsender Tomate pro Topf festgestellt, der niedrigste Index (0,7) bei Anwesenheit von 4 Zinnien. Diese Form der Wurzelnematodenbekämpfung ist billig und frei von Umweltbelastungen.
With 2 tables |
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