Effectiveness of root-knot nematode (Meloidogyne species) resistant tomato (Solanum lycopersicum L.) and pepper (Capsicum species) cultivars in Ghana

Effectiveness of root-knot nematode (Meloidogyne species) resistant tomato (Solanum lycopersicum L.) and pepper (Capsicum species) cultivars in Ghana

2014

E10963

Nematode-resistant cultivars are useful, economical, and effective means of managing nematodes. Three root-knot nematode resistant tomato cultivars, Small Fry, Jetsetter, and Celebrity, and three root-knot nematode resistant pepper cultivars, Carolina Cayenne, Carolina Wonder, and Charleston Belle, were evaluated for their reaction to Meloidogyne incognita, M. javanica, and M. arenaria in two field experiments and a soil bioassay. The local cultivars, Power (tomato) and Ohene Sateaa (pepper), were used as susceptible checks. The bioassay used soils from the tomato-growing areas of Tono, Vea, and Pwalugu in the Upper East Region of Ghana. All resistant tomato and pepper cultivars supported low reproduction by Meloidogyne spp. and exhibited low root gall rating scores for both the field and bioassay. The soil temperature during the study period in the field ranged from 24 to 32 degrees C, temperatures that were not likely high enough for a sufficient duration to affect the temperature-sensitive nature of the resistance in tomato. Based on these results, all of the resistant tomato and pepper cultivars that were studied could be useful in managing root-knot nematodes in major tomato and pepper growing areas in Ghana.

44(2):130-136, NEMATROPICA

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