Fruit Traits associated with Resistance to Fruit Pests of Hot Pepper
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Date
2021-07-03
Journal Title
Journal ISSN
Volume Title
Publisher
MUJAES
Abstract
Thirty-seven local and fourteen exotic hot pepper (Capsicum spp.) genotypes were
screened under natural field conditions for resistance to two quarantine fruit pests; the
fruit fly (Diptera: Tephritidae) and the false coddling moth (Lepidoptera: Tortricidae) at
Makerere University Research Institute Kabanyolo for two seasons. The genotypes
were grown in a randomised complete block design with three replications. Data on
pest occurrence and damage; and fruit traits (fruit weight, length, width, flesh
penetrability, and fruit wall thickness) were subjected to analysis of variance. The 51
genotypes showed variation in pest infestation and fruit traits. Five local genotypes
(UG-WE02-1014, UG-WE02-0711, UG-EA06-0515 and UG-WE02-1608) and one
exotic (CAP0408-12) showed resistance to fruit fly infestation. Fruit fly infestation
correlated highly with fruit weight (r=0.59, p<0.001) and width (r=0.63, p<.001), among
others. Similarly, FCM infestation positively correlated to fruit weight (r=0.50, p<0.001)
and width (r=0.50, p<0.001). The identified hot pepper genotypes with resistance to
fruit fly and FCM can be used in hot pepper improvement programs
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Citation
Ssekkadde, P., Ribeiro, C. D. C., Ochwo-Ssemakula, M. N., Tukamuhabwa, P., & Karungi, J. (2021). Fruit traits associated with resistance to fruit pests of hot pepper. MUJAES, 10, 22-46.