| Popis: |
Forty-two pepper line seeds obtained from the surveillance locations with the desirable characteristic of high yield were screened for resistance to virus diseases under field conditions. The seedlings were prepared in an insect-tight screen house at National Horticultural Research Institute Ibadan (NIHORT) and the pepper lines were transplanted in February 2017 and repeated in February 2018. The experiment was laid out in Randomised Complete Block Design (RCBD) with three replicates. The incidence of infection was visually observed with symptoms description and the percentage incidence grouping of infection is taken in the scale of the category of I-IV. The results revealed that the viral incidences vary between 0-63.88% and severity 1-3.00. The pepper lines were categorized into resistant (R), tolerant (T), moderately susceptible (MS), and susceptible (S). The resistant Pepper lines were 40.48% (17 out of 42) which include RFK2, RFK3, RFK7, RFK8, RFK11, RFK12, RFK13 RFK15, RFK16, RMY2, RMY3, RMY5, Ojikanrodo, Ose-isi1, Orumba, Essa-south, and Toba-rodo. On the other hand, 13 of 42 (30.95%) were tolerant, 19.05 % (8 out of 42) of the lines were moderately susceptible and 4 of 42(9.52%) highly susceptible. The leaf samples collected from the infected pepper plant were subjected to Double antibody sandwich ELISA and CMV incidence was 88.33% cut across all the areas, PVY 50%, and mixed infection was also found CMV+PVY 33.3%. |
