Abstract
Four fertilizer treatments were applied to two PVMV susceptible pepper (Capsicum annuum) varieties (NHV1-D96 and NHV1-E96) and one PVMV tolerant variety (NHV1-G96) to determine their effects in reducing the incidence and severity of pepper veinal mottle virus disease and on yield and agronomic parameters. The treatments were: (1) no manure application, (2) poultry litter organic manure at the rate of 10 tons/ha, (3) poultry litter organic manure at the rate of 20 tons/ha, and (4) NPK (20:10:10) at the rate of 0.26 tons/ha inorganic fertilizer. Broadcasting method was used for all the fertilizer applications. The experiment was carried out both in the field using a randomized complete block design and in 5 kg sterilized soil-potted experiment in the greenhouse in complete randomized design. The treatments showed a significant effect (P < 0.01) on PVMV disease incidence and severity, plant height, leaf number, internodes distance, number of fruit per plant, and fruit yield both in the field and greenhouse plants. The interactions between the treatments were also significant (P < 0.05) for PVMV disease incidence and severity, plant height, leaf number, internodes distance, number of fruit per plant and fruit yield. Mean PVMV disease incidence and severity, plant height, leaf number, internodes distance, number of fruit per plant and fruit yield, varied significantly (P < 0.05) in all the treatments applied. The application of 10 tons/ha and 20 tons/ha poultry manure showed a significant (P < 0.01) effect in reducing the incidence and severity of PVMV disease on the three pepper varieties. The poultry manure treatments were also observed to have positively and significantly contributed (P < 0.05) to the plant height, leaf number and fruit yield of PVMV infected pepper plants in all the three pepper varieties used both in the field and in the greenhouse. The yield of pepper decreased with increasing PVMV disease incidence and severity in all the treatments. Keywords: Capsicum annuum; Pepper Veinal Mottle Virus; Poultry Organic Manure East African Journal of Sciences Vol. 1 (2) 2007: pp. 104-111
Highlights
IntroductionPepper veinal mottle virus (PVMV) (genus Potyvirus, family Potyviridae) disease has been a major constraint to pepper production, contributing to low yield and reduced fruit quality and leading to great economic loss (Cook, 1991)
Pepper veinal mottle virus (PVMV) disease has been a major constraint to pepper production, contributing to low yield and reduced fruit quality and leading to great economic loss (Cook, 1991)
Effect of Fertilizers Treatments on the Incidence and Severity of PVMV on the Varieties There was no significant difference in the two-year results collected, similar trend of results were observed
Summary
Pepper veinal mottle virus (PVMV) (genus Potyvirus, family Potyviridae) disease has been a major constraint to pepper production, contributing to low yield and reduced fruit quality and leading to great economic loss (Cook, 1991). Peppers infected by PVMV exhibit varied symptom expression depending on the severity, age of plant, time of infection and pepper variety. These symptoms may appear on the leaves, stem, flowers and fruits (Zethner, 1991). The issue of satisfactory control of this PVMV has been a major problem that has led to reduce cultivation of this crop in most part of the world and especially in Nigeria. An adequate control of the PVMV disease under field conditions has not been achieved (Zethner, 1991)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
