![]() ![]() A regression analysis was performed to explore the relationship between altitude and the incidence of spike shedding and stem wilting. Fisher’s exact test at (α = 0.05) was used to compare the effects of production constraints and altitude. Chi square tests (α = 0.05) were used to compare differences between gender, pepper cultivars by wards and yield, spike shedding and stem wilting by pepper cultivars and plant species used to support pepper vines. Data were collected from 216 pepper farmers through a questionnaire, focus group discussions, and field observations. MethodsĪn altitudinal transect survey was conducted in Morogoro district from October to November 2018. The study was conducted to obtain baseline information on the extent of the disorders. Recently, farmers have reported a decline in crop productivity due to spike shedding and stem wilting of pepper plants. Pepper ( Piper nigrum L.) is an important spice produced by small-scale farmers in Morogoro district of Tanzania for both local and export markets.
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