Fig. 6From: Extent of spike shedding and stem wilting of pepper (Piper nigrum L.) in Morogoro District, TanzaniaResults of a survey of villages in Morogoro district, Tanzania, where pepper farms were surveyed for symptoms of spike shedding and stem wilting. a Responses of interviewed farmers on the pepper production constraints in Morogoro district. b Regression analysis between altitude and the incidence of spike shedding and stem wiltingBack to article page