Fruit characteristics of high temperature period and economic analysis of summer paprika (Capsicum annuum L.) grown at different altitudes.

摘要

This study was conducted to evaluate the suitable altitude for cultivating paprika in summer. Cultivation area of paprika for summer production was 58 ha and lowland area at 0-299 m altitude occupied 29%. In high temperature period (from July to August), mean air temperature at 0-299 m altitude was higher than the suitable growth temperature of paprika. Fruit setting ratio increased with the higher altitude area whereas physiology disorder and damage by disease and insect pest increased with the lower altitude area. Fruit quality decreased with the lower altitude area. Business analysis results showed that the net profits at 300-599 m and 600-899 m altitude were higher by 16 and 10%, respectively, than those in 0-299 m altitude. Therefore, highland area above the sea level 300 m-599 m altitude was the most suitable for paprika in summer culture.