Abstract
Effects of air temperature and humidity in the greenhouse on the growth of the fall-cropped cucumber ‘Natsunokaori’ were investigated. In pinching and wire-training cultivation, air temperature of 30 °C and 60 % relative humidity promoted the development of fruit by suppressing growth of the 3rd and 4th lateral branches. Air temperature of 25 °C and 40 % relative humidity promoted the development of lateral branches by suppressing fruit growth. The total number of fruits were increased by air temperature of 25 °C and 40 % relative humidity. However, the percentage of marketable fruits was decreased during low temperature seasons.