Effect of Year-round Warmer Condition on the Blooming of Camellia hiemalis

Abstract

The blooming period and morphology of Camellia hiemalis NAKAI cv. Shishigashira were investigated grown under several controlled temperature conditions of outdoor temperatures altered by+4.5°C, +3.0°C, +1.5°C, 0.0°C and-1.5°C. The results in the 2nd year showed that the blooming period were earlier under low temperature conditions. There were a greater number of flowers with a greater number of petals and stamen under higher temperature conditions. There seemed that the blooming period and morphology of the flowers of Camellia hiemalis NAKAI cv. Shishigashira would change under warmer conditions.