Effects of End of Day Lighting after Night Chilling Treatment on Growth and Development of Lettuce

Abstract

to low temperature during the night from May 23 to June 6, and sequentially exposed to end of day lighting from June 7 to July 4, 2013. The stem elongation was inhibited by night chilling treatment and was inhibited by end of day lighting treatment remarkably. The capitulum formation was inhibited in the night chilling treatment. These results suggest that end of day lighting after night chilling treatment is effective in suppressing stem elongation and floral stage of lettuce plant.