Effects of light intensity and nitrogen concentration on flowering of Zoysia matrella cv. Koraishiba under long day condition

Abstract

Aseptic culture of upright stems of Z, matrella cv. Koraishiba in White's cultural solutions under continuous illumination showed that floral buds were initiated in conditions of low intensity light and low nitrogen concentration. Vegetative growth was correlated with nitrogen concentration rather than light intensity. We considered that the suppressing of vegetative growth due to low nitrogen concentration and some accumulation of carbohydrate conducted to floral buds initiation.