FLOWER FORMATION OF CHINESE CABBAGE .2. ANTIVERNALIZATION AND SHORT-DAY TREATMENT

The influence of high temperature (anti-vernalization) and short-day treatment during the raising of transplants on the bolting of Chinese cabbage having early planting-dates was tested. A temperature rise from 18.degree. to 26.degree. C resulted in a delay in bolting, but only caused a slight increase in leaf number. Chinese cabbage shows anti-vernalization effects. The raising of transplants below 20.degree. C and with short-day treatment for energy saving cannot be recommended, since the effect of the short-day treatment is too small.