THE INFLUENCE OF CLIMATIC CONDITIONS AND AGE OF PLANT AT TRANSPLANTING ON BOLTING AND YIELD OF CHICORY (CICHORIUM INTYBUS L.) CV. ROSSO DI CHIOGGIA GROWN FOR EARLY PRODUCTION
Intensity of bolting was influenced by the duration of the plant in low temperatures, and by the actual degree of temperature: in fact, delaying the moment of transplanting caused a strong reduction in bolting, and the more the environmental conditions increased the temperature, the less the occurrence and intensity of bolting. Favourable temperature conditions also increased the production and the quality of yield, and induced earliness.
Seedlings transplanted at 35 days proved to be more sensitive to exposure to low temperatures, with respect to those transplanted at 25 days, showing a greater tendency to bolting.