Varietal peculialities of Matthiola in the effect of low temperature on the flower formation

Abstract

1. Common stocks had been recognized to require low temperature below 15°C for 3 weeks at the stage having ten or more fully developed leaves to form flower-bud. The present studies were undertaken to ascertain whether the effect of the low temperature on flower formation differed with different cultivars of the common stocks, and to compare the growth and flowering behavior among individuals of several cultivars grown at four different seasons of the year under natural light and temperature conditions.