Abstract
To ascertain the phenomena of devernalization in wheat and barley, reported before by PURVIS etc. in detail with Petkus winter rye, a simple experiment was carried out in our laboratory. The treated seeds as showh in table 1 were sown in 1/50, 000 tan pot in a glass house on March 1. With careful managements during their growing periods, number of tillers per plant, number of leaves on main culm and date of heading were noted. The results were compiled in tables 2∼6. From these data we concluded that both vernalized seeds of highest winter type wheat and medium winter type barley during 3 weeks at 0°C were completely devernalized by high temperature treatment at 22°C during 3 weeks with restricted water-supply.
