大麥의 出穗期에 關한 硏究 第1報. 보리의 簡易播性檢定方法

Studies on Heading Date of Barley Ⅰ. Simple Testing Procedures on Growth Habit of Barley

In order to develop simple testing procedures of barley growth habit which can be practised in any place and at any time, three methods which have been used in the past were evaluated utilizing 80 varieties including the 14 standard test varieties for growth habit. After evaluating their advantages and disadvantages of each method, the simple testing procedures are proposed. In advance large population of barley varieties could be classified into two groups of spring and winter growth habit and at the same time the spring habit group into I to III degree as grown under the continuous illumination at the high temperature without any previous treatment. The remaining winter habit group could be classified into from Ⅳ to Ⅵ degree as grown under the continuous illumination at the high temperature after the low temperature treatment for three weeks.