大麥의 出穗期에關한硏究 第Ⅱ報, 우리나라 大麥 在來品種의 出穗期와 內的要因과의 關係

Studies on Heading Date of Barley Ⅱ. Relations Between Heading Date of Korean Barley Land-races Under Field Condition and the Influence of Internal Factors

217 Korean barley land-races were cultivated by fall sowing in Kurashiki, Japan in order to investigate their heading dates and to find out internal factors controlling heading date. Most of the land-races were mid-maturing, similar to the maturity of Hangmi. A few of them were very late or very early maturing. In their growth habit, most of the spring habit races belonged to the I degree and most of the winter habit races belonged to the IV degree but very few were classifield as the II or VI degree. The most influencial of the internal factors to heading date under field condition was photoperiod. The degree of spring habit and earliness in narrow sense did not have much influence.