抄録
Two new varieties, "Karafuto No.2 "and "Karafuto No.3" of the hard spring wheat were bred at the Central Experiment Station in South Saghalien. "Karafuto No.2 " was produced from a varietal cross, in 1935, of Italian Spring × Garnet Ottawa 452 by S.SHINDO and "Karafuto No.3"from a varietal cross, in 1936, of Italian Spring x Reward Ottawa 928 by the same breeder. "Karafuto No.2"averaged to be about 20 percent more productive than the Garnet Variety in South Saghalien and proved to be best for cultivation its north eastern region. "Karafuto No.3"equalled in its jield to the former and was characterized by its especially large grains (38.2g per 1, 000 percent grains). This variety matured, however, about 3 days later on the average than "Karafuto No.2"and was recommended to cultivate in the warmer south western region of South Saghalien.
