Abstract
The experiments were conducted to investigate the relation among a sowing time of barlay (Hordeum vulgare L. cv. Minorimugi), its growth before a snow cover, and its snow endurance There was a close relation between the top dry matter weight just before the snow cover and the snow endurance of barley, which was measured by a ratio of alive stem numbers after/before the snow cover. When the top dry matter weight just before the snow cover was more than 0.5g, which were sowed before October 15, more than 30% of stem survived against 108 days of the snow cover. When it was less than 0.1g, which were sowed after Octorber 30, they could not survive. When it was between 0.08g and 0.57g, being sowed between October 15 and 30. the later sowing time, the lower snow endurance. And its snow endurance was highly and positively correlated with the top dry matter weight just before the snow cover, The top dry matter content just before the snow cover affected its snow endurance bo. The top dressing of nitrogen decreased the top dry matter content and its snow endurance. The lower top dry matter content, the lower snow endurance.
