Characteristics of the extremely early rye (Secale cereal L．) which selected in semi-highland

Abstract

Tests to evaluate the drying rate after harvesting and lodging ratio using four breeding lines and fourteen commercial cultivars of rye were carried out． The four breeding lines were selected based on early maturity and high yield since 2005 derived from commercial cultivars at Shinshu University． From the results of the evaluation tests ，‘SUR-10’and ‘SUR-12’showed markedly early maturity， with a heading date in late April． Lodging was not observed because of a short stem and they were harvested before an increase in lodging． However， the drying rates of ‘SUR-10’and ‘SUR-12’ were slower than those of other cultivars because of the ratio of stems that are hollow and easy to dry was low due to the short stem．