Abstract
It has widely been recognized that lucerne is the most suitable crop for the preparation of leaf protein concentrate (LPC) in temperate region. But in the southwest part of Japan as the Shikoku District, Italian ryegrass grows vigorously in autumn and spring seasons with high protein contents in young leaves. So, it was expected that ryegrass might be rather superior to lucerne as the material crop for LPC production. To prove the above supposition, LPC yield from lucerne was compared with that of Italian ryegrass from October, 1983 to June, 1985, where lucerne was successively harvested from that sown in October, 1983, while ryegrass was sown again in October, 1984.
