“…luteus green fodder industry, at least from the late infections which generally occur with normal spring sowings (Hackbarth, 1959;Savvichev, 1979). In L. luteus, the most important effect of BYMV is on grain yield (Decker, 1950;Troll, 1952Troll, , 1957Quantz, 1952b;Corbett, 1955Corbett, , 1958Kazimierski, 1961;Van Steveninck, 1957;Hackbarth, 1959;Savvichev, 1979). In L. luteus, the most important effect of BYMV is on grain yield (Decker, 1950;Troll, 1952Troll, , 1957Quantz, 1952b;Corbett, 1955Corbett, , 1958Kazimierski, 1961;Van Steveninck, 1957;Hackbarth, 1959;Savvichev, 1979).…”