8Murthy B N and Rao M V.Evolving suitable index for lodging resistance in barley[J].The Indian journal of genetics and Plant Breeding,1980,40:253-261.
9Wiersma D W,Oplinger E S,Guy S O.Environment and cultivar effects on winter wheat response to ethephon plant growth regulator[J].Agron.J,1986,78:761-764.
10Zahour A,Rasmusson D C,Gallagher L W.Effect of semidwarf stature,head number,and kernel number on grain yield in barley in morocco[J].Crop Science,1987,27:161-165.
