8Gebeyehou G et al.Rate and durnuation of grain filling in durum cultivars. Crop Science . 1982
9Briggle L W.Heterosis in wheat: A view. Crop Science . 1963
10Borghi B.et al.Modification of the sink/source relationship in bread wheat and its influence on grain yield and grain-protein content. Journal of Agron.Crop Science . 1986