6PAPAKOSTA D K,GNGIANAS A A.Nitrogen and dry matter accumulation,remobilization and losses for Mediterranean wheat during grain filling[J].Agronomy Journal,1991,83:864-870.
7DESAI R M,BHATIA C R.Nitrogen uptake and nitrogen harvest index in durum wheat cultivars varying in their grain protein concentration[J].J Euphytica,1978,27:561-566.
8COX M C,QUALSET C O,RAINS D W.Genetic variation for nitrogen assimilation and translocation in wheat.Ⅲ.Nitrogen translocation in relation to grain yield and protein[J].Crop Science,1986,26:737-740.
