4 Van Sanford D A. Variation in kernel growth characters among soft red winterwheats[J]. Crop Sci., 1985, 25: 626~630.
5 Ficher R A,Rislambers D H. Effect of environment and cultivar on sourcelimitation to grain weight in wheat[J]. Aust. J. Agric. Res., 1978, 29: 443~458.