6[1]Gerg J C,Daren D R,David C B.Plant density effects on tropical corn forage mass,morphology,and plant populations[J].J.Animal Sci,1970,29:512.
7Schmidt D H, Tracy W F. Effects of starchy sugary-2 and sugary sugary-2 endosperm on pericarp thickness in sweet and waxy corn[J]. Hort Science, 1998, 23(5): 885-886.
8Bailey D M, Bailey R M. The relation of the pericarp to tenderness in sweet corn [J ]. Proc. Amer. Soc. hort. Sci., 1938, 36: 555-559.
9Gacssar W G, Hixon R M, Haber E S. The quantity of pericarp in sevenal hybrid and inbred strains of sweet corn[J]. lowa State Coll. J. Sci.,1940, 14: 379-383.
