期刊论文

中文

上海农业学报

1000-3924

2007

23

3

42-45

10.3969/j.issn.1000-3924.2007.03.010

上海市农委科技兴农重点攻关项目[编号:农科攻字（2000）第1-13号]；

本校为第一机构

研究加强甜玉米和普通玉米2种不同类型玉米鲜食期籽粒品质变化，以明确各品质变化的动态规律。试验采用不同基因型的玉米材料，测定果穗鲜食期可溶性总糖含量、水分含量、蛋白质含量和百粒鲜重，并进行相关分析。结果表明：鲜食期籽粒发育过程中加强甜玉米可溶性总糖含量和积累速度高于普通玉米；水分的下降速度加强甜玉米比普通玉米慢；蛋白质含量加强甜玉米略低于普通玉米，蛋白质的积累与籽粒鲜重的增加过程基本一致；鲜粒重积累速度加强甜玉米低于普通玉米；授粉13d和授粉28d加强甜玉米和普通玉米蛋白质含量和鲜粒重都相近。

Changes of grain quality of two different-type corns from milk stage to early dough stage were studied in order to clarify a dynamic law of the quality. A sweet corn containing the se gene and a common corn were used as materials, their total soluble sugar （TSS） contents, moisture contents, protein contents and weights of 100 fresh kernels were investigated, and the correlations between both corns were analyzed. The results showed that the TSS content of the sweet corn was higher than that of the common corn from milk stage to early dough sta...