期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2005

31

3

238-241

10.3321/j.issn:1007-1032.2005.03.003

国家“十五”科技攻关资助项目（2001BA501A）；

本校为第一机构

为了寻找能提高饲用稻糙米蛋白质含量的优化栽培法,采用田间小区试验和室内生化分析相结合的方法研究了6种不同栽培法对饲用稻湘早籼24号氮代谢几种关键酶活性及其糙米蛋白质含量的影响.结果表明:推荐栽培法能明显增强水稻功能叶中硝酸还原酶、谷氨酰胺合成酶、谷氨酰胺转化酶、蛋白水解酶及籽粒中谷氨酰胺合成酶、谷氨酰胺转化酶等几种氮代谢关键酶的活性,从而显著提高糙米蛋白质含量.水稻糙米的蛋白氮含量以推荐栽培法处理最高,比常规栽培法处理提高了9.8%,其次为氮高量栽培法,比常规栽培法提高了7.5%.

In order to screen optimum cultivation which may increase protein contents in brown rice,effects of six kinds of different cultivations on activities of several key enzymes of nitrogen metabolism in Xiangzaoxian24,a high protein fodder rice combination,were studied by way of field plot experiment and biochemistry analysis in lab.The results showed that recommended cultivation could obviously promote activities of nitrate reductase,glutamine synthetase,glutamine transfersase and protease in functional leaves and glutamine synthetase,glutamine transfersase in grain,eventually,protein contents in...