期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2006

32

4

352-356

10.3321/j.issn:1007-1032.2006.04.002

(2004BA520A01):科技部科技攻关项目 (00A002):教育部科学技术研究重点项目 (02B009):湖南省教育厅青年基金

本校为第一机构

采用田间小区试验,研究了不同浓度新型玉米生长调节剂对玉米氮代谢的影响.结果表明,不同浓度玉米生长调节剂对灌浆期玉米功能叶、茎秆中氮素的转运,功能叶硝酸还原酶与蛋白水解酶活性,功能叶和籽粒的谷氨酰胺合成酶与转化酶活性均有明显的促进作用,显著增加玉米产量、籽粒蛋白质含量及籽粒蛋白质产量.在调节剂的3个浓度中,以PGRC1较合理.PGRC1处理玉米籽粒的蛋白氮含量比对照提高0.83 g/kg,籽粒产量比对照增加13.18%,籽粒蛋白质产量比对照增加19.59%.

Maize is a low protein crop. Applying plant growth regulator （PGR） that regulate carbon and nitrogen metabolism of maize to improve grain protein content and yield must be an important approach to increase protein resource. To compare its effects on the photosynthesis characteristics and nitrogen mechanism of maize plant by plant growth regulation（PGRC） with 3 different concentrations, the field experiment was conducted. Its results showed as follows： all the tested PGRCs had significantly positive effects on the following the increasing o...