期刊论文

中文

亚热带植物科学

1009-7791

2014

4

271-275

10.3969/j.issn.1009-7791.2014.04.001

31372130:国家自然科学基金 31071851:国家自然科学基金 31101596:国家自然科学基金 00509:国家油菜产业技术体系项目 2012BAD15BO4:国家科技支撑计划 12K064:湖南省高等学校创新平台开放基金

本校为第一机构

以氮高效品种27号与氮低效品种6号为试验材料,在常氮与氮胁迫两种供氮情况下,研究不同品种油菜叶片及角果、角果皮与籽粒中有机碳、产量与籽粒油分的变化及差异。结果表明,氮高效品种27号籽粒产量、收获指数、籽粒油分高于氮低效品种6号;在常氮（含KNO3 102 g·L^-1与Ca（NO3）2·4H2O 236 g·L^-1）和缺氮（含KNO3 34 g·L^-1与Ca（NO3）2·4H2O 78.67 g·L^-1）水平下,品种27号在抽薹期、花期与角果期,根和叶有机碳与干物质大于品种6号,收获期根有机碳与干物质小于品种6号。收获期缺氮时,品种27号叶干物质与有机碳较高。生殖生长期,品种27号的花、角果、籽粒有机碳与干物质积累较品种6号强,而...

In this study, a pot experiment was conducted to study the differences of organic carbon among rape leaf, silique, pod area and rapeseed, yield and rapeseed oil content in two rape cultivars [High nitrogen (N) use efficiency cultivar, No. 27; low N use efficiency cultivar, No. 6] under two N application levels for exploring the law of carbon accumulation. The results showed that No. 27 ranked higher level than No. 6 in rapeseed yield, harvest index, rapeseed oil content. The accumulation of organic carbon and dry matter in root and leaf of No. 27 ranked higher level than those of No. 6 during ...