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国家自然科学基金(31071372)

作品数:4 被引量:23H指数:3
相关作者:程博马霓张春雷李俊袁金展更多>>
相关机构:中国农业科学院油料作物研究所湖南农业大学更多>>
发文基金:国家自然科学基金国家现代农业产业技术体系建设项目公益性行业(农业)科研专项更多>>
相关领域:农业科学更多>>

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Effects of Nitrogen Fertilization on the Growth and N Uptake of Late-sowing Winter Oilseed Rape (Brassica napus L.)被引量:1
2012年
[Objective] The aim of this work was to analyze the N fertilization on the vegetative growth and N uptake of different winter rapeseed varieties at wintering stage. [Method] In two consecutive years (2009-2011), two winter rapeseed varieties (B. napus L.), an early maturity variety Zhongyou 116 (ZY116) and a middle-late application maturity variety Zhongyouza 12 (ZYZ12) were employed. Field experiments with different N levels (0, 90, 180, 270, 360 kg N/hm 2 ) were designed. At the wintering stage, the dry matter weight, the nitrogen content and concentration of plants, leaf nitrate reductase activity (NRA) and seed yields were investigated. [Result] The shoot dry matter of ZY116 increased rapidly when N rate ranged from 0 to 180 kg/hm 2 , and it raised slightly when N rate ranged from 180 to 360 kg/hm 2 . The shoot dry matter of ZYZ12 were changed in a single peak curve; the peak of shoot dry matter appeared at 270 kg N/hm 2 . The N concentration and N content in shoot and root increased rapidly when the N rate changed from 90 to 180 kg/hm 2 . Moreover, the N concentration and N content root of in ZYZ12 were much higher than that of ZY116. Present study revealed that the changed trend of leaf nitrate reductase activities (NRA) were significantly increased at the N rate of 180 kg/hm 2 in ZY116 and ZYZ12 compared with the N rate of 90 kg/hm 2 in two years. [Conclusion] Optimal nitrogen application significantly increased the dry weights and N uptake at wintering stage as well as increasing the yield of winter oilseed rape.
程博晁赢马霓张春雷李光明
不同熟期油菜碳氮代谢特征初步研究被引量:5
2015年
为探索早熟油菜碳氮代谢机理,以早熟油菜中油116(ZY116)、中早熟油菜L01和中晚熟油菜品种浙双8号(ZS8)为材料,研究开花后蔗糖磷酸合成酶(SPS)、蔗糖合成酶(SS)、谷氨酸合成酶(GOGAT)和谷氨酰胺合成酶(GS)等碳氮代谢关键酶及各生育时期全氮和可溶性糖含量的变化特征。研究结果表明,早熟油菜初花期叶片的GS活性低于中晚熟品种,SPS活性高于中晚熟品种,在角果形成初期籽粒的GOGAT活性高于中晚熟品种,角果成熟后期SS活性低于中晚熟品种。油菜蕾薹期C/N达到最高值,然后逐渐下降。而不同油菜品种的开花前C/N最高值不同,早熟油菜C/N最高值低于中晚熟油菜。
袁金展程博马霓张春雷李明李俊刘丽欣张利艳汪坤乾苏斌
关键词:早熟油菜蔗糖磷酸合成酶蔗糖合成酶谷氨酸合成酶谷氨酰胺合成酶
Mechanical Harvesting Effects on Seed Yield Loss,Quality Traits and Profitability of Winter Oilseed Rape (Brassica napus L.)被引量:13
2012年
China is one of the most important rapeseed producing countries in the world. Effective mechanical harvesting time for decreasing harvesting loss of winter oilseed rape has been becoming a critical factor. An elite cultivar Zhongshuang 11 (Brassica napus L.) was employed in two rounds of field experiments from 2009 to 2011. Seeds were sown with machine, three combine harvesting times namely combine harvesting A, B, and C (CHA, CHB, and CHC) were designed and manual harvesting (MH) as control was performed at maturity. The harvesting treatments were determined according to color of pod and seed in the field. Seed yield loss and quality in different treatments were evaluated. Results showed that both seed yields and harvesting losses in 2009-2010 were higher than that in 2010-2011, whereas seed oil contents in 2010-2011 were higher than that in 2009-2010. The highest yield appeared in CHB, which was significantly higher than that in MH. Furthermore, harvesting loss in CHB were 50% that in MH. Seed oil content and chlorophyll exhibited no obvious difference between CHB and MH. Economic profit analysis demonstrated that mechanical sowing/combine harvesting (MS/CH) showed an input/output ratio of 1:1.6, and it was 1:1.2 in mechanical sowing/manual harvesting (MS/MH). Labor-cost accounted for more than 70% of the total cost in MS/MH, which led to low profitability to a great extent. Our results suggested that CHB was the optimum harvesting time for winter oilseed rape along the Yangtze River.
MA NiZHANG Chun-leiLI JunZHANG Ming-haiCHENG Yu-guiLI Guang-mingZHANG Shu-jie
早熟油菜氮素分配特征研究被引量:4
2014年
通过15N标记方法研究氮素的吸收、分配、再分配与油菜早熟的内在关系。研究结果表明,早熟油菜品种中油116(ZY116)生育期比中晚熟油菜品种中双11号(ZS11)短9d,在营养生长期和生殖生长期分别短5d和4d。早熟品种ZY116在全生育期吸收的氮素比中晚熟品种ZS11更多的向籽粒中转移,而中晚熟品种ZS11则是花期吸收的氮素向角果皮中转移的更多,角果期氮素从角果皮转移到籽粒的更少,均达显著水平。早熟品种ZY116在营养生长阶段吸收的氮素在后期的分配速度明显快于ZS11,如ZY116苗期吸收的氮素从花期生长到角果期时再分配速度为3.22mg/d,从角果期生长到收获期时再分配速度为3.71mg/d,而ZS11分别为2.48mg/d和3.10mg/d。
袁金展程博马霓张春雷李俊李光明
关键词:早熟油菜生育期氮素分配
不同熟期油菜品种碳氮代谢关键酶活性研究
我国南方双季稻区油菜与水稻季节矛盾突出,发展早熟油菜生产是扩大油菜种植面积、提高产量的重要措施。目前对早熟油菜品种的栽培生理理论研究还很缺乏。本研究以特早熟油菜品种中油116和中晚熟品种中双11号为试验材料,采用盆栽方法...
程博张春雷吴永成马霓
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