油菜茎秆特性与抗倒性及产量的关联研究  

The Correlation between the Growth Characteristics of Rapeseed Stalk and Its Yield and the Lodging Resistance

作　　者：孙盈盈[1] 刘婷婷[1] 杨海燕[1] 左青松[1] 周广生[1] 吴江生[1] 

机构地区：[1]华中农业大学植物科学技术学院,武汉430070

出　　处：《湖北农业科学》2014年第20期4796-4801,共6页Hubei Agricultural Sciences

基　　金：国家科技支撑项目(2010BAD01B09);油菜现代产业体系项目(NYCYTC-00510)

摘　　要：倒伏是影响油菜(Brassica napus L.)高产、稳产、优质的限制因素之一。油菜茎秆生长发育状况严重影响其倒伏程度和油菜的最终产量。油菜倒伏程度与茎秆特性密切相关,不同油菜品种因栽培措施的差异引起群体结构差异,影响植株茎秆与生殖器官间碳水化合物的积累与运转及茎秆结构形态的建成,从而进一步影响茎秆机械强度等抗倒伏关键指标及最终的子粒产量。油菜苗期良好的群体生长状况是植株各器官间碳水化合物的积累与运转协调及后期子粒产量及较强茎秆抗倒性形成的基础。对油菜群体及个体茎秆发育状况对抗倒性及菜子产量的影响机理进行了研究,旨在为油菜抗倒伏及高产栽培技术的进一步研究提供参考。Rapeseed lodging has become one factor limiting the high-yield,the stable production and the good quality of the rapeseed.The condition of stem growth strongly affects the final yield and the lodging degree of the rapeseed.The lodging degree of the rapeseed was closely correlated with the growth and development of the stem,because of different varieties of rapeseed or differences cultivation measures in population structure causing differences in population structure affecting the accumulation and operation of the carbohydrate between the plant stems,reproductive organs,and the completion of the stem structure and morphology,thus further affecting the stalk lodging key indicators including mechanical strength and final grain yield.Good conditions of population growth in the stage of crop seedling are the basis of carbohydrate accumulation and coordinated operation and post-stem grain yield and strong lodging resistance of plant organs,but few studies were focused on mechanism of the stage of crop seedling and individual characteristics influencing lodging resistance and rapeseed production.The mechanisms of the stage of crop seedling and individual characteristics influencing lodging resistance and rapeseed production were studied.

关 键 词：油菜(Brassica NAPUS L.) 茎秆发育 抗倒伏 高产 

分 类 号：S565.4[农业科学—作物学]