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利用近期育成的若干高产品种（系），研究前期营养生长基础、花期前后株型演变及成熟期冠层结构差异。干物质积累量宁杂１号始终占优势，９２—７—５８前期弱后期强，宁油１０号和荣选长势一直较弱。宁杂１号干物质的分配较为合理，各生育期生长中心的转移较快，宁油１０号营养物质利用率高。总光合面积指数，宁杂１号亦占优势，其最大值出现在花后期。成熟期宁杂１号结角层分布偏上，９２—７—５８偏下，而宁油１０号较分散。宁杂１号属于多枝多角、小粒、高产的优势型品种，宁油１０号属于少枝少角、大粒、多粒、高产的经济型品种，油菜育种以选育优势型和经济型品种为宜。
Using the recent breeding of a number of high-yielding varieties (lines), to study the basis of pre-vegetative growth, plant type before and after flowering and mature canopy structure differences. Dry matter accumulation Ning miscellaneous 1 has always been dominant, 92-7-58 pre-weak late strong, Ning You 10 and the election has been weaker growth. Ning miscellaneous 1 dry matter distribution is more reasonable, the growth of the growth of each growth stage of the transfer faster Ningyou 10 high nutrient utilization. Total photosynthetic area index, Ning Za 1 also dominated, the maximum appeared in late flowering. Nostalgia on the 1st knotty angle distribution on the top, 92-7-58 lower, while Ningyou 10 more dispersed. Ningza 1 belongs to the dominant species with many branches and polygons, small grains and high yield. Ningyou 10 belongs to economic varieties with fewer branches, bigger grains, more grain and more high yield, and rapeseed breeding with breeding dominant and economic varieties as should.