轻简化栽培对甘蓝型油菜品质、农艺性状的影响

[目的]研究轻简化栽培对甘蓝型油菜品质和农艺性状的影响。[方法]对秦优7号在合肥国家区试点、长江下游及中油杂2号在长江中游于正常密度和高密度（正常密度的1.0～1.5倍）下品质、农艺性状进行了比较,并对农艺性状与产量之间的相关性进行了分析。[结果]2008～2009年中油杂2号在长江中游高密度种植时产量比正常密度种植略有减产,而秦优7号在长江下游高密度种植时增产7.31%。[结论]甘蓝型油菜高密度种植对产量影响最大的因子是主花序结角数。主花序结角数可以作为筛选适宜高密度种植高产品种的目标性状。

Effects of Simplified Cultivation on Quality and Agronomic Traits of Brassica napus L.

[Objective] The study aimed to investigate the effects of simplified cultivation on quality and agronomic traits of Brassica napus L.[Method]The quality and agronomic traits in normal density and high density(normal density 1.0-1.5 times) planting condition was compared,and the correlation between agronomic traits and yield traits of Zhongyouza No.2 in the middle Yangtze river and the Qinyou No.7 in national trial plot and the lower Yangtze river was analyzed.[Result] In 2009,the yield of Zhongyouza No.2 in the middle Yangtze river in high-density planting was reduced compared with normal density,but the yield of Qinyou No.7 increased 7.31% compared with normal planting in the lower Yangtze river.[Conclusion] The most marked effect on yield in high dendity-planting was the siliquae of main inflorescence which could be regarded as objective trait in the breeding of rapeseed for high density planting.