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通过对1983~2012年安徽省审定的70份油菜品种的品质和主要经济性状演变规律及其与产量的相关性进行研究,发现育成年代与生育期、一次有效分枝、单株角果数及产量间具有极显著线性回归关系,与株高、千粒重、硫苷和芥酸具有显著线性回归关系;进一步分析发现,经过30年的品种改良,产量、单株角果数、千粒重、生育期、株高和一次有效分枝数分别增加了81.22%、97.56%、11.90%、10.08%、10.03%和29.42%。而品种育成年代与每果粒数和含油量无显著线性关系,表明这些年育成品种在每角粒数与含油量方面未有明显改良。6个经济性状和产量的相关性研究表明单株角果数与一次有效分枝数、产量均表现极显著正偏相关,偏相关系数分别为0.5626和0.5190,千粒重和生育期表现显著正偏相关(0.2588)。数据分析暗示品种进一步改良有可能通过提高每果粒数和(或)含油量实现。
Based on the evolution of quality and main economic traits of 70 rapeseed cultivars from 1983 to 2012 in Anhui Province and their correlation with yield, we found that the age of rapeseed, the productive period, the number of primary branches, There was a significant linear regression relationship between the yield and the plant height, 1000-grain weight, glucosinolate and erucic acid. Further analysis showed that after 30 years of variety improvement, the yield, the number of pods per plant, the 1000-grain weight, the growth period, The plant height and number of effective branches increased by 81.22%, 97.56%, 11.90%, 10.08%, 10.03% and 29.42% respectively. However, there was no significant linear relationship between the age of cultivars and the number of per fruit and the oil content, which indicated that there was no obvious improvement in the number of grains and oil content of these cultivars. Correlation analysis of six economic traits and yield showed that the number of single pod and the number of effective branches and yield all showed extremely significant positive and negative correlations with partial correlation coefficients of 0.5626 and 0.5190 respectively. There was a significant positive and negative correlation between grain weight and growth period (0.2588). Data analysis suggests that further improvement of varieties may be achieved by increasing the number of grains and / or oil content per fruit.