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本研究对长江下游地区各有关单位新育成的八个甘蓝型单、双低油菜品种(系)的产量能力、适应性、稳产性和产量与产量构成因素间的遗传相关系数进行了分析。结果表明,低芥酸、低硫代葡萄糖甙新品系鉴7、低芥酸品系8701和4039的产量能力与常规品种宁油7号相等或相近,产量差异不显著,并具有广泛的适应性和稳产性。提出在长江下游地区,要提高单、双低油菜品种(系)的产量,应在保持现有单株角果数的水平上,首先考虑提高千粒重,其次是提高每角果粒数。
In this study, we analyzed the genetic correlation coefficients of yield, adaptability, yield stability and yield and yield components of eight new single and double canola cultivars (lines) bred newly by all the relevant units in the lower reaches of the Yangtze River. The results showed that the yield of low erucic acid, low glucosinolates Xinjian 7 and low erucic acid lines 8701 and 4039 were equal or similar to that of the conventional variety Ningyou 7, the yield was not significantly different, and had a wide range of adaptability and Stability of production. In the lower reaches of the Yangtze River, to increase the yield of single and double low rapeseed varieties, we should first consider increasing the 1000-grain weight while maintaining the existing number of pods per plant, followed by increasing the number of grains per horn.