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近年来,我省先后选育出一些较好的向日葵杂交组合并进入省区域试验和生产试验。其中有的组合已经通过鉴定,并在生产上推广应用(辽葵杂一号),获得十分可观的经济效益,有的组合刚刚通过鉴定正待推广(辽葵杂二号)。因此,对现有杂交种适应性和产量潜力的分析和估价对于因地制宜合理利用杂交种,充分发挥杂交种的最大增产潜力具有十分重要的现实意义。作物的产量是由品种的遗传型和环境交互作用的结果来决定的。由于品种间遗传稳定性的差异,不同的品种在不同的环境条件下的产量表现往往差异较大。一个稳定性强的品种受
In recent years, our province has bred some good hybrid combinations of sunflowers and entered the provincial regional trials and production trials. Some of these combinations have passed the appraisal and have been popularized and applied in production (Liao Kui Hybrid No.1) with considerable economic benefits. Some of the combinations have just been approved for identification (Liao Kwai No. 2). Therefore, the analysis and appraisal of the adaptability and yield potential of the existing hybrids is very important for rational utilization of hybrids according to the local conditions and to give full play to the maximum yield potential of hybrids. The yield of a crop is determined by the interaction between the genetic type of the breed and the environment. Due to the differences in the genetic stability among cultivars, the yields of different cultivars often differ greatly under different environmental conditions. A strong stability by the species