五十年代以来,虽有很多学者对玉米产量构成因素数量性状的遗传参数进行了大量研究并广为玉米高产品种的选育所借鉴。但是,数量性状的遗传行为受到取材和各种环境因素较大的影响,因而在嫩江地区目前尚无具体资料可供参考的情况下,进行有关方面的研究尤为必要。本研究以嫩江地区推广的及在该地区试验多年证明适合推广的玉米杂交种F_1代为 Since the 1950s, although many scholars have done a lot of research on the genetic parameters of the quantitative traits of corn yield components and have drawn lessons from the breeding of high-yielding varieties of corn. However, the genetic behavior of quantitative traits is affected by the material and various environmental factors, so there is no specific data available for reference in the Nenjiang area. Therefore, it is necessary to carry out relevant research. In this study, the F 1 hybrids that were popularized in Nenjiang area and proved to be suitable for popularization in this area for many years were