遗传因素对河北省玉米新品种推广的影响

The Effect of Genetic Factors on Popularization of Maize New Varieties in Hebei Province

通过对主要玉米品种推广分析,以及对代表性玉米种植户的调查研究,探讨了遗传因素对河北省玉米新品种推广的影响程度。研究结果表明,品种自身的优良遗传性状对玉米新品种的推广起决定作用;推广潜力大的新品种应具备产量高、品质优、抗性强、适应性广和较长的生育期等特点,其中抗逆性和适应性是决定品种推广范围和推广寿命的关键因素,株型不是影响品种推广的主要因素;遗传因素作为决定品种优劣的内在因素,决定着品种的推广成效。研究结果为河北省玉米新品种推广提供了参考依据。

The effects of genetic factors on the popularization ot maize new varieties m Hebel Province nave been studied through the analysis of the extending of major maize varieties and the investigation of repre- sentative maize growers. The results indicated that the integrated elite characters of the new variety play the main part in its popularization; the high potential variety should possess the characteristics like high yield, good quality, strong resistance to stresses, wide adaptability, and longer growth period, and among them the resistance to stresses and adaptability are the key factors determining the extending scale and the longevity of the variety, however plant structure have less to do with variety popularization; as an intrinsic factor, the genetic constitution determine the final results of variety extending. The achievement of this research can be referred for the new variety extending in Hebci Province.