东北地区玉米育种存在问题及解决方法

Problems and Solutions to Maize Breeding in Northeast China

当前东北地区玉米育种存在几大主要问题是:种质资源匮乏,育种水平相对较低,耐密性差,果穗籽粒降水慢,不抗病虫害,商品品质差,抗倒伏能力差,不宜机收等等。本文就东北地区玉米育种存在问题、应对措施、育种材料的选用、种质资源的引进与创新、选系方法、杂优模式等几大问题进行阐述,以供参考。

At present,there are several main problems in corn breeding in northeast China:lack of germplasm resources,relatively low level of breeding,poor density tolerance,slow precipitation of ear seeds,no resistance to diseases and pests,poor quality of commodities,poor lodging resistance,and unsuitable for harvest.In this paper,the problems of maize breeding in northeast China,the countermeasures,the selection of breeding materials,the introduction and innovation of germplasm resources,the selection methods,hybrid model and so on were discussed for reference.