一、序言在小麦育种中,常用的选择方法是系统选择、集团选择和二者兼而有之的选择方法。但是这些选择的效果要受到地力、气候及育种者的经验和水平的影响,尤以试种地段条件与品系的生产性能不适应,更易导致错误的选择,使中选材料无法适应育种目标提出的要求。为此,试用对比法测产的办法对小麦高代材料进行选择,用客观的比较来弥补直观和经验的不足,以提高育种效率,就是我们开展这一工作的目的。 I. Preface In wheat breeding, the commonly used selection method is the system selection, group selection and the selection method of both. However, the effects of these options are affected by the experience and level of geography, climate and breeders, especially when the conditions of the trial plots and the production performance of the strains are not suitable, leading to wrong choices and making the selected materials unable to meet the requirements of breeding objectives . To this end, the trial method of comparing the production of wheat on behalf of the high generation of materials to choose, with objective comparison to make up for the lack of visual and empirical, in order to improve the efficiency of breeding, is that we carry out this work.