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为了缩短育种年限,加快育种进程,从1974年开始,我们在北京和黑龙江省嫩江县双山(九三农管局科研所)进行冬小麦加代试验。四年来,在加代试验中种植90个组合的F_1—F_5共2,658个株系。与此同时,将一些定型品种和稳定品系的一半在北京大田秋播,另一半在双山春繁,以比较它们在不同条件下主要经济性状的变化规律。探讨在异地进行性状选择的可能性,从而进一步提高育种效率。现将几年来的结果整理如下。
In order to shorten the breeding period and accelerate the breeding process, we started the winter wheat test in Beijing and Shuangshan (1993) of Nongjiang County, Heilongjiang Province, starting from 1974. Over the past four years, a total of 2,658 F_1-F_5 lines were planted in the additive test in 90 combinations. In the meantime, half of the sown varieties and stable lines were sown in autumn in Beijing Daejeon and the other half in Shuangshan spring and spring to compare their changes in major economic traits under different conditions. To explore the possibility of trait selection in different places so as to further improve the breeding efficiency. Now the results of the past few years are summarized below.