高寒地区超强抗寒新品种“东农冬麦1号”的选育

TL;DRAbstract

The winter wheat breeding for the freezing tolerance and the researches of cultivation techniques for survival over winter began to carry out in Harbin from 1994 in order to cultivate winter wheat cultivars which are able to survive over winter in the rigid region of Heilongjiang Province in China. The hybridization among winter wheat cultivars with higher freezing tolerance has been used so as to accumulate the genes of freezing tolerance and to performance over-parents inherence in the breeding generations because the freezing tolerance is proved to be a quantitative genetic trait.471 crosses have been made and a line named Dongnong024 with freezing tolerance and high yield was selected from the cross of Norstar//Muyin88-13/Alabaskaja in 2002. With the protective cultivation, the line was proved to be able to survive over winters whether the snow was thick or thin during four years regional and productive trails. The line was certificated as a new winter wheat cultivar by the Heilong

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