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不完全间断回交方法,其特点是与回交亲本轮回杂交时不选用明显杂合的杂交第一代植株,而用杂交第三代最丰产和抗寒的类型。试验表明,用米隆诺夫808两次回交后得到的冬小麦杂种,其抗寒性即可这到回交亲本的水平,并在株高为80—90厘米的情况下比回交亲本增产15—20%。用品种曙光进行第3次回交所得的类型,因千粒重增加而使产量提高到70公担/公顷(超过标准品种33%),并具有抗网腥黑穗病的特点,而且籽粒品质有所提高,还保持高度抗倒伏性。
Not completely discontinued backcrossing method, which is characterized by hybrid backcross with the parent backcross selection did not use significantly hybrid first generation plants, but with the third generation of hybrids the most productive and cold type. The results showed that winter wheat hybrid obtained after twice backcrossing by Milonov 808 could reach the level of backcrossing parents and increase the yield of backcrossing parents at the height of 80-90 cm -20%. The type of backcross obtained with the dawn of the breed raised the yield to 70 kgs / ha (33% more than the standard variety) due to an increase in the 1000-grain weight and had the anti-reticulum head smut characteristics and the improved grain quality , But also maintain a high degree of lodging resistance.