摘要:
太谷核不育小麦的发现,进一步推动了小麦抗赤霉病的研究。利用太谷核不育小麦轮回选择的方法,可以显着地提高小麦品种的抗赤霉病性。轮回选择通过选择、杂交、重组、累加,再选择、再杂交、重组、累加,周而复始的选择,能不断有效地将抗赤霉病基因重组和累加起来。本研究自1985年以来,经过连续十年轮回选择和抗赤霉病性的多点鉴定,育成了抗赤霉病性超过苏麦3号的有七个新品系,抗性类型接近苏麦3号的有35个新品系,其中大部分材料比苏麦3号早熟,20多份材料丰产性比苏麦3号好,有些材料已在全国8个省的育种单位作为抗源利用。抗赤霉病性反映良好,表明利用太谷核不育小麦进行抗赤霉病性轮回选择,对提高小麦品种的抗赤霉病性效果显着。
Abstract:
The finding of Taigu nucleus sterile wheat promoted the study on improving resistance to headblijght of wheat.The recurrent selections with the wheat, by ways of repeatedly screening,crossing, gene recombining and gene adding, makes it possible to gradually and effectively recom-bine and accumulate the genes of resistance to headblight disease.With the work of recurrent selsc-tions for 10 years and the appraisal of resistance in different sites, the studies have resulted in 7 strains with the resistance exceeding Sumai No.3 and 35 strains with the resistance similar to Sumai No.3.among which most strains matured earlier than Sumai No.3.Some of them have been used as the resistance resources by the breeding groups of 8 provinces all over the country.
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