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以高度快粉品种陕167-6为对照,对51份感病冬小麦品种(系)进行了2a的慢粉性鉴定,结果表明供试品种(系)的病情指数为6.87%~86.42%,千粒重损失率0.28%~42.59%,相对千粒重损失率1.35%~205.75%,品种(系)间存在很大差异。经对供试品种慢粉性评价,清81t-53等3个品种(系)为高度慢粉品种,占5.88%;清85-261等28个品种(系)为中度慢粉品种,占54.90%;83-88-5等8个品种(系)为低度慢粉品种,占17.65%;清农3号等3个品种(系)为高度快粉品种,占5.88%。同时,对慢粉品种的鉴定方法和高、中度慢粉品种的利用问题进行了讨论。
The fast susceptible wheat cultivar Shaan166-6 was used as a control to identify 51 susceptible winter wheat cultivars (lines). The disease index of the tested cultivars (lines) was 6.87% ~ 86. 42%, the loss rate of 1000-grain weight was 0.28% -42.59%, and the relative loss rate of 1000-grain weight was 1.35% ~ 205.75%. There were great differences among varieties (lines). The results showed that 81 varieties (lines) of 81t-53 were high-grade slow-flour varieties, accounting for 5.88%; 28 varieties (lines) of Qing 85-261 were medium-grade slow-flour varieties , Accounting for 54.90%; 83-88-5 and other 8 varieties (lines) were low-grade slow-flour varieties, accounting for 17.65%; Qingnong 3 and other 3 varieties (lines) 5.88%. At the same time, the methods of appraising the slow flour varieties and the utilization of high and moderate slow flour varieties are discussed.