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期 刊 ：植物保护学报 2000年

关键词：小麦；慢锈；相关分析；聚类划分；品种；抗病育种；

Keywords:wheat, slow-rusting, correlation analysis, clustering,

摘 要 ：对８２份小麦品种（系）进行大田成株慢锈性鉴定，并通过潜育期、病情指数和千粒重损失率等３个抗性组分的相关分析和品种聚类分析，将供试品种划分为５大类，即高度慢锈性品种、中度慢锈性品种、耐锈性品种、中度快锈笥品种和高度快锈性品种。划分结果与前人的经验划分结果符合率达９２．６８％，分别建立了５个判别函数。对３个抗性发的相关分析结果表明，潜育期与病情指数、千粒重损失率呈极显著负相关，且病情指数对千粒重损失率

Abstract:Slow-rusting of 82 Chinese cultivars (lines) to stripe rust was identified at boot stage of plant development in the fields. 5 resistance types were divided by means of correlation analysis of resistance components, namely latent period, disease index and

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