The response of 25 registered winter wheat varieties to autumnal infection with Wheat dwarf virus (WDV) was studied in small plot trials in two years. The materials were infected by vectors, leafhopper Psammotettix alienus Dahlbom, 1851 from three-leaf stage to tillering. The symptoms expression was monitored in spring and plant height, weight of above ground biomass and grain yield were observed in summer. All tested varieties were evaluated as susceptible and divided into three groups: varieties Banquet and Svitava with 87.3–93.1% grain yield reduction as moderately susceptible, varieties Clever, Drifter, Niagara and Rialto with 95.6–97.68% grain yield reduction as susceptible and varieties Apache, Batis, Bill, Complet, Contra, Corsaire, Ludwig, Mladka, Nela, Record, Rheia, Semper, Sepstra, Solara, Sulamit, Tower, Trend, Vlasta and Winsdor with 99.7–100% grain yield reduction as very susceptible. Statistically significant differences were observed between moderately susceptible and susceptible varieties as well as very susceptible ones in absorbency values by means of DAS-ELISA.Keywords:Wheat dwarf virus (WDV); winter wheat; resistancedownload PDF Impact factor (Web of Science – Thomson Reuters) 2016: 0.742
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机译：在两年的小规模试验中研究了25个注册的冬小麦品种对小麦矮化病毒（WDV）秋季感染的反应。从三叶期到分ing期，这些材料均被媒介物叶蝉Psammotettix Alienus Dahlbom感染。春季监测症状表达，夏季监测植株高度，地上生物量重量和粮食产量。所有测试品种均被评估为易感品种，分为三类：中度易感品种的宴会和Svitava谷物产量降低87.3–93.1％，易感品种Clever，Drifter，Niagara和Rialto易变性和谷物产量降低95.6–97.68％和Apache ，Batis，Bill，Complet，Contra，Corsaire，Ludwig，Mladka，Nela，Record，Rheia，Semper，Sepstra，Solara，Sulamit，Tower，Trend，Vlasta和Winsdor，谷物减产99.7–100％非常敏感。通过DAS-ELISA，在中度易感和易感品种以及极易感品种之间的吸光度值存在统计学差异。冬小麦resistancedownload PDF影响因子（Web of Science –汤森路透）2016：0.742
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