Miller Hayley R, Randolph Terri L, Peairs Frank B
Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, USA.
J Econ Entomol. 2003 Jun;96(3):673-9. doi: 10.1093/jee/96.3.673.
Laboratory experiments were conducted to determine categories of resistance to Russian wheat aphid, Diuraphis noxia (Mordvilko), in three wheats, Triticum aestivum L, (PI 372129, PI 243781, and PI 222668) at Zadoks growth stages 10, 20, 30, and 40. 'TAM 107' was used as the susceptible standard. Antixenosis was observed in PI 222668 and PI 372129. Antibiosis was expressed as reduced nymphipositional period, daily nymph production, and fecundity at the jointing (Zadoks 30) and boot (Zadoks 40) stages in PI 243781 and at tillering (Zadoks 20) in TAM 107. Antibiosis, expressed as reduced intrinsic rate of increase, was observed in PI 222668 at tillering (Zadoks 20). Tolerance to chlorosis and leaf rolling was expressed in the three resistant wheats at all growth stages tested. Tiller production, floret formation, spike length and wet weight were affected by Russian wheat aphid feeding after Zadoks 10. Reduction in spike length did not occur in PI 372129 and PI 243781.
在Zadoks生长阶段10、20、30和40，对三种小麦（普通小麦Triticum aestivum L.，品种为PI 372129、PI 243781和PI 222668）进行了实验室试验，以确定其对俄罗斯小麦蚜Diuraphis noxia (Mordvilko)的抗性类别。‘TAM 107’用作感病对照品种。在PI 222668和PI 372129中观察到抗生性。在PI 243781的拔节期（Zadoks 30）和孕穗期（Zadoks 40）以及TAM 107的分蘖期（Zadoks 20），抗生性表现为若虫产卵期缩短、每日若虫产量和繁殖力降低。在PI 222668的分蘖期（Zadoks 20）观察到抗生性，表现为内禀增长率降低。在所有测试的生长阶段，三种抗性小麦均表现出对黄化和叶片卷曲的耐受性。在Zadoks 10之后，俄罗斯小麦蚜取食会影响分蘖数、小花形成、穗长和湿重。PI 372129和PI 243781的穗长没有缩短。
