Quantification of Yield Loss Caused by Triticum mosaic virus and Wheat streak mosaic virus in Winter Wheat Under Field Conditions
Quantification of Yield Loss Caused by Triticum mosaic virus and Wheat streak mosaic virus in Winter Wheat Under Field Conditions
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DOI：
10.1094/pdis-04-13-0419-re
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发表时间：
2014-01-01
期刊：
影响因子：
4.5
通讯作者：
French, R.
中科院分区：
文献类型：
--
作者：
Byamukama, E.;Wegulo, S. N.;French, R.
小麦花叶病毒（TriMV）和小麦条纹花叶病毒（WSMV）感染美国大平原地区的冬小麦（Triticum aestivum）。这两种病毒由小麦卷螨（Aceria tosichella）传播，该螨也传播高原病毒。在2011年和2012年进行的一项田间研究中，冬小麦品种Millennium（WSMV易感）和Mace（WSMV抗性）在两叶生长阶段机械接种TriMV、WSMV、TriMV+WSMV或无菌水。测定叶绿素计（土壤植物分析开发 [SPAD]）读数、SPAD 进度曲线下面积 (AUSPC)、谷物产量（=产量）、产量构成（穗/米 (2)、粒/穗、1,000 粒重量）和气干物质。在千禧年，单次或双次病毒接种均显着降低了所有测量变量，其中双次接种治疗中降低幅度最大。在产量组成部分中，最大的减少发生在峰值/m(2) 上。在 Mace 中，2012 年 TriMV+WSMV 治疗仅显着降低了 AUSPC。
Triticum mosaic virus (TriMV) and Wheat streak mosaic virus (WSMV) infect winter wheat (Triticum aestivum) in the Great Plains region of the United States. The two viruses are transmitted by wheat curl mites (Aceria tosichella), which also transmit High Plains virus. In a field study conducted in 2011 and 2012, winter wheat cultivars Millennium (WSMV-susceptible) and Mace (WSMV-resistant) were mechanically inoculated with TriMV, WSMV, TriMV+WSMV, or sterile water at the two-leaf growth stage. Chlorophyll meter (soil plant analysis development [SPAD]) readings, area under the SPAD progress curve (AUSPC), grain yield (=yield), yield components (spikes/m(2), kernels/spike, 1,000-kernel weight), and aerial dry matter were determined. In Millennium, all measured variables were significantly reduced by single or double virus inoculation, with the greatest reductions occurring in the double-inoculated treatment. Among the yield components, the greatest reductions occurred in spikes/m(2). In Mace, only AUSPC was significantly reduced by the TriMV+WSMV treatment in 2012. There was a significant (P