The barleyyellowdwarfvirus survives from one crop to the next in volunteer wheat, oats, barley, perennial and annual grasses, and in its aphid vectors. In the fall, emerging seedlings can be inoculated by aphids that acquired the virus from infected volunteer cereal or grass hosts. Additionalkey words: aphids, cereal viruses. The use of tolerant oat (Avena sativa L.) cultivars is currently the only practical means of controlling the barleyyellowdwarfvirus (BYDV) disease. In 1951, the characteristics of BarleyYellowDwarfVirus (BYDV) were first seen in barley in California, giving its name of BYDV (Oswald and Houston, 1951). Later, the disease was detected inOat along with wheat (Triticum eastivum)... ABSTRACT Barleyyellowdwarfviruses (BYDVs) are the most serious and widespread viruses of oats, barley, and wheat worldwide. Natural resistance is inadequate. Toward overcoming this limitation, we engineered virus-derived transgenic resistance inoat. Quantification of yield losses caused by barleyyellowdwarfvirusin wheat and oats. Plant Dis. 2002;86(7):769–773. The effects of a PAV isolate of barleyyellowdwarfvirus inoculated to oats at four different growth stages were evaluated in a field trial in Sweden. Barleyyellowdwarfvirus on oats. Symptoms include stunting chlorosis and reddening. Photo by Keith Weller, USDA ARS, Bugwood.org. A survey of Barleyyellowdwarfvirus (BYDV) was conducted in major oat-growing areas of Korea in 2020. BYDV is an economically important pathogen of cereal crops that can be transmitted by aphids. The Genetics of Resistance to BarleyYellowDwarfVirUsinOats.Barleyyellowdwarf (BYD), an aphid transmitted disease, attacks all of the small grain cereals, including bread wheat, durum wheat, barley, oats and triticale; it is ubiquitous in the world's cereal crop. Barleyyellowdwarfvirus (BYDV) causes signicant losses in yield and in overwintering ability of winter cereals. Mechanisms by which the physiology of plants is aected by the virus are not clear. As Since absolute units of yield, such as t/ha ment Corporation provided financial support for Table 1. Relationship between incidence of Barleyyellowdwarfvirus (BYDV) and the yield gapa (kg/ha) as affected by time of assessment for BYDVin wheat and oat field trials in southwestern... Yellow discoloration down to the base of the leaves, stunted roots and foliage. What You Should Know. BYDV is transmitted by aphids in a persistent manner. Transmitted by the English grain aphid and bird cherry oat aphid.Barleyyellowdwarfvirusin Idaho cereal crops. 452 Earley yellowdwarfvirusin cereals. TABLE 2. Barleyyellowdwarfvirus tolerance of oat varieties. Inoculated at three stages of growth (Ottawa 1961) (Expt.2). Barleyyellowdwarfvirus (BYDV), which is a member of the genus Luteovirus (Luteoviridae), is one of the most common pathogens of cereal crops throughout the world (Jedlinski, 1981).2002. Quanti-fication of yield losses caused by barleyyellowdwarfvirusin wheat and oats. Plant Dis.
