000			02264nam a22005297a 4500
001			G54391
003			MX-TxCIM
008			121211s ||||f| 0 p|p||0|| |
020			_a968-6127-39
040			_aMX-TxCIM
041	0		_aEn
043			_aQY
072		0	_aH10
072		0	_aH20
082	0	4	_a91-061795
100	1		_aRamirez Araya, I.
111	2		_aWorld Perspectives on Barley Yellow Dwarf International Workshop _cUdine (Italy) _d6-11 Jul 1987
245	0	0	_aA review of barley yellow dwarf virus in the Southern Cone Countries of South America
260			_c1990
340			_aPrinted
500			_a30 ref.; Summary (En)
520			_aAphids and barley yellow dwarf (BYD) have been known in the southern Cone countries of South America (Argentina, Bolivia, Brazil, Chile, Paraguay, and Uruguay) for many years, but the aphids role as vectors of barley yellow dwarf virus (BYDV) in cereals was not apparent until the late 1960s. The aphid vectors most widely distributed throughout the region are Metopolophium dirhodum (Walker), Sitobion avenae (Fabricius), Rhopalosiphum padi (L.), and Schizaphis graminum (Rondani). BYD was positively identified in 1967 (Brazil) and 1972 (Chile). During 1974/75 and 1975/76 severe BYD epidemics developed, with losses in the range of 10 to 60 %. From
546			_aEnglish
591			_aWorld Perspectives on Barley Yellow Dwarf International Workshop. Udine (Italy). 6-11 Jul 1987 CIMMYT, Ap. 6-641, 06600 Mexico, D.F. - Mexico|COMOD
595			_aAC
650	1	0	_aAmerica
650	1	0	_aAphididae
650	1	0	_aAphidoidea
650	1	0	_aArthropoda
650	1	0	_aDisease transmission
650	1	0	_aHemiptera
650	1	0	_aHomoptera
650	1	0	_aInsecta
650	1	0	_aLatin America
650	1	0	_aLuteoviruses
650	1	0	_aPathogenesis
650	1	0	_aPests of plants _91201
650	1	7	_aPlant diseases _gAGROVOC _2 _91206
650	1	0	_aPlant viruses _91543
650	1	0	_aResource conservation
650	1	0	_aResource management
650	1	0	_aSouth America
650	1	0	_aSternorrhyncha
650	1	0	_91306 _aViruses _gAGROVOC
773	0		_tBurnett, P.A. (ed.). World perspectives on barley yellow dwarf. Proceedings. Mexico, DF (Mexico). CIMMYT. 1990. p. 29-34 _n91-061795
942			_cREP
999			_c2297 _d2297