000 02357nam a22005657a 4500
001 G54422
003 MX-TxCIM
008 121211s ||||f| 0 p|p||0|| |
020 _a968-6127-39
040 _aMX-TxCIM
041 0 _aEn
043 _aQY
072 0 _aH20
082 0 4 _a91-013904
100 1 _aGildow, F.E.
111 2 _aWorld Perspectives on Barley Yellow Dwarf International Workshop
_cUdine (Italy)
_d6-11 Jul 1987
245 0 0 _aDistribution of barley yellow dwarf virus isolates in Pennsylvania and the effect of the PAV isolate on yield of oats
260 _c1990
340 _aPrinted
500 _a7 ref
520 _aFrom 1984 to 1986 isolates of barley yellow dwarf virus (BYDV) were identified in small grains collected from three cereals management regions of Pennsylvania. Of 300 plants, 82, 19, 9 and 4 were infected with isolates resembling PAV, RPV, MAV, and RMV, respectively, based on enzyme immunoassays and aphid transmission bioassay tests. Of these plants, 16 % were infected with two isolates, suggesting that infection resulted from inoculation by two aphid species, or by dependent virus transmission from doubly infected source plants. Only 5 % of 329 alate Rhopalosiphum padi (L.) and Sitobion avenae (Fabricius) collected in the field 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 _aAvena
650 1 0 _aBiological properties
650 1 0 _aDisease transmission
650 1 0 _aGramineae
650 1 0 _aHemiptera
650 1 0 _aHomoptera
650 1 0 _aInsecta
650 1 0 _aLuteoviruses
650 1 0 _aMicrobial properties
650 1 0 _aMiddle atlantic states usa
650 1 0 _aNorth America
650 1 0 _aNorth eastern states usa
650 1 0 _aPathogenesis
650 1 7 _aPlant diseases
_gAGROVOC
_2
_91206
650 1 0 _aPlant viruses
_91543
650 1 0 _aSternorrhyncha
650 1 0 _aUSA
650 1 0 _91306
_aViruses
_gAGROVOC
700 1 _aFrank, J.A.,
_ecoaut.
773 0 _tBurnett, P.A. (ed.). World perspectives on barley yellow dwarf. Mexico, DF (Mexico). CIMMYT. 1990. p. 383-386
_n91-013904
942 _cREP
999 _c2328
_d2328