000 02934nab a22004217a 4500
001 G89715
003 MX-TxCIM
005 20230522222546.0
008 220519s2006 xxu|||p|op||| 00| 0 eng d
022 _a0191-2917
022 _a1943-7692 (Online)
024 8 _ahttps://doi.org/10.1094/PD-90-1485
040 _aMX-TxCIM
041 _aeng
090 _aCIS-4953
100 1 _aMawere, S.
_927562
245 1 0 _aResistance of four inbred maize lines to inoculation with 20 isolates of maize streak virus from Zimbabwe
260 _aSt. Paul, MN (USA) :
_bAmerican Phytopathological Society,
_c2006.
340 _aPrinted|Computer File
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0191-2917
500 _aPeer review
500 _aOpen Access
520 _aMaize streak is the most widespread and important disease of maize in sub-Saharan Africa. Maize streak virus (MSV)-resistant maize germ plasm is available in several countries, but little is known about the stability of its resistance to MSV strains that may differ from one region to another. We used four maize inbred lines (CML312, CML206, CML216, and MSR) known to differ widely for their resistance to MSV in Harare, and evaluated their resistance to 20 MSV isolates collected from the wild during 2 years at locations across Zimbabwe. Maize streak development and symptom severity were evaluated in replicated greenhouse experiments using artificial inoculation via viruliferous leafhoppers. All 20 MSV isolates induced maize streak symptoms on moderately and highly susceptible genotypes by about 1 week after inoculation (WAI). Differences among isolates for severity of early maize streak symptoms were ephemeral, and resistance was accurately differentiated by all isolates by 3 to 4 WAI. Differences in final maize streak symptom scores induced by the isolates were statistically significant, but differed only by a maximum of 7% in 1999 and 19% in 2000. Although genotype, isolate, and genotype by isolate effects for maize streak symptom scores were significant (P < 0.01), relative MSV resistance of the genotypes was consistently ranked by all 20 MSV isolates.
536 _aGenetic Resources Program
546 _aText in English
594 _aINT1617
650 7 _aMaize
_2AGROVOC
_91173
650 0 _aMaize streak virus
_gAGROVOC
_91947
650 7 _aDisease resistance
_2AGROVOC
_91077
650 7 _aInoculation
_95194
_2AGROVOC
650 7 _94323
_aViroses
_2AGROVOC
700 1 _aVincent, V.
_927563
700 1 _aMeyer, J. de
_96584
700 1 _9832
_aPixley, K.V.
_gGenetic Resources Program
_8INT1617
773 0 _tPlant Disease
_n634596
_gv. 90, no. 12, p. 1485-1489
_dSt. Paul, MN (USA) : American Phytopathological Society, 2006.
_wG444690
_x0191-2917
856 4 _yOpen Access through DSpace
_uhttp://hdl.handle.net/10883/3036
942 _cJA
_2ddc
_n0
999 _c26581
_d26581