Reprintedfrom Crop Science
Vol. 39,No.2
Registration of KS96WGRC37
Powdery Mildew-Resistant Hard White
Winter Wheat Germplasm
KS96WGRC37(Reg. no. GP-556, Pl 604222) is a powdery
mildew-resistanthard white winter wheat (Triticum aestivumL.)
germplasmdevelopedcooperativelyby the USDA-ARS, the Kansas Agriculhual Experiment Station, and the Wheat Genetics
ResourceCenter.It was releasedas a germplasmin August 196.
KS96WGRC37is an Fy'erived line with the pedigree'Arlin'
*3/TA 895. Arlin is a hard white winter wheat cultivar, and TA
895 is a powdery mildew-resistantaccessionof Triticam timopheevii (Zhrrk.)Zhvk. subsp.umeniacam (Iakubz.)van Slageren(syn.
svbsp.arwatican) from northern lraq. Seedlingsof KS96WGRC37 exhibiteda low to intermediateinfection type (<4 on a scale
of 0 to 9) when inoculatedwith IsolateI of ErysiphegraminisDC.
f. sp. tritici Em. Marchal fsyn. Blumeria graminis (DC.) E.O.
Speerf. W. triticil, the causalagentof powdery mildew. Isolate I
elicits a high infection type on the gene Pm6, which was transferred previouslyfrom T. timopheeviisubsp.timopheevii.Detached
leavesof Arlin and KS96WGRC37 were inoculatedwith 37 diverseisolatesof E. graminis f.q. tritici. Arlin had a low infection
type (0) with one isolate,an intermediateinfection type (4) witlt
one isolate,and a high infection tyq Q-9) with the remaining 35
isolates.KS%WGRC37haAa low infectiontype (0-3) with nine,
an intermediafeinfection type (zt-6) with 25, anda high infection
type (7-9) with three isolates(l). KS%WGRC37 was testedas
experimentallineU2659-2-9-lvl2.lt is similar to Arlin in height,
daysto heading,kemel color, and overall phenotype.
Small quantities(2 g) of seedof KS96WGRC37 re available
upon written request.Appropriate recognitionofsource shouldbe
givenwhen this germplasmconfiibutesto researchor development
of a new breedingline or cultivar. Seedstocksare maintainedby
the Wheat GeneticsResourceCenter, Dep. of Plant Pathology,
Throckmorton Plant SciencesCenter, Kansas State University,
Manhattan,KS 66506. Genetic material of this releasewill be
depositedin theNational PlantGermplasmSystemwhereit will be
availablefor researchpurposes.
G. L. BROwN-GueDRe,*T. S. COX,B. S, GLL,
R. G. Srnns, ANDS. Leern (2)
Referencesand Notes
1. Brown-Guedira,
G.L.,B.S.Gill,T.S.Cox,ardS.Irafi. 1997.Transfer
genesfromTriticwnaratmicrun
resistance
b cormonwheat.
of disease
PlantBreed.I 16:105-1
12.
2. G.L. Brown-Guedira,
USDA-ARS
andDep. of Agrornmy,ard R.G.
KS 66506KansasStaeUniv., Manhauan,
Sears,Dep.of Agronomy,
PO,AP fr23U,Irdia (fonnedy
Paarchem
5501;T.S.Cox,ICRISAT,
Kansas
Sat
USDA-ARS
d KSID;B.S.Gill, Dep.of PlantPathology,
andD€p.
Univ.,Manhauan,
KS6650G550;ard S. lrah, USDA-ARS
NC,27695NortrCarolina
StaEUnivenity,Ralergh,
of PlantPatholory,
Agric.
ardthgKansas
of theUSDA-ARS
7629.Cooperative
investigations
Agric. Elrp.Stt., Kansas
Exp.Str.. Contrihrtionrr. %-39-1, Kansas
byCSSA.Acceped
KS655mE. Registration
Str@Univ.,lvlanhafian,
authorGbg@ku.edu).
31Oct. 1998.*Correspording
(199).
in CtopSci.39:596
Published