CHARACTERIZATION OF STRIPE RUST (Puccinia striiformis) RESISTANCE IN ELITE WHEAT GENOTYPES

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dc.contributor.advisorPandey, M.K.
dc.contributor.authorSadotra, Neeru
dc.date.accessioned2020-12-14T07:25:42Z
dc.date.available2020-12-14T07:25:42Z
dc.date.issued2020-01-14
dc.description.abstractStripe rust (Puccinia striiformis) is one of the major constraints for enhancing production of the wheat crop under cold weather conditions in North western plain zone of India. Present study was conducted at Research Farm, SKUAST-J with the objective characterization of stripe rust (Puccinia striiformis) resistance in elite wheat genotypes. The present investigation comprising advance breeding lines from CIMMYT in the form of IBWSN (International Bread Wheat Screening Nursery), cultivars of NWPZ and susceptible varieties (Agra Local, WL-711, Kharchia-65 and PBW-343) were selected for detailed study. The genotypes IBWSN-1046,1059,1086,1102,1129,1284,1286,1287, 1288, 1293, 1294 were immune infection type at seedling stage and also adult plant stage against all three pathotypes 78S84, 46S119 and 110S119. Genotypes IBWSN-1160, 1164, 1038, 1168,1041, 1042, 1175, 1046,1049,1242,1067, 1081, 1082, 1253, 1086, 1087, 1290, 1291, 1098,1105, 1298, 1114, 1300, 1115, 1118, 1148, 1153 and PBW-752 showed R, MR, MS and S infection type with quite slower rate and low level of severity (<20). Such genotypes may exhibit better field durability than those possessing vertical (immune) resistance genes only. Genotypes IBWSN-1021, 1154, 1033, 1165, 1167, 1039, 1030, 1161, 1163, 1169, 1172, 1043, 1173, 1044, 1174, 1045, 1177, 1178, 1048, 1239, 1268,1094,1097, 1099, 1295, 1103, 1296, 1299,1109, 1122, 1141, 1144, 1145, 1149, 1151, 1152 and WH-1080 truly represents acceptable levels of slow rusting, which restricts the evolution of new virulent races of the pathogen because multiple point mutations are extremely rare in nature.Total sugars and non-reducing sugars were higher in susceptible genotypes but reducing sugars and phenols were higher in resistant genotypes at 40 and 70 days after sowing. At 70 days after sowing, amount of total sugars, reducing sugars and non-reducing sugars were reduced but total phenols were increased in comparison to 40 DAS in both resistant and susceptible genotypes.en_US
dc.identifier.otherJ-17-M-513
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810156626
dc.keywordsSTRIPE RUST, PUCCINIA STRIIFORMIS, INFECTION TYPE, PATHOTYPEen_US
dc.language.isoEnglishen_US
dc.pages76en_US
dc.publisherDIVISION OF PLANT PATHOLOGY Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, Main Campus, Chatha, Jammuen_US
dc.subPlant Pathologyen_US
dc.themeCHARACTERIZATION OF STRIPE RUST (Puccinia striiformis) RESISTANCE IN ELITE WHEAT GENOTYPESen_US
dc.these.typeM.Scen_US
dc.titleCHARACTERIZATION OF STRIPE RUST (Puccinia striiformis) RESISTANCE IN ELITE WHEAT GENOTYPESen_US
dc.typeThesisen_US
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