International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (436) Last page : (441)
Article doi: http://dx.doi.org/10.18782/2320-7051.5081
Evaluation of Wheat Germplasms for the Identification of Resistant Sources to Yellow Rust Caused by Puccinia striiformis West. Tritici
Elangbam Premabati Devi1*, Deepshikha2 and J.P. Jaiswal2
1Wheat Research Station, Vijapur 382 870, S.D.A.U., Gujarat
2G.B.P.U.A.T., Pantnagar 263 145, Uttarakhand
*Corresponding Author E-mail: epremabati35@gmail.com
Received: 28.06.2017 | Revised: 25.07.2017 | Accepted: 1.08.2017
ABSTRACT
Growing cultivars with adequate level of durable resistance is the best strategy to manage yellow rust. Although, evolution of new physiological races/pathotypes resulting to overcome the effects of current resistance cultivar has force for evaluation of large number of wheat germplasms, breeding materials, cultivars for their reaction to yellow rust. In this context, field based assessment for partial resistance in thirty three promising wheat germplasm accessions against two predominant pathotypes of yellow rust revealed that eight accessions viz. EC-411587, EC-597926, EC-661236, IC-274478, IC-278958, IC-467770, IC-467771, and IC-467778 were resistance while three accessions viz. EC-661233 EC-692222 EC-692243 showed moderately resistance according to final rust severity data. Fourteen germplasm accessions showed moderately susceptible reaction while eight accessions were recorded as susceptible ranging from 50 to 60 per cent in final rust severity. AUDPC values of ten accessions were above 500 to 1015 while 13 accessions were in the range of 200-500. The remaining 13 accessions with resistance to moderately resistance reaction were observed with less than 200 in AUDPC values which clearly indicate that they were acquiring partial resistance with exhibiting good response of resistance under high disease pressure of epiphytotic condition that could be due to the presence of some effective adult plant resistance Yr genes. Correlation coefficient in between ACI with AUDPC (0.99**) and ACI with FRS (0.96**) were positively correlated by highly significance.
Key words: Adult plant resistance, durable resistance, pathotype/race, stripe/yellow rust
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Elangbam, P.D., Deepshikha and Jaiswal, J.P., Evaluation of wheat germplasms for the identification of resistant sources to yellow rust caused by Puccinia striiformis West. tritici, Int. J. Pure App. Biosci.5(4): 436-441 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5081
