Pathotype 104-3 (21R63) of Puccinia recondita tritici with combined virulence for Lr23 and Lr26
133 / 90
Authors
-
S.K. NAYAR, M. PRASHAR, S.C. BHARDWAJ J. KUMAR and L.R. VERMA
Directorate of Wheat Research, Regional Station, Flowerdale, Shimla 171 002
Keywords:
Brown rust, Puccinia recondita tritici, pathotypeAbstract
A sample of Puccinia recondita f.sp. tritici from wheat in Nepal yielded a pathotype of 104 group producing infection types different from other pathotypes of the group. This new pathotype, designated 104-3(21R63) is described. The distinguishing features of this new pathotype compared with other pathotypes of race group 104 which are virulent on Lr23 or Lr26 or both are summarised. Among the 42 identified/released wheat lines since 1990, 21 lines were resistant against the 104-3(21R63) pathotype. Eighteen lines from the advance generation material evaluated during 1995-96 which were resistant against all the pathotypes, maintained resistance against 104-3(21R63) also. Resistance genes like Lr9, Lr19, Lr24, Lr25, Lr28 and Lr32 provide complete resistance against all the pathotypes including 104-3(21R63).
Downloads
Issue
Section
License
For Authors
As soon as an article is accepted for publication, authors are requested to assign copyright of the article (or to grant exclusive publication and dissemination rights) to the publisher (Indian Phytopathlogical Society). This will ensure the widest possible protection and dissemination of information.
For Readers
While the advice and information in this journal is believed to be true and accurate at the date of its publication, the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may have been made. The publisher makes no warranty, express or implied, with respect to the material contained herein.
All articles published in this journal are protected by copyright, which covers the exclusive rights to reproduce and distribute the article (e.g., as offprints), as well as all translation rights. No material published in this journal may be reproduced photographically or stored on microfilm, in electronic data bases, on video disks, etc., without first obtaining written permission from the publisher. The use of general descriptive names, trade names, trademarks, etc. in this publication, even if not specifically identified, implies that these names are protected by the relevant laws and regulations.