Genetics of resistance to Ascochyta blight in chickpea
233 / 148
Authors
-
MAHENDRA PAL, S. PANDIA RAJKUMAR JITENDRA KUMAR· and BIRENDRA SINGH
Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 110 012
Keywords:
Chickpea, Cicer arietinum, resistance. Ascochyta blight, genetics, gene actionAbstract
Field experiments were conducted at the Indian Agricultural Research Institute, New Delhi, India, during 1995-96, to study the genetics of resistance to blight, caused by Ascochyta rabiei, in chickpea. The segregation in F2 populations in 6 resistant X susceptible crosses indicated that blight resistance of chickpea is controlled by 2 dominant complementary genes. The segregation pattern between resistantXresistant crosses revealed that the genes for blight resistance in the line JM 595 and P 1528-1 were different from the genes operating in FLIP 91-24C and FLIP 84-92C. The resistant lines were designated as R1R1R2R2 for JM 595 and P 1528-1 and R3R3R4R4 for FLIP 91-24C and FLIP 84-92C. Six generations (P1, P2, F1, F2, BCP1 and BCP2) of 6 resistantX susceptible crosses were used to determine the nature of gene action through generation mean analysis. The resistance for blight in the present material was governed by both additive as well as non-additive gene action.
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.