Macrophomina phaseolina induced changes in plant water relations of resistant and susceptible cowpea genotypes
182 / 139
Authors
-
UDAY BURMAN and SATISH LODHA
Central Arid Zone Research Institute, Jodhpur 342 003
Keywords:
Macrophomina phaseolina, Vigna unguiculata, plant water relations, cowpea genotypesAbstract
Susceptibility of cowpea genotypes to dry root rot caused by M. phaseolina increased with increasing soil moisture stress. Water relation parameters of the healthy and diseased plants of cowpea genotypes were studied at the time of mild and severe moisture stress (20-40 d after sowing). Shoot water potential decreased significantly in the healthy and diseased plants of susceptible genotype ARS Durgapura compared with resistant V-265. At severe moisture stress, diseased plants of ARS Durgapura reflected greater magnitude of changes in leaf transpiration, turgiscence and temp. compared with those of V-265. Higher susceptibility of ARS Durgapura to Macrophomina infection was associated with impairment of its water uptake processes.
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.