Effect of soil texture and depth on the survival of Rhizoctonia solani in soil
292 / 108
Authors
-
PRATIBHA SATI and A.P. SINHA
Department of Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar 263 145
Keywords:
Sheath blight, rice, Rhizoctonia solani, survival, soil types, soil depthAbstract
The survival of the rice sheath blight pathogen, R. solani, was studied under different soil types and soil depths in greenhouse tests. Survival of R. solani was greater in sandy loam than in clay loam or Bhabher soils. The fungus survived in plantdebris upto 33.3 and 40% in clay loam and sandy loam, respectively, after 150 days. The sclerotia placed in sandy loam, clay loam and Bhabher soils, survived upto 36.7, 33.7 and 30.0%, respectively, after 330 days. Infected leaf sheath pieces placed at 2.5, 5.0, 10.0 and 15.0 cm. depths in soil showed upto 43.4, 36.6, 33.3, 23.3 and 6.6% reduced survival, respectively, after 150 days. The fungus in the form of sclerotia did not survive at the depth of 2.5 cm. and 20 cm. after 240 and 300 days, respectively. Maximum survival (330 days) of the fungus was observed when sclerotia were placed at the depth of 5-10 cm.
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.