Effect of storage temperature on survival, transmission of Ralstonia solanacearum and quality of potato tubers during storage

Authors

  • RAJESH KUMAR RANJAN*and DINESH SINGH

Keywords:

Bacterial wilt, potato, quality, Ralstonia solanacearum, storage, survival

Abstract

Ralstonia solanacearum (Smith, 1896) Yabuuchi et al. (1995) causing brown rot disease is one of the most devastating pathogen of potato. A study was conducted to determine the survivability of R. solanacearum in stored potato and subsequent its transmission in field and quality of potato at different temperature during storage. The potato cvs. Kufri Pukhraj and Kufri Jalandhar were collected from infested field with brown rot from Odisha and Uttarakhand respectively and stored for 6 months at 5 and 15°C temperatures. The study of classical dilution plate technique showed that maximum population of R. solanacearum (cfu log 6.30 / g of tissue) in symptomatic cv. Kufri Pukhraj and followed by cv. Kufri Jalandhar was recorded in samples stored at 15°C. Detection of R. solanacearum was also done through conventional-PCR and bacteria were detected from all symptomatic plants of both cultivars stored at 5 and 15°C whereas bacteria were detected from asymptomatic plant only in Kufri Jalandhar, which was stored at 5oC. The quality of stored potato like TSS, reducing sugar and total sugar of potato tuber gradually increased during storage and the acidity and firmness were found to be gradually declined during storage at all temperatures up to 60 days of storage in both the cultivars.

Downloads

Issue

Vol. 69 No. 4s (2016): Indian Phytopathology : Special Issue

Section

Research Articles

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.

How to Cite

DINESH SINGH, R. K. R. (2016). Effect of storage temperature on survival, transmission of Ralstonia solanacearum and quality of potato tubers during storage. Indian Phytopathology, 69(4s), 294-298. http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/71310