Infection efficiency model for assessment of temperature rise impact on leaf blast infection in rice under climate change scenario

Authors

  • K. VISWANATH*, TARU SHARMA, SHALINI SAXENA, P. NAGAMANI and P. SINHA

Keywords:

Rice, Leaf blast, Lesion development rate model, Climate change

Abstract

Under climate change scenario, effect of temperature rise on leaf blast (Magnaporthe oryzae) under climate change scenario in tropical rice-agro ecosystems has become an important component of adaptation strategy. Infection efficiency for leaf blast was modeled in terms of temperature response on lesion development rate. Rate of lesion development or infection efficiency, as reciprocal of median time (h-1) for 50 % of lesion development, characteristically increased with increase in temperature up to 27.5°C and then declined to towards zero at about 34.1°C. Inflection point at 20.9°C, a local maximum at 27.5°C along with lower and upper temperature limits facilitated to account temperature rise impact on blast infection for every small increase (even at 0.1°C) in temperature. Temperature dependent infection efficiency model for leaf blasmay be used for the essenssment of temperature impact.

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

SHALINI SAXENA, P. NAGAMANI and P. SINHA, K. V. T. S. (2016). Infection efficiency model for assessment of temperature rise impact on leaf blast infection in rice under climate change scenario. Indian Phytopathology, 69(4s), 255-258. http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/71298