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Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis
The rice leaf folder, Cnaphalocrocis medinalis Guenée (Lepidoptera: Pyralidae) is a predominant foliage feeder in all the rice ecosystems. The objective of this study was to examine the development of leaf folder at 7 constant temperatures (18, 20, 25, 30, 32, 34, 35° C) and to estimate temperature...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
University of Wisconsin Library
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3835038/ https://www.ncbi.nlm.nih.gov/pubmed/24205891 http://dx.doi.org/10.1673/031.013.9601 |
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author | Padmavathi, Chintalapati Katti, Gururaj Sailaja, V. Padmakumari, A.P. Jhansilakshmi, V. Prabhakar, M. Prasad, Y.G. |
author_facet | Padmavathi, Chintalapati Katti, Gururaj Sailaja, V. Padmakumari, A.P. Jhansilakshmi, V. Prabhakar, M. Prasad, Y.G. |
author_sort | Padmavathi, Chintalapati |
collection | PubMed |
description | The rice leaf folder, Cnaphalocrocis medinalis Guenée (Lepidoptera: Pyralidae) is a predominant foliage feeder in all the rice ecosystems. The objective of this study was to examine the development of leaf folder at 7 constant temperatures (18, 20, 25, 30, 32, 34, 35° C) and to estimate temperature thresholds and thermal constants for the forecasting models based on heat accumulation units, which could be developed for use in forecasting. The developmental periods of different stages of rice leaf folder were reduced with increases in temperature from 18 to 34° C. The lower threshold temperatures of 11.0, 10.4, 12.8, and 11.1° C, and thermal constants of 69, 270, 106, and 455 degree days, were estimated by linear regression analysis for egg, larva, pupa, and total development, respectively. Based on the thermodynamic non-linear optimSSI model, intrinsic optimum temperatures for the development of egg, larva, and pupa were estimated at 28.9, 25.1 and 23.7° C, respectively. The upper and lower threshold temperatures were estimated as 36.4° C and 11.2° C for total development, indicating that the enzyme was half active and half inactive at these temperatures. These estimated thermal thresholds and degree days could be used to predict the leaf folder activity in the field for their effective management. |
format | Online Article Text |
id | pubmed-3835038 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | University of Wisconsin Library |
record_format | MEDLINE/PubMed |
spelling | pubmed-38350382013-11-26 Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis Padmavathi, Chintalapati Katti, Gururaj Sailaja, V. Padmakumari, A.P. Jhansilakshmi, V. Prabhakar, M. Prasad, Y.G. J Insect Sci Article The rice leaf folder, Cnaphalocrocis medinalis Guenée (Lepidoptera: Pyralidae) is a predominant foliage feeder in all the rice ecosystems. The objective of this study was to examine the development of leaf folder at 7 constant temperatures (18, 20, 25, 30, 32, 34, 35° C) and to estimate temperature thresholds and thermal constants for the forecasting models based on heat accumulation units, which could be developed for use in forecasting. The developmental periods of different stages of rice leaf folder were reduced with increases in temperature from 18 to 34° C. The lower threshold temperatures of 11.0, 10.4, 12.8, and 11.1° C, and thermal constants of 69, 270, 106, and 455 degree days, were estimated by linear regression analysis for egg, larva, pupa, and total development, respectively. Based on the thermodynamic non-linear optimSSI model, intrinsic optimum temperatures for the development of egg, larva, and pupa were estimated at 28.9, 25.1 and 23.7° C, respectively. The upper and lower threshold temperatures were estimated as 36.4° C and 11.2° C for total development, indicating that the enzyme was half active and half inactive at these temperatures. These estimated thermal thresholds and degree days could be used to predict the leaf folder activity in the field for their effective management. University of Wisconsin Library 2013-09-30 /pmc/articles/PMC3835038/ /pubmed/24205891 http://dx.doi.org/10.1673/031.013.9601 Text en © 2013 http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Article Padmavathi, Chintalapati Katti, Gururaj Sailaja, V. Padmakumari, A.P. Jhansilakshmi, V. Prabhakar, M. Prasad, Y.G. Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis |
title | Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis |
title_full | Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis |
title_fullStr | Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis |
title_full_unstemmed | Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis |
title_short | Temperature Thresholds and Thermal Requirements for the Development of the Rice Leaf Folder, Cnaphalocrocis medinalis |
title_sort | temperature thresholds and thermal requirements for the development of the rice leaf folder, cnaphalocrocis medinalis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3835038/ https://www.ncbi.nlm.nih.gov/pubmed/24205891 http://dx.doi.org/10.1673/031.013.9601 |
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