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  1. KRISHI Publication and Data Inventory Repository
  2. Horticultural Science A7
  3. ICAR-Central Institute of Sub-tropical Horticulture J3
  4. HS-CISH-Publication
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Please use this identifier to cite or link to this item: http://krishi.icar.gov.in/jspui/handle/123456789/54237
Title: Humid thermal ratio as a tool to assess mango thrips dynamics under subtropical climatic condition
Other Titles: Not Available
Authors: Gundappa
Tarun Adak
Prabhat Kumar Shukla
ICAR Data Use Licennce: http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf
Author's Affiliated institute: ICAR::Central Institute of Sub-tropical Horticulture
Published/ Complete Date: 2016-04-19
Project Code: Not Available
Keywords: Humid thermal ratio
mango thrips
Regression analysis
Seasonal abundance
Publisher: Triveni Enterprises, Lucknow (India)
Citation: 8. Gundappa, Tarun Adak and PK Shukla (2016).Humid Thermal Ratio as a tool to assess mango thrips dynamics under subtropical climatic condition. Journal of Environmental Biology 37: 1239-1245.
Series/Report no.: Not Available;
Abstract/Description: Weather factors play an important role in occurrence of thrips on mango. Keeping this in view, the present investigation was set out to assess the thrips population dynamics using humid thermal index, based on datasets from 20 fixed plot mango orchards in and around Lucknow. Results revealed that the highest thrips population of 3.36/panicle was recorded in Kakori (Fixed plot -I) orchard, which was followed by 2.4 and 2.06 at CISH III block and Kannar (Fixed II) respectively during the year 2013, whereas corresponding values were 4.05, 3.08 and 2.50 at CISH Block III, CISH Bolck II and Allupur respectively during 2014. The frequency distribution explained that the thrips population of <2 /panicle was widely distributed with highest frequency level. The humid thermal ratio ranged from 1.44 to 2.27 and 1.20 to 2.34 during 2013 and 2014 respectively across standard meteorological weeks. The peak thrips incidence was 6.18 /panicle during 2013 and 4.67/panicle during 2014, the corresponding values of humid thermal ratio were 1.47 and 2.05 respectively. The positive correlation was found between humid thermal ratio and thrips population dynamics during 2013 (r = 0.52 * * ) and 2014 (r = 0.72 * * ). Pooled data showed significant and positive correlation between humid thermal ratio and thrips population. Pooled analysis had explained up to 94 per cent of variation with exponential model (Thrips population = 0.007e2.778HTR, R2 = 0.94 * * ) and suggested that this index might be used in understanding the mango thrips population dynamics under subtropical environmental condition.
Description: Not Available
ISSN: Not Available
Type(s) of content: Research Paper
Sponsors: Not Available
Language: English
Name of Journal: Journal of Environmental Biology
NAAS Rating: 6.78
Volume No.: 37
Page Number: 1239-1245
Name of the Division/Regional Station: Crop Protection
Source, DOI or any other URL: Not Available
URI: http://krishi.icar.gov.in/jspui/handle/123456789/54237
Appears in Collections:HS-CISH-Publication

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