KRISHI
ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT
(An Institutional Publication and Data Inventory Repository)
"Not Available": Please do not remove the default option "Not Available" for the fields where metadata information is not available
"1001-01-01": Date not available or not applicable for filling metadata infromation
"1001-01-01": Date not available or not applicable for filling metadata infromation
Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/48705
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | N.R. Prasannakumar | en_US |
dc.contributor.author | B.S. Rajendra Prasad | en_US |
dc.contributor.author | P. Shivarama Bhat | en_US |
dc.date.accessioned | 2021-07-19T07:35:00Z | - |
dc.date.available | 2021-07-19T07:35:00Z | - |
dc.date.issued | 2019-10-01 | - |
dc.identifier.citation | Not Available | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/48705 | - |
dc.description | Not Available | en_US |
dc.description.abstract | Spatial distribution and sequential sampling plan for chilli thrips, Scirtothrips dorsalis Hood were analyzed through Taylor’s power law (TPL) and Iwao’s mean crowding regression (IMC) for rainy and summer seasons during 2016–17 on chilli crop. The results revealed that the mean number of thrips in the field was low (1.07 thrips/plant) at early crop growth stages (32 days after transplanting (DAT)) and increased gradually with a peak (21.53 thrips/plant) at 56 DAT. Inconsistency in the mean number of thrips with shifting variance was noticed. The variance of thrips population increased with increase in its density with the best variance (122.41) observed at 56DAT. Samples of thrips showed variance tomean ratio (S2/X), Lloyd’s patchiness index (X*/X), as well as Morisita Index more than one, revealing clumped distribution. The data on thrips population was best fit to TPL (a = 0.184, b = 1.27, R2 = 0.66) and the IMC (α = 0.93, β = 1.14, R2 = 0.94). Larger variability in sample size vis-a-vis mean population density was also achieved at 10 and 20% precision levels. Considering TPL parameters, the decisive lines of sequential sampling for S. dorsalis was chosen at d = 13n ± 8.07√n. The sequential sampling plan will thus help in reducing the costs for an effective and efficient management of S. dorsalis on chilli | en_US |
dc.description.sponsorship | ICAR | en_US |
dc.language.iso | English | en_US |
dc.publisher | Springer | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | Thrips . Scirtothrips dorsalis . Sampling . Sample size . Taylor’s power law | en_US |
dc.title | Distribution pattern and sequential sampling plan for chilli thrips, Scirtothrips dorsalis Hood (Thripidae: Thysanoptera) | en_US |
dc.title.alternative | Not Available | en_US |
dc.type | Journal | en_US |
dc.publication.projectcode | HORTIIHRCIL2015 (060): 08 | en_US |
dc.publication.journalname | International Journal of Tropical Insect Science | en_US |
dc.publication.volumeno | Not Available | en_US |
dc.publication.pagenumber | Not Available | en_US |
dc.publication.divisionUnit | Crop protection | en_US |
dc.publication.sourceUrl | 10.1007/s42690-019-00062-1ailable | en_US |
dc.publication.authorAffiliation | ICAR::Indian Institute of Horticultural Research | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.journaltype | International | en_US |
dc.publication.naasrating | 6.54 | en_US |
dc.publication.impactfactor | 0.6 | en_US |
Appears in Collections: | HS-IIHR-Publication |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Chilli thrips paper.pdf | 857.12 kB | Adobe PDF | View/Open |
Items in KRISHI are protected by copyright, with all rights reserved, unless otherwise indicated.