Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)

Qualitative and quantitative models were developed for damage due to podfly (Melanogromyza obtusa) on late maturing pigeonpea [Cajanus cajan (L.) Millsp] in Kanpur. Historical data from 1987-88 to 2009-10 on per cent pod damage and weekly weather variables were considered for model fitting. Weather...

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Main Authors: RANJANA AGRAWAL, AMRENDER KUMAR, S K SINGH
Format: Article
Language:English
Published: Indian Council of Agricultural Research 2014-02-01
Series:The Indian Journal of Agricultural Sciences
Subjects:
Online Access:https://epubs.icar.org.in/index.php/IJAgS/article/view/38034
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author RANJANA AGRAWAL
AMRENDER KUMAR
S K SINGH
author_facet RANJANA AGRAWAL
AMRENDER KUMAR
S K SINGH
author_sort RANJANA AGRAWAL
collection DOAJ
description Qualitative and quantitative models were developed for damage due to podfly (Melanogromyza obtusa) on late maturing pigeonpea [Cajanus cajan (L.) Millsp] in Kanpur. Historical data from 1987-88 to 2009-10 on per cent pod damage and weekly weather variables were considered for model fitting. Weather based indices were generated which were used as explanatory variables. Models were validated on subsequent periods (2010-11 and 2011-12) data and found to be satisfactory for both qualitative (epidemic/non-epidemic year) and quantitative (extent of damage)forewarning of damage due to podfly in late pigeonpea at Kanpur.
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spelling doaj.art-3d9707cb180a42fcb0922ba0f8c821ca2023-09-29T04:46:57ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192014-02-0184210.56093/ijas.v84i2.38034Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)RANJANA AGRAWAL0AMRENDER KUMAR1S K SINGH2Indian Agricultural Statistics Research Institute, New Delhi 110 012Indian Agricultural Statistics Research Institute, New Delhi 110 012Indian Agricultural Statistics Research Institute, New Delhi 110 012Qualitative and quantitative models were developed for damage due to podfly (Melanogromyza obtusa) on late maturing pigeonpea [Cajanus cajan (L.) Millsp] in Kanpur. Historical data from 1987-88 to 2009-10 on per cent pod damage and weekly weather variables were considered for model fitting. Weather based indices were generated which were used as explanatory variables. Models were validated on subsequent periods (2010-11 and 2011-12) data and found to be satisfactory for both qualitative (epidemic/non-epidemic year) and quantitative (extent of damage)forewarning of damage due to podfly in late pigeonpea at Kanpur.https://epubs.icar.org.in/index.php/IJAgS/article/view/38034ForecastingLogistic ModelPodflyWeather based regression model
spellingShingle RANJANA AGRAWAL
AMRENDER KUMAR
S K SINGH
Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)
The Indian Journal of Agricultural Sciences
Forecasting
Logistic Model
Podfly
Weather based regression model
title Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)
title_full Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)
title_fullStr Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)
title_full_unstemmed Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)
title_short Forecasting podfly (Melanogromyza obtusa) in late pigeonpea (Cajanus cajan)
title_sort forecasting podfly melanogromyza obtusa in late pigeonpea cajanus cajan
topic Forecasting
Logistic Model
Podfly
Weather based regression model
url https://epubs.icar.org.in/index.php/IJAgS/article/view/38034
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