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SPECTRAL DATA BASED VEGETATION INDICES TO CHARACTERISE CROP GROWTH PARAMETERS AND RADIATION INTERCEPTION IN BRASSICA

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Title SPECTRAL DATA BASED VEGETATION INDICES TO CHARACTERISE CROP GROWTH PARAMETERS AND RADIATION INTERCEPTION IN BRASSICA
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Creator GOURANGA KAR AND N.V.K. CHAKRA VARTY
 
Subject intercepted photosynthetically active radiation, spectral parameters, vegetation indices.
 
Description Not Available
Four spectral data based vegetation indices viz., infra-red/red (IR/R) ratio, normalized difference (N.D.),
greenness index (GNI) and brightness index (BNI) were derived to characterise leaf area index, above ground
biomass production and intercepted photosynthetically active radiation in Brassica oilseed crop. It was found
from correlation study among different spectral indices, plant growth parameters and radiation interception
that there was strong relationship between infrared/red and normalized difference with green area index for
all the three Brassica cultivars whereas these spectral were not significantly correlated with above ground
biomass. On the other hand, the brightness and greenness indices were closely correlated with above ground
dry biomass as compared to infrared/red ratio and normalized difference. All the four spectral indices were
correlated with interecepted photosyntheticaly active radiation (IPAR). The best fit equations relating them
were derived, which can be incorporated in the algorithms of crop growth simulation model to estimate plant
growth parameters and radiation interception using spectral indices.
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Date 2022-01-03T11:00:28Z
2022-01-03T11:00:28Z
2001-01-01
 
Type Article
 
Identifier Kar, G., Chakravarthy, N.V.K. 2001. SPECTRAL DATA BASED VEGETATION INDICES TO CHARACTERISE CROP GROWTH PARAMETERS AND RADIATION INTERCEPTION IN BRASSICA
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http://krishi.icar.gov.in/jspui/handle/123456789/68478
 
Language English
 
Relation Not Available;
 
Publisher Not Available