Abstract The conventional air temperatures based Growing Degree Days (GDD) is an agrometeorological crop growth monitoring parameter. Using 1987–1988 data sets, the temporal profiles of NDVI/RVI (natural integration of non-linear crop agrometeorological growth processes) and GDD were regressed for two districts which had 91.63 to 93.91% of agricultural area under wheat. The maximum and mean air temperature based GDD were related with NDVI/RVI over the entire wheat growth cycle at 99% and 90–99% significance level, respectively. The minimum air temperature GDD, relevant only till milking stage, also had 95–99% significance level relationship with NDVI/RVI temporal profiles till milking stage. Regression upto late flowering stage gave better correlations for maximum/minimum/mean temperature GDD and NDVI/RVI. For regression over the entire crop growth cycle the NDVI was better correlated with GDD than RVI.
NOAA/AVHRR vegetation indices as district level wheat growth indicators
Advances in Space Research ; 13 , 5 ; 249-252
1993-01-01
4 pages
Article (Journal)
Electronic Resource
English
NOAA-AVHRR Vegetation Indices as District Level Wheat Growth Indicators
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