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Phenology, latent heat flux and evaporative fraction in sunflower under different photo-thermal environments

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Title Phenology, latent heat flux and evaporative fraction in sunflower under different photo-thermal environments
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Creator Gouranga Kar , Ashwani Kumar
 
Subject Sunflower, irrigation regimes, photo-thermal environments, phenological stages, latent heat flux ,
 
Description Not Available
Sunflower was grown in four different sowing dates with 3 irrigation regimes to create different
photo-thermal environments. Duration of important phenological stages and productivity were found to
be higher in winter sown crop which might be attributed to optimum photo-thermal environment. Crop
duration and productivity were reduced when temperature increased during summer and rainy seasons.
The day length was found to be influential at vegetative stage but no role was found in reproductive phase
of the crop. The latent heat flux varied with the crop growth stage and moisture availability ranged between
8.55 to 19.11 MJ m-2 day-1 in different years and cropping season. During pick growth stage (47-97 DAS),
ET consumed most of the energy, as a result evaporation fraction (EF) was higher during those days
which ranged between 80-93% under different sowing dates in the first year and between 70-95% in
different growth stages of second year.
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Date 2022-01-03T09:24:11Z
2022-01-03T09:24:11Z
2013-01-01
 
Type Article
 
Identifier Kar, G., Ashwani Kumar. 2013. Phenology, latent heat flux and evaporative fraction in sunflower under different photo-thermal environments. Vol. 15, Journal N oof . A2grometeorology 15 (2) : 91-97
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http://krishi.icar.gov.in/jspui/handle/123456789/68471
 
Language English
 
Relation Not Available;
 
Publisher Not Available