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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(7): 1298-1306
DOI: https://doi.org/10.20546/ijcmas.2018.707.155


Comparison of the PET Values with the Open Pan Evaporation and Computation of Crop Coefficients
Usha Durgam and A.S.R.A.S. Sastri
Department of Agrometeorology, Indira Gandhi Krishivishwavidyalaya, Raipur-492012 (C.G), India
*Corresponding author
Abstract:

The comparison of ETo estimates was done based on the weekly averages of PET using correlation coefficient and regression methods through different empirical methods namely Modified Penman, Blaney criddle, Christiansen, Thornthwaite, OpenPan, FAO penman method by using daily weather data for the period 1981-2012 (32 years) has collected for three stations of Chhatisgarh state. Atambikapur the highest correlation coefficient between FAO penman and Modified penman method is 0.998 and lowest in between Christiansen and Blaney criddle method is 0.918.At Jagdalpur and Raipur also having the highest correlation coefficient between FAO Penman and Modified Penman method is 0.999 and lowest correlation coefficient I in between Christiansen and Turc method is 0.85 or 0.84.Regarding regression with open Pan evaporation highest R2 values are Modified penman and Christiansen methods.


Keywords: Modified Penman. Crop coefficient, Regression analysis
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How to cite this article:

Usha Durgam and Sastri, A.S.R.A.S. 2018. Comparison of the PET Values with the Open Pan Evaporation and Computation of Crop Coefficients.Int.J.Curr.Microbiol.App.Sci. 7(7): 1298-1306. doi: https://doi.org/10.20546/ijcmas.2018.707.155