Open AccessEvaluation of CERES-Rice model for the selected rice varieties of Kerala
Author(s) -
ARJUN VYSAKH,
B Ajithkumar,
A V R K Rao
Publication year - 2016
Publication title -
journal of agrometeorology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 11
eISSN - 2583-2980
pISSN - 0972-1665
DOI - 10.54386/jam.v18i1.913
Subject(s) - dssat , kharif crop , phenology , cultivar , sowing , mathematics , agronomy , grain yield , yield (engineering) , field experiment , crop , biology , materials science , metallurgy
A field experiment was conducted at Thrissur during kharif seasons of 2013 and 2014 using two rice varieties (Jyothi and Kanchana) and five dates of planting (June 5th, June 20th, July 5th, July 20th and August 5th). CERES-Rice model of DSSAT v 4.6 was used to simulate the phenology and grain yield of rice. Calibration of genetic coefficients was done with 6000 iterations and then the model was validated. The model could simulate the phenology of both the rice varieties with RMSE ranging between 0.89 to 1.92 for physiological maturity.The model overestimated the grain yield of rice cultivars which need further refinement.