Vol. 7, Issue 4 (2018)

Author(s):
SB Satpute, S Bandyopadhyay and PH Ulemale

Abstract:
The present investigation was carried out during Kharif season of 2012 and 2013 to investigate the CERES 4.5v model validations for rice at different dates of transplanting and different varieties. Treatment consisted of six varieties viz. IET-6223, IET-14461, MTU-1010, IET-17430, MTU-7029 & MTU-1075 and five dates of transplanting viz. 01st July; 10th July; 20th July; 30th July and 09th August. The Experiment was laid out in split plot design with 3 replications. In all the dates of transplanting with respect to cv. IET-6223, IET-14461, MTU-1010 and G.B.-1; simulated days to panicle initiation, anthesis and total physiological maturity were in good conformity with observed values. The simulation modeling was subsequently validated against observed data from field experiment. The model suggested that, in 10th July transplanting in cv. IET-6223, IET-14461, MTU-1010, G.B.-1; the simulated days to panicle initiation were in good conformity with observed values. IET-14461 showed good agreement between observed value and simulated with low RMSE value as in case of other cultivars (0.0 to -1.1%)