Journal ID : AMA-06-02-2022-11104
[This article belongs to Volume - 53, Issue - 02]
Total View : 438

Title : Evaluation of wheat varieties and their validation through CERES-Wheat model under lower foothills of Shivalik range of N-W Himalayas

Abstract :

Field experiments were conducted at Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, J&K UT, India during rabi (winter) season of 2015-16 and 2016-17 with 3 wheat varieties (HD 2967, RSP 561 and WH 1105), 3 sowing environments/dates (25th October-early, 14th November-normal and 4th December-late) and 3 N-levels (100, 125 and 150 kg ha-1) replicated thrice in split split plot design under sub-tropical irrigated conditions of lower foot hills of Shivalik ranges of N-W Himalayas. The objectives of the study were to evaluate the performance of different wheat varieties and their calibration and validation through CERES-Wheat model. The genetic coefficients for three wheat varieties were calibrated and validated with the experimental data. Variety WH 1105 registered higher grain and biological yield followed by HD 2967 and RSP 561. Evaluation with the experimental data showed that performance of CERES-Wheat model was reasonable as indicated by fairly accurate simulations of crop phenology, grain yield, biological yield and various yield attributing parametres against measured data. The values of various model performance indicators like R2, RMSE, nRMSE, MPD, MAE, d-stat, EF and r were in good and excellent ranges.

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