Year 2019, Volume 25, Issue 2, Pages 137 - 146 2019-06-05

Mathematical Modelling of Crop Water Productivity for Processing Tomato

Hayrettin Kuşçu [1]

13 24

Crop water productivity models (CWPMs) are of great importance in evaluating different irrigation programs. The mean goal of the study was to evaluate the performance of the Jensen, Minhas, Blank, Stewart and Rao CWPMs in predicting fruit yield of processing tomato. Field experiments were conducted for two consecutive growing seasons. The soil water stress sensitivity indices of the CWPMs were determined using experimental data from the second crop growing season. Yields simulated by the CWPMs were compared with the experimental data for the first season. The sensitivity indices for the crop growth stages were taken into account as appropriate weights of the soil water sensitivity of the vegetative, flowering, yield formation and ripening stages of the processing tomato crop. The results give evidence that processing tomato is much more sensitive to soil water stress during flowering and yield formation stages whereas the adverse impact of water stress on yield is very limited at vegetative stage. The highest modelling efficiency (0.96) between field-measured and simulated yield by the model, the lowest arithmetic mean of errors (0.04), mean absolute deviation (0.07), mean square error (0.02), absolute percentage error (12.76), root mean square error (0.15) and coefficient of residual mass (0.05) were achieved by Minhas model and followed by Rao model based on same parameters of statistical analyses. Both the Minhas and the Rao models with their soil water stress sensitivity indices generated for the different growth stages obtained in this study are recommended for the processing tomato in the sub-humid environments.

Deficit irrigation, Relative evapotranspiration, Relative yield, Stress sensitivity indices
  • Kuşçu H, Turhan A & Demir A O (2014). The response of processing tomato to deficit irrigation at various phenological stages in a sub-humid environment. Agric Water Manage 133: 92–103
Primary Language en
Subjects Science
Journal Section Makaleler
Authors

Author: Hayrettin Kuşçu (Primary Author)
Institution: Uludag University
Country: Turkey


Bibtex @research article { ankutbd395133, journal = {Journal of Agricultural Sciences}, issn = {}, eissn = {2148-9297}, address = {Ankara University}, year = {2019}, volume = {25}, pages = {137 - 146}, doi = {10.15832/ankutbd.395133}, title = {Mathematical Modelling of Crop Water Productivity for Processing Tomato}, key = {cite}, author = {Kuşçu, Hayrettin} }
APA Kuşçu, H . (2019). Mathematical Modelling of Crop Water Productivity for Processing Tomato. Journal of Agricultural Sciences, 25 (2), 137-146. DOI: 10.15832/ankutbd.395133
MLA Kuşçu, H . "Mathematical Modelling of Crop Water Productivity for Processing Tomato". Journal of Agricultural Sciences 25 (2019): 137-146 <http://dergipark.org.tr/ankutbd/issue/45612/395133>
Chicago Kuşçu, H . "Mathematical Modelling of Crop Water Productivity for Processing Tomato". Journal of Agricultural Sciences 25 (2019): 137-146
RIS TY - JOUR T1 - Mathematical Modelling of Crop Water Productivity for Processing Tomato AU - Hayrettin Kuşçu Y1 - 2019 PY - 2019 N1 - doi: 10.15832/ankutbd.395133 DO - 10.15832/ankutbd.395133 T2 - Journal of Agricultural Sciences JF - Journal JO - JOR SP - 137 EP - 146 VL - 25 IS - 2 SN - -2148-9297 M3 - doi: 10.15832/ankutbd.395133 UR - https://doi.org/10.15832/ankutbd.395133 Y2 - 2018 ER -
EndNote %0 Journal of Agricultural Sciences Mathematical Modelling of Crop Water Productivity for Processing Tomato %A Hayrettin Kuşçu %T Mathematical Modelling of Crop Water Productivity for Processing Tomato %D 2019 %J Journal of Agricultural Sciences %P -2148-9297 %V 25 %N 2 %R doi: 10.15832/ankutbd.395133 %U 10.15832/ankutbd.395133
ISNAD Kuşçu, Hayrettin . "Mathematical Modelling of Crop Water Productivity for Processing Tomato". Journal of Agricultural Sciences 25 / 2 (June 2019): 137-146. https://doi.org/10.15832/ankutbd.395133