A Phenological Model For The Soybean
Author(s)
A. Confalone, Y. Villacampa, J. A. Reyes, F. García-Alonso
& F. Verdú
Abstract
Predicting the time of soybean flowering is a critical step for crop management
practices and for the development of crop models. The main objective of this
study was to quantify the effect of the photoperiod and of temperature on the
duration of the different phenological periods (flowering, first pod and
physiological maturity), and to evaluate the response of a simple linear model for
predicting phenological periods in Azul, centre of Buenos Aires, Argentina. It
also used the methodology defined in the work of Summerfield et al.
(Measurement and prediction of flowering in soybeans in fluctuating field
environments. In: World Soybean Research Conference 4, 1989, Buenos Aires.
Argentina Soybeans Association, 1989. pp. 82-87) which generates families of
mathematical models with non-linear parameters and includes the study of linear
models to obtain other models. Finally the sensitivity of the models to the
variations produced by the experimental data was studied by applying the
methodology used in Summerfield et al., Verdu and Villacampa (A computer
program for a Monte Carlo analysis of sensitivity in equations of environmental
modelling obtained from experimental data. Advances in Engineering Software.
Vol. 33, Nº 6. pp.351-359, 2002) and Verdu and Villacampa (A Computational
algorithm for the multiple generation of nonlineal mathematical models and
stability study. Advances in Engineering Software. In Press). This allowed the
model to be selected according to the criteria.
Keywords: soybean, photoperiod, temperature, development, modelling,
stability.
Keywords
soybean, photoperiod, temperature, development, modelling,
stability.
Related Book
Other papers in this volume
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