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Simulated yield advantages of extending post-flowering development at the expense of a shorter pre-flowering development in soybean |
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| Authors: | Adriana G Kantolic Jorge L Mercau Gustavo A Slafer Víctor O Sadras |
| Institution: | 1. Departamento de Producción Vegetal, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, C1417DSE Buenos Aires, Argentina;2. Institució Catalana de Recerca i Estudis Avançats (ICREA), Department of Crop and Forest Sciences, University of Lleida, Centre Udl-IRTA, Av. Rovira Roure 191, 25198 Lleida, Spain;3. South Australian Research & Development Institute, School of Agriculture, Food & Wine, The University of Adelaide, Waite Campus, G.P.O. Box 397, Adelaide 5001, Australia |
| Abstract: | Field experiments with soybean demonstrated that the extension of photoperiod after flowering increases both the duration of the post-flowering phase and the production of seeds. These results suggest that cultivars with increased duration of the post-flowering phase could be selected to improve soybean yields. The aims of this paper were to: (a) evaluate the ability of the CROPGRO-soybean model to reproduce the experimental relationships between seed number and duration of the critical phase between first and last pod, and (b) assess the putative benefits and trade-offs of variable durations of the critical phase in a south–north transect in the Pampas of Argentina. |
| Keywords: | Soybean Glycine max Simulation Phenology Post-flowering duration Yield |
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