Abstract
The purpose of this study was to use field experimental data to evaluate the quantitative effects of drought stress on the rate of photosynthesis of cotton plants. Measurements were made on plants growing at various distances from a single line source. Relationships between daily sums of photosynthetic rates and noon values of leaf water potential (LWP), and between LWP and a drought stress factor computed in the model have been evaluated. The derived equation for the effect of drought stress on the rate of photosynthesis was used in a modified model, and it significantly improved the simulation results. The modified model was tested with data from four treatments of a drip irrigation experiment, which represent extreme soil moisture conditions during two irrigation periods. The simulation results also agreed closely with the experimental data.
| Original language | English |
|---|---|
| Pages (from-to) | 327-341 |
| Number of pages | 15 |
| Journal | Agricultural Systems |
| Volume | 42 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Jan 1993 |
| Externally published | Yes |
ASJC Scopus subject areas
- Animal Science and Zoology
- Agronomy and Crop Science