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ARS Home Midwest Area Wooster, Ohio Application Technology Research Research





- Boldt, Jennifer
- Marzano, Shin-Yi
- Crop Protection & Quarantine (304)
- Crop Production (305)

Research Project: **Location:
                            Application Technology Research** Project Number: 5082-21000-001-024-S
                        
                        Project Type: Non-Assistance Cooperative Agreement Start Date: Aug 1, 2019
                        
                        End Date: Jul 31, 2023 **Objective:**
                        
                        Evaluate changes in leaf angle in response to elevated temperature and carbon dioxide concentration. **Approach:**
                        
                        Initial studies with tomato (Solanum lycopersicum) have shown an increase in leaf angle (hyponasty) when exposed to elevated temperature and carbon dioxide concentration.  First, we will investigate the prevalence of this phenomenon in additional species and determine if its occurrence is related to leaf type (simple or compound) or family.  Second, we will investigate if this phenomenon occurs only during specific stages of growth and development (e.g., seedling, vegetative, flowering, and/or fruiting).  Third, we will evaluate the impact of light intensity, quality, and direction on the severity of the hyponasty response.


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