Due to increasing demand for strawberries (Fragaria × ananassa Duch.) and their health associated benefits, strawberry production has expanded within the United States. Within Texas, strawberry cultivation remains a minor crop (currently less than 162 ha dedicated to strawberry production). However, the state's vast geographic size and diverse climatic conditions present significant opportunities for expanding strawberry production into traditionally non-producing regions. Despite potential for expanding strawberry production, Texas strawberry growers are faced with a number of production challenges. This study aimed to evaluate effects of different shade levels upon gas exchange and production of two strawberry cultivars, ‘Camino Real’ and ‘Albion’ in Lubbock, Texas. Bare root strawberries were planted Fall of 2021 under three shade treatments: Full sun (no shade), 70% full sun, and 50% full sun. Each treatment was applied to 16 plants of each cultivar, with three replications of each treatment. During fall, winter, and early spring, all plants were grown within low plastic tunnels. During the spring production season shade treatments maintained lower air and soil temperatures when compared to the full sun treatment. Light levels were reduced under shade treatments leading to greater leaf gas exchange rates under full sun growing conditions. Marketable yield and berry number for each plant were greater for 'Camino Real' compared to 'Albion', with 'Camino Real' producing twice the yield. Among shade treatments, the 70% sunlight treatment resulted in the greatest marketable yield and berry number for each plant. The lowest yield and berry number for each plant was observed under full sun conditions. Results suggest the interaction between plant cultivar and sun exposure plays a crucial role in determining strawberry yield and quality. Findings highlight the importance of selecting appropriate shade levels and cultivars to optimize strawberry production within demanding environmental conditions.
