This study investigated the differences in light intensity, photosynthetic efficiency, and growth characteristics of paprika plants cultivated in a semi-closed greenhouse covered with low-iron diffuse glass (SG-LDG) and a conventional greenhouse covered with low-iron regular glass (CG-LRG). There was no significant difference in light intensity between the SG-LDG and CG-LRG from the apical meristem to below 100 cm. However, below 150 cm, the SG-LDG showed higher light intensity than the CG-LRG. The light response curve and atmospheric CO₂ response(A-C_a) curve, which represent photosynthetic efficiency, were not significantly affected by crop canopy differences between the two greenhouses during the early cultivation stage. However, after 12 weeks of planting, SG-LDG showed higher photosynthetic efficiency. The J_max and V_cmax values showed no differences between the plants in the two greenhouses until 4 weeks after planting. 12 weeks after planting, plants in SG-LDG showed higher J_max and V_cmax values than those in CG-LRG. All the growth characteristics of plants cultivated in SG-LDG were superior to those of plants cultivated in CG-LRG. Therefore, the improvement in light intensity and photosynthetic efficiency at the lower positions of plants in SG-LDG is considered to have a positive impact on crop quantity and quality.

本研究调查了低铁漫射玻璃半封闭温室（SG-LDG）和低铁普通玻璃温室（CG）栽培的辣椒植物在光照强度、光合效率和生长特性方面的差异。 -LRG）。SG-LDG和CG-LRG从顶端分生组织到100 cm以下的光强度没有显着差异。然而，在 150 cm 以下，SG-LDG 显示出比 CG-LRG 更高的光强度。代表光合效率的光响应曲线和大气CO ₂响应(AC _a )曲线在栽培初期并没有受到两个温室作物冠层差异的显着影响。然而，种植12周后，SG-LDG表现出更高的光合效率。直到种植后 4 周，两个温室中的植物之间的J _max和 V _{cmax值才显示出差异。}种植后 12 周，SG-LDG 中的植物表现出比 CG-LRG 中更高的 J _max和 V _cmax值。SG-LDG中栽培的植物的所有生长特性均优于CG-LRG中栽培的植物。因此，SG-LDG中植物下部位置的光强度和光合效率的提高被认为对作物的数量和质量产生积极的影响。