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无病毒草莓丰香（Ｆｒａｇａｒｉａ ａｎａｎａｓｓａ Ｄｕｃｈ．ｃｖ．Ｆｅｎｇｘｉａｎｇ）离体试管苗具有光合能力，但其光合作用受培养基中的蔗糖浓度、培养光强及培养容器内ＣＯ２浓度的影响。在无蔗糖或含有较低浓度蔗糖的培养基上和较高的培养光强下生长的试管苗，其净光合速率（Ｐｎ）、光饱和点和表观量子效率（ＡＱＹ）较高，光补偿点较低。生长有小苗的培养容器内的ＣＯ２浓度只有７０－１２０μｌ·ｌ－１，远远低于大气的ＣＯ２浓度。随着向培养容器中通入ＣＯ２浓度的增加，试管苗的Ｐｎ增加。培养６周试管苗的Ｐｎ高于培养３周的试管苗，培养容器内的ＣＯ２浓度６周培养的低于３周。
Fragaria ananassa Duch.cv.Fengxiang has in vitro photosynthetic capacity, but its photosynthesis is affected by the sucrose concentration in the medium, the light intensity and the CO2 concentration in the culture vessel. The results showed that the photosynthetic rate (Pn), light saturation point (AQY) and apparent quantum yield (AQY) of test-tube seedlings grown on medium without sucrose or sucrose with lower concentration and higher light intensity were higher, The point is lower. Growing seedlings culture container CO2 concentration of only 70-120μl·l-1, far below the atmospheric CO2 concentration. As the concentration of CO2 permeated into the culture vessel increased, the Pn of plantlets increased. The Pn of the 6-week-old test-tube seedlings was higher than that of the 3-week-old test tube seedlings, and the CO2 concentration in the cultivating container was less than 3 weeks after 6 weeks of culture.