Low dose of UV-B radiation combined with CO2 enrichment promoteded the contentof TSS, sugar ,especially in Vc and lycopene of tomato fruits, enhanced the early yield oftomato. The best treatment that we sift was B3C.

• 补充低剂量的 UV-B 与 CO2 施肥复合作用可以提高番茄果实的可溶性固形物、总糖含量，使番茄红素和 Vc 的含量分别比对照提高 48%25和 43%25，改善了番茄果实的品质，提高番茄的前期产量，其中 B3C（UV-B1.；163kJ