Abstract: In order to prevent the fertility obstacle and improve the resistance to low light stress of tomato, the formulas mainly in the calcium element had been developed and screened which increased the yields and fruit qualities. In this experiment the cultivated tomato cultivar Liaoyuanduoli as test materials, plants at the six-leaf stage were sprayed with an equal volume of calcium formulas by different times under low light condition, with sprayed distilled water in nature and low light (427-516 μmol/(m²·s)) as control.Results showed that formulas application reduced the adult plant's length and controlled the growth of plants, increased the seeding index and the activities of SOD, POD and CAT, reduced the MDA content of tomato leaves, and increased the fruit qualities and yields of tomato. The use of formula content of tomato leaves, and increased the fruit qualities and yields of tomato. The use of formula (P1) in tomato plants treated the weak light tolerance coefficient significantly increased 23.6%, the dry matter accumulation and seedling index than the weak light control (CL) increased by 39.0% and 57.7%. The formula one (P1) in the control of the weak light resistance of tomato effect is the best.

Key words: Tomato, Low light intensity, Calcium formulation, Photosynthesis characteristic

CLC Number: 

• S641.2