| Egg-fruit Eggplant,which is also named as gold silver fruit and ornamental eggplant, is a kind of precious ornamental vegetables germplasm resource. It grows excessively in the plant height and figure under natural conditions, so plastic operation at the regular intervals managing must be done. The tradition flowers and plants dwarfing technology, such as top removal and bending operation, mostly take a lot of time and work. The economic effect is not so good, so they are unsuitable for large-scale and industrialized production. Effects of foliage spraying of PP333 and CCC on the dwarfing effect and main ornamental characters were investigated in this experiment, whose main results are as follows:(1)Both of the plant-growth retardants could effectively control the main plant characters to a different degree. They could inhabit the plant growth, decrease the length of main stem and ramification, diminish the leaves and make the fruit round. The effect of PP333 treatment in ornamental evaluation is better than that of CCC, and PP333 at 400 mg/L produces optimal effect;(2)According to the golden section theory, the effect of PP333 treatment make the close ratio of main stem/plant height and crown/plant height to golden section, so the ornamental value of plant figure improve but the round fruit decrease the ornamental value of fruit;(3)The comprehensive evaluation using the gray system theory shows: the grey relationship degree of PP333 treatment whole is better than that of CCC, and the PP333 at 400 mg/L produces the biggest one: 0.897, which is the closest one to ideal.
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