关键词: 满天星, 微型繁殖, 生长协调性

Abstract: By using segments of the stems with buds of non-virus Gypsophila paniculata as explants, the growth harmonization of the young plants cultured in test tube has been studied. The results suggest that:in the primary culture, MS+BA_2.0mg/L+NAA_0.2mg/L mcdium shows the best result, the inductive rate of the lateral buds is the highest, the mean value is 1.8; in the subcuture, MS+BA_2.0mg/L+NAA_0.2mg/L medium in the primary generations may increase their rates to about 18~25 times; the best medium in the late generations is MS+BA_1.5mg/L+NAA_0.05mg/L which may increase their rates to about 40 times, harmonize their degrees of thicknesses, their intercode lengths and their callus sizes of the young plants, and make their growths harmonious; in the root reduction, 1/2MS+NAA_0.3mg/L medium may very easily induce their root developments, and help their root systems develop greatly.

Key words: GYPSOPHILA PANICULATA, MICROREPRODUCTION, GROWTH HARMONIZATION