Abstract:

The objective is establishing the foundation for Capparis masakai ex-situ protection, propagation and utilization effectively by studying on the methods of seed breeding and layering. The facts of the seed pretreatment, seed storage, seed sowing and the different hormones, hot-water, and substrates on seed germination have been studied. At the same time, the technologies of common layering and air layering were also researched. The results showed that the seeds of Capparis masaikai belong to moderate recalcitrant ones, which lost their activity after about 72 days leaving mother plants. The dry seeds partly lowest or completely lost their activity drying in the sun or by oven, respectively. However, the seeds in nature conditions have high activity. The best sowing method was that the fresh seeds are sown on the substrate (red loam:coconut residuum=1:1) in November or December. The seeds are cracked or pretreated with hormones could improve germination rate, and the best hormone was 10 mg/L GA3 which made seeds germinate at least 5 days in advance. Seeds soaked into hot-water above 65℃ under 100℃ 4 hours also could increase germinate rate. The better layering method is air layering. The research has found out the better methods for seed and branch propagation of Capparis Masaikai, and it is useful for the plant ex-situ protection and small-scale propagation.