Studies on Phenology and Yield of Different Seedling Types of Bletilla striata

The phenology of bulb seedlings and seed seedlings of Bletilla striata was observed and the yield of the two types of seedlings under different planting densities were investigated. The results showed that the budding and leaf spreading stages of the two propagation types of Bletilla striata were basically the same. There was no significant differences in the duration time of budding, leaf spreading, flowering and fruit stages between two different seedling types, but there was a big difference at the yellow-withered stage. Different seedling types and planting densities had significant effects on the yield of Bletilla striata. The yield of Bletilla striata planted with bulbs was significantly higher than that of seed seedlings. In this experiment, the highest yield was obtained when the row spacing of seed plants was 15 cm × 15 cm. Under better water and fertilizer conditions, the yield could be increased by appropriate close planting.