Responses of Lindera communis seeds to induced water stress in the seed germination stage

摘要

In this paper, the treatment of water stress to Lindera communis seeds were made through polyethylene glycol (PEG) with various densities. The test showed that with a decrease of water potential, germination rate increased at the temperate water stress, but decreased in total. When polyethylene glycol (PEG) density rose to 15%, germination speed, germination exponent, vitality exponent, sprout length all decreased to varying degrees. When polyethylene glycol (PEG) density rose to 25%, the entire index was restrained intensely. The results showed that Lindera communis has a certainty drought tolerance at the temperate water stress.