Abstract:

The purpose is to explore the reason why the germination rate of spring wheat in Xiangride Area, Dulan County (in high altitude Qaidam Basin) was significantly lower than that of Ledu Area (low altitude) in the East of Qinghai. In this experiment, four wheat varieties from the two areas were used. The TP germination paper method was used to simulate field germination environment by artificial climate chamber. The α-amylase activity was measured and compared during the 7^th day germination period. The germination rate of wheat seeds in low altitude area was significantly higher than that in high altitude area, the α-amylase activity of seeds of the four varieties in Ledu Area was significantly higher than that in Xiangride Area, which could be one of the reasons that the germination rate of wheat seed in Xiangride area was lower than that in Ledu area. The germination rate of wheat seeds is affected by a series of factors, such as moisture content, grain maturation stage and storage condition. At the same time, a series of enzymes are needed in wheat germination, among which α-amylase plays an important role in wheat germination.

Key words: Qinghai Province, Wheat, Germination Rate, α-amylase, Enzyme Activity