The Relationship Between Biennial Fruiting And Contents Of Endogenous Hormones,Moisture,Nitrogen,Phosphorus And Potassium Of Ginkgo Biloba

In order to understand on-year or off-year fruiting and the contents of endogenous hormones, moisture, nitrogen, phosphorus and potassium of Ginkgo trees, found the intrinsic reasons which influence Gingko's biennial fruiting, formulates the effective chemistry regulation plan to solve the Gingko's biennial fruiting problem, this experiment takes on-year or off-year fruiting trees of Ginkgo Gui-86-1 which live 15 year as the experiment materials, uses the indirect enzyme-linked immuno-sorbent assays to determine endogenous hormones, uses the constant temperature drying method to determine moisture content, uses the micro kelvin fixation of nitrogen to determine the entire nitrogen, uses the molybdenum blue color method to determine the entire phosphorus, uses the flame photometry to determine the entire potassium. The contrast determination is carried on the different organs (floral bud, leaf bud, floral spur, annual and biennial foliage branch, floral leaf and foliage leaf) of on-year or off-year fruiting Ginkgo trees, the results are as follows:1, In the floral bud differentiation period and bud period, high content of...