Abstract:

Trial of 10 early spring flowering plants of Baoding as materials, determined the petals of different stages of plant supercooling point used of the artificial cream boxes, after low temperature treatment using the artificial cream boxes, to measure the electrolyte leakage, combined with Logistic equation to calculate the half-lethal temperature, browning rate statistics, which sort of their cold hardiness. The results showed that: cold hardiness from low to high Amygdalus triloba, Amygdalus persica, Forsythia viridissima, Amygdalus triloba f. multiplex, Chaenomeles speciosa, Magnolia denudata, Amygdalus davidiana, Forsythia suspensa, Rhododendron mucronulatum, Jasminum nudiflorum.