Effect of Sodium Hypochlorite, Sodium Sorbate and Calcium Propionate Solutions on the Chestnut

The quadratic orthogonal rotation design with 3 factors was used to study the effect of sodium hypochlorite, sodium sorbate and calcium propionate solutions on the chestnut, and to establish the function model with 3 factors. The analysis on this model showed that the order of the effect of 3 factors was as follows: Calcium propionate > Sodium sorbate >Sodium hypochlorite; In this test, for getting over 55% good-fruit rate, respectively, the optimum sodium hypochlorite concentration was 11.4％－19.5％, sodium sorbate concentration was 2.67％－39.9％, calcium propionate concentration was 1.09％－2.71％.