| In the experiment, 20% Hua-iodine anti-stress ecological membranes were selected, and the comparative test of the disease and pest prevention effect of apply to different concentrations of Hua-iodine anti-stress ecological membranes were carried out in Qiaohua non-baggled apples. The results showed that the 20% Hua-iodine anti-stress ecological membranes had little difference on apple fruit surface protection, fruit surface coloring and light energy membranes, moreover it had strong of disease and pest prevention ability, and had more significant effects on enhance of apple tree's resistance to disease and pest, promoting growth and improved the internal quality of apple fruit. However, when the concentration is too high, it will affect the photosynthesis of apple leaves and apple fruit appearance quality to a certain extent, and will make apple lose its commodity property. |
