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采前用0、0.25％、0.5％、1.0％、1.5％Ca(NO_3)_2溶液及分别加入20×10~(-6)IAA后喷洒巨峰葡萄树冠和果穗。结果表明,所有钙处理均提高了果实品质,但以1.0％浓度综合效应较好,浆果耐压力和果柄耐拉力分别提高310g和100g;同时使浆果可溶性固形物浓度增加,果酸量下降,V_c含量显著上升;抑制了果实细胞膜相对透性(RMP)的变化;增加了果实各部位的钙素水平,全果总钙含量最高提高了1.79倍。加喷IAA后上述效应更为显著,但喷钙浓度以0.5％综合效果最佳。
The crown and ear of Kyoho grapes were sprayed with 0,0.25%, 0.5%, 1.0%, 1.5% Ca (NO_3) _2 solution and 20 × 10 ~ (-6) IAA respectively. The results showed that all of the calcium treatments improved the fruit quality, but the comprehensive effect was better at 1.0% concentration, and the stress tolerance and fruit stalk resistance increased by 310g and 100g respectively. At the same time, the concentration of soluble solids increased, The contents of V_c increased significantly; the change of relative membrane permeability (RMP) of fruit was inhibited; the level of calcium in various parts of fruit was increased, the total calcium content in whole fruit increased by 1.79 times. After spraying IAA, the above-mentioned effect is more significant, but the best effect is 0.5%.