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             S1. 半年生苗ꎻ S2. 两年生苗ꎻ S3. 三年生苗ꎮ S. 茎中段横切面ꎻ CP. 茎根交界处横切面ꎻ BS. 根顶膨大处横切面ꎻ R. 主根中部横切
             面ꎻ LR. 侧根上距离主根 1 cm 的部位横切面ꎮ
             S1. Half ̄year seedlingꎻ S2. Two ̄year seedlingꎻ S3. Three ̄year seedling. S. Cross ̄section from the middle part of the stemꎻ CP. Cross ̄section
             from the connecting point of the stem and rootꎻ BS. Cross ̄section from the basal swelling part of the rootꎻ R. Cross ̄section from the middle part
             of the main rootꎻ LR. Cross ̄section of the part of a lateral root 1 cm away from the main root.
                                    图 2  蒜头果幼苗不同部位横切面的淀粉含量与分布特征
             Fig. 2  Starch contents and distribution characteristics of cross ̄sections from different parts of Malania oleifera seedlings
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