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以君迁子和美国柿为对照,在果实发育中期,对41个柿品种、45个样品的果实内单宁细胞,进行了组织学镜检。结果表明,一般甜柿较涩柿的单宁细胞数目少,个小,横径/纵径指数小。从果实顶部到基部,单宁细胞的横径变化不显著,但纵径从小到大,横径/纵径指数由大到小,甜柿一般较涩柿变化明显。作为砧木的君迁子和美国柿,果实内单宁细胞数量为普通柿的3～7倍,横径/纵径指数在0.7以上,但果实不同部位差异很小。
In the mid-fruit development period, 41 persimmon cultivars and 45 samples of fruit tannin cells were examined histologically by the comparison between Junzi and American persimmon. The results showed that the number of tannin cells in persimmon persimmon was smaller, smaller and the diameter / diameter index was smaller. From the top of the fruit to the base, the changes in the diameter of tannin cells were not significant, but the vertical and horizontal diameter / vertical diameter index decreased from small to large, and persimmon generally had more changes than astringent. As a rootstock of the United States and the United States persimmon Jun persimmon, the number of tannins within the fruit of the ordinary Persimmon 3 to 7 times the diameter / vertical diameter index of 0.7 or more, but the fruit in different parts of small differences.