Abstract

This study presents data on actual seed productivity and the ability to spread generative diaporas of various Sparganium species. It is established that, by decreasing the actual seed-productivity index, Sparganium species are arranged in the following order: S. microcarpum (Neum.) Domin. > S. emersum Rehm. > S. glomeratum (Laest.) Neum. > S. gramineum Georgi. > S. erectum L. > S. hyperboreum Laest. ex Beurl. > S. natans L. The lowest actual seed-productivity indices are recorded in representatives of the Minima section—S. hyperboreum and S. natans, which is caused by the miniaturization of the sizes of these species. Investigations into the floating ability of the fruitlet show that the representatives of the subgenus Sparganium (compared to the representatives of the subgenus Xanthosparganium) have higher buoyancy, which is associated with the higher wall thickness of the stone fruit and the number of air cavities in the pericarp. Unlike other species, the fruitlet of S. gramineum sinks to the bottom of the reservoir after separation from the plant.

中文翻译：

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欧洲一些Sparganium L.属的种子生产力和浮游性生孢子的漂浮特性。

摘要

这项研究提供了有关实际种子生产力和散布各种Sparganium种类的成虫腹泻的能力的数据。已经确定，通过降低实际的种子生产力指数，Sparganium物种按以下顺序排列：S. microcarpum（Neum。）Domin。> S. emersum Rehm。> S. glomeratum（最新）Neum。> S. gramineum Georgi。> S. erectum L.> S. hyperboreum Laest。前Beurl。> S.苹L.最低实际种子生产率指数被记录在代表最小值本条S. hyperboreum和natans，这是由于这些物种的大小微型化而引起的。对子果实的漂浮能力的调查表明，Sparganium属的代表（与Xanthosparganium属的代表相比）具有较高的浮力，这与核果的壁厚较高和果核中的气孔数量有关。果皮。不同于其他物种，的幼果S.禾汇于从植物分离后的贮存器的底部。