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Wpływ wielkości rozłupek na kiełkowanie i rozwój siewek selerów błotnych Apium repens (Jacq.) Lag.

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Florkowski K.

tom 62

Morphological variability of fruits in Apium repens (jacq.) Lag. – a critically endangered species in poland

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Florkowski K.

nr 3

This study presents the variability in morphological features (length, width, shape and volume) of fruits (schizocarps) of Apium repens (Jacq.) Lag. Fruits were collected from plants occurring both in natural conditions and in cultivation under optimal and uniform conditions. It was found that populations of A. repens from the Wielkopolska Province differ significantly in fruit size. Mericarps of plants growing in the Gniezno Lakeland are smaller than those from the Leszno Lakeland. Similar measurements were conducted for mericarps from cultivated populations (initiated on the basis of in situ material originating from wild populations). The Mann-Whitney U test showed that fruits in cultivated populations are bigger and in some cases significantly bigger (Z = –12.22 for p < 0.00) than those formed in natural conditions. However, the shape of mericarps remained almost unchanged regardless of environmental conditions.