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Variability of seeds of the invasive species Impatiens glandulifera Royle (Balsaminaceae) and their micromorphology

100%

Maciejewska-Rutkowska I., Janczak B.

Steciana

2016

tom 20

nr 4

The aim of the work was to estimate the range of morphological variability of seeds of the Himalayan balsam (Impatiens glandulifera), from different sites within Poland. It was also verified whether there was a correlation between morphological variability of seeds and type of vegetation from which they originated. Additionally, the seed coat ultrastructure of this species was studied. Biometrical analysis showed remarkable variability of seed morphology. A significant relationship between seed size and type of vegetation was also revealed. However, there was no clear relationship between seed mass and type of vegetation. Based on the structure and ornamentation of epidermal cells, the rugosely ruminate seed coat type was proposed.

Seed mass variation in Central European populations of invasive Impatiens glandulifera Royle

100%

Chmura D., Csontos P., Sendek A.

Polish Journal of Ecology

2013

tom 61

nr 4

Positive correlation between seed weight and germination capacity is common for the vast majority of species. It is also known that seed weight can vary along a latitudinal gradient. The seed mass of the invasive Himalayan balsam (Impatiens glandulifera), which is native to East Asia, was examined in relation to distinct geographical regions in Poland (Bielsko-Biala: N49°52′32″, E18°57′43″; Katowice: N50°12′8.3″, E18°57′26″; Tworków: N50°01′22″, E18°15′28”); Hungary (Rum: N47°06′41″, E16°50′45″; Rábahídvég: N47°03′54″, E16°44′59″) and Germany (Halle: N51°28′47″, E11°57′12″; Marburg: N50°48′32″, E8°46′31″). The study revealed that seed mass varied both among the countries and among specific populations within Poland and Germany. In Hungary, the 50 seed lots were the lightest 0.29 g and 0.31 g in respective localities and the heaviest in single populations in Poland – 0.61 g and in Germany – 0.57 g. In the present study, populations located more southwards had the lightest seeds in contrast to the commonly encountered pattern. Higher temperature, lower precipitation and as a consequence, a shortage of water can be crucial factors that affect the seed mass of I. glandulifera. Taking into account the lower frequency and abundance of the species in Hungary, the lower seed mass may probably contribute to the limited distribution range in this region.

Ograniczanie wyników

1 Polish Journal of Ecology

1 Steciana

1 Chmura D.

1 Csontos P.

1 Janczak B.

1 Maciejewska-Rutkowska I.

1 Sendek A.

1 2016

1 2013

Wyniki wyszukiwania

Variability of seeds of the invasive species Impatiens glandulifera Royle (Balsaminaceae) and their micromorphology

Seed mass variation in Central European populations of invasive Impatiens glandulifera Royle