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Over the period 2007–2009, a study was conducted on the biology and abundance of flowering of Weigela florida Bunge and the effect of color change in its flowers on the behavior of pollinating insects. In the climatic conditions of south-eastern Poland, the flowering of the studied taxon started at the beginning of the second 10-day period of May and lasted from 4.5 to 7 weeks. Single W. florida flowers...
Ligularia genus includes species cultivated in house gardens and urban parks as an attractive ornamental plants. During flowering period their flower heads may provide pollen food for pollinators. In the period 2004–2008, the present study investigated the abundance of flowering and pollen production of two Ligularia species as a source of pollen for insects. Under the conditions of Lublin, the onset...
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