Abstract
In the years 2004-2006, investigations on the abundance of pollen production in two cultivars of <i>Lonicera kamtschatica</i> (Sevast.) Pojark. - Atut and Duet, were conducted at the Felin Experimental Farm of the Agricultural University in Lublin. Moreover, the viability of pollen grains was estimated and measurements of their size were taken. Ten flowers of both studied cultivars supplied 11.42 mg of pollen and the average pollen productivity per 1 ha of a several-years-old plantation was 30.04 kg. The pollen of the observed plants was eagerly collected by honey bees. Pollen grains of both cultivars are suboblate. Considering their size, they can be described as large ones (P=47.55 µm, E=60.37 µm). Pollen viability for both cultivars is high, about 95%.
Highlights
The pollen of the observed plants was eagerly collected by ho ney bees
Pollen grains of both cultivars are suboblate. They can be described as large ones (P 47.55 μm, E 60.37 μm)
Honeyberry (Lonicera kamtschatica (Sevast.) Pojark.) berries ripe earlier than other fruits grown in orchards
Summary
Honeyberry (Lonicera kamtschatica (Sevast.) Pojark.) berries ripe earlier than other fruits grown in orchards. Blooming of this species starts usually in the second half of April and finishes about the middle of May, coinciding with the period of high pollen demand by bee colonies. The aim of the present study was to estimate pollen productivity in two cultivars of L. kamtschatica, in the conditions of south–eastern Poland. The viability and size of pollen grains in both cultivars were investigated
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