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Anemophilous plant pollen in spring specific honeys from the Rzeszow area

100%

Ceglinska K.

Acta Agrobotanica

2008

tom 61

nr 1

The present study comprises pollen analyses of 23 samples of spring specifi c honeys collected from apiaries situated in 12 communes in the Rzeszów area during the 2005 -2006 apicultural season. Forty two pollen taxa were identifi ed in the examined material, of which 31 nectariferous and 11 non-nectariferous anemophilous plants. Among the nectariferous plants, the highest pollen frequency was found for Brassicaceae (others) (95.7%), Rubus type (91.3%) and Prunus type (86.9%). The presence of anemophilous pollen grains was recorded in all the samples, with Poaceae reaching the highest frequency (69.8%). The frequency of over 50% was characteristic of Quercus and Rumex, while the lowest frequency (less than 10%) was recorded for Cerealia, Corylus avellana and Humulus lupulus. The highest participation was found for Quercus, whose pollen grains constituted as much as 80% of anemophilous pollen grains in a single sample. The lowest participation (below 3%) was found for Rumex, Pinus and Artemisia. Among all the taxa of pollen grains found in a single sample, Poaceae pollen reached the highest share of anemophilous pollen in a sample of honey from fruit trees (10%), whereas Quercus pollen in one honey from Brassica napus (7.8%) and in one honey from Acer (4.5%). The pollen share of the remaining anemophilous taxa in the examined honeys ranged between 0.2% and 2.9%. The identifi ed anemophilous taxa belong to 10 botanical families. In 19 out of 23 examined samples of honeys, small indicators of honeydew were discovered.

Pollen production in selected species of anemophilous plants

84%

Piotrowska K.

Acta Agrobotanica

2008

tom 61

nr 1

In the study, structural features of fl owers of the following allergenic plant species were analysed: Betula verrucosa, Secale cereale, Rumex acetosella, Plantago major and Artemisia vulgaris. Pollen production was established by calculating the number of pollen grains produced by the stamen, fl ower and infl orescence. The dates of occurrence and pollen grains concentration in the air of Lublin were determined. A positive correlation was found between the length of anthers and the number of pollen grains produced. The largest number of pollen grains per anther is produced by Secale cereale (22 360), whereas the smallest one by Plantago major (5 870). The other species produced intermediate numbers of pollen grains in the anther: Betula verrucosa – 11 160, Rumex acetosella – 10 850, Artemisia vulgaris – 9 580. The birch pollen season in Lublin lasts about a month, and pollen of this taxon reaches the highest airborne concentrations among the studied taxa. Low values of pollen concentrations are characteristic for rye and plantain, whereas slightly higher values are recorded for sorrel pollen. Mugwort pollen reaches high concentrations which are noted at the beginning of August.

Ograniczanie wyników

2 Acta Agrobotanica

1 Ceglinska K.

1 Piotrowska K.

2 2008

Wyniki wyszukiwania

Anemophilous plant pollen in spring specific honeys from the Rzeszow area

Pollen production in selected species of anemophilous plants