<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A study on the flowering biology and pollen production of the common laburnum (Laburnum anagyroides Med.) was conducted under the conditions of Lublin during the period 2004 - 2006. The flowering of this species began in the second 10-day period of May and lasted for 2.5 - 4 weeks. The flowers of common laburnum are borne in showy golden-yellow pendulous racemes. They develop successively, starting from the base and moving to the tip of an inflorescence. During the growing season, one shrub produces 800 to 3200 racemes, with 14 to 35 flowers in a single raceme. On average, the flowering duration for a raceme was 12.8 days and 8.7 days for a single flower. Throughout the study years, the shrubs proved to be most attractive in the third 10-day period of May when they reached full bloom.</p><p>The average weight of pollen produced was 6.08 mg per 10 flowers of Laburnum anagyroides, 14.02 mg per raceme, and 26.0 g per shrub. Pollen grains reached average dimensions of 24.01 μm × 24.26 μm.</p></abstract>

A study on the flowering biology and pollen production of the common laburnum (Laburnum anagyroides Med.) was conducted under the conditions of Lublin during the period 2004 - 2006. The flowering of this species began in the second 10-day period of May and lasted for 2.5 - 4 weeks. The flowers of common laburnum are borne in showy golden-yellow pendulous racemes. They develop successively, starting from the base and moving to the tip of an inflorescence. During the growing season, one shrub produces 800 to 3200 racemes, with 14 to 35 flowers in a single raceme. On average, the flowering duration for a raceme was 12.8 days and 8.7 days for a single flower. Throughout the study years, the shrubs proved to be most attractive in the third 10-day period of May when they reached full bloom.The average weight of pollen produced was 6.08 mg per 10 flowers of Laburnum anagyroides, 14.02 mg per raceme, and 26.0 g per shrub. Pollen grains reached average dimensions of 24.01 μm × 24.26 μm.

Flowering dynamics and pollen production of Laburnum anagyroides Med. under the conditions of south-eastern Poland

University of Life Sciences in Lublin, Department of Botany, Akademicka 15, 20-950 Lublin, Poland

Journal of Apicultural Science

A study on the flowering biology and pollen production of the common laburnum (Laburnum anagyroides Med.) was conducted under the conditions of Lublin during...

Flowering dynamics and pollen production of Laburnum anagyroides Med. under the conditions of south-eastern Poland

Published Online: Dec 31, 2013

Page range: 103 - 115

DOI: https://doi.org/10.2478/jas-2013-0021

Keywords
flowering, Laburnum anagyroides, pollen forage, pollen grain morphology

This content is open access.

Flowering dynamics and pollen production of Laburnum anagyroides Med. under the conditions of south-eastern Poland

Published Online: Dec 31, 2013

Page range: 103 - 115

DOI: https://doi.org/10.2478/jas-2013-0021

Keywordsflowering, Laburnum anagyroides, pollen forage, pollen grain morphology

This content is open access.

Keywords
flowering, Laburnum anagyroides, pollen forage, pollen grain morphology