Abstract
The observations were conducted in long-term sequence studies in the years 2006, 2009, 2013, in the Lublin area, Poland (51o 16’ N, 22o 30’ E). The flowering phenology, diurnal pattern of blooming, pollen production and insect visitation to the shrubs of <em>Syringa oblata </em>Lindl. <em>var. dilatata </em>(Nakai) Rehd. and <em>S. meyeri ‘Palibin’ </em>Schn. were examined. <em>Syringa oblata </em>var. <em>dilatata </em>and <em>S. meyeri </em>‘Palibin’ blo- omed from the mid May till mid June. The species are characteristic of early morning diurnal pattern of blooming, with approx. of 60% of daily instalment of flowers opened before 9.00 (GMT + 2h). Both species studied had the corolla tube 2-fold deeper during the pollen shedding phase compared to bud stage (mean = 14.9 mm ± 3.2 SD vs. 7.8 mm ± 2.8). No species effect was found for the size of anthers, for the mass of pollen produced in anthers and for the pollen viability. A constant number of 2 stamens in the flowers of <em>Syringa </em>species entailed the pollen yield was derivative mainly to the number of developed flowers. Therefore significant differences were noted for the pollen yield between individual shrubs (mean 0.9 kg for <em>S. meyeri </em>‘Palibin’, and 8.1 kg/ha for <em>S. oblata </em>var. <em>dilatata </em>). The <em>Syringa oblata </em>var. <em>dilatata </em>and <em>S. meyeri </em>‘Palibin’ due to their attractive flowering period, and the abundance of blooming are suitable for different ornamental designs in urban areas. Unfortunately, despite the entomophilous flower traits, the insect visitors appeared sporadically.
Highlights
The genus Syringa L., lilacs, includes about 30 species, of woody, multi-stemmed shrub plants in the family Oleaceae [1]
The genus Syringa is divided into two subgenera, and one of these Ligustrina L. has flowers with corolla tube shorter than corolla lobs
The observations were conducted in long-term sequence studies in 2006, 2009, 2013, in the Lublin area, Poland (51o 16’ N, 22o 30’ E)
Summary
The genus Syringa L., lilacs, includes about 30 species, of woody, multi-stemmed shrub plants in the family Oleaceae [1]. The plants (e.g. Syringa vulgaris) have been used ethnobotanically to reduce fever and treat malaria, as a perfume and a tonic, and in homeopathy [5]. The genus Syringa is divided into two subgenera, and one of these Ligustrina L. has flowers with corolla tube shorter than corolla lobs. The single flowers of Syringa species are reported to be visited by hummingbirds, bees and butterflies [7]. In the former Soviet Union, the S. vulgaris was mentioned as nectariferous [8]. The pollen grains of the Syringa type are noted in bee products [11,12]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
