New measurements of thousand-seed weights of species in the Pannonian flora

Török, P. and Tóth, E. and Tóth, K. and Valkó, O. and Deák, B. and Kelbert, B. and Bálint, P. and Radócz, Sz. and Kelemen, A. and Sonkoly, J. and Miglécz, T. and Matus, G. and Takács, A. and Molnár, V. A. and Süveges, K. and Papp, L. and Papp Jr., L. and Tóth, Z. and Baktay, B. and Málnási Csizmadia, G. and Oláh, I. and Peti, E. and Schellenberger, J. and Szalkovszki, O. and Kiss, R. and Tóthmérész, B. (2016) New measurements of thousand-seed weights of species in the Pannonian flora. Acta Botanica Hungarica, 58 (1-2). pp. 187-198. ISSN 0236-6495

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Abstract

For understanding local and regional seed dispersal and plant establishment processes and for considering the ecotypes and other forms of specific variability, hard data of locally or regionally measured traits are necessary. We provided newly measured seed weight data of 193 taxa, out of which 24 taxa had not been represented in the SID, LEDA or BiolFlor databases. Our new measurements and formerly published data of locally collected seed weight records together covers over 70% of the Pannonian flora. However, there is still a considerable lack in seed weight data of taxonomically problematic genera, even though they are represented in the Pannonian flora with a relatively high number of species and/or subspecies (e.g. Sorbus, Rosa, Rubus, Crataegus and Hieracium). Our regional database contains very sporadic data on aquatic plants (including also numerous invasive species reported from Hungary and neighbouring countries) and some rare weeds distributed in the southwestern part of the country. These facts indicate the necessity of further seed collection and measurements.

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