Kazinczi, Gabriella

Kerepesi, Ildikó

English

JKI Open Journal Systems (Julius Kühn-Institut)

Julius-Kühn-Archiv 455 | 2016HALT Ambrosia - final project report and general publication of project findings31HALT Ambrosia - final project report and general publication of project findingsIntraspecific differences of seed longevity between ragweed  populations in HungaryGabriella Kazinczi, Ildikó KerepesiDepartment of Plant Production and Plant Protection, Institute of Plant Science, Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. str. 40, H-7400 Kaposvár, Hungary; e-mail: kazinczi.gabri-ella@ke.huDOI 10.5073/jka.2016.455.09Common ragweed seeds were sampled in different years and various parts of Hungary, stored un-der dry conditions and at room temperature and finally tested in 2012 for viability by TTC-test. Vi-ability of seeds decreased seriously within few years. After 8 years of storage under dry and warm conditions all seeds were dead.After 7, 6 and 4 years of dry storage seed viability was 15, 45 and 72%, respectively. Common rag-weed seed viability after 3 years of dry storage varied between 67 and 90%, depending on origin of populations. In another study viability decreased by 82% after five years for seeds stored in paper bags at room temperature (Kazinczi et al. 2011; Kazinczi and Novák, 2014). Viability variation between origins is relatively high (Table 1). Table 1 : Viability (% viable seeds from standard TTC-test) of seeds of common ragweed at various age stages and collected from different parts of HungaryYear of seed collection/ age of seeds Origin Viability (%)1997/15 Keszthely, waste land 02004/8 Szekszárd, corn 02005/7 Keszthely, waste land 152006/6 Keszthely, corn 452008/4 Zalaegerszeg, corn 722009/3 Petrivente, waste land 782009/3 Petrivente, waste land 672009/3 Keszthely, waste land 672009/3 Keszthely, waste land 722009/3 Kaposvár, waste land 682009/3 Keszthely, roadside 772009/3 Kaposvár, stubble 902010/2 Kaposvár, waste land 642011/1 Kaposvár, waste land 97ReferencesKazinczi G., Béres I., Fischl G., Horváth J. (2011): Adatok néhány inváziós gyomnövény faj csírázásbiológiájához (Data on the germination biology of some invasive alien weed species). Növényvédelem 47 (3): 89-99. (in Hungarian with an English summary)Kazinczi, G. and Novák, R. (eds) (2014): Integrated Methods for Suppression of Common Ragweed. National Food Chain Safety Office, Directorate of Plant Protection, Soil Conservation and Agri-Environment, Budapest, Hungary

Intraspecific differences of seed longevity between ragweed populations in Hungary

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Intraspecific differences of seed longevity between ragweed populations in Hungary

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