Starfinger, Uwe

Sölter, Ulrike

English

JKI Open Journal Systems (Julius Kühn-Institut)

Julius-Kühn-Archiv 455 | 201632HALT Ambrosia - final project report and general publication of project findingsHALT Ambrosia - final project report and general publication of project findingsPre-trials on seed viability at the Julius Kühn-Institut Uwe Starfinger1, Ulrike Sölter21Julius Kühn-Institut, Federal Research Centre for Cultivated Plants,  Institute for National and International Plant Health, Messeweg 11/12, 38104 Braunschweig,  Germany; e-mail: uwe.starfinger@julius-kuehn.de;  2Julius Kühn-Institut, Federal Research Centre for Cultivated Plants, Institute for Plant Protection  in Field Crops and Grassland, Messeweg 11/12, 38104 Braunschweig, GermanyDOI 10.5073/jka.2016.455.10IntroductionCommon ragweed seeds from various sources were tested for germinability (germination test, Fig. 1) and vitality (TTC-test with different concentrations of TTC-solutions, Fig. 2). The overall germina-tion rates varied between 42 and 76%. Those rates are comparable to French (Fumanal et al., 2007), Austrian (Karrer et al. 2011) and American populations (Dickerson 1968).010203040506070809010028.07. 01.08. 03.08. 04.08. 05.08. 08.08.HS-1HS-2HS-3HS-4HS-5NL-1NL-2NL-3NL-4Fig. 1: Germination dynamics of 9 seed samples from two different seeds lots (HS-Herbiseed and NL-Niederlausitz) of common ragweed 0.5% (concentration 1) and 1% (concentration 2) TTC solutions were used for viability tests, incuba-tion time was 6h at 30°C. We used two different seed lots: Herbiseed (HS) seeds were bought from a trading company (Herbiseed) in 2011 and stored in a cool (4°C), dry and dark place until they were taken out for the germination test (ca. after 3 month). Niederlausitz (NL) seeds were collected from a population found in the region Niederlausitz in Germany in 2010. Since then they were stored in an office (app. 20°C) until they were used for the germination test in 2011.For the results (Fig. 2), we found that 1% solutions showed clearer staining and less partly stained seeds. Most seeds show positive reaction to TTC. Herbiseed samples show more dead and not fully stained seeds than Niederlausitz samples. Seeds boiled for 15 minutes show no staining.Julius-Kühn-Archiv 455 | 2016HALT Ambrosia - fi nal project report and general publication of project fi ndings33HALT Ambrosia - fi nal project report and general publication of project fi ndingsFig. 2: TTC-staining of Niederlausitz (NL) and Herbiseed (HS) seed lots of common ragweed with two levels of TTC-content of staining solution (i.e., 1: incubated with 0.5% TTC solution; 2 incubated with 1% TTC solution)ReferencesDickerson, C. T. (1968): Studies on the germination, growth, development and control of common ragweed (Ambrosia artemisiifolia L.), Ph.D. Thesis. Cornell Univ. (Libr. Congr. Card No. Mic. 68-16, 737) 162 p. Univ. Microfi lms. Ann Arbor, Mich.Fumanal, B., Chauvel, B., Bretagnolle, F. (2007): Estimation of pollen and seed production of common ragweed in France. Ann Agric Environ Med 14: 233-236.Karrer, G., Milakovic, M., Kropf, M., Hackl, G., Essl, F., Hauser, M., Mayer, M., Blöch, C., Leitsch-Vitalos, M., Dlugosch, A., Hackl, G., Follak, S., Fertsak, S., Schwab, M., Baumgarten, A., Gansberger, M., Moosbeckhofer, R., Reiter, E., Publig, E., Moser, D., Kleinbauer, I., Dullinger, S. (2011): Ausbreitungsbiologie und Management einer extrem allergenen, eingeschleppten Pfl anze – Wege und Ursachen der Ausbreitung von Ragweed (Ambrosia artemisiifolia) sowie Möglichkeiten seiner Bekämpfung. Endbericht, BMLFUW, Wien. 315 pp. German version available from: https://www.dafne.at/dafne_plus_homepage/.

Pre-trials on seed viability at the Julius Kühn-Institut

Directory of Open Access Journals

https://ojs.openagrar.de/index.php/JKA/article/download/7085/6564

Pre-trials on seed viability at the Julius Kühn-Institut

Abstract

Similar works

Full text

Available Versions

JKI Open Journal Systems (Julius Kühn-Institut)

Directory of Open Access Journals