Yield and Yield Components of Winter Poppy ( Papaver somniferum L.) Are Affected by Sowing Date and Sowing Rate under Pannonian Climate Conditions

Reinhard W. Neugschwandtner (), Georg Dobos, Helmut Wagentristl, Tomáš Lošák, Agnieszka Klimek-Kopyra and Hans-Peter Kaul
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Reinhard W. Neugschwandtner: Institute of Agronomy, Department of Crop Sciences, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
Georg Dobos: Zeno Projekte, Pötzleinsdorfer Straße 10/3, 1180 Wien, Austria
Helmut Wagentristl: Experimental Farm Groß-Enzersdorf, Department of Crop Sciences, University of Natural Resources and Life Sciences Vienna (BOKU), Schloßhofer Straße 31, 2301 Groß-Enzersdorf, Austria
Tomáš Lošák: Department of Environmentalistics and Natural Resources, Faculty of Regional Development and International Studies, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
Agnieszka Klimek-Kopyra: Institute of Crop Production, University of Agriculture of Cracow, Al. Mickiewicza 21, 31-120 Cracow, Poland
Hans-Peter Kaul: Institute of Agronomy, Department of Crop Sciences, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, 3430 Tulln, Austria

Agriculture, 2023, vol. 13, issue 5, 1-11

Abstract: Poppy cultivation has a long tradition in Central Europe. Growing winter poppy instead of the commonly grown spring poppy might increase seed yield, especially in the face of changing climatic conditions. However, knowledge regarding optimum sowing date and optimum sowing rate for winter poppy under Pannonian climate conditions in Central Europe is missing. Therefore, a two-year field experiment was performed in Eastern Austria with four sowing dates ranging from early September to mid/end of October and two sowing rates with 50 or 100 mg seeds m −2 . Seed yields were considerably higher than values reported for spring poppy throughout all sowing dates, mainly due to a higher number of seeds capsule −1 and, thereby, a higher seed yield capsule −1 . The highest seed yields were obtained by sowing in early October, while the earliest and especially the latest sowing date resulted in lower seed yields. Consequently, the optimum sowing date for winter poppy under Pannonian climate conditions in Central Europe is early October but sowing can be performed over a wider range of dates. No seed yield differences were observed between sowing rates. Consequently, the sowing rate can be much lower than the recommended sowing rate for spring poppy.

Keywords: Papaver somniferum L.; biomass; plant density; pod density; seed number; thousand seed weight (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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