Effect of sowing density on grain yield, protein and oil content and plant morphology of soybean (Glycine max L. Merrill)

Olena Sobko, Jens Hartung, Sabine Zikeli, Wilhelm Claupein and Sabine Gruber
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Olena Sobko: Institute of Crop Science, University of Hohenheim, Stuttgart, Germany
Jens Hartung: Institute of Crop Science, University of Hohenheim, Stuttgart, Germany
Sabine Zikeli: Center for Organic Farming, University of Hohenheim, Stuttgart, Germany
Wilhelm Claupein: Institute of Crop Science, University of Hohenheim, Stuttgart, Germany
Sabine Gruber: Institute of Crop Science, University of Hohenheim, Stuttgart, Germany

Plant, Soil and Environment, 2019, vol. 65, issue 12, 594-601

Abstract: To find out exactly how sowing density and sowing pattern affect soybean grain yield, quality and its components in non-traditional soybean growing regions, such as Germany, two field trials have been conducted at two locations in Bavaria in 2016 and 2017. The experiments were carried out with four sowing densities (30, 50, 70, 90 seeds/m2) and four cultivars from different maturity groups (Viola 000, Lissabon 000, ES Mentor 00, Orion 00) as randomized complete block design with four replicates. Almost all evaluated traits varied significantly depending on year × location. There was no interaction between the main factors (cultivar × sowing density). The results revealed that grain yield and height of the first pod increased with increase of sowing density. The number of pods per plant and branching decreased with increasing sowing density. At higher sowing densities at flowering leaf area index was significantly higher than at lower sowing densities. The cv. ES Mentor (00) with 70 seeds/m2 has proved to be a suitable cultivar in terms of yield and quality in southern Germany (> 3.6 t/ha grain yield and 40% protein).

Keywords: seed quality; climate change; competition; height of first pod; yield structure; harvest index (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:65:y:2019:i:12:id:346-2019-pse

DOI: 10.17221/346/2019-PSE

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