Abstract
Abstract Soybean [ Glycine max (L.) Merr.] is a major plant protein source worldwide, and its cultivation in central and northern Europe is still emerging. To understand the influence of the environment in the northern latitudes and its interactions with different soybean genotypes, a 3‐year multi‐location trial was carried out in Northern Germany. The objectives were to (i) quantify the grain yield and stability of six soybean genotypes across eight environments using the additive main effect and multiplicative interaction and best linear unbiased prediction models to identify superior genotypes as well as optimal environmental conditions for growing soybeans in northern latitudes, and (ii) assess the genotype‐environment interaction on soybean grain yield, crude protein, and protein yield to explore the factors contributing to yield variability. The mean soybean grain yield was 2060 kg ha −1 , and it varied among locations and across years. A large portion of the total variance in all parameters was explained by environment (67.6%–82.8%), followed by genotype‐environment interaction (7.7%–14.6%), while a small portion was attributed to genotypes (1.3%–10.5%). The growing conditions at site Müncheberg produced a stable soybean yield but were less productive than sites Dahlem and Dedelow. Regular precipitation in July and August corresponded with increased grain yield. The stability models ranked the feed‐grade cultivar Merlin as superior in terms of stability and performance. In contrast, the food‐grade cultivar Comandor may be risky for grain production in rainfed conditions. The study highlighted soybean's agronomic potential in northern latitudes and the influence of the prevailing environment on yield and stability.
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Claims 9
Claim · model-written summary
Mean soybean grain yield was 2060 kg ha −1.
- Taxon
- Soybean
Glycine maxt0 - Outcome
- soybean grain yielde0
- Value
- 2060 kg ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean soybean grain yield was 2060 kg ha −1”
t0“soybean yield stability”
Claim · model-written summary
Soybean grain yield varied among locations and years.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- soybean yieldt0
- Setting
- locationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it varied among locations and across years”
t0“soybean yield stability”
Claim · model-written summary
Environment explained 67.6%–82.8% of variance in the studied parameters.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- total variance in all parameterse0
- Value
- 67.6%–82.8%e0
- Setting
- environmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total variance in all parameters was explained by environment (67.6%–82.8%)”
t0“soybean yield stability”
Claim · model-written summary
Genotype environment interaction explained 7.7%–14.6% of variance.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- genotype‐environment interactione0
- Value
- 7.7%–14.6%e0
- Setting
- environmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotype‐environment interaction (7.7%–14.6%)”
t0“soybean yield stability”
Claim · model-written summary
Genotypes accounted for 1.3%–10.5% of variance.
- Taxon
- SoybeanGlycine maxt0
- Material
- genotypese0
- Outcome
- genotypese0
- Value
- 1.3%–10.5%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotypes (1.3%–10.5%)”
t0“soybean yield stability”
Claim · model-written summary
Müncheberg produced stable soybean yield but was less productive than Dahlem and Dedelow.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- soybean yielde0
- Direction
- less productivee0
- Comparator
- Dahlem and Dedelowe0
- Setting
- Müncheberge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“site Müncheberg produced a stable soybean yield but were less productive than sites Dahlem and Dedelow”
t0“soybean yield stability”
Claim · model-written summary
Regular July and August precipitation corresponded with increased grain yield.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- grain yielde0
- Direction
- increasede0
- Setting
- July and Auguste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regular precipitation in July and August corresponded with increased grain yield”
t0“soybean yield stability”
Claim · model-written summary
Merlin ranked superior for yield stability and performance.
- Taxon
- SoybeanGlycine maxt0
- Material
- Merline0
- Outcome
- stability and performancee0
- Direction
- superiore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“feed‐grade cultivar Merlin as superior in terms of stability and performance”
t0“soybean yield stability”
Claim · model-written summary
Comandor may be risky for rainfed grain production.
- Taxon
- SoybeanGlycine maxt0
- Material
- Comandore0
- Outcome
- grain productione0
- Qualifier
- rainfed conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“food‐grade cultivar Comandor may be risky for grain production in rainfed conditions”
t0“soybean yield stability”