Soybean Yield and Seed Composition Changes in Response to Increasing Atmospheric CO2 Concentration in Short-Season Canada

Cober, Elroy R.; Morrison, Malcolm J.

doi:10.3390/plants8080250

Cited by 12 publications

(7 citation statements)

References 44 publications

(58 reference statements)

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“…In line with previous work, we do not consider the effect of an increase in atmospheric CO2 concentration on soybean yields because this effect is still very uncertain due to many complex interaction mechanisms, and is still widely discussed in the research community [63][64][65][66][67][68] . However, if an increase in atmospheric CO2 concentration positively affects soybean yield as suggested by the most up-to-date quantitative synthesis of available experimental and modeling studies (which reports an estimated global average yield increase of soybean of +11% for an increase in atmospheric CO2 concentration of +100ppm) 69 , it further supports our findings that large opportunities exist to improve Europe soybean self-sufficiency under climate change.…”

Section: Potential Effects Of Some Factors Not Included In the Modelmentioning

confidence: 96%

Data-driven projections suggest large opportunities to improve Europe’s soybean self-sufficiency under climate change

2022

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Currently, demand for soybean in Europe is mostly fulfilled by imports. However, soybeangrowing areas across Europe have been rapidly increasing in response to a rising demand for locally-produced, non-GM soybean in recent years. This raises questions about the suitability of European agro-climatic conditions for soybean production. We used data-driven relationships deforestation in biodiversity hotspots in South America. However, it would also lead to an important reduction in the production of other cultivated species in Europe (e.g. cereals) and a potential increase in the use of irrigation water.

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Section: Potential Effects Of Some Factors Not Included In the Modelmentioning

confidence: 96%

Data-driven projections suggest large opportunities to improve Europe’s soybean self-sufficiency under climate change

2022

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“…Nighttime temperatures have to exceed 85 • F (approximately 30 • C) before any noticeable reduction in soybean yield is experienced (Farm Progress 2022). Cober and Morrison (2019) found that soybean seed yield was increased significantly by elevated atmospheric CO 2 concentration, higher precipitation and higher minimum temperatures during flowering and podding, although yield decreased with higher minimum temperatures during vegetative growth and seed filling. Given that the respiration rates at 26 and 29 • C were doubled when compared to 20…”

Section: Climate Indicators For Soybeansmentioning

confidence: 98%

Climate conditions in the near-term, mid-term and distant future for growing soybeans in Canada

et al. 2023

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The soybean industry in Canada aimed to extensively expand soybean production to benefit from new early-maturing varieties and the warming climate. However, setbacks in the soybean industry since 2017 demonstrated the impacts of climate risk and global market uncertainty. Therefore, a better understanding of future climate conditions that will impact soybean growth in Canada is needed for decision-making in the sector, such as prioritizing regions for expansion and developing climate change adaptation strategies through either agronomic management practices or breeding new cultivars. Based on climate projections from a set of global climate models, we analyzed climate conditions for growing soybeans including growing season start, crop heat units, precipitation, precipitation deficits, and climate extremes, in the near-term (2030s), the mid-term (2050s) and the distant future (2070s). We found that a future warmer climate with an increase of 1.6, 2.8 and 4.1°C in the growing season (May – September) mean temperature averaged over Canada’s land area in the near-term, mid-term and distant future under SSP3-7.0, would favour the expansion of soybean production further north and west. However, an increase of approximately 200 mm in precipitation deficits on the semiarid Canadian Prairies in the mid-term would constrain soybean production unless irrigation could be introduced. Heat- and drought-tolerant cultivars should be developed to adapt soybean production to a changing climate, in addition to the adoption of late-maturing cultivars that would benefit from the lengthened growing season and increased crop heat units.

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“…and while this experiment was not designed to investigate drought stress and soybean protein, it is noteworthy that the irrigated field had higher protein than the dryland field and was the site with the second highest mean protein in this study (Table 4). In our previous work at Ottawa, precipitation during early reproductive growth (flowering and pod development) was the most important environmental factor for seed protein content (Cober and Morrison 2019). Current and newly developing irrigated land in Western Canada may be exploited to produce higher-protein soybeans in the future.…”

Section: Seed Protein Contentmentioning

confidence: 99%

“…While Rotundo et al (2016) found geographical differences for soybean seed protein, year-to-year weather variations also played an important role in soybean seed protein. In examining parameters affecting seed protein in short-season soybeans at Ottawa, precipitation during early reproductive growth (flowering and pod development) was the most important environmental factor for seed protein content, with an increase of 0.17 g kg −1 seed protein for every mm of precipitation (Cober and Morrison 2019). A meta-analysis of factors influencing soybean seed protein indicated that drought stress increased seed protein percentage through less dilution of the protein and not through an increase in protein synthesis (Rotundo and Westgate 2009).…”

Section: Introductionmentioning

confidence: 99%

Soybean seed protein content is lower but protein quality is higher in Western Canada compared with Eastern Canada

et al. 2023

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Low seed protein content in soybean [Glycine max (L.) Merr.] grown in Western Canada can result in soybean meal which does not meet the 48% protein standard. The objectives of this study were to quantify the seed composition and agronomic differences between Eastern and Western Canada using common soybean cultivars. Twenty high to low protein, including one non-nodulating, cultivars were grown at two locations in Eastern Canada, and eight locations in Western Canada from 2018 to 2021 to determine seed protein and other composition and agronomic traits. Over all environments, cultivar seed protein ranged from 36.8 to 46.9% with 35.0% for the non-nodulating line. Seed protein was significantly higher in eastern Canada (41.6%) compared to Eastern Prairie (39.3%) and Prairie sites (39.7%). There are not separate east-west mega-environments for seed protein in Canada; a high protein cultivar is high protein across Canada. With an increase of seed protein by 1%, seed yield dropped by 45.3 kg ha-1 in Eastern Canada, 53.1 kg ha-1 in the Eastern Prairie and 78.4 kg ha-1 in Prairie sites. In Western Canada, plants were taller but lower yielding with fewer and smaller seeds, and produced lower fixed nitrogen protein yield compared to Eastern Canada. Seed protein quality, quantified with the 11S:7S ratio, was higher in Western Canada compared to Eastern Canada. Plant breeders and growers may need to select higher protein cultivars, at the cost of lower yield, if the soybean industry is unable to exploit the protein quality advantage in Western Canada.

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Soybean Yield and Seed Composition Changes in Response to Increasing Atmospheric CO2 Concentration in Short-Season Canada

Cited by 12 publications

References 44 publications

Data-driven projections suggest large opportunities to improve Europe’s soybean self-sufficiency under climate change

Data-driven projections suggest large opportunities to improve Europe’s soybean self-sufficiency under climate change

Climate conditions in the near-term, mid-term and distant future for growing soybeans in Canada

Soybean seed protein content is lower but protein quality is higher in Western Canada compared with Eastern Canada

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