Genetic progress battles climate variability: drivers of soybean yield gains in China from 2006 to 2020
Abstract While improvement of soybean productivity under a changing climate will be integral to ensuring sustainable food security, the relative importance of genetic progress attributed to historical yield gains remains uncertain. Here, we compiled 16,934 cultivar-site-year observations from experiments during the period of 2006–2020 to dissect effects of genetic progress and climate variability on China’s soybean yield gains over time. Over the past 15 years, mean yields in the Northeast China (NEC), Huang-Huai-Hai Plain (HHH), and Southern Multi-cropping Region (SMR) were 2830, 2852, and 2554 kg $ ha^{−1} $, respectively. Our findings show that genetic progress contributed significantly to yield gains, although underpinning mechanisms varied regionally. Increased pod number per plant (PNPP) drove yield gains in the NEC, while both PNPP and 100-grain weight (100-GW) contributed to yield gains in the HHH. In all regions, incremental gains in the reproductive growing periods increased PNPP, 100-GW, and yields. While heat stress in the reproductive period reduced average yields in all regions, superior yielding cultivars (top 25%) in the HHH and SMR were less sensitive to heat stress during the reproductive phases, indicating that the higher yielding cultivars benefited from genetic improvement in heat stress tolerance. Our results highlight the importance of genetic improvements in enabling sustainable food security under global warming and increasingly frequent heat stress..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:43 |
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| Enthalten in: |
Agronomy for sustainable development - 43(2023), 4 vom: 01. Aug. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Li [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Themen: |
Cultivar |
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| Anmerkungen: |
© INRAE and Springer-Verlag France SAS, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| doi: |
10.1007/s13593-023-00905-9 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Abstract While improvement of soybean productivity under a changing climate will be integral to ensuring sustainable food security, the relative importance of genetic progress attributed to historical yield gains remains uncertain. Here, we compiled 16,934 cultivar-site-year observations from experiments during the period of 2006–2020 to dissect effects of genetic progress and climate variability on China’s soybean yield gains over time. Over the past 15 years, mean yields in the Northeast China (NEC), Huang-Huai-Hai Plain (HHH), and Southern Multi-cropping Region (SMR) were 2830, 2852, and 2554 kg $ ha^{−1} $, respectively. Our findings show that genetic progress contributed significantly to yield gains, although underpinning mechanisms varied regionally. Increased pod number per plant (PNPP) drove yield gains in the NEC, while both PNPP and 100-grain weight (100-GW) contributed to yield gains in the HHH. In all regions, incremental gains in the reproductive growing periods increased PNPP, 100-GW, and yields. While heat stress in the reproductive period reduced average yields in all regions, superior yielding cultivars (top 25%) in the HHH and SMR were less sensitive to heat stress during the reproductive phases, indicating that the higher yielding cultivars benefited from genetic improvement in heat stress tolerance. Our results highlight the importance of genetic improvements in enabling sustainable food security under global warming and increasingly frequent heat stress. | ||
| 650 | 4 | |a Yields | |
| 650 | 4 | |a Cultivar | |
| 650 | 4 | |a Genetic progress | |
| 650 | 4 | |a Phenology | |
| 650 | 4 | |a Extreme weather | |
| 650 | 4 | |a Heat stress | |
| 700 | 1 | |a Zheng, Haoyu |4 aut | |
| 700 | 1 | |a Li, Wenjie |4 aut | |
| 700 | 1 | |a Olesen, Jørgen Eivind |4 aut | |
| 700 | 1 | |a Harrison, Matthew Tom |4 aut | |
| 700 | 1 | |a Bai, Zhiyuan |4 aut | |
| 700 | 1 | |a Zou, Jun |4 aut | |
| 700 | 1 | |a Zheng, Axiang |4 aut | |
| 700 | 1 | |a Bernacchi, Carl |4 aut | |
| 700 | 1 | |a Xu, Xingyao |4 aut | |
| 700 | 1 | |a Peng, Bin |4 aut | |
| 700 | 1 | |a Liu, Ke |4 aut | |
| 700 | 1 | |a Chen, Fu |4 aut | |
| 700 | 1 | |a Yin, Xiaogang |0 (orcid)0000-0001-9925-4585 |4 aut | |
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