Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth Stage
Low temperatures have seriously affected crop growth owing to climate change and frequent extreme weather. Low-temperature disasters easily affect the early-growth stages of planted soybeans in Northeast China. In the present study, the comprehensive evaluation method using low-temperature (4 °C) si...
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| Format: | Article |
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MDPI AG
2023-06-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/13/7/1716 |
| _version_ | 1797590667044585472 |
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| author | Xin Wang Xiaomei Li Qi Zhou Shuang Song Shoukun Dong |
| author_facet | Xin Wang Xiaomei Li Qi Zhou Shuang Song Shoukun Dong |
| author_sort | Xin Wang |
| collection | DOAJ |
| description | Low temperatures have seriously affected crop growth owing to climate change and frequent extreme weather. Low-temperature disasters easily affect the early-growth stages of planted soybeans in Northeast China. In the present study, the comprehensive evaluation method using low-temperature (4 °C) simulation at soybean germination and seedling stages was used to compare soybean cultivars. The results revealed that low temperatures inhibited the germination ability of soybean seeds and prolonged the average germination time (about 7–13 days under low temperatures). Simultaneously, low-temperature stress at the seedling stage decreased plant height and dry weight, but accumulated proline and soluble sugar. The soluble protein content of most cultivars decreased at low temperatures. Peroxidase activity was significantly decreased in henong70, suinong82, and heinong83, and opposite in the other cultivars. Additionally, MDA content increased in cultivars heinong69, dongnong42, and dongnong55. The final comprehensive evaluation showed that Suinong42 had better low-temperature tolerance, whereas Kendou40 was more sensitive to low temperatures. The grey correlation analysis also showed that dry weight and proline can be used as the target traits for cultivar improvement. |
| first_indexed | 2024-03-11T01:23:47Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-11T01:23:47Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
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| series | Agronomy |
| spelling | doaj.art-ab6b5af0985045f68337b2269c9175292023-11-18T17:55:06ZengMDPI AGAgronomy2073-43952023-06-01137171610.3390/agronomy13071716Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth StageXin Wang0Xiaomei Li1Qi Zhou2Shuang Song3Shoukun Dong4Agricultural College, Northeast Agricultural University, Harbin 150030, ChinaAgriculture and Food Science and Technology Branch, Heilongjiang Agricultural Engineering Vocational College, Harbin 150088, ChinaAgricultural College, Northeast Agricultural University, Harbin 150030, ChinaAgricultural College, Northeast Agricultural University, Harbin 150030, ChinaAgricultural College, Northeast Agricultural University, Harbin 150030, ChinaLow temperatures have seriously affected crop growth owing to climate change and frequent extreme weather. Low-temperature disasters easily affect the early-growth stages of planted soybeans in Northeast China. In the present study, the comprehensive evaluation method using low-temperature (4 °C) simulation at soybean germination and seedling stages was used to compare soybean cultivars. The results revealed that low temperatures inhibited the germination ability of soybean seeds and prolonged the average germination time (about 7–13 days under low temperatures). Simultaneously, low-temperature stress at the seedling stage decreased plant height and dry weight, but accumulated proline and soluble sugar. The soluble protein content of most cultivars decreased at low temperatures. Peroxidase activity was significantly decreased in henong70, suinong82, and heinong83, and opposite in the other cultivars. Additionally, MDA content increased in cultivars heinong69, dongnong42, and dongnong55. The final comprehensive evaluation showed that Suinong42 had better low-temperature tolerance, whereas Kendou40 was more sensitive to low temperatures. The grey correlation analysis also showed that dry weight and proline can be used as the target traits for cultivar improvement.https://www.mdpi.com/2073-4395/13/7/1716soybeanlow temperaturebreedingcrop improvement |
| spellingShingle | Xin Wang Xiaomei Li Qi Zhou Shuang Song Shoukun Dong Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth Stage Agronomy soybean low temperature breeding crop improvement |
| title | Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth Stage |
| title_full | Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth Stage |
| title_fullStr | Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth Stage |
| title_full_unstemmed | Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth Stage |
| title_short | Comparison and Evaluation of Low-Temperature Tolerance of Different Soybean Cultivars during the Early-Growth Stage |
| title_sort | comparison and evaluation of low temperature tolerance of different soybean cultivars during the early growth stage |
| topic | soybean low temperature breeding crop improvement |
| url | https://www.mdpi.com/2073-4395/13/7/1716 |
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