| 殷业超,董敬超,张宇,王力夫,王腾蛟,张诗行,高志勇,高磊磊,吴金鑫,于树涛.镉胁迫下两种不同耐受性花生农艺性状与抗氧化酶活性分析[J].农业环境科学学报,2025,44(6):1451-1457. |
| 镉胁迫下两种不同耐受性花生农艺性状与抗氧化酶活性分析 |
| Analysis of agronomic traits and antioxidant enzyme activities under cadmium stress in two different tolerant peanuts |
| 投稿时间：2024-07-26 |
| DOI：10.11654/jaes.2024-0661 |
| 中文关键词: 镉胁迫 耐受性 花生 农艺性状 生理指标 |
| 英文关键词: cadmium stress tolerance peanut agronomic trait physiological indicator |
| 基金项目:国家现代农业产业技术体系项目（CARS-13）；辽宁省种质创新藏粮于技专项计划项目（2023JH1/10200002）；辽宁省农业科学院院长基金项目（2023QN2414） |
| 作者 | 单位 | E-mail | | 殷业超 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | | | 董敬超 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | | | 张宇 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | | | 王力夫 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | | | 王腾蛟 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | | | 张诗行 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | | | 高志勇 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | | | 高磊磊 | 吉林农业大学农学院, 长春 130118 | | | 吴金鑫 | 吉林农业大学农学院, 长春 130118 | | | 于树涛 | 辽宁省沙地治理与利用研究所, 辽宁 阜新 123000 | shutaoyu@163.com |
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| 中文摘要: |
| 为分析镉胁迫下不同花生品种在关键生育期的表型、产量和生理指标的响应差异，本试验以两个不同耐受性花生品种为材料，在关键生育时期对种植土壤进行镉胁迫（0.5、1、2 mg·kg-1）处理，对各项指标进行测定。结果表明：不同耐受性花生品种受到镉胁迫后，其农艺性状变化趋势有所不同。随镉胁迫程度升高，耐镉品种主茎高、侧枝长、总分枝数呈升高趋势，在土壤镉含量达到2 mg·kg-1时均达到最大，不耐镉品种则呈先升高后降低的趋势。镉胁迫对两品种单果、双果数量无影响，总果质量、饱果数影响显著。随镉胁迫程度升高，耐镉品种和不耐镉品种的总果质量均呈先升高再降低的趋势，最大增幅为68.12%和72.81%，饱果数量均显著降低，最大降幅达18.00%和29.91%。不同耐受性品种的籽仁对镉的积累量及变化趋势不同。耐镉品种籽仁镉积累量呈先升高后平稳不变的趋势，不耐镉品种呈逐渐升高的趋势。两品种花生的膜脂耐受性不同，各生育时期丙二醛（MDA）含量差异显著，耐镉品种较不耐镉品种具有更高的膜脂耐受性。两品种间过氧化物酶（POD）活性差异明显，耐镉品种POD活性显著高于不耐镉品种。研究表明，不同镉耐受性花生品种在农艺性状、生理响应方面均存在明显差异，可以依据生产需要，在花生关键生育期进行适时的调控干预，以保证食用型花生的安全性。 |
| 英文摘要: |
| To analyze the differences in the response of different peanut varieties to cadmium stress in terms of phenotypic, yield and physiological indices during the critical reproductive period. Using different tolerant peanut varieties as materials, treatment of planting soil with different content of cadmium stress at critical reproductive periods, measurement of indicators.The results show：trends in agronomic traits differed among tolerant peanut varieties subjected to cadmium stress. Cadmium-tolerant varieties showed an increasing trend in main stem height, lateral branch length, and total number of branches, soil cadmium content reached a maximum at 2 mg · kg-1 in all cases,cadmium-intolerant varieties showed an increasing and then decreasing trend after cadmium stress. There was no effect on the number of single and double fruits of the two varieties, and the total fruit weight and the number of full fruits were significantly affected. The total fruit weight all showed a trend of increasing and then decreasing, with maximum increases of 68.12% and 72.81%, the number of full fruits were significantly reduced, with maximum decreases of 18.00% and 29.91%. The kernels of different tolerant varieties showed different accumulation and trends of cadmium.Cadmium accumulation in kernels of cadmium-tolerant varieties showed a trend of increasing and then remaining stable, while cadmium-intolerant varieties showed a trend of gradually increasing.The two varieties of peanut differed in their membrane lipid tolerance, and the malondialdehyde（MDA）content varied significantly among the reproductive periods, cadmium-tolerant varieties had higher membrane lipid tolerance than cadmium-intolerant varieties. Peroxidase（POD）activity differed significantly between the two varieties, cadmium-tolerant varieties had significantly higher POD activity than cadmium-intolerant varieties and had higher cadmium stress tolerance. In summary. There were significant differences in agronomic traits and physiological responses among tolerant peanut varieties, according to the production needs, timely regulatory interventions during critical peanut reproductive periods, to ensure the safety of edible peanuts. |
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