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不同应对措施对高温胁迫下夏玉米生长的影响

Effect of Different Countermeasures on the Growth of Summer Maize under High Temperature Stress

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通过文献检索共获得52篇缓解夏玉米受高温影响的相关试验性文献,以不采取任何措施为对照,基于Meta分析方法定量研究高温胁迫下采取不同应对措施对夏玉米的影响.结果表明,高温胁迫下,选用耐热型夏玉米品种对产量的提升效果最优,达27.62%,选用耐热性品种主要提高夏玉米的授粉结实能力.施用植物生长调节剂、施肥和调整播期可分别使夏玉米产量提高23.55%、19.15%和13.15%,施用植物生长调节剂主要影响穗位叶抗氧化酶活性,施肥对穗位叶净光合速率的提高效果最突出.综合分析表明,选用耐热型品种是缓解夏玉米高温热害最直接有效的方法,在此基础上可通过施用植物生长调节剂、施肥和调整播期进一步缓解高温所带来的不利影响.
This study aims to quantify the effect of different response measures on high temperature in summer maize by Meta-analysis method with no measures as control.The results showed that,the selection of heat-resis-tant varieties had the best effect of enhancing summer maize yield.Compared with the heat-sensitive varieties,the selection of heat-resistant varieties had the most positive effect on the pollination and setting capacity.The applica-tion of plant growth regulators mainly affected yield and activities of oxidase,while fertilization mainly affectednet photosynthetic rate.The selection of heat-resistant varieties is the most effective approach to alleviate the heat dam-age of summer maize.Additionally,applying plant growth regulators,fertilizing,and adjusting the sowing period can further alleviate the adverse effects of heat stress.

Summer maizeHigh temperature stressCountermeasureMeta-analysis

刘忠贤、张琪、杨再强、姚嫚

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南京信息工程大学应用气象学院,南京 210044

南京信息工程大学气象灾害预报预警与评估协同创新中心/江苏省农业气象重点实验室,南京 210044

夏玉米 高温胁迫 应对措施 Meta分析

国家自然科学基金国家重点研发计划

419774102019YFC1510205

2024

玉米科学
吉林省农业科学院 国家玉米工程技术研究中心(吉林) 国家玉米改良中心 中国农业科技东北创新中心

玉米科学

CSTPCD北大核心
影响因子:1.163
ISSN:1005-0906
年,卷(期):2024.32(3)
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