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不同年代冬小麥品種葉綠素?zé)晒夂涂寡趸富钚苑治?/div>
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國(guó)家高技術(shù)研究發(fā)展計(jì)劃（863計(jì)劃）資助項(xiàng)目（2011AA100509,、2011AA100502）,、現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系建設(shè)專項(xiàng)資助項(xiàng)目（CARS-3-1-30）和公益性行業(yè)（農(nóng)業(yè)）科研專項(xiàng)資助項(xiàng)目（201203077）


Analysis of Chlorophyll Fluorescence and Antioxidative Enzymes Activities of Winter Wheat Cultivars Bred during Different Ages
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    摘要:

    選擇1949年以來(lái)河南中部麥區(qū)不同年代主栽的6個(gè)冬小麥品種為試驗(yàn)材料,，在不同灌溉條件下對(duì)生育后期冬小麥旗葉葉綠素?zé)晒馓匦院涂寡趸富钚宰兓?guī)律進(jìn)行了研究分析。結(jié)果表明：現(xiàn)代冬小麥品種的葉綠素含量增加,，為光合功能改善奠定了基礎(chǔ)；拔節(jié)期干旱脅迫下,，現(xiàn)代品種旗葉的原初光能轉(zhuǎn)化效率和潛在活性在開(kāi)花期高于早期品種,；在品種更替過(guò)程中，現(xiàn)代品種的丙二醛含量降低,，抗氧化酶酶促系統(tǒng)第一道防線的SOD活性快速升高并有效清除氧自由基,。早期品種在干旱脅迫下通過(guò)增加POD活性來(lái)抵御干旱。現(xiàn)代品種的CAT和APX活性少量增加就能及時(shí)清除過(guò)氧化物體和葉綠體內(nèi)活性氧自由基的積累,，使得抗氧化代謝維持在較高水平上,，以保證光合器官功能的正常進(jìn)行。

    Abstract:

    Six representative winter wheat cultivars released since 1949 in central Henan province were selected to study the effects of different water treatments on chlorophyll fluorescence characters and antioxidant enzyme activities in flag leaves during flowering and milky stages. The results showed that chlorophyll content index of winter wheat cultivars increased with years which set up the basis for improving the photosynthetic functions. Chlorophyll fluorescence parameters of winter cultivars bred in 1990s and after 1990s were higher than the early cultivars. The malondialdehyde content of the modern cultivars decreased and activities of superoxide dismutase increased more quickly after flowering stage, which showed stronger capacity of scavenging oxygen free radical. Peroxidase activities of the modern cultivars improved to resist droughts under drought stress. Activities of catalase and ascorbic acid peroxidase of the modern cultivars increased quickly to scavenge oxygen free radical which was helpful to the maintenance of stronger photosynthetic capability. 

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黃玲,高陽(yáng),邱新強(qiáng),李新強(qiáng),申孝軍,段愛(ài)旺.不同年代冬小麥品種葉綠素?zé)晒夂涂寡趸富钚苑治鯷J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(10):136-142. Huang Ling, Gao Yang, Qiu Xinqiang, Li Xinqiang, Shen Xiaojun, Duan Aiwang. Analysis of Chlorophyll Fluorescence and Antioxidative Enzymes Activities of Winter Wheat Cultivars Bred during Different Ages[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(10):136-142.

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  • 在線發(fā)布日期: 2013-10-14
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