| 不同耐旱基因型玉米伤流及其伤流液中碳、氮代谢相关成分含量分析 |
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| 引用本文： | 刘胜群,张天柱,闫璇铃,宋凤斌,周璇,朱先灿,刘铁东. 不同耐旱基因型玉米伤流及其伤流液中碳、氮代谢相关成分含量分析[J]. 农业系统科学与综合研究, 2012, 0(1): 10-14 |
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| 作者姓名： | 刘胜群 张天柱 闫璇铃 宋凤斌 周璇 朱先灿 刘铁东 |
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| 作者单位： | 中国科学院东北地理与农业生态研究所;长春中医药大学药学院;长春市农民职业教育中心;中国科学院研究生院 |
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| 基金项目： | 国家自然科学基金项目(31000690);吉林省科技发展计划项目(20090166) |
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| 摘 要： | 利用田间实验,以耐旱基因型玉米"掖单13"和不耐旱基因型玉米"丹玉13"为试材,于苗期、拔节期、孕穗期和灌浆期取样,测定伤流强度和伤流液中的可溶性糖、可溶蛋白含量和游离氨基酸含量,以期从伤流液角度分析玉米耐旱机理。结果显示,生育后期玉米伤流强度小于生育前期;伤流液中的可溶性糖含量是苗期最低,拔节期、孕穗期和灌浆期其含量较高;苗期和灌浆期伤流液中的可溶蛋白和游离氨基酸含量较高,而拔节期和孕穗期其含量相对较低。耐旱基因型玉米在拔节期、孕穗期和灌浆期其伤流液中的可溶性糖含量和游离氨基酸含量显著高于不耐旱基因型玉米(p<0.05)。图4,参23。
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| 关 键 词： | 玉米 耐旱性 伤流液 |
Bleeding Sap and Its Nutrient Concentrations Related to Carbon and Nitrogen Metabolism of Maize Genotypes with Different Drought-tolerance |
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| LIU Sheng-qun,ZHANG Tian-zhu,YAN Xuan-ling,SONG Feng-bin,ZHOU Xuan,ZHU Xian-can,LIU Tie-dong. Bleeding Sap and Its Nutrient Concentrations Related to Carbon and Nitrogen Metabolism of Maize Genotypes with Different Drought-tolerance[J]. System Sciemces and Comprehensive Studies In Agriculture, 2012, 0(1): 10-14 |
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| Authors: | LIU Sheng-qun ZHANG Tian-zhu YAN Xuan-ling SONG Feng-bin ZHOU Xuan ZHU Xian-can LIU Tie-dong |
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| Affiliation: | 1,4(1.Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Changchun 130012,China; 2.School of Pharmaceutical Sciences Changchun University of Chinese medicine,Changchun 130117,China; 3.Changchun Farmers Vocational Education Center,Changchun 130012,China; 4.Graduate School of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | Taking drought-tolerant maize variety Yedan-13 and drought-sensitive maize variety Danyu-13 as test materials,a field experiment was conducted to study the intensity and soluble sugar,soluble protein,and free amino acid contents in the bleeding sap at the seedling,jointing,booting,and filling stages,with an aim to understand the mechanisms of maize drought-tolerance from the viewpoint of bleeding sap.The results showed that the bleeding intensity was greater at seedling and jointing stages than at booting and filling stages.The soluble sugar content in the bleeding sap was the lowest at seedling stage but higher at jointing,booting,and filling stages,whereas the soluble protein and free amino acid contents were higher at seedling and filling stages but relatively lower at jointing and booting stages.As compared with drought-sensitive maize variety,drought-tolerant maize variety had significantly higher contents of soluble sugar and free amino acid contents in the bleeding sap at jointing,booting,and filling stages(p<0.05). |
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| Keywords: | maize drought-tolerance bleeding sap |
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