Effect of CO_2 Elevation on Root Growth and Its Relationship with Indole Acetic Acid and Ethylene in Tomato Seedlings
查看参考文献50篇
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文摘
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A hydroponic experiment was carried out to study the effect of elevated carbon dioxide (CO_2) on root growth of tomato seedlings. Compared with the control (350 μL L~(-1)), CO_2 enrichment (800 μL L~(-1)) significantly increased the dry matter of both shoot and root, the ratio of root to shoot, total root length, root surface area, root diameter, root volume, and root tip numbers, which are important for forming a strong root system. The elevated CO_2 treatment also significantly improved root hair development and elongation, thus enhancing nutrient uptake. Increased indole acetic acid concentration in plant tissues and ethylene release in the elevated CO_2 treatment might have resulted in root growth enhancement and root hair development and elongation. |
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来源
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Pedosphere
,2009,19(5):570-576 【核心库】
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DOI
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10.1016/s1002-0160(09)60151-x
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关键词
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CO_2 enrichment
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hormones
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plant growth
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root development
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root hairs
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地址
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1.
College of Natural Resources and Environmental Science, Zhejiang University, Ministry of Education, Key Laboratory of Environmental Remediation and Ecosystem Health, Zhejiang, Hangzhou, 310029
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College of Environmental Science and Engineering, Zhejiang Gongshang University, Zhejiang, Hangzhou, 310035
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College of Natural Resources and Environmental Science, Zhejiang University, Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, Zhejiang, Hangzhou, 310029
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Scion, Private Bag 3020, Rotorua, New Zealand, Rotorua
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1002-0160 |
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学科
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农业基础科学 |
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基金
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国家自然科学基金
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国家973计划
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the Major Research Program of Zhejiang Province
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the National "Eleventh Five Years Plan" Key Project on Science and Technology of China
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文献收藏号
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CSCD:3774664
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