| 不同氮源对红檬实生苗菌根依赖性的影响 |
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| 引用本文： | 赖毅,黄勤.不同氮源对红檬实生苗菌根依赖性的影响[J].中国南方果树,1994(4). |
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| 作者姓名： | 赖毅 黄勤 |
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| 作者单位： | 中国农业科学院柑桔研究所 |
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| 摘 要： | 将红檬实生苗培养于改良无土基质中，接种泡囊－丛枝菌根Ｇｌｏｍｕｓｃｉｔｒｏｃｏｌｕｍ，以不接种菌根为对照，并分别施用含氮量相等的３种氮肥，即硝酸按（ＮＯ３－Ｎ）、尿素（ＮＨ２－Ｎ）和硫酸铵（ＮＨ４－Ｎ）。接种菌根１６周后，施不同氮肥的红檬实生苗均有效地感染了菌根，并促进了植株的生长。试验证明，红实生苗施硝态氮（ＮＯ３－Ｎ）使植株的菌根依赖性有明显提高。
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| 关 键 词： | 氮源 泡囊－丛枝菌根 菌根依赖性 红檬 |
Effects of Different Nitrogen Sources on MycorrhizalDependency of Canton Lemon(Citrus limonia Osbeck)Seedlings |
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| Lai Yi and Huang Qin.Effects of Different Nitrogen Sources on MycorrhizalDependency of Canton Lemon(Citrus limonia Osbeck)Seedlings[J].South China Fruits,1994(4). |
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| Authors: | Lai Yi and Huang Qin |
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| Abstract: | Canton lemon(Citrus limomia Osbeck)seedlings grown in modified soillessmedium were inoculated with versicular-arbuscular mycorrhizal(VAM)fungus Glomuscitrocolum,and noninocuiated seedlings were used as control.Three equivalent N fertilizers,as ammoniurn nitrate(NO3-N),urea(NH2-N)and amrnonium shufate(NH4-N)wereseperately applied.All seedlings were effectively infected with mycorrhizae in 16 weeks afterVAM inoeulation and the plant growth had been promoted.The results showed that theapplication of NO3-N significantly enhnced the mycorrhizal dependency of plants. |
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| Keywords: | Nitrogen sources VAM Mycorrhizal dependency Canton lemon |
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