| 石灰性紫色土壤pH及矫治措施对甜橙叶片过氧化物酶和过氧化氢酶的影响 |
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| 引用本文： | 邓烈,何绍兰,李学柱.石灰性紫色土壤pH及矫治措施对甜橙叶片过氧化物酶和过氧化氢酶的影响[J].西南农业大学学报,1991(1). |
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| 作者姓名： | 邓烈 何绍兰 李学柱 |
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| 作者单位： | 中国农业科学院柑桔研究所
(邓烈，何绍兰)，中国农业科学院柑桔研究所(李学柱) |
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| 摘 要： | 枳壳、红桔和香橙砧木的伏令夏橙叶片过氧化物酶和过氧化氢酶活性与紫色土壤pH 均呈极显著幂函数负相关。土壤pH 不但影响过氧化物酶活性,也引起过氧化物酶同工酶谱带数和活性的变化。三种砧木中,以香橙最耐碱,枳壳最不耐碱,砧木既影响着吸收和向叶片输送的总铁量,也可能影响铁元素的有效性。本试验所采用的四种矫治措施,均不同程度地提高了叶片中这两种酶的活性,表明确实具有明显的生理作用。
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| 关 键 词： | 柑桔属 土壤酸碱度 酶 缺铁失绿 |
THE EFFECTS OF SOIL pH IN THE CALCAREOUS PURPLE SOIL AND THE METHODS FOR ITS CORRECTION ON PEROXIDASE AND CATALASE IN LEAVES OF YOUNG ORANGE TREES |
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| Deng Lie He Shaolan Li Xuezhn.THE EFFECTS OF SOIL pH IN THE CALCAREOUS PURPLE SOIL AND THE METHODS FOR ITS CORRECTION ON PEROXIDASE AND CATALASE IN LEAVES OF YOUNG ORANGE TREES[J].Journal of Southwest Agricultural University,1991(1). |
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| Authors: | Deng Lie He Shaolan Li Xuezhn |
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| Abstract: | The soil pH in calcareous purple soil were negatively correlated bypower function with the activity of peroxidase ard catalase in theleaves of young citrus trees on three rootstocks.Soil pH not only affectedthe activity of peroxidase but also resutlted in a change in isoperoxidaseband number.Of the three rootstocks studied,Xiangchen(C.Junos) appe-ared to be most tolerant to high soil pH,followed by Hongju(C.tanger-ina),while trifoliata orange(Poncirus trifoliata) was the least tolerant.The rootstocks may affect not only the uptake of Fe,but also its translo-cation to the leaves.They may influence the availability of Fe as well.The four methods adopted in this study to correct iron deficiencyin calcareous soils,i.e.application of sulphur and sulphuric acid,flankgrafting to alkaline-tolerant rootstocks,sand furrow formation in therooting soil and application of FeSO_4,all enhanced the activity of peroxi-dase and catalase in the leaves of Jinchen orange(C.sinensis) on trifoliataoranges rootstock to varying extent and increased the number of theirisoperoxidase bands,hence suggesting that these methods have marked phsio-logical effects in correcting iron-deficiency chlorosis in citrus crops. |
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| Keywords: | citrus soil reaction enzyme iron chlorosis |
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