| 土壤干旱与盐胁迫对球花石楠幼苗生理特性的影响 |
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| 引用本文： | 黄晓霞,黄大韧,杨自云,高昆,程小毛.土壤干旱与盐胁迫对球花石楠幼苗生理特性的影响[J].北方园艺,2010(21):87-89. |
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| 作者姓名： | 黄晓霞 黄大韧 杨自云 高昆 程小毛 |
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| 作者单位： | 西南林业大学,园林学院,云南,昆明,650224;西南林业大学,园林学院,云南,昆明,650224;西南林业大学,园林学院,云南,昆明,650224;西南林业大学,园林学院,云南,昆明,650224;西南林业大学,园林学院,云南,昆明,650224 |
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| 基金项目： | 云南省部级重点学科省高校重点实验室及校实验室共享平台资助项目 |
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| 摘 要： | 以球花石楠2 a生实生苗为试材,分别进行良好水分处理(100%田间持水量),干旱处理(50%田间持水量)及盐处理(0.1 mol/L NaCl溶液),测定其部分生理生化指标。结果表明:干旱及盐胁迫引起植株光合色素含量的改变,叶绿素含量及类胡萝卜素含量在干旱胁迫下均有所降低,而在盐胁迫下均有所增加。盐胁迫刺激了膜质过氧化产物丙二醛含量的增加,同时也显著提高了过氧化氢酶(CAT)和抗坏血酸过氧化物酶(APX)的活性;干旱胁迫仅增加了过氧化氢酶(CAT)的活性,对丙二醛含量的影响不显著;渗透调节物质脯胺酸含量在干旱胁迫和盐胁迫下均显著增加。此外,综合所测指标分析,盐胁迫对球花石楠幼苗的影响要大于干旱胁迫。
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| 关 键 词： | 球花石楠幼苗 干旱胁迫 盐胁迫 生理生化 |
Physiological Traits of Photinia glomerata Seedlings as Affected by Soil Drought and Salt Stress |
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| HUANG Xiao-xia,HUANG Da-ren,YANG Zi-yun,GAO Kun,CHENG Xiao-mao.Physiological Traits of Photinia glomerata Seedlings as Affected by Soil Drought and Salt Stress[J].Northern Horticulture,2010(21):87-89. |
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| Authors: | HUANG Xiao-xia HUANG Da-ren YANG Zi-yun GAO Kun CHENG Xiao-mao |
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| Institution: | HUANG Xiao-xia,HUANG Da-ren,YANG Zi-yun,GAO Kun,CHENG Xiao-mao(Faculty of Landscape Architecture,Southwest Forestry University,Kunming,Yunnan 650224) |
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| Abstract: | The two-year old seedlings of Photinia glomerata Rehd.et Wils.as experiment materials,the physiological traits as affected by drought and salt under three treatments(well-watered,100%field capacity;drought stress,50%field capacity;salt stress by 0.1 mol/L NaCl solution) were studied.The results showed that the contents of photosynthetic pigments were very different under three treatments.Compared with control treatment,the contents of chlorophyll and carotenoid were lower under drought treatment while highe... |
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| Keywords: | Photinia glomerata seedlings drought stress salt stress physiology and biochemistry |
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