| 外源GA_3和SA对德国鸢尾耐盐性的影响 |
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| 引用本文： | 芦建国,仲玉婷.外源GA_3和SA对德国鸢尾耐盐性的影响[J].江西农业学报,2011,23(4):49-52,56. |
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| 作者姓名： | 芦建国 仲玉婷 |
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| 作者单位： | 南京林业大学风景林学院,江苏,南京,210037 |
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| 摘 要： | 为明确外源赤霉素(GA3)和水杨酸(SA)对园林植物耐盐性的诱导作用,以德国鸢尾为材料,在100 mmol/L的NaC l胁迫条件下,采用根际注射结合叶面喷施外源激素的方法,研究了不同浓度的外源GA3和SA对德国鸢尾的形态指标、盐害指数和生理指标的影响。结果表明,适宜浓度的外源GA3和SA能明显改善盐胁迫下德国鸢尾的生长状况,显著地提高了叶片叶绿素含量、超氧化物歧化酶(SOD)和过氧化物酶(POD)的活性,并降低了盐害指数、细胞膜透性和MDA含量,诱导植株增强对盐胁迫的抵抗能力。GA3最佳的浓度范围是100~200 mg/L,SA最佳的浓度为200 mg/L。
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| 关 键 词： | 赤霉素 水杨酸 德国鸢尾 耐盐性 |
Effects of Exogenous GA3 and SA on Salt Resistance of Iris germanica |
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| LU lian-guo,ZHONG Yu-ting.Effects of Exogenous GA3 and SA on Salt Resistance of Iris germanica[J].Acta Agriculturae Jiangxi,2011,23(4):49-52,56. |
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| Authors: | LU lian-guo ZHONG Yu-ting |
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| Institution: | * (College of Landscape Architecture,Nanjing Forestry University,Nanjing 210037,China) |
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| Abstract: | In order to ascertain the induced role of exogenous gibberellin(GA3) and salicylic acid(SA) on the salt resistance of the landscaping plants,the effects of different concentrations of exogenous GA3 and SA on the morphological index,salt-injury index and physiological parameters of Iris germanica under 100 mmol/L NaCl stress were studied by using the method of root injection and foliar spray.The results showed that proper concentrations of exogenous GA3 and SA could obviously improve the growth status of Iri... |
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| Keywords: | GA3 SA Iris germanica Salt resistance |
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