| 水杨酸浸种对甜玉米种子萌发及生理特性的影响 |
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| 引用本文： | 王芳,庞自学,王汉宁.水杨酸浸种对甜玉米种子萌发及生理特性的影响[J].玉米科学,2012,20(4):74-77. |
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| 作者姓名： | 王芳 庞自学 王汉宁 |
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| 作者单位： | 1. 甘肃农业大学农学院/甘肃省干旱生境作物学重点实验室,兰州,730070
2. 甘肃省陇西县畜牧兽医局动物卫生监督所,甘肃陇西,748100 |
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| 基金项目： | 甘肃农业大学盛彤笙科技创新基金(GSAU-STS-1229)、甘肃省科技攻关(2GS064-A41-001-05)、科技部成果转化资金项目(2010GB2G100484) |
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| 摘 要： | 用不同浓度(0.25、0.5、0.75、1.0、1.25、1.5 mmol/L)的水杨酸(SA)溶液浸泡处理甜玉米种子进行发芽试验,统计种子萌发情况,分析幼苗相关生理指标的变化。结果表明,较低浓度的水杨酸溶液(0.25～0.75 mmol/L)处理有利于甜玉米种子的萌发,能有效提高种子发芽率、发芽势及发芽指数,提高可溶性糖和脯氨酸含量,增强幼苗中过氧化物酶(POD)活性,降低淀粉酶活性;较高浓度的水杨酸溶液(1.25～1.5 mmol/L)抑制甜玉米的萌发,与对照相比降低幼苗可溶性糖含量,增强淀粉酶活性,1.5 mmol/L水杨酸溶液处理降低POD活性及脯氨酸含量。综合各指标,在生产中建议使用0.25～0.75 mmol/L水杨酸溶液处理种子,可促进种子萌发,调节酶活性,提高植物对逆境的抗性。
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| 关 键 词： | 甜玉米 水杨酸 种子萌发 生理特性 |
| 收稿时间： | 8/8/2011 12:00:00 AM |
| 修稿时间： | 7/6/2012 12:00:00 AM |
Effects of Salicylic Acid Pretreatment on the Seeds Germination and Physiological Characteristics of Sweet Corn |
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| WANG Fang,PANG Zi-xue,WANG Han-ning,MU Yan-zhao and LI Hong-bin.Effects of Salicylic Acid Pretreatment on the Seeds Germination and Physiological Characteristics of Sweet Corn[J].Journal of Maize Sciences,2012,20(4):74-77. |
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| Authors: | WANG Fang PANG Zi-xue WANG Han-ning MU Yan-zhao and LI Hong-bin |
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| Institution: | Department of Agronomy, Gansu Agricultural University/Drought Environment Crop Cultivation of Key Laboratory in Gansu Province, Lanzhou 730070;Department of Agronomy, Gansu Agricultural University/Drought Environment Crop Cultivation of Key Laboratory in Gansu Province, Lanzhou 730070;Department of Agronomy, Gansu Agricultural University/Drought Environment Crop Cultivation of Key Laboratory in Gansu Province, Lanzhou 730070;Department of Agronomy, Gansu Agricultural University/Drought Environment Crop Cultivation of Key Laboratory in Gansu Province, Lanzhou 730070;Animal Health Inspection Agency, Animal Husbandry and Veterinary Bureau of Longxi County, Gansu Province, Longxi 748100, China |
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| Abstract: | The sweet corn seeds were treated with different concentration solution(0.25, 0.5, 0.75, 1.0, 1.25, 1.5 mmol/L) of salicylic acid(SA), and seed germination experiments were tested. Some of physiological characters of sweet corn seedling were measured after treatment. The results showed that a low concentration of salicylic acid solution(0.25 - 0.75 mmol/L) could promote seed germination and enhance POD activity, increase soluble sugar and proline content, and reduce amylase activity of sweet corn. But higher levels concentration of salicylic acid solution(1.25 - 1.5 mmol/L) could suppress seeds germination rate of sweet corn, the POD activity decreased, amylase activity enhanced, proline and soluble sugar content are reduced. |
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| Keywords: | Sweet corn Salicylic acid Seeds germination Physiological characteristic |
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