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摘要[目的]研究不同浓度NaCl和PEG6000对高雪轮、矮雪轮、五彩石竹、须苞石竹、麦仙翁和花园鼠尾草6种花卉种子萌发的影响，了解6种花卉种子对盐碱和干旱的适应性。[方法]对6种花卉种子进行不同浓度NaCl和PEG 6000胁迫处理，研究6种花卉种子在胁迫下的萌发特性。[结果]当NaCl浓度大于200 mmol/L时，明显抑制了高雪轮和矮雪轮种子的萌发；浓度大于300 mmol/L时，明显抑制麦仙翁、五彩石竹、须苞石竹和花园鼠尾草种子的萌发。当PEG6000浓度大于5%时，明显抑制花园鼠尾草种子的萌发；浓度大于20%时，明显抑制高雪轮种子的萌发；浓度大于25%时，明显抑制麦仙翁、须苞石竹、五彩石竹和矮雪轮种子的萌发。[结论] 6种花卉种子均可耐重度盐胁迫，麦仙翁、五彩石竹、须苞石竹和花园鼠尾草种子的耐盐性更强；麦仙翁、须苞石竹、五彩石竹和矮雪轮种子的耐旱性强，高雪轮种子的耐旱性较强，花园鼠尾草种子的耐旱性差。
关键词NaCl；PEG6000；胁迫；花卉种子；萌发
中图分类号S604+文献标识码A文章编号0517-6611（2014）21-06948-03
Effects of NACL and PEG on Seeds Germination of Six Flowers
ZHU Fangyan， GUO Jinli et al（College of Agronomy， Inner Mongolia Agricultural University， Hohhot， Inner Mongolia 010019）
Abstract[Objective] To study the effects of different concentration NaCl and PEG6000 on seeds germination of Silene pendula， Silene armeria， Agrostemma githago， Dianthus chinensis， Salvia farinacea， Dianthus chinensis， and obtain the adaptability of six flower seeds to salt and drought. [Method] Different concentrations of NaCl and PEG 6000 stress treatment were conducted on 6 flower seeds， the germination characteristics were studied. [Result] The results showed that： when NaCl solution concentration was more than 200 mmol/L， it inhibited the seed germination significantly in Silene pendula and Silene armeria； when the concentration was greater than 300 mmol/L， it significantly inhibited the seed germination in Agrostemma githago， Dianthus chinensis， Salvia farinacea， and Dianthus chinensis. When the solution concentration of PEG6000 was greater than 5%， it inhibited the seed germination of Dianthus chinensis； when the solution concentration was greater than 20%， it inhibited the seed germination in Silene armeria； when the solution concentration was greater than 25%， it inhibited the seed germination in Agrostemma githago， Dianthus chinensis， Salvia farinacea， and Silene pendula. [Conclusion] Seeds of Agrostemma githago， Dianthus chinensis， Salvia farinacea， Dianthus barbatus have stronger salt tolerance ability； seeds of Silene pendula， Agrostemma githago， Dianthus chinensis， Dianthus barbatus have the strongest drought tolerance ability， seeds of Silene armeria take the second place， and seeds of Salvia farinacea are the poorest.
Key wordsNaCl； PEG6000； Stress； Flower seeds； Germination
收稿日期20140620种子萌发是植物生活史中的重要阶段[1]。在种子萌发时，干旱和盐分是影响植物种子萌发的关键性因素，决定着一些植物能否成功在干旱、盐渍环境中定居[2-4]，了解花卉种子对干旱和盐分土地的适应能力对于植物的生存具有重要意义。为此，笔者研究不同浓度NaCl和PEG6000溶液对矮雪轮（Silene pendula）、高雪轮（Silene armeria）、麦仙翁（Agrostemma githago L.）、五彩石竹（Dianthus Chinensis）、须苞石竹（Dianthus barbatus）和花园鼠尾草（Salvia farinacea）种子萌发的影响，了解6种花卉种子在不同干旱和盐胁迫下的适应能力，为生产实践提供理论依据。
关键词NaCl；PEG6000；胁迫；花卉种子；萌发
中图分类号S604+文献标识码A文章编号0517-6611（2014）21-06948-03
Effects of NACL and PEG on Seeds Germination of Six Flowers
ZHU Fangyan， GUO Jinli et al（College of Agronomy， Inner Mongolia Agricultural University， Hohhot， Inner Mongolia 010019）
Abstract[Objective] To study the effects of different concentration NaCl and PEG6000 on seeds germination of Silene pendula， Silene armeria， Agrostemma githago， Dianthus chinensis， Salvia farinacea， Dianthus chinensis， and obtain the adaptability of six flower seeds to salt and drought. [Method] Different concentrations of NaCl and PEG 6000 stress treatment were conducted on 6 flower seeds， the germination characteristics were studied. [Result] The results showed that： when NaCl solution concentration was more than 200 mmol/L， it inhibited the seed germination significantly in Silene pendula and Silene armeria； when the concentration was greater than 300 mmol/L， it significantly inhibited the seed germination in Agrostemma githago， Dianthus chinensis， Salvia farinacea， and Dianthus chinensis. When the solution concentration of PEG6000 was greater than 5%， it inhibited the seed germination of Dianthus chinensis； when the solution concentration was greater than 20%， it inhibited the seed germination in Silene armeria； when the solution concentration was greater than 25%， it inhibited the seed germination in Agrostemma githago， Dianthus chinensis， Salvia farinacea， and Silene pendula. [Conclusion] Seeds of Agrostemma githago， Dianthus chinensis， Salvia farinacea， Dianthus barbatus have stronger salt tolerance ability； seeds of Silene pendula， Agrostemma githago， Dianthus chinensis， Dianthus barbatus have the strongest drought tolerance ability， seeds of Silene armeria take the second place， and seeds of Salvia farinacea are the poorest.
Key wordsNaCl； PEG6000； Stress； Flower seeds； Germination
收稿日期20140620种子萌发是植物生活史中的重要阶段[1]。在种子萌发时，干旱和盐分是影响植物种子萌发的关键性因素，决定着一些植物能否成功在干旱、盐渍环境中定居[2-4]，了解花卉种子对干旱和盐分土地的适应能力对于植物的生存具有重要意义。为此，笔者研究不同浓度NaCl和PEG6000溶液对矮雪轮（Silene pendula）、高雪轮（Silene armeria）、麦仙翁（Agrostemma githago L.）、五彩石竹（Dianthus Chinensis）、须苞石竹（Dianthus barbatus）和花园鼠尾草（Salvia farinacea）种子萌发的影响，了解6种花卉种子在不同干旱和盐胁迫下的适应能力，为生产实践提供理论依据。