华北农学报 ›› 2008, Vol. 23 ›› Issue (2): 34-37. doi: 10.7668/hbnxb.2008.02.008

所属专题: 黄瓜 盐碱胁迫

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NaCl胁迫对黄瓜嫁接苗耐盐性的影响

姜涛1, 霍秀文1, 王淑英2, 刘建文1, 徐宝平1   

  1. 1. 内蒙古农业大学, 农学院, 内蒙古, 呼和浩特, 010019;
    2. 呼和浩特市赛罕区蔬菜局, 内蒙古, 呼和浩特, 010020
  • 收稿日期:2007-10-12 出版日期:2008-04-28
  • 通讯作者: 霍秀文(1968- ).女.内蒙古呼和浩特人.副教授.博士.主要从事蔬菜种质资源与育种研究。
  • 作者简介:姜涛(1982-),男,内蒙古包头人,在读硕士,主要从事蔬菜种质资源与育种研究.

Effects of NaCl Stress on Salt Tolerance of Grafted Cucumber Seedlings

JIANG Tao1, HUO Xiu-wen1, WANG Shu-ying2, LIU Jian-wen1, XU Bao-ping1   

  1. 1. College of Agronomy Inner Mongolia Agricultural University, Huhhot 010020, China;
    2. Huhhot Saihan District Vegetable Bureau, Huhhot 010019, China
  • Received:2007-10-12 Published:2008-04-28

摘要: 为阐明嫁接对黄瓜耐盐性的影响。对日光温室黄瓜嫁接苗和自根苗在150 mmoL/L的NaCl胁迫下的保护酶活性、渗透调节物质及光合特性进行测定和比较。结果表明,黄瓜嫁接苗叶片中过氧化物酶(POD)、超氧化物歧化酶(SOD)、抗坏血酸过氧化物酶(APX)活性以及抗坏血酸(AsA)、叶绿素(Chl.)含量均明显高于自根苗;游离脯氨酸、可溶性蛋白质、可溶性糖含量均明显高于自根苗;净光合速率、气孔导度、胞间CO2浓度均明显高于自根苗;丙二醛(MDA)含量和气孔限制值低于自根苗。以上结果表明,嫁接苗能提高黄瓜的耐盐性。

关键词: 黄瓜, 嫁接苗, 耐盐性

Abstract: For clarifying the effect of grafting on cucumber salt tolerance,the activities of protective enzymes,contents of osmotic adjustment substances and photosynthetic characteristics were analysed respectively between grafted and scion-root cucumber seedlings under NaCl stress of 150 mmol/L in sunlight greenhouse.The results showed activities of peroxidase(POD),superoxide dismutase(SOD),ascorbate-specific peroxidase(APX),and content of ascorbic acid(AsA),chlorophyll in leaves of grafted seedlings were significantly higher than those of scion-root seedlings.The content of free proline,soluble protein,soluble suger in the leaves of grafted seedlings were significantly higher than those of scion-root seedlings.Net photosynthetic rate,stomatal conductance,intercellular CO2 concentration of grafted seedlings were significantly higher than those of scion-root seedlings.Malondiadehyde(MDA)content and stomata unitation of grafted seedlinds were lower than those of scion-root seedlings.These results indicated that grafted seedlings could,mprove cucumber salt tolerance under NaCl stress.

Key words: Cucumber, Grafted seedlings, NaCI tolerance

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引用本文

姜涛, 霍秀文, 王淑英, 刘建文, 徐宝平. NaCl胁迫对黄瓜嫁接苗耐盐性的影响[J]. 华北农学报, 2008, 23(2): 34-37. doi: 10.7668/hbnxb.2008.02.008.

JIANG Tao, HUO Xiu-wen, WANG Shu-ying, LIU Jian-wen, XU Bao-ping. Effects of NaCl Stress on Salt Tolerance of Grafted Cucumber Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 34-37. doi: 10.7668/hbnxb.2008.02.008.

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