文章摘要
范飞,李绍鹏,高新生,陈艳丽.DA-6缓解茄子幼苗高温胁迫研究初探[J].广东农业科学,2013,40(10):35-39
DA-6缓解茄子幼苗高温胁迫研究初探
Research about alleviating heat stress on eggplant seedlings by applying DA-6
  
DOI:
中文关键词: DA-6  茄子幼苗  高温胁迫
英文关键词: DA-6  eggplant seeding  heat stress
基金项目:海南省自然科学基金(808118);海南大学青年基金(qnjj1026);国家级园艺特色专业建设点(TS2343)
作者单位
范飞,李绍鹏,高新生,陈艳丽 海南大学热带作物种质资源保护与开发利用教育部重点实验室/海南大学园艺园林学院中国热带农业科学院橡胶研究所 
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中文摘要:
      通过对茄子幼苗喷施10尧20尧30尧40尧50 mg/L 5个不同浓度的DA-6袁再将茄子幼苗置于白天40益尧夜晚32益的高温下进行胁迫处理袁研究不同浓度DA-6对高温胁迫下的茄子幼苗电解质渗透率尧根系活力尧脯氨酸尧丙二醛尧叶绿素含量尧超氧阴离子产 生速率尧可溶性蛋白及保护酶活性影响遥结果表明院喷施DA-6的茄子幼苗相对于对照袁各项生理指标存在显著差异袁尤其是当DA-6浓度为20 mg/L时袁茄子幼苗的叶绿素含量尧根系活力尧EC值尧SOD活性尧脯氨酸含量尧MDA含量等指标综合反映较好袁且与其他处理差异显著遥因此袁DA-6能够缓解高温胁迫对茄子幼苗的影响袁且浓度以20 mg/L为宜遥
英文摘要:
      In this experiment, we sprayed DA-6 with different concentrations (10、20、30、40、50mg/L)on the eggplant seedings ,then we put the seedings under high temperature (40℃/32℃,day /night),we studied the effects of heat stress on the electrolyte permeability, root activity,MDA, proline, chlorophyll content, superoxide anion, soluble protein and the activity of protective enzyme of eggplant seedlings. The results showed that: the physiological parameters of the eggplant seedlings in different DA-6 treatments showed significant difference contrasting to that of CK, especially when the eggplant seedlings were spraied DA-6 with 20 mg/L, the chlorophyll content, root activity, electrolyte leakage,SOD, proline content and MDA content of the seedlings were suprior to that of other treatments with significant differences. In conclusion,Spraying DA-6 could alleviate the heat stress on eggplant Seedlings, and the suitable concentration of DA-6 was 20 mg/L.
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