华北农学报 ›› 2014, Vol. 29 ›› Issue (5): 156-160. doi: 10.7668/hbnxb.2014.05.027

所属专题: 甜椒辣椒

• 论文 • 上一篇    下一篇

根区温度对辣椒幼苗生理特性的影响

廉勇1,2, 崔世茂1, 包秀霞3, 王葆生2   

  1. 1. 内蒙古农业大学 农学院, 内蒙古 呼和浩特 010019;
    2. 内蒙古农牧业科学院 蔬菜研究所, 内蒙古 呼和浩特 010031;
    3. 呼和浩特民族学院 环境工程系, 内蒙古 呼和浩特 010051
  • 收稿日期:2014-08-10 出版日期:2014-10-28
  • 通讯作者: 崔世茂(1961-), 男, 山西代县人, 教授, 博士, 博士生导师, 主要从事园艺作物抗逆生理和园艺设施及环境调控研究。
  • 作者简介:廉 勇(1981-), 男, 内蒙古科右中旗人, 助理研究员, 在读博士, 主要从事设施园艺和胡萝卜遗传育种研究。
  • 基金资助:
    国家自然科学基金项目(31060269);内蒙古科技厅应用技术研究项目(20120804)

Effects of Root Zone Temperature on Physiological Characteristics of Pepper Seedlings

LIAN Yong1,2, CUI Shi-mao1, BAO Xiu-xia3, WANG Bao-sheng2   

  1. 1. Agricultural College, Inner Mongolia Agricultural University, Huhhot 010019, China;
    2. Vegetable Institute, Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Huhhot 010031, China;
    3. Department of Environmental Engineering, Huhhot University for Nationalities, Huhhot 010051, China
  • Received:2014-08-10 Published:2014-10-28

摘要: 为探讨冬季日光温室土壤温度对作物水分吸收、保护酶、渗透调节物质以及质膜透性的影响,以辣椒品种长金、迅驰37-74和运驰37-82为研究试材,对20~22,14~16,10~12 ℃ 3个温度处理下辣椒幼苗茎叶和根系的含水量,叶片超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)活性,脯氨酸(Pro)、丙二醛(MDA)含量和渗透电解率质膜透性进行了测定。结果表明,随着根区温度的下降,辣椒幼苗含水量呈现下降趋势,其中10~12 ℃处理含水量最低;叶片SOD、POD和CAT活性表现为下降的趋势; Pro、MDA、超氧阴离子含量以及电解渗透率表现为逐渐升高的趋势。综上所述,10~12 ℃处理对辣椒幼苗生理生化特性和含水量影响程度明显高于处理20~22,14~16 ℃,以生理生化特性和含水量为衡量指标,根区温度14 ℃及以上时,辣椒植株可以保持正常的生长发育。

关键词: 根区温度, 辣椒, 幼苗, 生理特性

Abstract: To probe into the sunlight greenhouse soil temperature in the winter stress on crop water content,protective enzymes,osmolyte and membrane permeability in pepper,we comparatively studied three treatment(20-22,14-16,10-12 ℃),the water contents of seedling stems and roots,the activities of super oxede-dismutase(SOD),peroxidase(POD),catalase(CAT),proline(Pro),malondialdehyde(MDA)and electrolytic permeability contents were determined by using Changjin,Xunchi 37-74 and Yunchi 37-82 in pepper.The results showed that as the root zone temperature dropped the seedling water content appeared the tendency of decline,among water content was the lowest in 10-12 ℃ treatment.The activities of SOD,POD and CAT in leaf appeared the trend of decline.The contents of Pro,MDA and electrolytic perme ability appeared the trend of rising.In a word,10-12 ℃ treatment on influencing degree of water content,physiological and biochemical characteristics in pepper seedlings was significantly higher than 20-22,14-16 ℃ treatments.Taking physiological and biochemical characteristics as measurement index,we concluded that pepper could still keep its normal growth and development when the root zone temperature over 14 ℃.

Key words: The root zone temperature, Pepper, Seedling, Physiological characteristics

中图分类号: 

引用本文

廉勇, 崔世茂, 包秀霞, 王葆生. 根区温度对辣椒幼苗生理特性的影响[J]. 华北农学报, 2014, 29(5): 156-160. doi: 10.7668/hbnxb.2014.05.027.

LIAN Yong, CUI Shi-mao, BAO Xiu-xia, WANG Bao-sheng. Effects of Root Zone Temperature on Physiological Characteristics of Pepper Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(5): 156-160. doi: 10.7668/hbnxb.2014.05.027.

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