| 钠盐对辣椒种子萌发和幼苗生长的影响 |
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| 引用本文： | 牛彩霞,郁继华,张韵,李建建,徐晓昀.钠盐对辣椒种子萌发和幼苗生长的影响[J].甘肃农业大学学报,2006,41(1):34-38. |
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| 作者姓名： | 牛彩霞 郁继华 张韵 李建建 徐晓昀 |
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| 作者单位： | 甘肃农业大学农学院,甘肃,兰州,730070 |
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| 基金项目： | 国家863计划项目(2002AA2Z4191) |
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| 摘 要： | 研究了不同浓度的NaNO3、Na2SO4、NaCl对辣椒种子萌发及幼苗生长的影响.结果表明:3种盐浓度高于100mmol/L时,随着浓度的增加,种子的发芽率、胚根长、发芽指数、活力指数均下降;幼苗的株高、叶面积明显受到抑制,胁迫程度为NaCl>NaNO3>NaSO4;同时,辣椒幼苗叶片中MDA含量、细胞膜透性、可溶性糖含量均有不同程度的升高.
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| 关 键 词： | 辣椒 盐胁迫 种子萌发 幼苗生长 |
| 文章编号： | 1003-4315（2006）01-0034-05 |
| 收稿时间： | 2005-09-14 |
| 修稿时间： | 2005-09-14 |
Effects of salt stress on seed germination and seedling growth of pepper |
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| NIU Cai-xia,YU Ji-hua,ZHANG Yun,LI Jian-jian,XU Xiao-yun.Effects of salt stress on seed germination and seedling growth of pepper[J].Journal of Gansu Agricultural University,2006,41(1):34-38. |
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| Authors: | NIU Cai-xia YU Ji-hua ZHANG Yun LI Jian-jian XU Xiao-yun |
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| Institution: | College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China |
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| Abstract: | Effects of NaNO_(3),Na_(2)SO_(4)and NaCl on seed germination and seedling growth of pepper were studied.The results showed:while the concentration of salinity was higher than 100 mmol/L,with its increasing,the germination rate,root length,germination index,activity index of the seed were significantly reduced,and the plant height and leaf area of the seedlings were restricted.The order of stress degree was NaCl_()>NaNO_(3)>NaSO_(4).Furthermore,soluble carbohydrate,malondialdehyde(MDA) content and cell membrane permeability in leaves of pepper were raised. |
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| Keywords: | pepper salt stress seed germination seedling growth |
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