Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2016, Vol. 24 ›› Issue (1): 84-92.DOI: 10.11733/j.issn.1007-0435.2016.01.012

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Salt Tolerance Evaluation and Physiological Responses of Forage Rye and Triticale at Seedling Growth Stages

XIE Nan1, ZHAO Hai-ming1, LI Yuan1, You Yong-liang1, LI Wei1, LIU Gui-bo1, LIU Hong-cai2   

  1. 1. Dryland Farming Institute, Hebei Academy of Agricultural and Forestry Sciences, Key Laboratory for Crop Drought Resistance of Hebei Province, Hengshui, Hebei Province 053000, China;
    2. Baoding City Furui Garden Corporation Limited, Baoding, Hebei Province 051000, China
  • Received:2015-03-05 Revised:2015-07-06 Online:2016-02-15 Published:2016-04-26

饲用黑麦、小黑麦品种苗期耐盐性评价及盐胁迫下的生理响应

谢楠1, 赵海明1, 李源1, 游永亮1, 李伟1, 刘贵波1, 刘宏彩2   

  1. 1. 河北省农林科学院旱作农业研究所 河北省农作物抗旱研究重点实验室, 河北 衡水 053000;
    2. 保定市富瑞园林有限公司, 河北 保定 051000
  • 通讯作者: 刘贵波
  • 作者简介:谢楠(1981-),女,河北武安人,副研究员,主要从事牧草育种及配套栽培技术研究,E-mail:xnhd0070@126.com
  • 基金资助:

    现代农业产业技术体系建设专项资金(CAR-35-24);河北省科技支撑计划(14226335D);国家科技支撑计划项目(2009BADA3B01)资助

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Abstract:

Under saline alkali soil stress at seedling growth stage,the salt tolerance and physiological responses of 1 forage rye variety and 31 triticale varieties was evaluated compared with 3 wheat varieties by survival percent using standard deviation coefficient allocation weighted and salt tolerance index methods.The result showed that the plant growth was markedly inhibited under salt stress;there is obvious correlation between The salt tolerance of tested material had significant correlation with all evaluated indexes such as the survival rate,plant height,tiller number,green leaves number,aboveground and underground biomass. Therefore, the evaluation indexes could be used as the evaluation index of salt tolerance. According to the analyses of salt tolerance,the salt tolerance of ‘Jisi NO.2(JS-003)’, ‘JS-004’, ‘NTH2086’, ‘NTH2179’ and ‘NTH1048’ was stronger, whereas that of ‘Dongmu70’, ‘AM01’, ‘MX01’, ‘JS-001’, ‘JS-001-1’ and ‘JS-001-2’ was poor relatively. On this basis,the physiological responses of salt stress were discussed further. The malondialdehyde,soluble sugar,soluble protein contents and enzymatic activity of plant increased at first and then decreased with the increase of salt concentration, and different materials varied in different extent. These physiological indexes reflected the difference of salt tolerance between materials and could be used as the physiological evaluation index of salt tolerance.

Key words: Forage rye, Forage triticale, Seedling stage, Salt tolerance, Evaluation, Physiological response

摘要：

通过苗期土培法,采用盐胁迫下的存活率、标准差系数赋予权重法和耐盐指数法以3个小麦品种为对照,分别对1个饲用黑麦(Secale cereale)、31个小黑麦(Triticosecale wittmack)材料的耐盐性进行了综合评价,并对盐胁迫下的生理反应进行了初步研究。结果表明:盐胁迫明显抑制了植株的生长,各项评价指标(存活率、株高、分蘖数、绿叶数、地上生物量、地下生物量)与材料的耐盐性存在显著的相关性,可作为耐盐性的评价指标;试验筛选出‘冀饲2号(JS-003)’,‘JS-004’,‘NTH2086’,‘NTH2179’和‘NTH1048’5个饲用小黑麦材料耐盐性较强,‘冬牧70’,‘AM01’,‘MX01’,‘JS-001’,‘JS-001-1’,‘JS-001-2’6个材料耐盐性相对较差;在此基础上,进一步探讨了盐胁迫下的生理反应,丙二醛、可溶性糖、可溶性蛋白、酶活性均随着盐胁迫浓度的增加呈现先升高后降低的趋势,且不同材料间变化幅度不同。所采用的生理指标反映了材料间的耐盐性差异,可作为耐盐性评价的指标。

关键词: 饲用黑麦, 饲用小黑麦, 苗期, 耐盐性, 评价, 生理响应

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