草地学报

草地学报 ›› 1997, Vol. 5 ›› Issue (4): 244-250.DOI: 10.11733/j.issn.1007-0435.1997.04.004

• 研究论文 • 上一篇    下一篇

紫花苜蓿耐盐新品系选择效果的研究

杨青川1, 苏加楷1, 耿华珠1, 孙彦2, 郝吉国2, 李义显2, 高云生2   

  1. 1. 中国农业科学院畜牧研究所, 北京, 100094;
    2. 北京农学院, 北京, 102206
  • 出版日期:1997-11-15 发布日期:1997-11-15

Study on Effects of Selection of a Salt Tolerant Alfalfa Strain at Different Salt Stress

Yeq Qingchuan1, Su Jakai1, Geng Huazhu1, Sun Yan2, Gao Yunsheng2   

  1. 1. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100094;
    2. Beijing Agricultural College, Beijing 102206
  • Online:1997-11-15 Published:1997-11-15

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摘要： 紫花苜蓿耐盐新品系(下称耐盐苜蓿)是以保定、南皮、RS和秘鲁苜蓿为亲本材料,于1988-1994年在河北省中捷农场和山东省德州市苗圃(土壤含盐量0.3-0.5%),通过四代混合选择而成。1995-1997年通过盆栽耐盐鉴定、品种比较试验和生产试验,对新品系耐盐性进行系统研究。结果表明,在0.3%和0.4%NaCl胁迫下,盆栽耐盐苜蓿的干重比保定苜蓿(对照)分别提高13.0%和11.3%。在山东德州(土壤含盐量为0.25-0.45%),产草量比对照提高11.1-13.4%。在山东无棣县(土壤含盐量为0.48%),产草量比保定苜蓿(对照)提高1.82-2.0%,比秘鲁苜蓿提高18.3-33.6%,比陇东苜蓿提高对.5-80.3%。在甘肃兰州,(土壤含盐量为0.206-0.743%),耐盐苜蓿比陇中苜蓿增产9.0-18.0%。试验结果表明,耐盐苜蓿新品系的选育效果良好。

关键词: 紫花苜蓿, 耐盐新品系, 耐盐性

Abstract: A new salt tolerant alfalfa strain was developed by intercrossing genotypes following 4 cy-cles of selection in saline field with 0.3~0.5% salt content during 1988~1994.Selection nurserieswere at ZhongJian friendly farm in Hebei province and at a farm of suburb of Dezhou city in Shang Dongprovince.The selechon effect of new salt tolerant strain was studied through pot test, strain comparativetest, production performance test during 1995~1997.Results showed:Dry weight of new salt tolerantstrain increased by 13.0% and 11.3% over that of Bao Ding affalfa in 0.3% and 0.4% NaCl stress re-spectively.Its dry weight increased by 11.1~l3.4%, plant heigh increased by 5.7~8.7%.overthat of Bao Ding in the strain comparative test in saline field in the suburb of Dezhou city.Its dry weightincreased by 18.2~29.0%, 18.3~33.6%, 37.5~80.3% over that of Bao Ding, BiLou, Long Dongalfalfas respectively in production performance test in saline field of Wu Di county of Shadong Province.Its dry weight increased by 9.0~18.0% over that of Long Zhong alfalfa in Lan Zhon test field.

Key words: Alfalfa, New strain, Salt tolerance