新疆农业科学 ›› 2022, Vol. 59 ›› Issue (8): 1855-1863.DOI: 10.6048/j.issn.1001-4330.2022.08.005

• 作物遗传育种·分子遗传学·耕作栽培·生理生化 • 上一篇    下一篇

复合盐胁迫对7个玉米品种萌发的影响

祁通1(), 黄建1, 徐菲1, 韩登旭2   

  1. 1.新疆农业科学院土壤肥料与农业节水研究所/农业农村部盐碱土改良与利用(干旱半干旱区盐碱地)重点实验室,乌鲁木齐 830091
    2.新疆农业科学院粮食作物研究所,乌鲁木齐 830091
  • 收稿日期:2021-10-16 出版日期:2022-08-20 发布日期:2022-10-01
  • 通信作者: 祁通
  • 作者简介:祁通(1982-),甘肃武威人,副研究员,研究方向为盐碱土改良与利用,(E-mail) tong1982nn@163.com
  • 基金资助:
    自治区公益性科研院所基本科研业务经费(ky2021121);自治区重大专项课题(2016A03008-1)

Effects of Compound Salt Stress on Germination of 7 Maize Varieties

QI Tong1(), HUANG Jian1, XU Fei1, HAN Dengxu2   

  1. 1. Key Laboratory of Saline-alkali Soil Improvement and Utilization(Saline-Alkali Land in Arid and Semi-Arid Regions), Ministry of Agriculture and Rural Affairs, P. R. China/Research Institute of Soil, Fertilizer and Agricultural Water Conservation, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,China
    2. Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
  • Received:2021-10-16 Online:2022-08-20 Published:2022-10-01
  • Correspondence author: QI Tong
  • Supported by:
    Basic Research Funds for Public Welfare Research Institutes of The Autonomous Region(ky2021121);Major Special Projects of the Autonomous Region(2016A03008-1)

摘要:

【目的】筛选出适合新疆盐渍化土壤种植的耐盐玉米品种。【方法】利用田间自然盐渍土配置盐溶液,对7份玉米材料进行萌发期耐盐试验,测定发芽势、发芽率、胚根胚芽长、胚根胚芽鲜重等指标种子萌发期耐盐性。【结果】在盐胁迫下,7个玉米品种的发芽率、发芽势、发根数、胚芽和胚根的长及重量等指标随盐分浓度的增加逐渐下降,在不同品种之间下降幅度有较大差异,其中新玉102号和新玉110号品种的相关指标在同等盐分浓度下各项指标与对照相比下降幅度较少,对盐分的耐受能力较强,而KWS3376和KWS2564品种的指标与对照比降幅较大,对盐分较为敏感,表现为不耐盐。【结论】筛选出较耐盐的玉米品种是新玉102号和新玉110号品种,在此条件下含量超过0.9%时,玉米的发芽势、发芽率、胚芽和胚根长度及重量等指标都有明显的降低,影响玉米萌发。

关键词: 盐渍化; 玉米; 萌发; 盐胁迫

Abstract:

【Objective】 To screen out salt-tolerant maize varieties suitable for planting in salinized soil in Xinjiang. 【Methods】 Seven maize materials were prepared with salt solution in natural saline soil in the field. The germination potential, germination rate, length of radicle and germ, fresh weight of radicle and germ could bewere used to reflect the salt tolerance of seeds at germination stage from multiple angles. 【Results】 The results showed that under salt stress, the germination rate, germination potential, number of r oots, length and weight of embryo and radicle of all maize varieties decreased gradually with the increase of salt concentration, and there were great differences among different varieties. Among them, the related indexes of New Xinyu 102 and Xinyu 110 decreased less than that of the control under the same salt concentration, showing a strong tolerance to salt, while the indexes of KWS3376 and KWS2564 decreased more than that of the control, showing a sensitivitysensitivity to salt, showing and a salt intolerance. 【Conclusion】 Xinyu 102 and Xinyu 110 were selected as maize varieties with high salt tolerance. Under these conditions, the germination potential, germination rate, length and weight of germ and radicle of maize decreased significantly when the content was over 0.9%, which seriously affected the germination of maize.

Key words: salinization; corn; germination; salt stress

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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