湖北农业科学 ›› 2019, Vol. 58 ›› Issue (16): 15-19.doi: 10.14088/j.cnki.issn0439-8114.2019.16.004

• 育种·栽培 • 上一篇    下一篇

西藏地区白菜型黄子油菜种子耐盐性初探

杨广环a, 南吉斌b, 袁燕a, 郭素平a, 旦巴a   

  1. 西藏农牧学院,a.植物科学学院; b.资源与环境学院,西藏 林芝 860000
  • 收稿日期:2019-05-14 出版日期:2019-08-25 发布日期:2019-11-12
  • 通讯作者: 旦巴(1971-),男(藏族),西藏仁布人,副教授,硕士生导师,主要从事油菜遗传研究,(电子信箱)dbtebit@163.com。
  • 作者简介:杨广环(1995-),女,甘肃武威人,在读硕士研究生,研究方向为高原油菜遗传学,(电话)18143854583(电子信箱)2449276275@qq.com
  • 基金资助:
    西藏白菜型黄子油菜在林芝地区的适应性及高产栽培技术研究

Preliminary study on salt tolerance of Brassica napus L. seeds in Tibet area

YANG Guang-huana, NAN Ji-binb, YUAN Yana, GUO Su-pinga, DAN Baa   

  1. a.Plant Sciences College; b.College of Resources and Environment,Tibet Agricultural and Animal Husbandry University,Nyingchi 860000,Tibet,China
  • Received:2019-05-14 Online:2019-08-25 Published:2019-11-12

摘要: 以不同来源的西藏地方油菜(Brassica napus L.)为材料,分别采用NaCl浓度为0、60、120、180、240 mmol/L的溶液对13个参试的白菜型油菜种子进行处理,并进行发芽试验。通过测定种子发芽率、发芽势、发芽指数等发芽指标及胚根长、胚轴长和总鲜重等幼苗生长特性,比较盐胁迫对白菜型油菜种子发芽和幼苗生长的影响。结果显示,种子发芽指标和幼苗生长指标随着盐浓度的升高呈降低趋势,不同胁迫间有明显差异;雍布拉康和桑耶镇聂果村种源耐盐性弱,多那村、扎布村和雪巴村3个参试白菜型油菜耐盐性较强;其中11个参试白菜型油菜发芽特性可分为4个类群,山南市多那村和日喀则市吉定村白菜型油菜分为一类,该类在中低盐胁迫条件下,发芽率高,出苗快,耐盐性最好。13个参试材料中,山南地区多那村、扎布村、雪巴村和日喀则吉定村的4种白菜型油菜耐盐性强。

关键词: 白菜型油菜(Brassica napus L.), 发芽特性, 耐盐性, 西藏

Abstract: Using rape(Brassica napus L.) from different sources in Tibet as materials,with different NaCl concentrations of 0, 60, 120, 180, 240 mmol/L were used to treat 13 rape seeds, and the germination test was carried out. The effects of salt stress on seed germination and seedling growth of rape were compared by measuring seed germination rate, germination potential, germination index and other germination indexes, as well as seedling growth characteristics such as radicle length, hypocotyl length and total fresh weight. The results showed that the seed germination index and seedling growth index decreased with the increase of salt concentration, and there were significantly differences between different stresses. The source salt tolerance of Nieguo village and Yongbulakang was weak, three test material of rapeseeds in Duona village, Zhabu village and Xueba village have strong salt tolerance. Among them, the germination characteristics of 11 tested rapeseed can be divided into four groups, of which Shannan city Duona village and Rikaze city Jiding village were of the same type, under the condition of low and medium salt stress, the germination rate was high, the seedling emergence was fast, and the salt tolerance was the best. Among the 13 materials, four kinds of rapeseed in Duona village, Zhabu village, Xueba village in Shannan city and Rikaze city Jiding village have strong salt tolerance.

Key words: Brassica napus L., germination characteristics, salt tolerance, Tibet

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