湖北农业科学 ›› 2023, Vol. 62 ›› Issue (1): 122-127.doi: 10.14088/j.cnki.issn0439-8114.2023.01.021

• 园艺·特产 • 上一篇    下一篇

重金属胁迫对向日葵种子萌发特征影响评价及花海品种筛选

于华丽a, 温四民b, 张桂玲a, 董传洁a, 程乾a   

  1. 临沂大学,a.农林科学学院; b.临沂大学实验管理中心,山东 临沂 276005
  • 收稿日期:2021-12-03 出版日期:2023-01-25 发布日期:2023-03-07
  • 通讯作者: 温四民(1974-),男,山东临沂人,实验师,主要从事植物抗逆性研究,(电子信箱)siminwen2003@126.com
  • 作者简介:于华丽(2000-),女,山东烟台人,在读本科生,研究方向为园林植物逆境生理研究,(电话)15269583132(电子信箱)1664171420@qq.com;张桂玲(1975-),女,山东临沂人,副教授,主要从事园林植物遗传育种研究,(电子信箱)guilingzhang2003@126.com。
  • 基金资助:
    2021年临沂大学校级大学生创新创业项目(X202110452085)

Evaluation of the effects of heavy metal stress on the germination characteristics of sunflower seeds and screening of flower sea varieties

YU Hua-lia, WEN Si-minb, ZHANG Gui-linga, DONG Chuan-jiea, CHENG Qiana   

  1. a. College of Agriculture and Forestry Science; b.Experiment Management Center, Linyi University,Linyi 276005,Shandong,China
  • Received:2021-12-03 Online:2023-01-25 Published:2023-03-07

摘要: 为了研究重金属胁迫对向日葵(Helianthus annuus L.)种子萌发影响及花海品种筛选,以32种常见向日葵观花品种为试材,采用培养皿发芽试验方法,用含Pb2+、Cr6+、Cd2+、Ni2+、Cu2+和Zn2+离子的溶液模拟重金属胁迫,研究重金属胁迫对发芽率、发芽势、发芽指数和平均发芽日数的影响,用隶属函数法和聚类分析法筛选耐重金属胁迫品种。结果表明,重金属胁迫对多数向日葵品种种子萌发产生低浓度促进高浓度抑制的作用,并延长种子的平均发芽日数,不同品种间耐重金属胁迫能力差异较大,耐重金属胁迫性较强的品种为金富贵、魔术回旋、满天星、金庸碧翠、醉云长和活力,耐重金属胁迫中等的品种为黄钻、宝石红芳、红柠檬等10个品种,耐重金属胁迫较弱的品种为出水芙蓉、帕蒂小葵、金太阳等16个品种。

关键词: 向日葵(Helianthus annuus L.), 重金属胁迫, 种子萌发, 花海, 品种筛选

Abstract: To explore the effects of heavy metal stress on the germination of sunflower(Helianthus annuus L.) seeds and the screening cultivars of flower sea, 32 common sunflower cultivars were used as test materials. The effects of heavy metal stress on the germination rate, germination potential, germination index and average germination days were studied by using the method of Petri dish germination test and simulating heavy metal stress with solutions containing Pb2+, Cr6+, Cd2+, Ni2+, Cu2+ and Zn2+ ions. Genus function method and cluster analysis were used to screen heavy metal tolerant cultivars. The results showed that heavy metal stress promoted the seed germination of most sunflower varieties at low concentration, inhibited the seed germination at high concentration, and prolonged the average days of seed germination, the tolerance to heavy metal stress varied greatly among different cultivars. The varieties with good resistance to heavy metals were Jinfugui, Moshuhuixuan, Mantianxing, Jinyongbicui, Zuiyunchang and Huoli. 10 varieties were medium resistant to heavy metal stress, such as Huangzuan, Baoshihongfang and Hongningmeng. There were 16 varieties with resistance to heavy metal stress, such as Chushuifurong, Padixiaokui and Jintaiyang.

Key words: sunflower(Helianthus annuus L.), heavy metal stress, seed germination, flower sea, variety screening

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