江汉大学学报(自然科学版) ›› 2022, Vol. 50 ›› Issue (6): 22-29.doi: 10.16389/j.cnki.cn42-1737/n.2022.06.003

• 豆类植物研究 • 上一篇    下一篇

3 个豌豆变种种子萌发及幼苗生长生理对干旱胁迫的响应

雷斌1,2,张凤银*1   

  1. 1. 江汉大学 生命科学学院,湖北 武汉 430056;2. 东北农业大学,黑龙江 哈尔滨 150006
  • 发布日期:2022-12-19
  • 通讯作者: 张凤银
  • 作者简介:雷斌(1997— ),男,硕士生,研究方向:蔬菜栽培生理。

Responses of Seed Germination and Seeding Growth Physiology of 3 Pea Variants to Drought Stress

LEI Bin1,2,ZHANG Fengyin*1   

  1. 1. School of Life Sciences,Jianghan University,Wuhan 430056,Hubei,China;2. Northeast Agricultural University,Harbin 150006,Heilongjiang,China
  • Published:2022-12-19
  • Contact: ZHANG Fengyin

摘要: 以 3 个豌豆变种(菜用豌豆、软荚豌豆和粮用豌豆)为材料,在种子萌发期间,以 15% 的聚乙二醇(PEG-6000)溶液作为渗透介质模拟干旱胁迫,观测了其生理响应,并进行了耐旱性能的综合评价。结果表明:15% 的聚乙二醇溶液抑制 3 个豌豆变种幼苗芽的生长,诱导丙二醛含量和脯氨酸含量上升;但是,提高了软荚豌豆的发芽势、发芽率、发芽指数和活力指数,促进其主根和侧根的生长;15% 聚乙二醇溶液对粮用豌豆和菜用豌豆的发芽势和发芽率影响不明显,不同程度降低其发芽指数和活力指数,抑制主根和侧根的生长。3 个不同豌豆变种种子萌发期耐旱性从强到弱依次为软荚豌豆、菜用豌豆、粮用豌豆。

关键词: 豌豆, 变种, 耐旱性, 隶属函数法, 综合评价

Abstract: During the germination of 3 pea variants(Pisum sativum L. var. hortense Poir. ,Pisum sativum L. var. macrocarpon Ser., and Pisum sativum L. var. arvense Poir.),the 15% PEG-6000 solution was used as the osmotic medium to simulate drought stress in order to investigate their physiological responses and comprehensively evaluate their drought tolerance. The results indicated that the 15% polyethylene glycol(PEG-6000) solution inhibited the growth of buds and increased the content of malondialdehyde and proline in the seedlings of three pea varieties,while improving the germination potential,germination rate,germination index,and vigor index of Pisum sativum L. var. macrocarpon Ser.,and promoted its growth of main roots and lateral roots. However, the 15% PEG-6000 solution had no significant effects on the germination potential and germination rate of Pisum sativum L. var. hortense Poir. and Pisum sativum L. var. arvense Poir.,reduced their germination and vitality index to some degrees,and inhibited the growth of their primary and lateral roots. The drought tolerance of 3 pea variants from strength to weakness was Pisum sativum L. var. macrocarpon Ser.,Pisum sativum L. var. hortense Poir.,Pisum sativum L. var. arvense Poir.,respectively.

Key words: pea, variants, drought-resistance, membership function, comprehensive evaluation

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