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中国农学通报 ›› 2023, Vol. 39 ›› Issue (12): 21-27.doi: 10.11924/j.issn.1000-6850.casb2022-0564

• 农学·农业基础科学 • 上一篇    下一篇

甘薯组培苗耐盐性鉴定

郭慧慧(), 林丛发, 蒋元斌, 徐绍翔, 林泽宇, 潘祥华()   

  1. 宁德市农业科学研究所,福建宁德 355017
  • 收稿日期:2022-07-07 修回日期:2022-10-27 出版日期:2023-04-25 发布日期:2023-04-21
  • 通讯作者: 潘祥华,男,1966年出生,福建宁德福安人,研究员,本科,学士,从事作物遗传育种研究。通信地址:355017 福建省宁德市福安市坂中乡满春街45号(农科所),Tel:0593-6373006,E-mail:pxh6681@126.com
  • 作者简介:

    郭慧慧,女,1989年出生,福建宁德福安人,助理研究员,研究生,硕士,主要从事植物组织培养研究。通信地址:355017 福建省宁德市福安市坂中乡满春街45号(农科所),Tel:0593-6373006,E-mail:

  • 基金资助:
    福建省科技计划项目“优质抗病食用型甘薯新品种选育”(2020N0077)

Identification of Salt Tolerance for Sweet Potato Tissue Culture Seedlings

GUO Huihui(), LIN Congfa, JIANG Yuanbin, XU Shaoxiang, LIN Zeyu, PAN Xianghua()   

  1. Institute of Agricultural Sciences of Ningde City, Ningde, Fujian 355017
  • Received:2022-07-07 Revised:2022-10-27 Online:2023-04-25 Published:2023-04-21

摘要:

通过评价甘薯组培苗耐盐性,筛选耐盐甘薯种质。以7份甘薯材料为试材,将其茎段接种于含0、2、4、6、8、10 g/L氯化钠的MS培养基中培养,30 d后测定蔓长、发芽率、生根率、根数及盐害指数,并运用SPSS聚类分析及隶属函数对甘薯材料耐盐性进行综合评价。‘福宁紫4号’和‘福宁紫5号’为敏感型材料,在含2 g/L氯化钠的MS培养基中根的生长完全被抑制,蔓的生长被抑制了90%;‘福宁紫3号’、‘福宁紫6号’、‘福宁薯12号’、‘福宁薯20号’及‘福宁薯23号’在适宜盐浓度范围内具有一定抗盐害能力。综合各项指标,7个甘薯品种耐盐性强弱依次为‘福宁薯12号’>‘福宁紫3号’>‘福宁紫6号’>‘福宁薯20号’>‘福宁薯23号’>‘福宁紫4号’>‘福宁紫5号’。

关键词: 甘薯, 组培苗, 耐盐性鉴定, 表型响应, 隶属函数分析

Abstract:

Salt-tolerant germplasm of sweet potato is screened by evaluating the salt tolerance of sweet potato tissue culture seedlings. In this study, seven sweet potato varieties were used as test materials, and the stem segments of the test materials were inoculated into Murashige and Skoog (MS) media containing 0, 2, 4, 6, 8 and 10 g/L NaCl, followed by the measurement of vine length, germination rate, rooting rate, root number and salt damage index after 30 days. The comprehensive evaluation of salt tolerance for sweet potato materials was carried out by using Statistic Package for Social Science (SPSS) cluster analysis and membership function. The results showed that ‘Funingzi No.4’ and ‘Funingzi No.5’ were sensitive materials. The root growth was completely inhibited and vine growth was inhibited by 90% in MS medium containing 2 g/L NaCl. ‘Funingzi No.3’, ‘Funingzi No.6’, ‘Funingshu No.12’, ‘Funingshu No. 20’ and ‘Funingshu No.23’ showed certain resistance to salt damage in the appropriate concentration range of salinity. All the indicators indicated that, the seven sweet potato varieties were ordered in terms of salt tolerance strength as follows: ‘Funingshu No.12’ > ‘Funingzi No.3’ > ‘Funingzi No.6’ > ‘Funingshu No. 20’ > ‘Funingshu No. 23’ > ‘Funingzi No.4’ > ‘Funingzi No.5’.

Key words: sweet potato, tissue culture seedlings, identification of salt tolerance, phenotypic response, membership function analysis