| 硝酸钙胁迫下番茄耐盐砧木品种的筛选 |
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| 引用本文：贾慧慧，王素娜，古东月，赵振芳，裴 云，苏立芳，刘伟康，袁 丁，王丽萍.硝酸钙胁迫下番茄耐盐砧木品种的筛选[J].西北农业学报,2019,28(8):1302~1308 |
| DOI:10.7606/j.issn.1004-1389.2019.08.012 |
| 摘要点击次数: 722 |
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| 基金项目:2018年河北省研究生创新资助项目（CXZZSS2018078）；蔬菜集约化嫁接育苗研究与示范（1522101053-6）；邯郸市设施蔬菜工程技术研究中心（1564601116）；河北省现代农业产业技术体系蔬菜创新团队（HBCT2018030211）；河北省自然科学基金（C2018402145）；河北工程大学博士专项基金（17129033071）。 |
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| 中文摘要:采用营养液栽培，以番茄嫁接用砧木5个品种为材料，研究不同浓度Ca(NO3)2胁迫处理对不同砧木品种幼苗生长及生理特性的影响。结果表明，在不同Ca(NO3)2处理浓度下，表现为低促高抑的作用效果。当Ca(NO3)2浓度 ≤ 40 mmol·L-1时，显著提高番茄砧木幼苗的株高、茎粗及生物量；当浓度>40 mmol·L-1时，番茄砧木幼苗的株高、茎粗和生物量均显著下降，叶片的相对电导率和丙二醛（MDA）质量摩尔浓度明显提高。不同品种砧木的耐盐性存在明显差异，耐盐性依次为‘阿拉姆’>‘果砧1号’ > ‘澳砧1号’ >‘久留大佐’>‘野大哥1号’。 |
| 中文关键词:番茄砧木 盐胁迫 筛选 耐盐性 |
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| Selection of Tomato Salt-tolerance Rootstock under Stress of Valcium Nitrate |
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| Abstract:In this experiment, 5 rootstocks grafted with tomato as materials,the effects of Ca(NO3)2 stress treatments at different concentrations on the growth and physiological characteristics of seedlings of different stock varieties were studied.The study showed thatthe plant height, stem diameter and biological value of tomato rootstock seedlings were stimulated when the concentration of Ca(NO3)2 was ≤ 40 mmol·L-1，however, when the concentration was higher than 40 mmol·L-1, the plant height, stem diameter and biomass of tomato rootstock seedlings of all varieties were significantly inhibited, and the relative electrical conductivity and MDA molality of leaves increased significantly. The results suggested that the salt tolerance of different rootstocks were different, and the salt tolerance of the five tomato rootstocks was ‘alam’> ‘Guozhen No.1’> ‘Aozhen No.1’> ‘Jiuliudazuo’> ‘Yedage No.1’. |
| keywords:Tomato rootstock Salt stress Screening Salt resistance |
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