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Dynamic Response of Key Germination Traits to NaCl Stress in Sugar Beet Seeds

机译:甜菜种子萌发关键性状对NaCl胁迫的动态响应

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摘要

This study was aimed to investigate the effects of two different concentrations of NaCl on germination traits of seeds of four sugar beet (Beta vulgaris L.) hybrids, including a commercial variety. The seeds were sown in Petri dishes with two levels of NaCl (60 and 180 mM) and the control (0 mM NaCl). Germination and water content and electrical conductivity, as a result of solute leakage from seeds, were analyzed through linear and nonlinear equations. Results showed that the commercial variety germination seemed to be more sensitive to a moderate salt concentration (60 mM NaCl) which, conversely, was not detrimental to water uptake and germination rate in the other hybrids. Adverse effects were more evident at higher salt level (180 mM NaCl), although to a different extent, in all hybrids and for most of the parameters evaluated. This study demonstrated that salinity could induce numerous disorders in sugar beet seeds during the germination process, the seriousness of which depended on both the salt level and genotype.
机译:这项研究旨在调查两种不同浓度的NaCl对4种甜菜(Beta vulgaris L.)杂交种(包括商业品种)种子发芽特性的影响。将种子播种在陪替氏培养皿中,培养皿中含两种水平的NaCl(60和180 mM)和对比例(0 mM NaCl)。通过线性和非线性方程分析了由于种子溶质泄漏而导致的发芽,水分和电导率。结果表明,商业品种的发芽似乎对中等盐浓度(60 mM NaCl)更敏感,反之,这对其他杂种无害于水分吸收和发芽率。在较高的盐浓度(180 mM NaCl)下,不良反应在所有杂种中和大多数评估的参数中表现出不同程度,但程度不同。这项研究表明,盐度可在甜菜种子萌发过程中诱发多种疾病,其严重性取决于盐水平和基因型。

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