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首页> 外文期刊>International Journal of Biosciences >Identification of tomato (Lycopersicon esculentum L.) genotypes for salt tolerance during emergence
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Identification of tomato (Lycopersicon esculentum L.) genotypes for salt tolerance during emergence

机译：鉴定番茄（Lycopersicon esculentum L.）基因型在出苗期间的耐盐性

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Salinity in soil or water is one of the major stresses that affect crop production around the world. In Bangladesh the coastal areas are increasing day by day due to climate change. Therefore it is very important to investigate the mechanisms of salt tolerance. That is why, this study was undertaken to investigate the effect of salinity on tomato (Lycopersicon esculentum Mill.) by using ten genetically diverged tomato genotypes during seed germination and seedling growth stage. The study was carried out in Completely Randomized Design (CRD) with three replications under invitro condition. In the study, emergence percentage, radicle length, plumule length, Proline content, K+/Na+ of the seedling were assayed on five levels salinity; control (0), 4,8,12 and 16 dS m-1. The growth and subsequent development of tomato seedling negatively affected with the rising of salinity. Emergence percentage, radicle length, plumule length were decreased from control when salt concentration increased. Na+ content increased but K+ content decreased with the increment of salinity. The mean values of Na+/K+ ratio, varied from 4.2367 in control treatment to 0.00 at higher salinity level. Proline content was also increased with the increment of salinity which ranges from 9.55 to 41.5373 mg prol/2ml/sample at control to 16 dSm-1.The overall results of the experiment exhibited that among the genotypes BARI Tomato 2, Mintoo and Unnoyon were comparatively more tolerant to higher salinity on the basis of studied parameters.
机译：土壤或水中的盐分是影响全球农作物产量的主要压力之一。在孟加拉国，由于气候变化，沿海地区日益增多。因此，研究耐盐性机制非常重要。因此，本研究旨在通过在种子发芽和幼苗生长阶段使用十种基因不同的番茄基因型来研究盐度对番茄的影响（番茄番茄）。该研究以完全随机设计（CRD）进行，并在体外条件下进行了3次重复。本研究从5个盐度水平分析了幼苗的出苗率，胚根长度，胚芽长度，脯氨酸含量，K + / Na +。控制（0），4、8、12和16 dS m-1。番茄幼苗的生长和随后的发育随着盐度的增加而受到负面影响。当盐浓度增加时，出苗率，胚根长度，胚芽长度比对照降低。随着盐度的增加，Na +含量增加，而K +含量减少。 Na + / K +比的平均值从对照处理中的4.2367变化到较高盐度下的0.00。脯氨酸含量也随着盐度的增加而增加，盐度从对照到16 dSm-1的盐度从9.55到41.5373 mg prol / 2ml /样品。实验的总体结果显示，在BARI Tomato 2基因型中，Mentoo和Unnoyon相对比较根据研究的参数，对更高盐度的耐受性更高。

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