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首页> 外文期刊>Journal of Biotechnology and Biodiversity >Hydroponics growth of Eucalyptus saligna Sm. on salt-stress mediated by sodium chloride
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Hydroponics growth of Eucalyptus saligna Sm. on salt-stress mediated by sodium chloride

机译：桉树Sm。的水培生长。氯化钠介导的盐胁迫

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摘要

The aim of this work was to evaluate the growth of two clones of Eucalyptus saligna on salt-stress mediated by NaCl in hydroponics. Micropropagated plants of the clones p 0 and p 1 were acclimatizated and cultivated in hydroponics at 0 and 300 mM NaCl levels. The total length, volume, number, fresh mass and dry mass of the roots, the height, fresh and dry mass of the aerial part and the fresh and dry mass of the complete plant were evaluated to the 14 days of hydroponic culture with NaCl. There were significant differences among the clones. The clone p 0 was superior to the clone p 1 in relation to volume of the roots, root number, root fresh mass and total fresh mass of the root. Regards the effect of the salinity on the plants, significant reduction was observed in the height of the aerial part, fresh mass of the aerial part and the total fresh mass. Even so, the interaction between the clones and the concentrations of NaCl was significant for the total fresh mass. In the period of 14 days of hydroponic culture on 300 mM NaCl was possible to discriminate these two clones in relation to the tolerance and susceptibility to the salt stress. The clone p 0 presented higher growth and larger tolerance to the salinity than clone p 1 . Key-words: NaCl, abiotic stress, eucalypt, salinity; stress tolerance
机译：这项工作的目的是评估在水培法中NaCl介导的盐胁迫下，两个桉树无性系的生长。使克隆p 0和p 1的微繁植物适应环境，并在水培法中以0和300 mM NaCl的水平培养。在用NaCl进行水培14天后，评估根的总长度，体积，根数，鲜重和干重，地上部分的高度，鲜重和干重以及整株植物的鲜重和干重。克隆之间存在显着差异。就根的体积，根数，根的鲜重和根的总鲜重而言，克隆p 0优于克隆p 1。关于盐分对植物的影响，观察到地上部分的高度，地上部分的新鲜质量和总新鲜质量显着降低。即便如此，克隆与NaCl浓度之间的相互作用对于总新鲜量还是很重要的。在300 mM NaCl上进行水耕培养的14天时间内，可以区分这两个克隆对盐胁迫的耐受性和敏感性。克隆p 0比克隆p 1表现出更高的生长和更大的盐度耐受性。关键词：NaCl，非生物胁迫，桉树，盐度;压力承受力

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