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首页> 外文期刊>Biosciences Biotechnology Research Asia >Effect of osmotic stress induced by Polyethylene Glycol (PEG) on seed germination of some Saudi wheat cultivars.
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Effect of osmotic stress induced by Polyethylene Glycol (PEG) on seed germination of some Saudi wheat cultivars.

机译：聚乙二醇（PEG）引起的渗透胁迫对一些沙特小麦品种种子萌发的影响。

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摘要

Water stress can greatly reduce crop plants growth in all stages including seed germination, especially in arid and semi-arid regions such as Saudi Arabia which is the driest country in the world. In order to study the effect of water stress on seed germination of different Saudi Arabian wheat cultivars, an experiment was set up to evaluate the effect of a range of water stress treatments (0, -3, -5, -7.5 and -10 bar) on seed germination of four Saudi wheat cultivars (Soundi 1, Soundi 2, Hab Ahmar and Lughaimi). The different water stress treatments were generated using Polyethylene Glycol (PEG). The results showed that the responses of the cultivars to the different treatments were significantly different which indicates that some cultivars were more tolerant of water stress than others. We can conclude that cv. Hab Ahmar was more tolerant under extreme (-10 bar) water stress, whereas cvs. Soundi 2 and Lughaimi were less tolerant. The cultivar Soundi 1 was the most tolerant under -7.5 bar treatment. Recommendations of which wheat cultivar should be used in Saudi Arabian dry conditions will be discussed.
机译：水分胁迫可以极大地降低包括种子发芽在内的所有阶段的农作物生长，特别是在干旱和半干旱地区，例如世界上最干旱的国家沙特阿拉伯。为了研究水分胁迫对不同沙特阿拉伯小麦品种种子萌发的影响，建立了一个实验以评估一系列水分胁迫处理（0，-3，-5，-7.5和-10 bar）的影响）在四个沙特小麦品种（Soundi 1，Soundi 2，Hab Ahmar和Lughaimi）的种子发芽上。使用聚乙二醇（PEG）产生了不同的水分胁迫处理。结果表明，不同品种对不同处理方式的响应差异显着，说明某些品种对水分胁迫的耐受性强于其他品种。我们可以得出结论。 Hab Ahmar在极端（-10 bar）的水分胁迫下具有更强的耐受力，而cvs。 Soundi 2和Lughaimi的容忍度较低。在-7.5 bar处理下，Soundi 1品种的耐受性最高。将讨论在沙特阿拉伯干旱条件下应使用哪种小麦品种的建议。

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