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首页> 外文期刊>Journal of Agronomy and Crop Science/Zeitschrift fur acker-und pflanzenbau >Response of Wheat Varieties from Semi-arid Regions of Jordan to Salt Stress
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Response of Wheat Varieties from Semi-arid Regions of Jordan to Salt Stress

机译：小麦品种从约旦半干旱地区到盐胁迫的反应

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摘要

This study was carried out to determine the effects of salinity levels (control, 6, 12 and 18 dS m(-1)) on germination, seedling growth, some agronomic traits and proline accumulation in leaves of nine wheat varieties adapted to semi-arid areas of Jordan. The tested wheat materials included eight durum wheat varieties (Haurani 27, Acsad 65, Om Rabbeeh, Sham 1, Safra Ma'an, Katma, Al-Samra and F8) and one bread wheat variety (Diel Harthon). Final germination percentage, shoot and seminal root length, and all growth and yield parameters were significantly (P < 0.05) decreased by increasing salinity level. Proline content was significantly (P < 0.05) increased by increasing salinity. There were significant variety x salt interactions (P < 0.05) on final germination percentage, seminal root length, grain yield and yield-related traits indicating that the varieties responded to salt differently. Sham 1 did not show any decrease in germination ability at the different salinity levels. Haurani 27, Acsad 65, Al-Samra and Diel Harthon showed a nonsignificant reduction in germination potential at low and intermediate salt levels. Safra Ma'an and Al-Samra showed the lowest reduction in seminal root length at low salt level and consequently exhibited the lowest stress susceptibility index 'S' values. Grain yield-based stress susceptibility index 'S' indicated that Haurani 27, Acsad 65, Katma, Al-Samra, F8 and Diel Jardoon were more salt tolerant than Om Rabbeeh, Sham 1 and Safra Ma'an. In conclusion, a similar salt tolerance was observed at different growth stages in Haurani 27, Acsad 65 and Al-Samra. Consequently, these three varieties could be considered as salt tolerant and accordingly they are suitable for durum wheat improvement. Furthermore, Sham 1 had the highest ability to germinate at high salinity level indicating that it has a genetic potential for salt tolerance, at least at this stage of its life cycle.
机译：进行该研究以确定盐度水平的影响（对照，6,12和18ds m（-1））对萌发，幼苗生长，九个小麦品种叶片的一些农艺性状和脯氨酸积累，适应半干旱约旦地区。测试小麦材料包括八个硬粒小麦品种（Haurani 27，Acsad 65，Om Rabbeeh，Sham 1，Safra Ma'an，Katma，Al-Samra和F8）和一个面包小麦品种（Diel Harthon）。最终萌发百分比，芽和精细的根长，以及所有生长和产量参数显着（P <0.05）通过增加盐度水平降低。通过增加盐度，脯氨酸含量显着（P <0.05）增加。在最终发芽率，精细的根长，籽粒产量和产率相关性状的含有显着的X盐相互作用（P <0.05），表明品种对盐不同的反应。 Sham 1未显示不同盐度水平的萌发能力的任何降低。 Haurani 27，Acsad 65，Al-Samra和Diel Harthon在低和中间盐水平下发芽潜力的显着降低。 Safra Ma'an和Al-Samra在低盐水平下显示出最低的晶根长度，因此表现出最低应力易感性指数的值。基于谷物产量的应力易感性指数'表示Haurani 27，ACSAD 65，Katma，Al-Samra，F8和Diel Jardoon比Om Rabbeeh，Sham 1和Safra Ma'an更耐盐。总之，在Haurani 27，Acsad 65和Al-Samra的不同生长阶段观察到类似的耐盐性。因此，这三种品种可以被认为是耐盐性，因此它们适用于硬质小麦改善。此外，Sham 1在高盐度水平下发芽的能力最高，表明它具有耐盐性的遗传潜力，至少在其生命周期的这种阶段。

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