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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Effects of NaCl on the germination, seedling growth and water uptake of triticale.
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Effects of NaCl on the germination, seedling growth and water uptake of triticale.

机译：NaCl对小黑麦发芽，幼苗生长和水分吸收的影响。

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摘要

Salt tolerance was evaluated in 3 newly registered triticale cultivars (Karma-2000, Presto, and Tatlcak-97). Germination percentage, seedling fresh and dry weights, and water uptake by the seeds of the 3 triticale cultivars were determined under various levels of salt (NaCl) stress, with electrical conductivities of 2.4, 4.2, 5.9, 7.7, 10.6 and 13.2 dS m-1. Roots and shoots were analysed for the uptake of Na+ and K+, whereas seeds were analysed for the uptake of Na+, K+ and Cl-. Increased NaCl level had significant effects on the mean germination time, but had no significant effect on the final germination percentage. Water uptake did not significantly vary with the salinity level. Salinity increased the accumulation of Na+, and reduced the K+ content of roots and shoots. The Na+ and Cl- contents of germinating seeds gradually increased, while the K+ content of germinating seeds diminished. Karma-2000 appeared to be more tolerant of salt stress than the other cultivars. It was concluded that the delay in germination was mainly due to greater Na+ accumulation in seeds rather than to osmotic stress in the triticale cultivars, and that NaCl had adverse effects on triticale seedling characters..
机译：在3个新注册的黑小麦品种（Karma-2000，Presto和Tatlcak-97）中评估了耐盐性。在不同水平的盐（NaCl）胁迫下，测定电导率分别为2.4、4.2、5.9、7.7、10.6和13.2 dS m-的3个小黑麦品种的发芽率，幼苗鲜重和干重以及种子的吸水率。 1。分析根和芽对Na +和K +的吸收，而分析种子对Na +，K +和Cl-的吸收。 NaCl水平升高对平均发芽时间有显着影响，但对最终发芽率却没有显着影响。吸水率没有随盐度水平显着变化。盐分增加了Na +的积累，并降低了根和芽的K +含量。发芽种子的Na +和Cl-含量逐渐增加，而发芽种子的K +含量减少。 Karma-2000似乎比其他品种更耐盐胁迫。结论是，发芽延迟主要是由于种子中更多的Na +积累，而不是由于黑小麦品种的渗透胁迫，并且氯化钠对黑小麦的幼苗性状有不利影响。

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