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首页> 外文期刊>African Journal of Biotechnology >Changes of micronutrients, dry weight and plant development in canola (Brassica napus L.) cultivars under salt stress
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Changes of micronutrients, dry weight and plant development in canola (Brassica napus L.) cultivars under salt stress

机译：盐胁迫下双低油菜品种微量元素，干重和植株发育的变化。

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This study was carried out to determine the effects of salt stress on the growth, dry weights and micronutrient contents of canola (Brassica napus?L.) cultivars grown in greenhouse conditions. 12 canola cultivars (Marinca, Kosa, Spok, Semu DNK207 NA, Tower, Liraspa, Star, Tobin, Helios, Semu 209/81, Regent and Lirawell) were exposed to salinity treatments (150 mM NaCl and control). Shoot, leaf and root dry weights of all the cultivars at 45-day-old plants were determined.? Micronutrient contents (Fe, Mn, Cu and Zn) of the leaves, stems and roots were also analyzed. Salinity stress negatively affected the canola cultivars and the extent of effects varied depending on the salt tolerance of the cultivars. Generally, salinity reduced the plant growth and dry weights. Fe, Mn, Cu and Zn concentrations were high in the roots when compared with those in the leaves and shoots in the salt applied samples. It was observed that, micronutrient contents showed some variation in the different plant parts of the canola cultivars as a result of salt applications to the growing media. Iron (Fe), manganese (Mn) and copper (Cu) content increased in all the plant parts with salt applications except for some cultivars. On the other hand, when mean data of the cultivars were considered, it could be said that zinc (Zn) content of the leaves was not significantly affected by the salt stress.
机译：本研究旨在确定盐胁迫对温室条件下油菜（Brassica napus？L。）栽培品种的生长，干重和微量元素含量的影响。将12个油菜品种（Marinca，Kosa，Spok，Semu DNK207 NA，Tower，Liraspa，Star，Tobin，Helios，Semu 209/81，Regent和Lirawell）进行盐度处理（150 mM NaCl和对照）。测定45天龄植物的所有品种的茎，叶和根的干重。还分析了叶，茎和根的微量元素含量（铁，锰，铜和锌）。盐分胁迫对低芥酸菜子品种有负面影响，其影响程度取决于品种的耐盐性。通常，盐度降低了植物的生长和干重。与施盐样品中的叶和芽相比，根中的铁，锰，铜和锌的浓度较高。观察到，由于向生长培养基中施用盐，低芥酸菜子品种的不同植物部分中的微量营养素含量显示出一些变化。除某些品种外，所有植物部位的铁（Fe），锰（Mn）和铜（Cu）含量均随盐的施用而增加。另一方面，当考虑栽培品种的平均数据时，可以说盐胁迫对叶片的锌（Zn）含量没有显着影响。

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