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首页> 外文期刊>Research Journal of Seed Science >Effect of Antioxidants and Salinity Stress on Seedling Parameters of Some Wheat Cultivars
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Effect of Antioxidants and Salinity Stress on Seedling Parameters of Some Wheat Cultivars

机译：抗氧化剂和盐分胁迫对某些小麦品种苗期参数的影响

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Background and Objectives: Salinity is one of the major problems inhibiting early establishments of seedling. To check the impact of antioxidants on early seedling growth of some bread of wheat cultivars under salinity stress. Current investigation aimed to study the influence of antioxidants seed prim of some bread wheat cultivars to germinate under salinity concentrations on seedling parameters. Materials and Methods: A laboratory experiment was conducted in the Agronomy Department seed lab, Faculty of Agriculture Mansoura University, Egypt during November and December 2016. A factorial experiment assigned to Randomized Complete Block Design in four replication used. Four bread wheat cultivars i.e., Miser-1, Miser-2 and Gemmiza-12, three types of antioxidants, Salicylic acid , Ascorbic acid and Humic acid and three concentrations of antioxidants 0, 100 and 200 ppm under salinity levels of 0, 40, 80, 120 and 160 Mm. Results: The length of shoot and root, fresh and dry weight of shoot and root, seedling vigor index, total chlorophylls and germination tolerance index significantly affected by studying wheat cultivars. The tallest shoot and root as well as highest weight of fresh shoot, the highest values of seedling vigor index, the highest values of total chlorophylls and the highest values of germination tolerance index was obtained from Misr-1 cultivar. Soaking in humic acid as pretreatment significantly increased root length, fresh weight of shoot and root and seedling vigor index. Whereas, soaking in Ascorbic acid as pretreatment recorded the tallest shoot, root dry weight, total chlorophylls content and germination tolerance index. The results also designated that all these parameters were increased from increasing antioxidants concentrations until 200 ppm. Increasing salinity concentration from 40-160 mm significantly abridged the length, weight of fresh and dry shoot and root, seedling vigor index, total chlorophylls and germination tolerance index. Conclusion: In general, it could be concluded that priming bread wheat seed with Ascorbic acid or Humic acid as at concentrations of 200 ppm of Misr 1 or Gemmiza 12 cultivars enhanced seedling establishment under salinity stress (40 mM NaCl) to cultivate bread wheat under new reclaimed saline soil in Egypt.
机译：背景与目的：盐度是抑制幼苗早熟的主要问题之一。研究盐分胁迫下抗氧化剂对一些小麦品种面包早期幼苗生长的影响。目前的研究旨在研究一些面包小麦品种的抗氧化剂种子素在盐度下发芽对幼苗参数的影响。材料和方法：2016年11月至2016年12月，在埃及曼苏拉大学农学院农学系种子实验室进行了实验室实验。一项因子分解实验分配给了随机完全区组设计，共进行了四次复制。四种面包小麦品种，即Miser-1，Miser-2和Gemmiza-12，三种抗氧化剂，水杨酸，抗坏血酸和腐植酸，以及三种盐浓度的0、100和200 ppm，盐度分别为0、40， 80、120和160毫米。结果：研究小麦品种对茎和根的长度，茎和根的鲜重，干重，幼苗活力指数，总叶绿素和发芽耐受指数有显着影响。从Misr-1品种中获得了最高的枝条和根部以及最高的新鲜枝条重量，最高的幼苗活力指数，最高的总叶绿素值和最高的发芽耐受指数。腐植酸浸泡作为预处理可显着增加根长，枝条鲜重，根和幼苗活力指数。而在抗坏血酸中浸泡则记录了最高的枝条，根干重，总叶绿素含量和发芽耐受指数。结果还表明，所有这些参数均从增加的抗氧化剂浓度增加到200 ppm。盐度浓度从40-160 mm增加会显着缩短鲜干茎和根的长度，重量，幼苗活力指数，总叶绿素和发芽耐受指数。结论：总的来说，可以得出结论，以200 ppm的Misr 1或Gemmiza 12品种的抗坏血酸或腐殖酸引发面包小麦种子，可以增强盐分胁迫（40 mM NaCl）下的幼苗生长，从而在新的条件下种植面包小麦在埃及开垦了盐渍土壤。

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