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首页> 外文期刊>African Journal of Biotechnology >Effects of salt stress on germination and early seedling growth of rice (Oryza sativa) cultivars in Iran
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Effects of salt stress on germination and early seedling growth of rice (Oryza sativa) cultivars in Iran

机译：盐胁迫对伊朗（Oryza Sativa）品种萌发和早期幼苗生长的影响

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An experiment was carried out in 2009, in order to investigate the effects of salt stress (S1= 0.0, S2?= 2.0, S3?= 4.0, S4= 6.0 and S5= 8.0 ds.m-2?Nacl) on germination and seedling properties of three rice cultivars (Anbar, LD and Hamar). Experiment was arranged as split-plot based on randomized complete block design in three replications, with the salinity levels in main plots and rice cultivars in subplots. The results indicate that all traits were significantly (P≤0.05) affected by salt stress, where germination, plumule and radicle length and weight were decreased with increasing in salt concentration. The extent of these reductions was related with the variations in rice cultivar under different salt stress condition. By increasing NaCl concentration, seed germination delayed and decreased in all cultivars. Regarding the relationship between speed of germination and seed vigor, salt stress decreased seed vigor of rice cultivars LD a superior cultivar under all salt stress which can be suggested for cultivation under salinity condition.
机译：在2009年进行实验，以研究盐应激的影响（S1 = 0.0，S2？= 2.0，S3？= 4.0，S4 = 6.0和S5 = 8.0ds.m-2？NaCl）和萌发和三种水稻品种幼苗特性（Anbar，LD和Hamar）。基于三种复制的随机完全块设计，实验被安排为分裂图，具有主图中的盐度水平和少量的稻米。结果表明，所有特征的显着（p≤0.05）受盐胁迫影响的影响，随着盐浓度的增加，萌发，羽压和胚根长度和重量降低。这些减少的程度与不同盐胁迫条件下水稻品种的变化有关。通过增加NaCl浓度，种子萌发延迟并在所有品种中减少。关于萌发和种子活力之间的关系，在所有盐胁迫下，盐胁迫降低了水稻品种LD的种子活力，可以在盐度下培养。

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