In order to investigate the response of inbred bread wheat lines to drought stress caused by polyethylene glycol during vegetative growth stages, a factorial experiment was conducted in a completely randomized design with two replications in two normal environments and drought stress on 169 inbred lines. In this experiment, in order to create drought stress, polyethylene glycol with an osmotic potential of 8 MPa was used. In this study, morphological traits of shoot and root length, shoot and root weight, shoot and root dry weight, ratios of root length to shoot length, ratios of root wet weight to shoot wet weight, plant length, ratios of root dry weight to shoot dry weight, total wet weight of root and shoot and total dry weight of root and shoot were studied and statistically analyzed. The results of observational analysis showed that drought stress had a significant effect on the tested traits. The results of cluster analysis showed that the ninth cluster genotypes in both normal and drought conditions in terms of root and shoot length traits showed a higher rate than other clusters. Finally, root and shoot length components can be used as the best traits to select drought-tolerant line.

为了研究自交面包小麦品系在营养生长阶段对聚乙二醇引起的干旱胁迫的响应，采用完全随机设计进行了因子试验，在两个正常环境中进行了两次重复，并对 169 个自交系进行了干旱胁迫。在本实验中，为了产生干旱胁迫，使用了渗透势为 8 MPa 的聚乙二醇。在这项研究中，茎和根长、茎和根重、茎和根干重、根长与茎长比、根湿重与茎湿重比、植物长度、根干重与根干重比对茎干重、根茎总湿重、根茎总干重进行研究和统计分析。观测分析结果表明，干旱胁迫对受试性状有显着影响。聚类分析结果表明，在正常和干旱条件下，第九类基因型在根茎长性状方面均表现出高于其他聚类的比率。最后，根和茎长成分可以作为选择耐旱品系的最佳性状。