Rhizosphere properties would greatly depend on plants species/genotypes which might be used as criteria for screening of plants in terms of the effects on soil quality. This study was conducted to determine the effects of 41 barley genotypes from three groups of Hordeum vulgare, spontaneum and wild genotypes on the rhizosphere structural stability and quality indicators. The genotypes were planted in a research field for 8 months. Soil quality indicators including water and ethanol sorptivities (S_W and S_E), water repellency (R), soil oganic carbon (SOC), hot-water soluble carbohydrates (HWSC), and water-dispersible clay (WDC) were determined in the rhizosphere and bulk soils. All of the indicators changed in the rhizosphere in comparison with the bulk soil, and different genotypes showed diverse effects on these indicators. The R and SOC of the rhizosphere varied among the genotypes, and they were greater in the rhizosphere compared to bulk soil. However, there was no significant difference between the three groups in terms of water repellency. The WDC in the rhizosphere was significantly lower and its value was in the order: vulgare < spontaneum < wild. The rhizosphere of wild and spontaneum genotypes had lower S_W and higher R (i.e., was more hydrophobic) than that of vulgare genotypes. Principal component analysis showed that wild and spontaneum groups mainly affected the soil water repellency; however, the effects of these genotypes on rhizosphere structural stability were variable. Vulgare group primarily increased the SOC and HWSC, and therefore resulted in better rhizosphere stability.

根际特性在很大程度上取决于植物物种/基因型，这些植物物种/基因型可用作筛选植物对土壤质量的影响的标准。本研究旨在确定来自大麦、自发和野生基因型三组的 41 个大麦基因型对根际结构稳定性和质量指标的影响。这些基因型在一个研究田里种植了 8 个月。土壤质量指标包括水和乙醇sorptivities（小号_{w ^}和小号_ë），拒水性（ř)、土壤有机碳 (SOC)、热水可溶性碳水化合物 (HWSC) 和水分散性粘土 (WDC) 在根际和大块土壤中测定。与大块土壤相比，根际的所有指标都发生了变化，不同基因型对这些指标的影响不同。根际的R和 SOC 因基因型而异，与大块土壤相比，它们在根际更大。然而，在防水性方面，三组之间没有显着差异。根际WDC显着降低，其值顺序为：vulgare  <  spontaneum  <  wild。野生和自发的根际基因型降低小号_W¯¯和更高- [R （即，更疏水性的）比的大麦基因型。主成分分析表明，野生组和自发组主要影响土壤拒水性；然而，这些基因型对根际结构稳定性的影响是可变的。Vulgare组主要增加 SOC 和 HWSC，因此导致更好的根际稳定性。