| Barley (Hordeum vulgare L.) is an important raw material for brewing and livestock feed, and improving barley production has a positive effect on securing the development of the brewing industry and increasing income. In 2019—2021, In this study, we determined the yield-related trait data of 62 barley germplasm resources under different irrigations conditions to analyze the correlation between barley yield-related traits and different irrigations. The results showed that under normal irrigation conditions, fertility period was positively correlated with effective tiller; plant height was positively correlated with yield and spike length; effective tiller was negatively correlated with number of grains and spike length; spike length was positively correlated with thousand kernel weight; and thousand kernel weight was positively correlated with yield. Under drought stress conditions, fertility period was positively correlated with thousand kernel weight; plant height was negatively correlated with effective tiller; effective tiller was positively correlated with thousand kernel weight; spike length was negatively correlated with the number of grains in a spike and the weight of a thousand seeds; and the number of grains in a spike was positively correlated with yield. A total of four drought-resistant barley germplasm resources, ZDM5458, GERTROV, G0401018K-1 and ZDM5430, were also screened.This study is of great significance for improving barley yield in arid areas and for high productive breeding in barley. |