Abstract:In order to achieve sustainable control of wheat stripe rust in southern region of Gansu Province, technical system related to control of wheat stripe rust has been established based on genetic diversity, which comprises enriching resistance genes of commercial cultivars, enforcing distribution in the pathogen over-summer and over-winter regions, and utilizing multi-resistance of durable resistance, slow-rusting and high-temperature adult resistance (HTAP), etc. A series of improved cultivars and disease-resistant types have been bred by using the effective genes Yr10, Yr12, Yr13, Yr16, Yr26, YrC591, etc., as well as the durable resistant cultivars such as Flinor and the other resistant materials such as Zhong 4, which of ten have been improved evidently in yield since 2004 with the yield increase of 7.3%-28.9% in contrast to CK in regional test. These put the control technical system of genetic diversity into a new phase.