To identify the resistance level of Malus sieversii(Ledeb.)M.Roem.to fire blight and screen resistant materials.The results collected 137 Malus sieversii(Ledeb.)M.Roem.materials from 4 natural populations such as Huocheng county,Gongliu county,Xinyuan county and Tacheng county of Xinjiang,the branches and leaves were inoculated with Erwinia amylovora by acupuncture method.The results showed most of Malus sieversii(Ledeb.)M.Roem.germplasm manifestated medium sensitivity,and selected 6 resistant materials and 15 medium resistant materials.The resistance varied significantly among Malus sieversii(Ledeb.)M.Roem.materials natural populations,Gongliu population was slightly better than Xinyuan population,Huocheng population,and Tacheng population.This study evaluated the resistance difference of Malus sieversii(Ledeb.)M.Roem.germplasm to the Erwinia amylovora of fire blight among different natural population,investigated the resistant Malus sieversii(Ledeb.)M.Roem.germplasm resource,and could afford the breeding resource of apple in resistance inheritance.
维普
万方数据