三七[Panax notoginseng(Burk) F.H.Chen,1945]是我国的名贵药材之一,与三七有关的各种病害的研究报道较多,但根结线虫危害三七,引起三七根结线虫病尚未见报道。

A total of twenty-five genotypes of citrus, including 1 4 somatic hybrids were used to evaluate their resistance to foot rot of citrus hy inoculationg leaves and branches with P. parasistica The re-sults showed that Trifoliate orange +Sweet orange, Trifoliate orange+Sour orange are high resistant (HR), Sour orange + Lime, Trifoliate orange + Cleopatra mandarin, Severinia + Hamlin sweet or-ange, Sour orange+ Microcitrus are resistant (R), Cleopatra mandarin+Sour orange is middle resis-tant (MR), Citrumelo+Cleopatra mandarin. Key lime +Valencia sweet orange, Jing sweet orange + Tangerine are middle susceptible (MS), Rough lemon +Hamin sweet orange, Bonaza navel orange + Tangerine are susceptible (S), chang papeda + Valencia sweet orange, Meiwa kumquat + Valencia sweet orange are high susceptible (HS). A standard of resistance degree was established.