柑桔体细胞杂种对柑桔脚腐病的抗病性研究

 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。

ON THE RESISTANCE OF CITRUS SOMATIC HYBRIDS TO CITRUS FOOT ROT

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.