本試驗採用之11品系對於莖枯病皆為感病性品種，尤以Mary Washing ton 及 NJ304, Nj306為最，母莖留莖數以4條以上被害較重，發病率與母莖密度成正比。
It was found all eleven test species were susceptible to Phoma asparagi Sacc., especially Mary Washingtion, NJ304, Nj306. When the number of mother stalks was up to four and more, the plants got more serious lesion.
