Spermagonial State of Cronartium ribicola on Korean Pine in Korea

잣나무 털녹병균의 정자세대(精子世代)에 대(対)하여

  • La, Yong Joon (College of Agriculture, Seoul National University)
  • 나용준 (서울대학교 농과대학 수병학교실)
  • Received : 1980.12.10
  • Published : 1980.12.30

Abstract

The spermagonial state of Cronartium ribicola J. C. Fisher appeared on the discolored bark of Korean pine (Pinus koraiensis Sieb. & Zucc.) from late August through middle of October in Korea. A large number of ellipsoid or ovoid spermatia were contained in the spermagonial exudates that appeared on the bark of infected trees. In the spring (April-May) following the appearance of spermagonia, aecia broke through that part of the bark which had been occupied by spermagonia the year before.

Keywords