韓國春蘭의 受精 및 原胚形成에 關한 硏究

Studies on the Fertilization and Pro-embryo Formation of Cymbidium virescens in Korea

Present experiment was performed in order to make clear the phenoinenon of fertilization and pro-embryo formation in Cymbidium virescens in Korea, and the results of 조ich were summarized as follows. 1. Primordia of ovule differentiates from parietal placenta when it is about 15 days after pollination. Archesporial cell differentiates about 30 days and complete embryo sac is formed about 60 days. 2. Pollen tubes penetrate into the stigma when it is about 15 days after pollination and they reach embryo sacs about 60 days. 3. Fertilization takes place about 75 days after pollination. Fertilized egg cells divide in two and form pro-embryo 조en about 90days. Seeds are formed about 130 days.