목본식물에 대한 Al독성에 관한 기초자료를 얻고자, 이농도별(1.0, 2.5 및 5.0mM)수용액과 대조구로 지하수를 모래를 채운 화분에 삽목한 개나리와 플라타너스의 삽수에 1993년 4월 28일부터 6월 16일까지 주 3회씩 처리하였다. 6월 16일 삽목묘를 굴취하여 생장관련형질(신초의 생장, 엽수 및 엽록소함량)과 뿌리의 길이를 처리간 비교하였다. 모든 생장관련형질들(신초의 생장, 엽수 및 엽록소함량)에서 처리간 고도의 통계적 유의차가 인정되었으며, 뿌리생장의 경우 개나리삽목묘에서는 처리간 통계적 유의차가 인정되었으나, 플라타너스삽목묘에서는 처리간 유의차가 인정되지 않았다.

The purpose of this study was to identify the variant of Platanus occidentalis, whose bark looks white, also can be classified as P. occidentalis and to examine its genetic difference from the general P. occidentalis. For the variant identification of P. occidentalis, SNP and ISSR analysis were used in this study. Thirteen samples of P. occidentalis white variant were collected in Cheongju and 24 samples of normal P. occidentalis obtained in Cheongju, Pyongtaek, Ansan, Suwon, Osan and Jincheon area. ITS 1 and ITS 2 sequences of white variants were identical with those of P. occidentalis. We could not find any sequence difference between normal and white P. occidentalis. So we concluded that the white variant belongs to normal P. occidentalis even their bark is white and peeled easily. By ISSR test, 98 amplicons were acquired using 10 primers. P. occidentalis and white P. occidentalis showed different band patterns from the UBC #834. According to the result of Nei (1979)'s genetic distance analysis, the members of white P. occidentalis were grouped more tightly than the members of normal P. occidentalis. The UPGMA dendrogram shows that the variant and P. occidentalis divided widely into two groups. These results show that the phenotype of P. occidentalis white variant is caused by genetic factors rather than by environmental factors.