고추냉이 시기별 생육특성을 검정하기 위하여 정식 후 10개월과 15개월에서 수확하여 특성을 조사한 결과 10개월에 비하여 15개월에서 지상부 생육 중 엽장, 엽폭, 주경엽수 등은 큰 증가를 보였으나, 총엽수, 얼자수 등은 감소하였다. 근경의 건물 분배율은 정식 10개월에서는 엽병 > 엽> 근경 > 분지경 순서이었으나, 15개월에서는 엽병 > 근경 > 엽 > 분지경 순서였다. 근경의 경도 및 allylisothiocyanate함량은 10개월에 비하여 15개월에서 13배 정도 높았다. 근경의 건물율은 10개월에서는 두부와 미부간에 큰 차이가 있었으나 15개월에서는 차이가 없었다.
This experiment was conducted to evaluate the contents of allylisothiocyanate and the change of hardness of the rhizome part of Wasabia japonica Matsum. by months after planting in water cultivation. No difference was found in plant height and leaf length at 10th and 15th months after planting, respectively. The rhizome part of wasabi was cut half and the dry weight was weighed. Dry weight was obtained as 17.3% and 21.6% from fresh lower and upper part of rhizome at 10th month after planting. At 15th month after planting, dry weight was obtained as 21.2% and 22.3% from fresh lower and upper part of rhizome. The contents of allylisothiocyanate were 0.047 mg/g and 0.633 mg/g at 10th and 15th month, respectively.
