Journal of Practical Agriculture & Fisheries Research (현장농수산연구지)

Korea National University of Agriculture and Fisheries (국립한국농수산대학교 교육개발센터)
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Effect of GA3 Treatment on the Flowering in Tuber of Zantedeschia 'Black Magic'

GA3 처리가 유색칼라 괴경의 개화에 미치는 영향

  • Published : 2005.03.30
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Abstract

Tubers(4-5cm diameter) of Zantedeschia 'Black Magic' were used to study the induction of flowering in GA3 soaking times and concentration. The GA3 soaking were 10 seconds and 30 minutes at the GA3 concentrations of 50, 100, 250, and 500 mg·L1. The time to emergence in GA3 treatment were 1.1~4.0 days shorter than control Growth characteristics were good in GA3 treatment but that was no significance in GA3 soaking time and concentration. When GA3 soaking time and concentration were increased, days to flowering was shorter, but flower stalk length, flower stalk width, flower length, flower width were no difference. The number of flower per tuber was most as 4.0~4.3 in 250~500 mg·L1 GA3 concentration and that was about 2 times compared to control. The normal flower ratio and bulb enlargement were similar compared with GA3 soaking time and concentration. GA3 250~500 mg·L1 treatment is necessary for improvement of number of flowers per bulb.

GA3 침지시간과 농도에 따른 출현소요일수는 GA3 처리가 무처리에 비하여 1.1~4.0일 단축되었으며 생육특성도 GA3 처리가 양호한 경향이었으나 GA3 침지 시간과 농도에 따른 차이는 적었다. 개화소요일수는 GA3 처리가 무처리보다, 30분 침지가 10초 침지보다, 그리고 농도가 높을수록 단축되었으나 화경장, 화경폭, 화고 및 화폭 등은 처리간 차이가 없었다. 또한 개화수는 GA3 농도에 따른 효과가 커서 250~500 mg·L-1 처리가 4.0~4.3개로 최고 2배 많았으나 GA3 침지 시간에 따른 개화수 차이는 크지 않았다. 정상화율과 구근비대상황은 침지시간 및 농도에 관계없이 비슷하였다. 이로써 GA3 처리는 개화수 증가를 위해 반드시 필요하며 침지시간에 상관없이 처리농도는 250~500mg·L-1가 적당할 것으로 판단된다.

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