Abstract
This experiment was conducted to clarify the effects of cycloheximide and holding solution on vase life of cut 'Blue Magic' iris. The vase life of iris flowers held in 3% sucrose (S) + $100mg{\cdot}L^{-1}$ hydroxy quinoline sulfate (HQS) + $50mg{\cdot}L^{-1}$ $AgNO_3$ + $100mg{\cdot}L^{-1}$ Benzylaminopurine (BA), 3% S + $100mg{\cdot}L^{-1}$ HQS + $10{\mu}M$ cycloheximide (CHI), or 3% S + $100mg{\cdot}L^{-1}$ HQS + $50{\mu}M$ CHI were much longer than those held in distilled water. Squeeze stem phenomenon that showed at a holding solution containing $200mg{\cdot}L^{-1}$ HQS disappeared at a holding solution containing $100mg{\cdot}L^{-1}$ HQS. The holding solution containing 3% S + $100mg{\cdot}L^{-1}$ HQS + $50mg{\cdot}L^{-1}$ $AgNO_3$ + $100mg{\cdot}L^{-1}$ BA extended the most effective treatments on vase life, fresh weight, water balance, and flowering of cut iris flowers. However, the holding solution containing 3% S + $100mg{\cdot}L^{-1}$ HQS + $10{\mu}M$ CHI and 3% S + $100mg{\cdot}L^{-1}$ HQS + $50{\mu}M$ CHI was not effective in solution uptake or transpiration, but did result in high water balance. Iris flowers treated with CHI at the half-open flower stage showed increases in ornamental value, such as full flower opening and extended vase life. To improve flower quality and prolonging vase life of cut iris flowers, a holding solution containing $50{\mu}M$ CHI can be used continuously from the half-open stage.
본 연구는 절화 아이리스 '블루매직'의 수명에 미치는 cycloheximide(CHI)와 보존용액의 효과를 알기 위해 실시하였다. 아이리스의 절화수명은 증류수구에 비해 3% sucrose (S) + $100mg{\cdot}L^{-1}$ HQS + $50mg{\cdot}L^{-1}$ $AgNO_3$ + $100mg{\cdot}L^{-1}$ BA 또는 3% S + $100mg{\cdot}L^{-1}$ HQS + $10{\mu}M$ CHI, 3% S + $100mg{\cdot}L^{-1}$ HQS + $50{\mu}M$ CHI 처리구에서 현저히 길었다. $200mg{\cdot}L^{-1}$ HQS를 보존용액에 첨가했을 때 나타나는 줄기 기부의 쪼그라듬 현상은 $100mg{\cdot}L^{-1}$ HQS 처리 시 완전히 없어졌다. 3% S + $100mg{\cdot}L^{-1}$ HQS + $50mg{\cdot}L^{-1}$ $AgNO_3$ + $100mg{\cdot}L^{-1}$ BA 처리는 절화수명, 생체중, 수분균형, 개화에 가장 효과적이었다. 3% S + $100mg{\cdot}L^{-1}$ HQS + $10{\mu}M$ CHI, 3% S + $100mg{\cdot}L^{-1}$ HQS + $50{\mu}M$ CHI 보존용액 처리시 용액흡수량과 증산량은 낮았으나 수분균형은 높았다. 반개화 상태에서 수확한 아이리스에 CHI 처리는 노화를 지연시켰고 절화수명도 현저히 증가시켰다. 봉오리 단계의 아이리스에 CHI를 함유한 보존용액을 처리하면 개화가 잘 이루어지지 않으나, 꽃잎이 벌어진 상태에서 CHI를 함유한 보존용액 처리를 하면 개화가 완전하게 이루어졌다.
