Effects of CCC and Diniconazole on the Growth Retarding of Grafted Cactus

접목선인장의 생육 억제에 미치는 CCC, Diniconazole 처리 효과

  • Choi, I-Jin (Department of Plant Biotechnology, Dongguk University) ;
  • Jeong, Myeong-Il (Floriculture Research Division, National Horticultural Research Institute) ;
  • Kim, Mi-Seon (Floriculture Research Division, National Horticultural Research Institute)
  • Received : 2008.07.04
  • Accepted : 2008.10.13
  • Published : 2008.12.31

Abstract

This experiment was conducted to investigate the effect of growth retardants such as CCC and diniconazole in grafted cactus for control shipping product of grafted cactus, which had high degree of dependence upon export. The PGRs were 50, 100, 150 $mg{\cdot}L^{-1}$ CCC and diniconazole, respectively. Treatment of diniconazole and CCC not reduced diameter on Gymnocalycium mihanovichii var. friedrichii but number of tubercle reduced significantly according to the increase of diniconazole treatment, control was 7.2 tubercles, but with 100 $mg{\cdot}L^{-1}$ diniconazole was 6.4 tubercles. Treatment of diniconazole and CCC reduced significantly diameter and tubercle number on Chamaecereus silvestrii f. variegata at higher concentration. Diameter and height reduced significantly the treatment of CCC with 3.3 and 13.4 mm of 150 $mg{\cdot}L^{-1}$, respectively. Dry weight of root, rootstock and scion decreased at higher concentrations of CCC and diniconazole in Chamaecereus silvestrii f. variegata. The most effective method of plant growth retardants for controlling of shipping time was the 150 $mg{\cdot}L^{-1}$ CCC treatment.

본 연구는 수출용 접목선인장의 연중 출하물량을 조절하는데 도움이 되기 위한 목적으로 생장억제제인 CCC와 diniconazole을 처리하여 접목선인장의 생육을 단기간 억제하는 방법을 알기 위하여 수행하였다. 비모란선인장에 diniconazole을 처리하여 구경을 조사한 결과 약 1.1mm 정도 구경이 감소하였으며 자구수는 무처리의 경우 7.2개였으나 $100\;mg{\cdot}L^{-1}$ 처리에서 6.4개로 자구수 감소에 유의성이 있었다. 산취선인장의 CCC 처리 30일 후의 생육특성을 조사한 결과 모든 처리구에서 구경, 구고, 자구수 등에 억제 효과가 있었으며 특히 $150\;mg{\cdot}L^{-1}$ 처리의 경우 무처리 보다 구경이 3.3 mm, 구고가 13.4 mm 감소하였다. 따라서 산취선인장 정식 후 재배과정에서 출하시기를 조절할 목적으로 생장억제제를 시용할 경우 $150\;mg{\cdot}L^{-1}$ CCC 처리가 가장 효과적이었다.

Keywords