Effect of Temperature on Winter Growth in Grafted Cactus (Chamecereus silvestrii) 'Hee-Mang'

접목선인장 산취 '희망'의 동절기 온도처리가 생육에 미치는 영향

  • Nam, Sang-Yong (Department of Horticulture, Sahmyook University) ;
  • Soh, Chang-Ho (Natural Science Research Institute, Sahmyook University) ;
  • Park, Sun-Mi (Natural Science Research Institute, Sahmyook University) ;
  • Cho, Chang-Hui (Cactus Research Institute, Gyeonggi-do A.R.E.S) ;
  • Park, In-Tae (Cactus Research Institute, Gyeonggi-do A.R.E.S)
  • 남상용 (삼육대학교 원예학과) ;
  • 소창호 (삼육대학교 자연과학연구소) ;
  • 박선미 (삼육대학교 자연과학연구소) ;
  • 조창휘 (경기도 농업기술원 선인장연구소) ;
  • 박인태 (경기도 농업기술원 선인장연구소)
  • Received : 2009.06.12
  • Accepted : 2009.06.24
  • Published : 2009.06.30

Abstract

This study was carried out to investigate growth response of Chamecereus silvestrii 'Hee-Mang' in accordance to day and night temperature in winter season. The plant height was maximized at $20/15^{\circ}C$ (day/night). Globe height and diameter were the highest in the day temperature of $25^{\circ}C$. Globe diameter was relevant high by increasing day temperature. Hunter 'a' value is significantly lower by decreasing of night temperature whereas 'b' value is higher. Characteristic of de-rooted grafting cactus was continually decreased until 15 days, then started growth again.

동절기 산취(Chamecereus silvestrii) '희망'의 주 야 온도를 달리하며 처리한 결과 초장은 주간온도 $20^{\circ}C$와 야간온도 $15^{\circ}C$에서 가장 크게 나타났다. 구경은 주간온도 $25^{\circ}C$에서 구직경과 구고의 생육이 우수하였고, 주간온도 $25^{\circ}C$에서는 모든 야간온도에서 구직경 생육이 양호하였으며 구고는 주간온도 $25^{\circ}C$에서는 $20^{\circ}C$에 비해 야간온도가 $25^{\circ}C$로 높을수록 생육이 좋았다. 주 야간온도 조합의 합산온도가 높을수록 구직경과 구고신장이 증가하는 경향을 나타났다. 색도에서 Hunter 'a' 값은 야간온도가 높을수록 낮아졌으나 'b' 값은 높아져 야간온도가 높으면 탁도가 증가하였다. 또한 구직경과 구고변화의 증가가 다시 시작되는 기점은 정식 후 15일로 나타났다.

Keywords

References

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