Journal of agriculture & life science (농업생명과학연구)

Institute of Agriculture & Life Science, Gyeongsang National University (경상대학교 농업생명과학연구원)
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Effects of Cutting Condition on Rooting and Early Growth of a Rare Endemic Juniperus chinensis var. sargentii HENRY

삽목조건이 희귀수종 눈향나무의 발근과 초기생장에 미치는 영향

  • Ahn, Sang-Yeol (Dept. of Horticulture, Gyeongnam National University of Science and Technology) ;
  • An, Byung-Seop (Dept. of Horticulture, Gyeongnam National University of Science and Technology) ;
  • Park, Soo-Jeong (Dept. of Horticulture, Gyeongsang National University) ;
  • Kim, Zhoo-Hyeon (Dept. of Horticulture, Gyeongsang National University) ;
  • Lee, Sang-Woo (Dept. of Horticulture, Gyeongnam National University of Science and Technology)
  • 안상열 (경남과학기술대학교 원예학과) ;
  • 안병섭 (경남과학기술대학교 원예학과) ;
  • 박수정 (경상대학교 원예학과(농업생명과학연구원)) ;
  • 김주현 (경상대학교 원예학과(농업생명과학연구원)) ;
  • 이상우 (경남과학기술대학교 원예학과)
  • Received : 2011.07.25
  • Accepted : 2011.08.25
  • Published : 2011.08.31
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Abstract

This study was conducted to elucidate the best cutting condition in propagation of Juniperus chinensis var. sargentii in respect of survival rate, rooting rate, and early growth after cutting via process of cutting time, cutting media, cutting type and growth regulators. As for cutting time, rooting rate was 68.3% on April, which was higher than 39.5% on May and 32.5% on June. The best cutting media was stream sand of rooting rate 72.7%. Those of mixed soil and decomposition were 40.1% and 27.5% each. The effect of growth regulators was different according to the kind of cutting media. There was no effect on stream sand media which showed the highest rooting rate, while it was very effective on the media of decomposition of granite, which rooting rate showed the lowest. Hardwood as cutting materials showed somewhat higher survival and rooting rate compared to semi-hardwood. The cutting with hardwood condition to stream sand on April, it is regarded to be the most effective condition for Juniperus chinensis var. sargentii to increase survival and rooting rate. Therefore in this experiment it is considered that the best season cutting is April, and the most useful media and plant materials stream sand, and hardwood respectively.

눈향나무의 효율적인 삽목번식 체계를 확립하고자 삽목시기, 삽목용 상토, 삽수, 발근촉진제의 종류를 다르게 하여 삽목 후의 생존율, 발근율 및 초기생장상태를 조사하였다. 삽목시기에 따른 발근율은 4월 68.3%, 5월 39.5%, 6월의 32.5%로서 4월이 가장 적합하였다. 삽목용 상토는 냇모래 72.7%, 혼합토 40.1%, 마사토 27.5%로서 냇모래가 가장 높은 발근율을 보였고, 뿌리의 생장도 좋았다. 발근촉진제 처리 효과는 발근율이 높은 냇모래에서는 효과가 없었지만, 발근율이 낮은 마사토에서는 무처리구 41.1% 에 비해 IAA 64.4%, IBA 64.4%, NAA 68.9%로서 발근율을 향상시키는 효과가 있었다. 삽수의 숙도면에서는 숙지삽을 이용하는 것이 반숙지삽을 이용하는 것보다 생존율이나 발근율이 다소 높아지는 경향을 보였다. 따라서 눈향나무 삽목에 있어서 가장 적합한 조건은 냇모래에 숙지삽 상태로 4월에 삽목하는것이라 할 수 있다.

Keywords

Acknowledgement

Supported by : 기성회

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