Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Qualitative Changes in Grafted Cactus Cultivars during Simulated Transportation

모의운송시 접목선인장의 품종별 품질변화

  • Yoon, Jung-Han (Department of Environmental Science, Konkuk University) ;
  • Song, Jong-Eun (Department of Environmental Science, Konkuk University) ;
  • Byoun, Hye-Jin (Department of Environmental Science, Konkuk University) ;
  • Park, Ju-Hyun (Department of Environmental Science, Konkuk University) ;
  • Kim, Young-Ho (Department of Agricultural Biotechnology, Seoul National University) ;
  • Son, Ki-Cheol (Department of Environmental Science, Konkuk University)
  • 윤정한 (건국대학교 환경과학전공) ;
  • 송종은 (건국대학교 환경과학전공) ;
  • 변혜진 (건국대학교 환경과학전공) ;
  • 박주현 (건국대학교 환경과학전공) ;
  • 김영호 (서울대학교 농생명공학부) ;
  • 손기철 (건국대학교 환경과학전공)
  • Received : 2011.06.23
  • Accepted : 2011.09.07
  • Published : 2011.12.31
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Abstract

This experiment was conducted to study the qualitative changes of grafted cactus after harvest and to examine the decomposition characteristics of pathogenic fungi which occurs or grows during the simulated shipping period. Plant materials with four varieties of Gymnocalycium mihanovichii var. friedrichii including, 'Hukwang', 'Huhong', 'Hwangwol', 'Yeunhwa' and two varieties of Chamaecereus silvestrii f. variegate such as 'Goldcrown' and 'Yellowcrown' were used. During the simulated shipping period, the fresh-weight, bulb diameter, carbon dioxide emission rate, and decomposition rate were observed. The regeneration rate and decomposition rate were observed for the grafted cactuses that were placed in a greenhouse environment with a temperature of $28{\pm}12^{\circ}C$ and humidity of $36{\pm}15.3%$ after 40 days of simulated shipping. There were reductions in the fresh-weight and bulb diameter in every variety as time passed while the carbon dioxide emission rate showed no meaningful difference by each variety. Furthermore, the decomposition rate in the scion was higher than in the stock. According to the analysis of pathogenic fungi by decomposition characteristics, Alternaria sp., Cladosporium sp., Colletotrichum sp., Fusarium sp., Penicillium sp. in G. mihanovichii var. friedrichii were found and Alternaria sp., Bipolaris sp., Cladospoirum sp. in C. silvestrii f. variegate were identified. Therefore, to maintain and improve the quality of grafted cactus, it is necessary to analyze the factors of decomposition from the time of harvest until the point of export and develop a process technology to minimize the decomposition rate.

본 실험은 접목선인장의 품질변화을 조사하고, 선박운송 중 발생되는 부패균에 대하여 조사하고자 실시하였다. 식물재료로 비모란의 '후광', '후홍', '연화', '황월'의 네 품종을, 산취의 '골드크라운', '옐로우크라운'를 사용하였으며, 모의 운송기간 중 생체중, 구경, $CO_2$ 발생량, 부패율을 측정하였다. 모의운송 40일 후에는 접목선인장을 온실 환경(평균온도 $28{\pm}12^{\circ}C$, 평균습도 $36{\pm}15.3%$)하에 두고 28일간 재생률과 부패율을 조사하였다. 모든 품종에서 시간이 지남에 따라 생체중과 구경이 감소되는 것으로 나타났으며, $CO_2$ 발생량은 품종간 유의한 차이를 보이지 않았다. 접수 부분이 삼각주 부분 보다 부패율이 높은 것으로 조사되었으며, 부패에 따른 부패균을 분석한 결과, 비모란에서는 Alternaria sp., Cladosporium sp., Colletotrichum sp., Fusarium sp., Penicillium sp. 등이 조사되었으며, 산취에서도 Alternaria sp., Bipolaris sp., Cladospoirum sp. 등이 조사되었다. 따라서 접목선인장의 품질을 유지 및 향상시키기 위해서는 수확 후 부터 수출까지 부패발생 요인을 분석하고, 부패율을 최소화시키기 위한 처리기술 개발이 필요하다고 판단된다.

Keywords

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