Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
권호 표지

Effect of Water States of Fruit Vesicle and Leaf on Fruit Quality in 'Trifoliate' Orange and 'Swingle citrumelo' Rootstock of 'Shiranuhi' [(Citrus unshiu ${\times}$ C. sinensis) ${\times}$ C. reticulata] Mandarin Hybrid, M16 A Line in Plastic Film House Cultivation

시설재배 '부지화' M16 A계통의 '탱자'와 '스윙글 시트루멜로' 대목과 과실 및 잎의 수분상태가 과실품질 차이에 미치는 영향

  • Han, Sang-Heon (Faculty of Bioscience & Industry, Jeju National University) ;
  • Kang, Jong-Hoon (Jeju Special Self-Governing Province Agricultural Research and Extension Service)
  • 한상헌 (국립 제주대학교 생물산업학부) ;
  • 강종훈 (제주특별자치도농업기술원)
  • Received : 2011.03.07
  • Accepted : 2011.08.30
  • Published : 2011.09.30
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Abstract

This experiment was conducted to investigate the effect of water states (water, osmotic potential and turgor pressure) of fruit vesicle and leaf on soluble solids and organic acid contents of fruits of 'Shiranuhi' mandarin hybrid, M16 A line during the fruit maturing season in plastic house cultivation. The 'Shirauhi' grafted on 'Swingle citrumelo', strong strength of rootstock, produced fruit with lower soluble solids and organic acid content than 'Trifoliate' orange rootstock. The fruits vesicle water potential and turgor pressure measured before dawn in 'Swingle citrumelo' were higher tendency than the 'Trifoliate' orange, but osmotic potential values were lower than the 'Trifoliate' orange. The changes of leaf water potential were very similar to the fruit. The results suggest that in the 'Shirauhi' fruits grafted on two rootstocks changes of soluble solids and organic acid content of the fruit were influenced by the leaf water potential and the osmotic potential of the fruit vesicles, which might be caused by the difference of root distribution between two rootstocks.

본 연구에서는 M16 A계통 '부지화'를 강세대목인 대목 '스윙글 시트루멜로' 또는 보통대목인 '탱자'에 접목하여 무가온 하우스에서 재배한 잎과 과실 사양의 수분상태 변화 및 과실 성숙기의 과실 가용성 고형물과 산 함량변화를 조사했다. 강세대목인 '스윙글 시트 루멜로'와 보통대목인 '탱자'에 접목한 M16 A계통 '부지화'의 대목에 따라 과실의 품질은 영향을 받는 것으로 나타났는데, '스윙글 시트루멜로' 대목은 '탱자' 대목보다 과실 가용성 고형물과 산함량이 낮았다. 동트기 직전에 측정된 과실사양의 수분포텐셜 및 팽압은 '스윙글 시트루멜로' 대목이 '탱자' 대목보다 조금 높은 경향을 보였으나, 삼투 포텐셜의 값은 '탱자' 대목이 '스윙글 시트루멜로' 대목보다 낮았다. 과실사양과 같은 시간대에 측정된 엽수분포텐셜 값의 변화도 과실 사양의 삼투포텐셜 변화와 유사한 경향을 보여주었다. 이상의 결과로 보아, M16 A계통 '부지화'에 있어 두개의 대목에 따라 잎의 수분 상태와 과실사양의 삼투포텐셜 차이가 있었으며, 이러한 차이로 인하여 과실 가용성 고형물과 산 함량에 차이가 나타나는 것으로 판단되며, 대목에 따른 수분 상태와 과실 품질의 차이는 대목의 뿌리분포가 영향을 미쳤기 때문인 것으로 사료된다.

Keywords

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