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야간온도 변화에 따른 망고 'Irwin'의 개화, 과실특성 및 수체생육

Flowering, Fruit Characteristic and Shoot Growth of the Mango, cv. 'Irwin' in Response to D ifferent Night Temperature

  • 임찬규 (농촌진흥청 국립원예특작과학원 온난화대응농업연구소) ;
  • 안현주 (농촌진흥청 국립원예특작과학원 온난화대응농업연구소) ;
  • 전미경 (농촌진흥청 국립원예특작과학원 온난화대응농업연구소) ;
  • 김설아 (농촌진흥청 국립원예특작과학원 온난화대응농업연구소) ;
  • 정선우 (농촌진흥청 국립원예특작과학원 온난화대응농업연구소)
  • Lim, Chan Kyu (Research Institute of Climate Change and Agriculture, NIHHS, RDA) ;
  • An, Hyun Joo (Research Institute of Climate Change and Agriculture, NIHHS, RDA) ;
  • Jeon, Mikyoung (Research Institute of Climate Change and Agriculture, NIHHS, RDA) ;
  • Kim, Seolah (Research Institute of Climate Change and Agriculture, NIHHS, RDA) ;
  • Chung, Sun Woo (Research Institute of Climate Change and Agriculture, NIHHS, RDA)
  • 투고 : 2021.11.15
  • 심사 : 2021.12.20
  • 발행 : 2021.12.30

초록

본 연구는 꽃눈발아기부터 과실비대기까지 야간온도의 조정이 망고 'Irwin' 품종의 개화, 과실특성 및 수체생육에 미치는 영향을 조사함으로써 망고 재배를 위한 적정 야간온도를 구명하고 시설하우스 내부의 온도관리 방안을 모색하고자 수행하였다. 야간온도 처리에 따른 개화기, 만개기, 착과기, 성숙기 그리고 수확기는 온도가 높을수록 빨라지는 경향을 보였다. 꽃대길이는 야간온도가 10℃일때 가장 짧았으며 온도가 높을수록 생육이 좋아졌으나 15℃와 20℃의 처리간에는 유의차는 없었다. 과실 종경과 무게는 야간온도가 15℃와 20℃가 10℃보다 높게 나타났으며 가용성고형물함량(SSC)와 산함량(TA)은 야간온도 처리간에 차이를 보이지 않았다. 그리고 과실의 경도와 과피의 색도는 야간온도가 높을수록 높게 나타났다. 과실 수확이 끝나고 전정을 한 이후 발생한 가지의 생육은 처리간 유의차를 보이지 않았다. 따라서 망고의 시설하우스 재배 시 과실의 수량을 높이고 고품질 과실을 생산하기 위해서는 야간 최저온도를 15℃ 또는 20℃로 설정하는 것이 적절하며 난방비 절감을 위해서는 야간 최저온도를 15℃로 설정하여 재배하는 것이 바람직한 것으로 판단된다.

The effect of night temperature was investigated on mango (Mangifera indica cv. Irwin) for setting appropriate night temperature and managing mango cultivation in a greenhouse. Different night temperatures (10, 15, and 20℃) were treated from budding to fruit development in mango trees. As night temperature increased, the initiation of flowering, full blooming, fruiting, and fruit development tended to be accelerated. There were no significant differences in the growth of shoots flushed after the fruit harvest among trees treated with different night temperatures. The lengths of the flower stalk were the shortest at 10℃ of night temperature; however, there were no significant differences between 15℃ and 20℃ of the night temperature. The length, diameter, and weight of mango fruits were higher at 15℃ and 20℃ than 10℃. Soluble solid contents and acidities showed no difference; the firmness and skin color were better as the night temperature increased. Accordingly, setting the minimum night temperatures to 15℃ or 20℃ can increase the number of fruits and produce high-quality fruits when cultivating mango in the greenhouse. Even the minimum night temperature to 15℃ can reduce heating costs in the greenhouse.

키워드

과제정보

본 논문은 농촌진흥청 연구사업(과제번호: PJ01430902)의 지원을 받았으며, 이에 감사합니다.

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