성숙기 야간온도 차이에 따른 흑구슬 포도의 과실품질

서지정보

· 발행기관 : 한국국제농업개발학회
· 수록지 정보 : 한국국제농업개발학회지 / 29권 / 2호
· 저자명 : 이석호, 김승덕, 박재성, 홍성택, 홍의연, 정성민, 허윤영, 남종철, 박정관

영어초록

This study was accomplished to investigate the effects of the night temperatures on the dark respiration and fruit quality of Heukgoosul grape at ripening time. The weight of cluster and berry increased significantly at 20oC than 30oC in night temperature. The length and diameter of berry harvested from the 20oC and 25C treatments also increased significantly. But there were no differences in the cluster length and diameter as well as the number of berries per cluster. When the amount of CO2 uptake was examined, the dark respiration decreased at 20C in comparison with 30C. On the other hand, the anthocyanin content of fruits harvested from the 20C treatment was higher 38.8 gcm-2 than that of 30C 27.7 gcm-2. Hunters value such as L(brightness), a(red chromaticity) and b(yellow chromaticity) showed the significance between 20C and 30C treatments. Soluble solid content and acidity of berry fruits harvested from the 20C treatment increased respectively by 3.4 Brix and 1.6 times. With consideration of the main characteristics of fruit harvested at 30C, the sugar-acid ratio 72.6% was lowered and the color chart showed the low value 7.1, therefore, the overall fruit quality was deteriorated. When the production yield rates of first harvest 23.6% and second harvest 44.7% were compared, the 20C treatment could move up the harvest time earlier.

참고자료

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