포도 ‘캠벨얼리’ 품종의 엽수 조절에 따른 과실 품질변화

국문 초록 (Abstract)

포도 ‘캠벨얼리’ 품종의 결과지당 적정 엽수를 구명하기 위해 만개 30일 후에 결과지당 2송이를 착과시키고, 첫 번째 송이는 70~75립, 두 번째 송이는 35~40립으로 조절하고 변색기 이후 과실의 품질변화를 조사하였다. 과실의 당도는 변색기 이후 28일 동안 급격히 증가하였으나, 그 이후에는 일정한 수준을 유지하였다. 결과지당 15엽 처리구는 착색초기부터 빠르게 증가되어 착색 28일 후에 16.0°Bx 이상 되었으나, 결과지당 10엽 처리구는 12.0°Bx로 증가폭이 적었고, 결과지당 5엽 및 0엽 처리구는 당도 축적이 거의 없었다. 산도는 모든 처리구에서 28일 동안 감소되었고, 결과지당 엽수가 많을수록 감소폭도 컸다. 결과지당 15엽 처리구는 변색기 이후 7일 동안 빠르게 감소된 후 수확기까지 꾸준히 감소되어 0.5%로 되었으나, 결과지당 5엽 및 0엽 처리구는 감소세가 완만하여 수확기에도 산 함량이 1.0%로 높았다. 과피색은 결과지당 15엽에서 hunter L과 b값이 변색기 이후 7일 동안 빠르게 감소되었고, 그 이후에는 완만하게 감소되어 수확기에 가장 낮은 값을 나타냈고, hunter a값은 변색기 이후 7일 동안 빠르게 증가되었고, 그 이후에는 약간 감소되었다. 그러나 결과지당 5엽 및 0엽 처리구는 hunter L과 b값이 변색기부터 완만하게 감소되었고, hunter a 값은 착색초기에는 현저히 낮았으나, 수확기까지 꾸준히 증가되었다. 총 안토시아닌은 결과지당 15엽 처리구에서 변색기 7일 후부터 빠르게 증가된 후 변색기 28일 후부터는 일정한 수준을 유지하였고, 다른 처리구는 변색기 이후 큰 차이가 없었다.

다국어 초록 (Multilingual Abstract)

This study aimed to determine optimum leaves per shoot in ‘Campbell Early’ grape through investigating changes of fruit quality after veraison 70~75 berries of first cluster and 35~40 berries of second cluster at 30 days after full bloom. Soluble solids content (SSC) increased dramatically during 28 days after veraison and afterwards it was stabilized. 15 leaves per shoot treatment showed fast increase of SSC from early veraison and reached to over 16.0°Bx at 28 days after veraison. No considerable increase of SSC were occurred on either 5 or 0 leaves per shoot treatments after veraison. Titratable acidity (TA) was decreased continuously during 28 days of berry ripening in the all treatments. In 15 leaves per shoot treatment, TA decreased fast during first 7 days after veraison and continuously decreased to 0.5% by harvest time. While, 5 and 0 leaves per shoot treatments showed TA decrease slightly only at the early veraison. Hunter L and b values of 15 leaves per shoot treatment decreased fast during first 7 days of veraison, and gradually decreased by 14 days, whereas Hunter a value increased fast during the first 7 days from veraison. Total anthocyanin content in 15 leaves per shoot treatment increased fast from 7 days of veraison and the increase became slow after 28 days of veraison. Other treatments showed no significant difference from veraison to harvest time.

목차 (Table of Contents)

• Abstract
• 서론
• 재료 및 방법
• 결과 및 고찰
• 적요
• 인용문헌

참고문헌 (Reference)

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