earticle

영어

The study was conducted to understand the process of fruit development and estimate harvesting time in a red-flesh kiwifruit cultivar, 'Hongyang', 3 years old planted in the plastic house of a farm located in Jeju city from early March, 2015 to mid November, 2016. Cultural practices including artificial pollination, canopy management, fertilization management, and chemical spray were under the guideline of a general management. The developmental stages of vine and fruits were classified by BBCH (Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie) scale and compared to days after anthesis DAA). Fruit size was measured DAA one month and two months and fruit fresh weight and dry matter were measured DAA two months, respecively, thereafter at an interval of 20 days, and additionally at an interval of 10 days from DAA 182 estimated at harvest. Fruit size had been increased by the final harvesting time, however fruit fresh weight and dry matter were highest at 110.9 g and 18.2% DAA 182 and 187, respectively and decreased thereafter a little bit. Soluble sugars was increased DAA 121 gradually and DAA 182 very rapidly. Starch content was highest DAA 141 at 20.9 mg·g-1 FW, decreased thereafter gradually. The resutls indicated that ‘Hongyang' kiwifruit might have an optimum harvest around DAA 182 estimated by BBCH scale at 85.