Seasonal Difference of Fruit Quality Attributes and Physiological Disorders in Paprika Cultivars under a Simulated Export System

Abstract

This study evaluated seasonal changes in various fruit quality attributes and the incidence of physiological disorders in the blocky and conical types of paprika cultivars using a simulated export system. The effects of three different pericarp colors were also investigated. 'Scirocco', 'DSP 7054', and 'Volante' cultivars were used as a blocky type, while 'Raon red', 'Raon orange', and 'Raon yellow' cultivars were used as a conical type with red, orange, and yellow pericarp color, respectively. The fruit was shipped at 10°C for two weeks, stored at 10°C for one week, and then transferred at 22°C for one week to simulate export by shipping. Storage temperatures and relative humidity levels greatly fluctuated in the winter season as compared to the summer season. Thus, fruit weight loss was higher in the winter season than in the summer season regardless of the cultivar type. However, the pericarp firmness was lower in the winter season. The soluble solids content and titratable acidity were higher in conical type than in the blocky type of paprika cultivar and highest in the 'Raon red' cultivar. The pericarp lightness and hue angle responded differently during the export season, depending on the pericarp color and fruit type. The incidence and severity of fruit shriveling were higher in the winter season than in the summer season, irrespective of the cultivar. Fruit shriveling was less severe in the conical type than in the blocky type, regardless of the pericarp color. Moreover, the incidence and severity of fruit softening, pedicel wilting, and pedicel browning were higher in the winter season than in the summer season. Therefore, the results indicate that the storage humidity levels likely play a pivotal role in the postharvest handling of paprika fruit quality during the seasonal export period. Thus, careful consideration of various techniques that are contingent upon the season of export and the specific type of fruit is required.

Development of Gene-based Markers for capsanthin-capsorubin synthase and zeaxanthin epoxidase Genes to Distinguish Fruit Colors in Paprika (Capsicum annuum L.)

“…Additional key words: carotenoid, CCS, HRM, indel, SNP, ZEP 서 언 국내에서 파프리카(Capsicum annuum L.)는 착색단고추(colored sweet pepper)를 의미하며 과형에 따라 블로키, 미니, 코 니컬 등으로 구분된다 (Lee et al, 2010). 파프리카는 크기, 과색, 광택성, 경도, 단맛 등에 의해 품질이 결정되며, 특히 숙과색은 파프리카를 구매하는데 주된 결정요인으로 작용한다 (Lee et al, 2016;Kim et al, 2018;Byeon et al, 2023;Nie et al, 2023). 카로티노이드(carotenoid)는 식물의 2차 대사산물 geranylgeranyl pyrophosphate(GGPP) 두 분자가 phytoene synthase (PSY)에 의해 결합을 하여 phytoene이 합성되며, 이후 여러 생합성 효소들에 의해 다양한 카로티노이드 물질로 합성이 되어 식물의 과실, 태좌, 종자, 뿌리 등에 축적되는 것으로 알려져 있다(Fig.…”

Comparison of Growth and Fruiting Characteristics between Cultivars for the Selection of Appropriate Domestic Cultivars when Cultivating Paprika in High-Temperature Periods

“…국내에서는 과실 크기에 따른 생육 특성 (Jang and Chung, 1998), 고랭지 하계작형 토양재배에 적합한 품종 선발 (Lee et al, 2001), 남부지역 고온기의 품종 간 생육 및 수량 특성 (Choi et al, 2004), 환경조건과 재배여건에 적합한 파프리카 수출용 품종 선발 (An et al, 2005) 신품종 육성을 위한 하계작형 품종 선발 (Won et al, 2009), 수출을 위한 품종 간 생육 및 과실 특성 (Lee, 2011), 여름철 소과형 파프리카 품종의 생육 및 수량 비교 (Rhee et al, 2012), 국내 기상환경에 적합한 적색계열 파프리카 품종 선발 (Kim et al, 2012), 겨울정식 파프리카의 적정품종선정 (Jang et al, 2016), 하계작형 국산 파프리카 적정품종 선정 (Park et al, 2016), 국산 품종의 동부지역 재배법 개발 (Park et al, 2017), 수출용 국산 품종 보급확대를 위한 실증실험 (Park et al, 2020), 광합성 모델을 이용한 파프리카의 광합성 분석 (Jung et al, 2021), 동계작형 국산품종 보급을 위한 생육 및 수량비교 (Bae et al, 2021), 고온기 대형 단동 하우스에서의 파프리카 품종별 재배 실증 (Yeo et al, 2021), 근권부 냉방 처리를 통한 광 합성과 성장 변화 (Lee et al, 2022), 국산 품종 과실에 대한 내부 품질 및 수출을 위한 저장기술 등의 연구가 수행되었고 (Kye et al, 2022;Byeon et al, 2023), 최근 개발된 품종들은 농가의 좋은 반응을 얻기 시작하면서 연구농업회사법인 코파와 함께 농가 실증시험을 진행되었다 (Park et al, 2020).…”