• 제목/요약/키워드: Strawberry

검색결과 819건 처리시간 0.024초

Characteristics of Apple, Persimmon, and Strawberry Slices Dried with Maltodextrin

  • Kim, Min-Hee;Kim, Kwan-Su;Song, Young-Bok;Seo, Won-Joon;Song, Kyung-Bin
    • Preventive Nutrition and Food Science
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    • 제14권4호
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    • pp.367-372
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    • 2009
  • Apple, persimmon, and strawberry slices were dehydrated after treating with 30, 50, and 80% (w/w) maltodextrin solution. The dried apple, persimmon, and strawberry slices were compared with hot air-dried and freeze-dried samples in terms of rehydration ratio, ascorbic acid, color, and sensory evaluation. The rehydration ratio of maltodextrin-treated samples was greater than that of hot-air or freeze-dried samples. Maltodextrin-treated samples had higher content of ascorbic acid than other dried samples. Additionally, maltodextrin-treated apple, persimmon, and strawberry slices had better color and sensory evaluations than those of freeze-dried or hot-air dried samples. These results suggest that, compared to other drying methods, dehydration of apple, persimmon, and strawberry slices using maltodextrin is very efficient, resulting in good rehydration capacity, minimal destruction of ascorbic acid, and good color and sensory evaluation.

길항성 근원 세균이 딸기 시설재배에서 발생하는 잿빛곰팡이병의 생물학적 제어에 미치는 영향 (Effects of Antagonistic Rhizobacteria on the Biological Control of Gray Mold in Greenhouse Grown Strawberry Plants)

  • 조정일;조자용;양승렬
    • 한국유기농업학회지
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    • 제13권2호
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    • pp.161-173
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    • 2005
  • This study was carried out to clarify the effects of antifungal bacterial strains isolated from the greenhouse soil grown strawberry plants on the growth inhibition of plant pathogen, gray mold (Botrytis cinerea) infected in strawberry plants in Damyang and Jangheung districts. Antagonistic bacterial strains were isolated and investigated into the antagonistic activity against gray mold. Screened ten bacterial strains which strongly inhibited Botrytis cinerea were isolated from the greenhouse grown strawberry plants, and the best antifungal microorganism designated as SB 143 was finally selected. Antifungal bacterial strain SB 143 was identified to be the genus Bacillus sp. based on the morphological and biochemical characterization. Bacillus sp. SB 143 showed 59.4% of antifungal activity against Botrytis cinerea. By the bacterialization of culture broth and heated filtrates of culture broth, Bacillus sp. SB 143 showed 93.1% and 32.1% of antagonistic activity against Botrytis cinerea.

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딸기 선별 및 포장작업의 자세개선을 위한 다층회전형 작업대 적용 (Application of a Multi-Level Rotating Table for Strawberry Sorting and Packing)

  • 박성하
    • 산업경영시스템학회지
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    • 제34권1호
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    • pp.97-102
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    • 2011
  • This study was performed to design and develop an ergonomic equipment for strawberry sorting and packing in agricultural working environments. Potential risk of work related musculo-skeletal disorders associated with farm workers performing strawberry sorting and packing was analyzed through interviews, field surveys, work measurement, and working posture evaluation. For the evaluation of working posture, we used REBA, OWAS, and RULA assessment methods to identify multi-factorial risk factors. Based on the result of comprehensive assessment, a new concept of multi-level rotating table for strawberry sorting and packing was proposed to modify awkward working postures and improve the effectiveness of the farm work. Finally, the characteristics and effectiveness of new equipment was discussed in terms of improvements in productivity, safety, and subjective ratings of farm workers. The results of analysis showed that working conditions improved significantly.

딸기영농기술(營農技術)의 지역간(地域間) 차별성(差別性)과 영향요인(影響要因)에 관한 연구(硏究) (A Study on the Regional Difference in Strawberry Farming Technology and its Causal Factors)

  • 권용대
    • 농업과학연구
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    • 제22권2호
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    • pp.231-243
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    • 1995
  • This paper aims to study regional difference in strawberry farming technology and its causal factors based on the survey of controlled strawberry farmers in three major strawberry cultivating regions, which are Nonsan county of Chungnam Province, Damyang County of Junnam Province and Guchang County of Kyungnam Province. There are differences in variety adoption, packaging and grading method which cause the farming income gap among these regions. Farmers of Guchang County, who adopt new variety Yeobong and packing system, raised highest gross receipts but ranked next to Damyang in terms of net income because of high packing cost. Farmers of Nonsan County earned lowest income because of poor quality and low price in spite of adopting packing cost saving method. Therefore, results of this study shows that successful farming technology depend on whether or not farmers adopt market oriented technology. It is suggested that direction of strawberry farming technology should focus on adopting new varieties which can contribute to increasing farmers' paid price and developing technology of reducing cost such as labor saving and packing machine.

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Genetic Diversity of Seven Strawberry mottle virus Isolates in Poland

  • Cieslinska, Miroslawa
    • The Plant Pathology Journal
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    • 제35권4호
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    • pp.389-392
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    • 2019
  • The studies on detection of the Strawberry mottle virus (SMoV) have been conducted in Poland for breeding programme purpose and for producers of strawberry plant material. Leaf samples collected from infected strawberry plants were grafted on Fragaria sp. Indicators which were maintained in greenhouse for further study. Seven Fragaria vesca var. semperflorens 'Alpine' indicators infected by SMoV were used for the study aimed on molecular characterization of virus isolates. Partial RNA2 was amplified from total nucleic acids using the RT-PCR method. The obtained amplicons separately digested with BfaI, FauI, HaeIII, HincI, and TaqI enzymes showed different restriction profiles. The nucleotide sequences analysis of RNA2 fragment confirmed the genetic diversity of the SMoV isolates as their similarity ranged from 94.7 to 100%. Polish isolates shared 75.7-99.2% identity with sequence of the virus strains from the Czech Republic, the Netherlands, and Canada. Phylogenetic analysis resulted in grouping of the isolates found in Poland together with one of the Czech strain whereas two other from the Czech and the strains from the Netherlands and Canada created the separate cluster.

Efficient Cryopreservation of In Vitro Grown Shoot Tips of Strawberry (Fragaria × ananassa Duch.) Germplasm Using Droplet-Vitrification

  • Bae, Jinjoo;Lee, Sun-Yi;Song, Jae-Young;Lee, Jung-Ro;Yoon, Munsup;Yi, Jung-Yoon;Kim, Haeng-Hoon;Lee, Young-Yi
    • 한국자원식물학회지
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    • 제34권6호
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    • pp.600-607
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    • 2021
  • Cryopreservation method using a droplet vitrification was applied to the thirty-one strawberry accessions of in vitro grown shoot tips. A protocol with 0.3 - 0.5 M preculture followed by C4 loading and B1 dehydration solutions efficiently implemented cryopreservation of twenty-six strawberry accessions. The highest regrowth rate was 85.8% for PHS0007 and others were ranged between 85.8% and 21.0%. A slightly modified protocol was applied to five accessions. With these two protocols, twenty-eight accessions obtained more than 40% regrowth rate. This study showed that the droplet vitrification method was able to practically implement cryopreservation of in vitro grown shoot tips of broad range of strawberry germplasm (105).

Collection Data with Growth of Three Strawberry Cultivars in High Bed System for Development of the Edge Computing

  • Jo, Jung Su;Sim, Ha Seon;Kim, Sung Kyeom
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송∙미디어공학회 2022년도 하계학술대회
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    • pp.78-80
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    • 2022
  • Strawberry (Fragaria × ananassa) cultivation methods are rapidly changing from traditional soil cultivation to high bed hydroponics, which are easy to agricultural working. The objective was to evaluate the growth characteristics of three strawberry cultivars cultivated high bed system. The "Seolhyang", "Altaking", and "Keumsil" strawberry plants were transplanted in a glass-type greenhouse at Kyungpook National University Gunwi Agricultural Field. The cultivation period was approximately seven months from September 17, 2021 to April 21, 2022. Growth parameters measured including the number of leaves, plant height, petiole length, leaf length, leaf width, and crown diameter at two-week intervals. The environmental parameters for each location in the greenhouse were collected. Plant height in all cultivars continued to decrease from the early stage to the late stage of growth. The crown diameter was increased by 50 DAT, and then gradually decreased until late growth stage in all cultivars. Results indicated that the growth parameters represented to vary according to the cultivar of strawberry plants.

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First Report of Anthracnose Caused by Colletotrichum nymphaeae on Strawberry Fruits in Korea

  • Je Hyeok Yoo;Myung Soo Park;Doo Hee Yi;Myeong Hyeon Nam
    • 한국균학회지
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    • 제52권2호
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    • pp.109-114
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    • 2024
  • Anthracnose fruit rot (AFR) has been observed in greenhouses during the harvesting period in the Chungnam Province of South Korea. Fruits infected inside the greenhouse show black or brown spots, orange conidial masses and in some areas of the infected parts, white fungal growths are visible. The size of these spots gradually expands, leading to the necrosis of the fruits and flowers. Three isolates were obtained from infected fruits and identified as strains of the Colletotrichum acutatum species complex based on morphological characteristics. Multilocus sequence analysis of actin, chitin synthase, glyceraldehyde-3-phosphate dehydrogenase genes, and internal transcribed spacer rDNA regions revealed that the isolates belong to a monophyletic group with the type strain of C. nymphaeae. This is the first time C. nymphaeae has been confirmed in strawberry fruit in Korea.

다른 기주 탄저병균의 딸기에 대한 병원성 (Pathogenesity of Colletotrichum gloeosporioides from Other Hosts on Strawberry)

  • 김승한;윤재탁;이준탁
    • 식물병연구
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    • 제10권2호
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    • pp.130-134
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    • 2004
  • 다른 기주에 발생하는 탄저병(C. gloeosporioides)이 딸기에 전염되는지를 알아보기 위해 사과, 고추, 대추, 감의 이병된 과실에서 탄저병균을 분리동정하고 딸기에서의 병원성을 비교하였다. 각 기주별로 분리된 C. gloeosporioides의 배양적 특성과 포자의 크기는 서로 유사하였으나 말기에 접종을 하였을 경우에는 감에서 분리된 균주가 병원성이 가장 강하였고, 대추에서 분리된 균주는 약한 병원성을 보였다. 각 기주별로 병원성을 나타내는 균주를 선발하여 포장에서 병원성을 검정하였을 때 모두 탄저병이 발병되었으므로 다른 기주에서 발생한 탄저병도 자연상태에서 딸기로 전염이 가능한 것을 확인할 수 있었다.

A Biostimulant Preparation of Brown Seaweed Ascophyllum nodosum Suppresses Powdery Mildew of Strawberry

  • Bajpai, Sruti;Shukla, Pushp Sheel;Asiedu, Samuel;Pruski, Kris;Prithiviraj, Balakrishnan
    • The Plant Pathology Journal
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    • 제35권5호
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    • pp.406-416
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    • 2019
  • Strawberry, an important fruit crop, is susceptible to a large number of pathogens that reduce fruit quality and productivity. In this study, the effect of a biostimulant prepared from Ascophyllum nodosum extract (ANE) (0.1%, 0.2%, and 0.3%) was evaluated on powdery mildew progression under greenhouse and field conditions. In the greenhouse, application of 0.2% ANE showed maximum reduction in powdery mildew progression as compared to the control. Forty-eight hour post-inoculation, foliar spray of 0.2% ANE reduced spore germination by 75%. Strawberry leaves sprayed with ANE showed higher total phenolic and flavonoid content in response to powdery mildew infection. Furthermore, application of ANE elicited defense response in strawberry plants by induction of defense-related enzymes, such as phenylalanine ammonia lyase, polyphenol oxidase, and peroxidase activity. In field conditions, foliar spray of 0.2% ANE showed a reduction of 37.2% of natural incidence of powdery mildew infection as compared to the control. ANE sprayed plant also reduces the severity of powdery mildew infection under natural conditions. These results indicate that application of ANE induces the strawberry plant's active defense against powdery mildew infection by induction of secondary metabolism and regulating the activities of defense-related enzymes.