About This Journal

About This Journal

Horticultural Science and Technology (abbr. Hortic. Sci. Technol., herein ‘HST’; ISSN, 1226-8763), one of the two official journals of the Korean Society for Horticultural Science (KSHS), was launched in 1998 to provide scientific and professional publication on technology and sciences of horticultural area. As an international journal, HST is published in English and Korean, bimonthly on the last day of even number months, and indexed in ‘SCIE’, ‘SCOPUS’ and ‘CABI’. The HST is devoted for the publication of technical and academic papers and review articles on such arears as cultivation physiology, protected horticulture, postharvest technology, genetics and breeding, tissue culture and biotechnology, and other related to vegetables, fruit, ornamental, and herbal plants.

 

2020 Impact Factor 0.869

 

  • Research Article

    Effect of Pollination Technique on Agronomic and Physicochemical Characteristics of Date Palm Fruits (Phoenix dactylifera L.) cv. ‘Deglet Nour’
    Kadri Karim, Aounallah Karim, Hammadi Hamza, Abdelhafidh Manar, Chahine Karmous, and Taoufik Bettaieb
    In Tunisian oases, pollination remains a traditional process and the male’ spikelets are manually inserted into female inflorescences. The drawback of this … + READ MORE
    In Tunisian oases, pollination remains a traditional process and the male’ spikelets are manually inserted into female inflorescences. The drawback of this ancestral practice forced us to look for a new alternative pollination technique for improving date palm productivity. The present investigation aimed to compare agronomic and biochemical characteristics of ‘Deglet Nour’ variety following three pollination techniques: the handmade traditional technique, the dusting (spraying pollen grains by powder) and the water suspension technique. The results affirmed that the dusting technique was the most efficient technique followed by the handmade pollination. Sprinkling showed the highest fruit set rate (82.21%), retention rate (68.34%) and yield per bunch (5.5 kg) with the lowest number of partenocarpic fruits (less than 2%). Besides, data revealed that pollination techniques were not involved in physicochemical and pomological characteristics during the different stages of date maturation. However, other studies can be carried out to explore these different pollination techniques on other varieties growing in different oasis systems. - COLLAPSE
    30 April 2022
  • Research Article

    Effects of the Application Times and Strength of Additional Fertilizers on Onion Bulb Quality Parameters at Harvest and during Storage
    Jinwook Lee, Geon-Hee Park, Myung Hwan Na, Kyungchul Cho, and Haeyoung Na
    Excessive application of basal and additional fertilizers strongly affects the physiological responses of onion bulbs, including yield, quality, and decay during long-term … + READ MORE
    Excessive application of basal and additional fertilizers strongly affects the physiological responses of onion bulbs, including yield, quality, and decay during long-term storage. This study evaluated the effects of additional fertilizer application times and strength on onion bulb number and yield at harvest and bulb quality attributes during storage at ambient temperature and relative humidity. Relative to the recommended levels of additional and conventional fertilization for standard onion cultivation, 0.5-, 1-, 1.5-, and 2-fold application strengths and 1, 2, and 3 application times were tested in individual experiments. Although onion bulb number and fresh weight per bulb size were not affected by the application strength of additional fertilizer, onion bulb yield increased at the application strengths lower or higher than the recommended levels. Bulb fresh weight loss and bulb decay severity were the highest at the 2.0-fold application strength of additional fertilizer. With the increase in the application times of additional fertilizer, bulb yield increased gradually but bulb number and fresh weight per bulb size remained unchanged. Furthermore, bulb weight loss and decay severity were the highest when additional fertilizer was applied thrice. Therefore, heavy and repetitive application of additional fertilizers may reduce the quality of onion bulbs through weight loss and severe decay during storage at ambient temperature, regardless of the high bulb yield at harvest. - COLLAPSE
    30 April 2022
  • Research Article

    Seed Longevity and Germinability of Pulsatilla dahurica (Fisch. ex DC.) Spreng after Storage and Accelerated Aging Test
    Kyungtae Park, Sang Yeob Lee, Boran Ji, Bo-Kook Jang, Hamin Lee, Hayan Lee, Se-Kyu Song, and Ju-Sung Cho
    Determining seed longevity and optimum storage conditions is essential for long-term seed storage. However, the longevity and optimal storage conditions of Pulsatilla … + READ MORE
    Determining seed longevity and optimum storage conditions is essential for long-term seed storage. However, the longevity and optimal storage conditions of Pulsatilla dahurica are unknown. Here, P. dahurica seeds collected in Korea were stored under dry conditions at −20°C, 4°C, and 25°C immediately after collection. After 1, 2, 3, 6, and 12 months, the viability and germinability were measured. After 12 months, the seeds were subjected to saturated salt accelerated aging (SSAA) for additional aging, and the viability and germinability according to the storage temperature were confirmed. P. dahurica seeds did not lose viability or germinability, even after storage for 12 months at all temperatures; rather the germination index increased, resulting in fast and uniform germination. Differences in aging for storage at the three temperatures, which were not observed during actual storage, were identified using SSAA. Seeds stored at 25°C showed the lowest germinability and viability after accelerated aging. Notably, seeds stored at 4°C showed the highest germinability with a slower deterioration rate compared to those stored at −20°C. Collectively, P. dahurica seeds maintained germinability without a reduction in longevity at a wide temperature range during short- term storage (≤1 year), whereas for long-term storage, the optimum storage temperature was 4°C. - COLLAPSE
    30 April 2022
  • Research Article

    Diurnal Variation Characteristics of Sap Flow in Kimchi Cabbage and of Air Temperature and Relative Humidity near the Surface of Cultivated Soil

    배추 수액 흐름 및 배추 재배 토양 근접 위치 온습도의 일변화 특성

    Ki-Deog Kim, Jong-Tack Suh, Chang-Seok Kim, Sam-Nyu Jee, Soon-Choon Hong, Su-Jeong Kim, Jung Hwan Nam, Jong-Nam Lee, and Hwang-Bae Sohn

    김기덕, 서종택, 김창석, 지삼녀, 홍순춘, 김수정, 남정환, 이종남, 손황배

    In this study, sap flow of Kimchi cabbage was affected the most by solar radiation, but it was not completely consistent. In …

    수액 흐름은 일사량의 영향을 가장 크게 받았으나 그 증가가 완전히 비례적이지는 않았다. 이는 기온, 지온, 풍속, 상대 습도 등 다른 기상 환경 …

    + READ MORE
    In this study, sap flow of Kimchi cabbage was affected the most by solar radiation, but it was not completely consistent. In addition, it was judged to be somewhat affected by other weather environmental factors such as temperature, soil temperature, wind speed, relative humidity, and vapor pressure deficit. Sap flow of Kimchi cabbage was affected by changes in soil temperature in the root stalk and solar radiation in the leaves. The effect of soil moisture on sap flow was not sensitive in the range of available soil moisture conditions, while it showed different patterns according to the measurement location, leaf aging, and extreme weather conditions. The ratio of evapotranspiration calculated from sap flow and from the positive relationship between them was presented as an irrigation signal. When the soil moisture was sufficient, the temperature and humidity measured at the top 1 cm of the ground surface adjacent to the cabbage followed the general pattern of temperature and humidity change in the air, and the opposite result was obtained when the soil moisture was insufficient. Therefore, it was determined that the abnormal change signal of the temperature and humidity near the surface of the Kimchi cabbage cultivated soil can be used as an indicator for determining the soil moisture state.


    수액 흐름은 일사량의 영향을 가장 크게 받았으나 그 증가가 완전히 비례적이지는 않았다. 이는 기온, 지온, 풍속, 상대 습도 등 다른 기상 환경 요인이 수액 흐름에 영향을 미치기 때문이다. 배추의 수액 흐름은 근경에서는 지온의 변화와 유사하였으며, 잎에서는 일사량의 변화와 유사하였다. 특히 수액 흐름에 미치는 토양 수분의 영향은 유효 수분 조건 범위에서는 수액 흐름의 민감하지는 않았으나 토양 수분 변화에 따라 수액 흐름이 반응을 하였다. 잎의 노화, 측정위치, 극한 기상 상태에 따라 수액 흐름이 달랐다. 수액 흐름과 증발산량은 정의 상관을 보였으며, 이들의 관계로부터 산출된 수액 흐름을 이용한 증발산량과 기상에 기반을 둔 증발산량의 비가 1.25일 때 관수 시점임을 확인하였다. 아울러 토양 수분이 충분할 때에 배추 인접 지표면의 상단 1cm 높이에서 측정한 온습도는 습공기의 일반적인 온습도 변화 양상을 따랐고, 토양수분이 부족한 경우에는 반대의 결과를 나타냈다. 따라서 배추 재배 토양의 표면 근접 온습도의 이상 변화는 토양 수분 상태를 판단하는 지표로 이용할 수 있을 것으로 판단된다.

    - COLLAPSE
    30 April 2022
  • Research Article

    Growth and Productivity of Radish (Raphanus sativus var. hortensis) under Different Day/Night Temperatures

    주야간 재배 온도별 무(Raphanus sativus var. hortensis)의 생육 특성 및 생산성

    Seo Young Oh, Kyung Hwan Moon, Minji Shin, Seong Eun Lee, and Seok Chan Koh

    오서영, 문경환, 신민지, 이성은, 고석찬

    In this study, we investigated the photosystem II photochemical efficiency (variable to maximum fluorescence ratio, Fv/Fm), vegetative growth, …

    본 연구에서는 주야간 온도를 달리한 조건(14/8°C, 19/13°C, 24/18°C, 29/23°C, 34/28°C)에서 무(R. sativus var. hortensis)를 재배하였을 때, 광계II 활성, 영양생장 및 …

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    In this study, we investigated the photosystem II photochemical efficiency (variable to maximum fluorescence ratio, Fv/Fm), vegetative growth, and productivity of radish (Raphanus sativus var. hortensis) grown under different day/night temperatures (14/8°C, 19/13°C, 24/18°C, 29/23°C, and 34/28°C). Radish seed germination rates corresponding to Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie (BBCH) stage 09 occurred readily at temperatures higher than 24/18°C, whereas hypocotyls elongated rapidly to cause abnormal root curving above 29/23°C. Shoots and roots grew well at 30 days after sowing (DAS). Leaves developed rapidly at temperatures above 24/18°C, reaching BBCH stage 19 at 30 DAS, during which leaf number and area increased, whereas roots showed better development at temperatures below 24/18°C, taking ~70 days for 70% of roots to attain BBCH stage 47 at 24/18°C. Root growth rates were highest at 24/18°C, with root diameters reaching ≥ 10 cm within 80 DAS at 24/18°C. At 85 DAS, high-quality roots, i.e., thick and long with no internal browning, were produced at 24/18°C. Fv/Fm was high at temperatures below 24/18°C, and absorption flux per cross-section (ABS/CSm), trapped energy flux per cross section (TRo/CSm), and electron transport per cross section (ETo/CSm) were high at 19/13°C and 24/18°C. These findings indicate that radish plants grew well and without temperature stress at 19/13°C and 24/18°C. However, the optimal day/night temperature for producing high-quality radish roots of marketable size and weight is 24/18°C.


    본 연구에서는 주야간 온도를 달리한 조건(14/8°C, 19/13°C, 24/18°C, 29/23°C, 34/28°C)에서 무(R. sativus var. hortensis)를 재배하였을 때, 광계II 활성, 영양생장 및 생산성에 미치는 영향을 다각적으로 살펴보았다. 무 종자의 발아는 BBCH 09 단계를 기준으로 하였을 때 24/18°C 이상의 온도에서 발아가 잘 이루어졌다. 그러나, 29/23°C 이상의 온도에서는 하배축 신장이 빨라 뿌리가 비정상적으로 만곡되는 양상을 보였다. 파종 30일 이후 지상부와 지하부의 생장은 24/18°C에서 가장 길고 무거웠으며, 24/18°C 이상의 온도에서는 잎의 발달이 파종 후 30일에 BBCH 19 단계에 이르러 엽수도 많고 엽면적도 넓어지는 등 지상부의 생장 속도가 빨랐다. 반면에 뿌리는 24/18°C 이하의 온도에서 더 길고 굵었으며, 24/18°C에서 BBCH 47 단계인 뿌리가 70% 정도 비대한 상태로 발달하는데 필요한 기간이 70일 이내로 나타났다. 지하부의 직경은 24/18°C에서 파종 후 80일 이내에 10cm 이상으로 굵었고 내부 갈변도 발생하지 않아서, 가장 무거우면서 굵고 길게 뻗은 품질이 양호한 무를 생산할 수 있었다. 또한 광계II의 최대 광화학적 효율(Fv/Fm)도 24/18°C 이하의 온도에서 높았으며, 엽면적당 흡수되는 빛에너지(ABS/CSm)와 광계II의 반응중심에 포획되는 에너지(TRo/CSm), 전자전달로 전해지는 에너지(ETo/CSm)가 모두 높아져 무가 온도 스트레스 없이 잘 자랄 수 있는 조건임을 알 수 있다. 그러나, 무의 외형적인 상품성과 크기나 무게 등 생산성을 감안하였을 때 무의 재배는 24/18°C에서 수행하는 것이 적절한 것으로 보인다.

    - COLLAPSE
    30 April 2022
  • Research Article

    Comparison of Turfgrass Density, Root Growth, Thatch Accumulation, and Infiltration Rate in Warm-season Korean Lawngrass (Zoysia japonica Steud.) and Major Cool-season Grasses in the Anysoil System

    일반 기존토 지반에서 난지형 한국잔디와 주요 한지형 잔디의 잔디밀도, 뿌리생장, 대취축적 및 투수속도 비교

    Kyoung-Nam Kim

    김경남

    This study was conducted to evaluate the growth characteristics and infiltration rate in warm-season (WSG) and cool-season grasses (CSGs) in the anysoil …

    본 연구는 일반 양토의 기존토 지반에서 난지형 및 한지형 잔디의 생육특성 및 투수속도 변화를 연중 계절별로 파악하고자 시작하였다. 공시 초종 처리구는 켄터키 …

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    This study was conducted to evaluate the growth characteristics and infiltration rate in warm-season (WSG) and cool-season grasses (CSGs) in the anysoil system. Treatments employed Kentucky bluegrass (KB, Poa pratensis L.), perennial ryegrass (PR, Lolium perenne L.), tall fescue (TF, Festuca arundinacea Shreb.), and Korean lawngrass (KL, Zoysia japonica Steud.) and were replicated four times in RCBD. Significant differences were observed in turfgrass in different seasons for these growth characteristics. Turfgrass density was better in the CSGs than in KL, being KB > PR > TF > KL in order. In our study, the ranking for root growth was KB > PR > TF > KL, while that for rooting system was PR > KB > TF > KL. Thatch accumulation was inconsistent between WSG and CSGs, but its ranking was TF > PR > KB among the CSGs. Evaluation of the water infiltration rate showed the similar results as for root growth, being KB > PR > TF > KL. A higher infiltration rate was observed in CSGs than WSG, being 1.36 to 2.34 times greater than that of KL. Growth habit and root growth pattern vary with turfgrass. Drainage capacity more easily deteriorates with a B-type TF and PR over a R-type KB. Therefore, growing characteristics and drainage capacity should be effectively managed. It was concluded that water infiltration capacity in loamy soil was highly associated with root growth and thatch accumulation. Information on turfgrass density, root growth, rooting development, and thatch accumulation in relation to infiltration rate is useful in the establishment and management of low-maintenance turf areas.


    본 연구는 일반 양토의 기존토 지반에서 난지형 및 한지형 잔디의 생육특성 및 투수속도 변화를 연중 계절별로 파악하고자 시작하였다. 공시 초종 처리구는 켄터키 블루그래스, 퍼레니얼 라이그래스, 톨 페스큐 및 들잔디 4종류 이었으며, 시험구는 난괴법 4반복으로 배치하였다. 2010년 5월부터 10월까지 잔디밀도, 뿌리생장, 대취축적 및 투수속도를 조사한 결과 이들 생육특성은 난지형 및 한지형 초종 및 계절에 따라 통계적으로 유의한 차이가 나타났다. 잔디밀도는 한지형 잔디가 난지형 들잔디보다 우수하였고, 한지형 초종 간 우열관계는 켄터키 블루그래스 > 퍼레니얼 라이그래스 > 톨 페스큐 순서로 나타났다. 뿌리생장 및 근계발달은 모두 한지형 초종이 난지형 들잔디보다 우수하였다. 뿌리길이 생장은 켄터키 블루그래스 > 퍼레니얼 라이그래스 > 톨 페스큐, 그리고 근계발달은 퍼레니얼 라이그래스 > 켄터키 블루그래스 > 톨 페스큐 순서로 나타났다. 대취축적은 난지형 및 한지형 초종간 우열관계는 일정치 않았지만, 일반적으로 한지형 잔디는 톨 페스큐 > 퍼레니얼 라이그래스 > 켄터키 블루그래스 경향으로 나타났다. 투수속도는 뿌리생장 결과와 비슷한 경향으로 나타나서, 한지형 잔디가 난지형 들잔디보다 우수하였고, 초종 간 우열관계는 켄터키 블루그래스 > 퍼레니얼 라이그래스 > 톨 페스큐 > 들잔디 순서로 나타났다. 즉 일반 양토에서 연평균 한지형 잔디의 투수속도는 난지형 들잔디의 투수속도에 비해 켄터키 블루그래스는 2.34배, 퍼레니얼 라이그래스는 2.03배, 그리고 톨 페스큐는 1.36배 더 빠른 것으로 나타났다. 잔디생육 특성 중 생육형, 뿌리생장 및 대취축적은 일반 양토의 투수기능에 영향을 주는 것으로 판단되었다. 본 실험을 통해 잔디밭 관리 시 초종에 따라 생육형 및 뿌리생장 패턴이 다르고, 동일한 환경 및 관리 조건에서 직근성 B-type 잔디 초종의 투수성능이 더 빨리 저하될 수 있음으로 생육특성 및 배수기능을 연계해서 효율적인 잔디관리를 하는 것이 필요하다.

    - COLLAPSE
    30 April 2022
  • Research Article

    Bi-dimensional Image Analysis for the Phenotypic Evaluation of Russet in Asian Pear (Pyrus spp.)
    Yumi Kim, Sewon Oh, Keumsun Kim, Hae Won Jeong, and Daeil Kim
    Russet, one of the fruit skin colors of Asian pears, affects the fruit’s commercial value. A precise phenotyping method is required because … + READ MORE
    Russet, one of the fruit skin colors of Asian pears, affects the fruit’s commercial value. A precise phenotyping method is required because fruit skin colors occur irregularly in various pear cultivars. Here, we propose a bi-dimensional image analysis to evaluate the russet of pear skin accurately and effectively by comparing the results of image analysis with the Hunter a value. The fruits of ‘Whangkeumbae’ (non-russet), ‘Minibae’ (russet), and their F1 individuals were used for russet evaluation. The Hunter a value was measured using a color-difference meter. The russet coverage (%) was calculated using Photoshop software. In F1 individuals derived from ‘Whangkeumbae’ × ‘Minibae’, the Hunter a value represented normal distribution, and the russet coverage distributed variously. The positive correlation coefficients between the Hunter a value and russet coverage was confirmed (r > 0.7). Although several F1 individuals showed abundant russet formation, they showed a negative Hunter a value. Therefore, the bi-dimensional image analysis more accurately evaluated russet in pear fruit skin than did the Hunter a value. The bi-dimensional image analysis could be used for high-throughput phenotyping in pears. - COLLAPSE
    30 April 2022
  • Research Article

    Fruit Quality in ‘Hongro’ Apple Affected by Porous Film Mulching and K2SO4 Foliar Spray

    다공질필름 멀칭과 황산칼륨 엽면살포에 의한 ‘홍로’ 사과의 과실품질

    Young Ji Moon, In Kyu Kang, and Byung Woo Moon

    문영지, 강인규, 문병우

    We investigated the effects of coloring agent and potassium sulfate (K2SO4) foliar sprays, and reflective aluminium and porous …

    사과 홍로 품종을 대상으로 적색 착색 촉진을 위하여 수확 전 착색제(ACT-2), 황산칼륨(K2SO4) 엽면살포 및 미세다공질필름 멀칭효과를 조사하였다. 수확 …

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    We investigated the effects of coloring agent and potassium sulfate (K2SO4) foliar sprays, and reflective aluminium and porous film covering on the orchard floor on the enhancement of red peel coloration in ‘Hongro’ apples. Foliar spray of coloring agent and potassium sulfate, and reflective aluminium film mulching before harvest increased the Hunter a value and anthocyanin content of fruit peels at harvest. In addition, micro-porous film mulching had the best effect on promoting red peel coloration in the fruits in the lower and inner canopy, non-colored fruit parts, and fruit calyx-end part due to improved light irradience. Although no statistical differences were detected in fruit weight, firmness, and acidity at harvest, the soluble solids content (SSC) of fruits was increased by coloring agent foliar spray. Reflective aluminium film mulching had the highest incidence of fruit sunscald at harvest. However, porous film mulching did not affect the sunscald occurrence of control fruit. Therefore, the result indicated that porous film mulching at 20 or 30 d before harvest is the most effective for promoting red peel coloration.


    사과 홍로 품종을 대상으로 적색 착색 촉진을 위하여 수확 전 착색제(ACT-2), 황산칼륨(K2SO4) 엽면살포 및 미세다공질필름 멀칭효과를 조사하였다. 수확 전 20–30일에 착색제 및 황산칼륨 엽면살포, 알루미늄반사필름 멀칭 또는 황산칼륨 엽면살포 후 미세다공질필름 멀칭은 과피의 Hunter a값 및 anthocyanin함량을 증가시켰다. 또한 미세다공질필름 멀칭은 광 환경 개선으로 수관하부 과실, 과정부 및 비착색부에서 적색 착색을 촉진하는 효과가 있었다. 수확 시 과중, 경도, 산함량은 처리에 따른 일관된 차이가 없었으나, 가용성고형물은 착색제 수체살포에 의해 증가 하였다. 수확시 일소과 발생은 알루미늄반사필름 멀칭이 다른처리에 비하여 현저하게 증가시켰으나, 미세다공질필름 멀칭은 대조구에 비해 차이가 없었다. 따라서, ‘홍로’ 사과에서 수확 20, 30일 전 미세다공질필름 수관하부 멀칭은 수확 과실의 우수한 적색 착색의 효과를 나타내어 활용가치가 있었다.

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    30 April 2022
  • Research Article

    Evaluation of Plant-induced Electrical Signal and Growth of Broccoli (Brassica oleracea var. italica) in Response to Urea Application in Soil

    토양 요소 공급에 따른 브로콜리(Brassica oleracea var. italica)의 생육 및 식물 유도 전기적 신호 평가

    Han Na Kim, Pyoung Ho Yi, and Jin Hee Park

    김한나, 이평호, 박진희

    The plant-induced electrical signal (PIES), which reflects nutrient and water uptake by the plant, can be monitored by inserting electrodes on both …

    식물 유도 전기적 신호(PIES)는 식물 줄기의 양쪽에 전극을 삽입하여 모니터링하며 식물의 양수분 흡수를 반영한다. 본 연구의 목적은 요소 시비에 따른 식물 생육 …

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    The plant-induced electrical signal (PIES), which reflects nutrient and water uptake by the plant, can be monitored by inserting electrodes on both sides of the plant stem. The objective of this study was to evaluate whether PIES measurement can be applied to evaluate plant growth in response to urea fertilization. Soil was treated with different amounts of urea and the PIES of broccoli grown in the soil was monitored. PIES showed significantly positive correlation with nitrate in stems, indicating that PIES represents increased water and ion transport in broccoli stem caused by increasing urea application. Broccoli leaves treated with high amounts of fertilizer showed the highest chlorophyll content, but there was no significant difference among treatments. The proline content was highest with standard urea application; however, it was in the range of normal condition. There was no significant difference in the growth parameters of broccoli among different treatments, but the PIES was slightly higher when standard amount of urea was applied compared to the other treatments. The PIES values were different among individual broccoli plants and were highly correlated with nitrate in broccoli stem. Thus, PIES could be used as an indicator to evaluate plant nitrogen uptake.


    식물 유도 전기적 신호(PIES)는 식물 줄기의 양쪽에 전극을 삽입하여 모니터링하며 식물의 양수분 흡수를 반영한다. 본 연구의 목적은 요소 시비에 따른 식물 생육 반응을 평가하는데 PIES를 적용할 수 있을지 평가하는 것이다. 이를 위해 토양에 요소를 처리하고 브로콜리의 PIES를 모니터링하였다. PIES는 줄기의 질산태 질소와 유의한 양의 상관관계를 보여 PIES가 요소비료 처리 증가로 인한 브로콜리 줄기의 양수분 이동을 반영한 것으로 판단된다. 비료 과잉 처리구에서 브로콜리 잎의 엽록소 함량이 가장 높았으나 처리구간 유의한 차이는 없었다. 프롤린 함량은 표준 상태로 요소를 처리했을 때 가장 높았으나 정상 범위에 속하는 것으로 판단된다. 브로콜리의 생육은 처리구에 따라 유의한 차이가 없었지만 표준량의 요소를 처리했을 때 PIES가 다른 처리구보다 약간 높았다. PIES의 값은 브로콜리 개체별로 달랐는데 이는 브로콜리 줄기의 질산태 질소 함량과 높은 상관관계를 보여 식물의 질소 흡수를 평가하는 지표로 PIES를 사용할 수 있을 것이다.

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    30 April 2022
  • Research Article

    Evaluation of Growth Parameters, Physiological Responses, and Yield during Forcing Cultivation of Cucumbers in On-farm Trials
    Ji-Eun Lee, Myung Hwan Na, and Sung Kyeom Kim
    Optimizing controlled farming of high-value crops such as cucumber (Cucumis sativa) requires extensive data comparing yields and growth conditions. In … + READ MORE
    Optimizing controlled farming of high-value crops such as cucumber (Cucumis sativa) requires extensive data comparing yields and growth conditions. In this study, we collected data from representative cucumber farms with innovative farm facilities including automatic ventilation, semi- hydroponic systems with soil culture, heat, and cooling systems. The growth parameters, physiological responses, cucumber yield, and environmental data were acquired from on-farm trials in three different locations. The total yield was highest at farm A (7.44 kg plant-1), followed by B (5.46 kg plant-1), and C (5.09 kg plant-1). Farm A had a 42–51% higher harvest than other farm sites compared with winter harvests, thus significantly affecting overall income. The maximum chlorophyll fluorescence value at farm A was higher than at the other farms during the cultivation period. Those results indicated that the environmental factors at farm A were more optimal, resulting in improved growth, and the productivity of cucumber was not affected by environmental stresses during cultivation. Those data will be applied for optimal control of environmental factors, including air temperature, light conditions, CO2 concentration, and nutrient and water contents of substrates. - COLLAPSE
    30 April 2022
  • Research Article

    Development of a CAPS Marker for Discriminating Sex in Actinidia arguta
    Jung Kim, Sewon Oh, Yumi Kim, Mockhee Lee, Yong-Bum Kwack, and Daeil Kim
    Actinidia arguta is a Korean native kiwifruit with valuable traits for kiwifruit breeding, such as cold hardiness, disease tolerance, and high nutritional … + READ MORE
    Actinidia arguta is a Korean native kiwifruit with valuable traits for kiwifruit breeding, such as cold hardiness, disease tolerance, and high nutritional value. Early sex discrimination is a priority in kiwifruit breeding programs because Actinidia species are dioecious vines. A cleaved amplified polymorphic sequence (CAPS) marker discriminating sex was developed using genotyping-by- sequencing (GBS)-derived single nucleotide polymorphisms (SNPs). Previously obtained GBS reads were re-aligned to the kiwifruit reference genome organized at the pseudo-chromosomal level. These GBS-SNPs could divide A. arguta accessions according to sex. Candidate CAPS markers were designed using these SNPs located on sex chromosomes. Among them, only the CAPS marker designed using the SNP located at 10,236,410 bp on sex chromosome was able to discriminate the sex of A. arguta accessions. This might be because the SNP located at 10,236,410 bp had higher read depth than other candidate SNPs. This CAPS marker, named CBk25ca01, produced DNA fragments of 300 and 147/153 bp in female and male A. arguta accessions, respectively. The CBk25ca01 marker will be useful to improve kiwifruit breeding programs by reducing the time needed to discriminate sex. - COLLAPSE
    30 April 2022
  • Research Article

    Effect of Hydropriming and Light Quality Treatments on Sprout Growth and Antioxidant Activity in Brassica oleracea var. capitate Seeds
    Hamin Lee, Boran Ji, Bo-Kook Jang, Kyungtae Park, Sang Yeob Lee, Kyunggu An, and Ju-Sung Cho
    In this study, we assessed the effect of hydropriming and light quality treatments on the antioxidant activity and bioactive compounds in Brassica … + READ MORE
    In this study, we assessed the effect of hydropriming and light quality treatments on the antioxidant activity and bioactive compounds in Brassica oleracea var. capitate sprouts. B. oleracea seeds were soaked in distilled water and treated with different light wavelengths or in complete darkness for 24 h at 20 ± 1°C. Subsequently, the treated seeds were dried for 24 h, sown on sprouting trays, and then incubated for seven days at 25 ± 2°C under a 16/8 h light/dark photoperiod with white LEDs. The final percent germination of B. oleracea sprouts was 82.3–95.7%. The fresh weight and shoot length increased significantly in all hydropriming and light quality treatments when compared to the control (soaked in water for 24 h in darkness with no drying). We tested different solvents for extracting bioactive compounds and determined their radical scavenging activity and found that 80% ethanol was the best solvent. Hydro-primed sprouts exhibited significant differences in bioactive compounds and antioxidant activity between the different light treatments. In particular, the blue light treatment resulted in a total flavonoid content and DPPH radical scavenging activity (RC50) of 157.2 mg naringin equivalent (NE)·g-1 and 1.27 mg·mL-1, respectively, and was the most effective treatment for increasing bioactive compounds and antioxidant activity. Therefore, the combined germination pretreatments of hydropriming and light quality induced significant changes in bioactive compounds and antioxidant activity of B. oleracea sprouts. - COLLAPSE
    30 April 2022