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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Horticultural Science and Technology
Journal Basic Information
Journal DOI :
Korean Society of Horticultural Science
Editor in Chief :
Volume & Issues
Volume 29, Issue 6 - Dec 2011
Volume 29, Issue 5 - Oct 2011
Volume 29, Issue 4 - Aug 2011
Volume 29, Issue 3 - Jun 2011
Volume 29, Issue 2 - Apr 2011
Volume 29, Issue 1 - Feb 2011
Selecting the target year
Trends and Interpretation of Life Cycle Assessment (LCA) for Carbon Footprinting of Fruit Products: Focused on Kiwifruits in Gyeongnam Region
Deurer, Markus ; Clothier, Brent ; Huh, Keun-Young ; Jun, Gee-Ill ; Kim, In-Hea ; Kim, Dae-Il ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 389~406
As part of a feasibility study for introducing carbon labeling of fruit products in Korea, we explore the use of carbon footprints for Korean kiwifruit from Gyeongnam region as a case study. In Korea, the Korean Environmental Industry and Technology Institute (KEITI) is responsible for the carbon footprint labeling certification, and has two types of certification programs: one program focuses on climate change response (carbon footprint labeling analysis) and the other on low-carbon products (reduction of carbon footprints analysis). Currently agricultural products have not yet been included in the program. Carbon labeling could soon be a prerequisite for the international trading of agricultural products. In general the carbon footprints of various agricultural products from New Zealand followed the methodology described in the ISO standards and conformed to the PAS 2050. The carbon footprint assessment focuses on a supply chain, and considers the foreground and the background systems. The basic scheme consists of four phases, which are the 'goal', 'scope', 'inventory analysis', and 'interpretation' phases. In the case of the carbon footprint of New Zealand kiwifruit the study tried to understand each phase's contribution to total GHG emissions. According to the results, shipping, orchard, and coolstore operation are the main life cycle stages that contribute to the carbon footprint of the kiwifruit supply chain stretching from the orchard in New Zealand to the consumer in the UK. The carbon emission of long-distance transportation such as shipping can be a hot-spot of GHG emissions, but can be balanced out by minimizing the carbon footprint of other life cycle phases. For this reason it is important that orchard and coolstore operations reduce the GHG-intensive inputs such as fuel or electricity to minimize GHG emissions and consequently facilitate the industry to compete in international markets. The carbon footprint labeling guided by international standards should be introduced for fruit products in Korea as soon as possible. The already established LCA methodology of NZ kiwifruit can be applied for fruit products as a case study.
Bud Necrosis Characteristics of 'Hongisul' Grape
Kim, Eun-Joo ; Lee, Byul-Ha-Na ; Kwon, Yong-Hee ; Shin, Kyoung-Hee ; Chung, Kyu-Hwan ; Park, Seo-Jun ; Park, Hee-Seung ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 407~412
The germination of the buds in 'Hongisul' grapes is poor and especially the high ratio of shoots where the flowers failed to emerge it was difficult to secure a sufficient amount of harvest. Thus, in this study, the necrosis and the periodical change in the buds were observed morphologically and also the cause of necrosis of the bud was investigated in order to understand what was causing the low germination and flowering. There was no change in the size of the bud after June and based upon external observation, there wasn't any retrogression or withering. However, based on a microscopic examination, the ratio of whole bud and main bud necrosis of the 'Hongisul' grapes continued to increase after August, and specially the ratio of the main bud necrosis continued to increase up to October. As for the size of the buds on the shoots, the buds located on the
nodes from the basal part were small whereas the buds located on the
nodes were comparatively larger in its size. The ratio of necrosis of the bud was the highest at the
bud, meaning that the buds located at the basal part of the shoot were defective compared to those located at the end of the shoot. It was also found that when the growth of the shoot is active and the shoot diameter is thick, it hindered the development of the buds. Therefore, it was judged that long pruning of 'Hongisul' grapes would help the emergence of the flowers as you could use the buds that have comparatively developed better.
Cadmium Accumulation and Tolerance of Iris pseudacorus and Acorus calamus as Aquatic Plants Native to Korea
Lee, Sung-Chun ; Kim, Wan-Soon ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 413~419
This study was conducted to find out the cadmium (Cd) accumulation and tolerance of Iris pseudacorus and Acorus calamus as aquatic plants native to Korea for Cd removal in water. In the range of Cd concentration from
, the Cd lethal dose 50 (
in I. pseudacorus and
in A. calamus. In I. pseudacorus, superoxide dismutase and peroxidase as antioxidants were relatively effective against oxidative stress caused by Cd, while catalase, superoxide dismutase, and polyphenolics were effective in A. calamus. The polyphenolics known as typical antioxidants were not detected in I. pseudacorus. In both species, the Cd accumulation in plants increased with the higher Cd concentration and the longer processing period. Also, the absorbed Cd was accumulated mainly in the roots. The amount of Cd accumulated in the shoot part was maximally
(82.1% to Cd accumulated in the root part) in I. pseudacorus and
(13.7%) in A. calamus, which implied that both species all were enough evaluated as Cd hyper-accumulators based on 0.01% or more Cd accumulation in the shoot. Especially I. pseudacorus showed outstanding ability to move well Cd into the shoots from the roots and high tolerance to Cd stress.
Evaluation and Comparison of Effects of Air and Tomato Leaf Temperatures on the Population Dynamics of Greenhouse Whitefly (Trialeurodes vaporariorum) in Cherry Tomato Grown in Greenhouses
Park, Jung-Joon ; Park, Kuen-Woo ; Shin, Key-Il ; Cho, Ki-Jong ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 420~432
Population dynamics of greenhouse whitefly, Trialeurodes vaporariorum (Westwood), were modeled and simulated to compare the temperature effects of air and tomato leaf inside greenhouse using DYMEX model simulator (pre-programed module based simulation program developed by CSIRO, Australia). The DYMEX model simulator consisted of temperature dependent development and oviposition modules. The normalized cumulative frequency distributions of the developmental period for immature and oviposition frequency rate and survival rate for adult of greenhouse whitefly were fitted to two-parameter Weibull function. Leaf temperature on reversed side of cherry tomato leafs (Lycopersicon esculentum cv. Koko) was monitored according to three tomato plant positions (top, > 1.6 m above the ground level; middle, 0.9 - 1.2 m; bottom, 0.3 - 0.5 m) using an infrared temperature gun. Air temperature was monitored at same three positions using a Hobo self-contained temperature logger. The leaf temperatures from three plant positions were described as a function of the air temperatures with 3-parameter exponential and sigmoidal models. Data sets of observed air temperature and predicted leaf temperatures were prepared, and incorporated into the DYMEX simulator to compare the effects of air and leaf temperature on population dynamics of greenhouse whitefly. The number of greenhouse whitefly immatures was counted by visual inspection in three tomato plant positions to verify the performance of DYMEX simulation in cherry tomato greenhouse where air and leaf temperatures were monitored. The egg stage of greenhouse whitefly was not counted due to its small size. A significant positive correlation between the observed and the predicted numbers of immature and adults were found when the leaf temperatures were incorporated into DYMEX simulation, but no significant correlation was observed with the air temperatures. This study demonstrated that the population dynamics of greenhouse whitefly was affected greatly by the leaf temperatures, rather than air temperatures, and thus the leaf surface temperature should be considered for management of greenhouse whitefly in cherry tomato grown in greenhouses.
Effect of NaCl Stress on the Growth, Antioxidant Materials, and Inorganic Ion Content in Head Lettuce Seedlings
Kim, Ju-Sung ; Hyun, Tae-Kyung ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 433~440
In head lettuce seedlings, NaCl stress was treated with hydroponic culture containing 0, 50, or with 100 mM NaCl in the seedling grown up to two leaf stages. Our focus was on the effect of NaCl on fresh and dry weights, antioxidant materials, and inorganic ion level. Fresh and dry weights of head lettuce seedlings increased with the increase in salinity while the optimal growth occured at 50 mM NaCl. The chlorophyll a (Chl a), total Chl and Chl a/b ratio increased 6 days after treatment with 100 mM NaCI. However, the Chl b content decreased. Total glutathione increased only in the root of head lettuce seedlings, whereas significant increase of total arcorbate content was observed in both shoot and root after the treatment with 100 mM NaCl. In addition, the NaCl treatment resulted in the decreased level of spermidine content, and a increased spermine content. Furthermore,
content in shoot and root increased significantly while
content decreased. The alteration of inorganic ion level after treatment with NaCl caused the reduction of
ratio with the increase of NaCl concentration. Taken together, these findings indicate that the treatment of NaCl causes the induction of oxidative stress, and results in the alteration of metabolic mechanism in head lettuce seedlings.
Enhancement of Skin Color by Postharvest UV Irradiation in 'Fuyu' Persimmon Fruits
Choi, Seong-Jin ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 441~446
The effects of UV irradiation, as a hormetic stimulus, on the postharvest persimmon fruits (Diospyros kaki cv. Fuyu) were investigated in regards to the change of carotenoid contents and flesh softening, when the UV irradiation was combined with or without the pretreatment of 1-methylcyclopropene (1-MCP) as an ethylene action inhibitor. The major carotenoid pigments in persimmon fruits were
-carotene, lycopene and
-cryptoxanthin. Of them, the lycopene was a pigment, which increased markedly after harvest. UV irradiation increased the contents of
-carotene and lycopene, enhancing the skin color to scarlet. The treatment accelerated however also the softening of fruit flesh. But the softening of UV irradiated fruits could be delayed significantly by pretreatment with 1-MCP without reducing the advantageous effect of UV irradiation on the carotenoid increase.
Effect of Antimicrobial Microperforated Film Packaging on Extending Shelf Life of Cluster-type Tomato (Lycopersicon esculentum Mill.)
Lee, Youn-Suk ; Lee, Young-Eun ; Lee, Jung-Soo ; Kim, Young-Shik ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 447~455
To investigate the effects of the improvement of postharvest quality on fresh tomato, antimicrobial microperforated (AMP) films were prepared and their antimicrobial abilities were observed. AMP films were made by coating different types of natural antimicrobial agents such as cinnamon, clove, and clary sage essential oils into microperforated (MP) films. Cinnamon essential oil of 10% (v/v) has proven to be very effective as inhibitor of the mold growth on tomato, compared to the clove and clary sage essential oils. Quality changes of fresh tomatoes packed using the natural AMP films (AMP10 and AMP30) and MP films (MP10 and MP30) during storage were evaluated. Total microbial growth, weight loss, firmness, lycopene content, and decay rate as the major quality parameters were monitored over 9 days at
. The oxygen transmission rates and mechanical properties between the natural AMP and MP films were also compared. There was no significant difference in change of oxygen transmission rate, tensile strength and elongation between the AMP and MP films. For storage studies, the freshness of tomato packaged in AMP30 film was higher than that in OPP film (the control), MP10, MP30, and AMP10 films. Especially, AMP30 film exhibited high efficiency compared to the control for tomato decay during storage periods. Based on the results, the microperforation and antimicrobial properties of the packaged films may significantly affect the maintenance of an optimum gas composition within the package atmosphere for increasing the storage life and quality of produce. They were also effective on the inhibition of microbial growth by controlled release of antimicrobial agent at an appropriate rate from the package into the tomato. Natural antimicrobial agent coating microperforated films could use potential functional package as a method of extending the freshness of postharvest tomato for storage.
Characteristics Comparison of Mutants Induced through Gamma Irradiation in 'Kardinal' Rose
Koh, Gab-Cheon ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 456~460
This study was carried out to compare the pattern of mutant variation and to evaluate the characteristics of mutants obtained by gamma irradiation in rose 'Kardinal'. Forty four rooted cuttings of 'Kardinal' were irradiated at 70 Gy gamma-ray dose from a
source to induce mutants in 2002. The irradiated plants were planted in field, and observed spotting of petal color mutants from 2002 to 2004. Four different kinds of mutant twigs with each different color flower were obtained from the irradiated 'Kardinal' with red petal. After being identified to be a stable mutant from 2004 to 2008, each mutant line propagated by cutting was hydroponic-cultured to evaluate the characteristics in the greenhouse from 2008 to 2009. Four mutant lines obtained from 'Kardinal' with red petal (Red group, 44A, 45B) include KA1 with light pink petal (Red group, 55B-55D), KA2 with pink petal (Red group, 63A-63B), KA3 with deep pink (Red purple, N57A-N57C), and KA4 with orange red (Red group, 43A-43B). Diameters of each flower in four mutant lines were different from 'Kardinal'. The line KA1 was 9.5 cm wide, and it showed the smallest diameter when compared to other mutants. While the line KA2 was the largest one with 12.5 cm 'Kardinal'. Petal number per flower was also variable among the mutants. The line KA2 had 39.8 petals being the largest number among the mutants, while the line KA1 was the lowest one compared to 35.5 petals of 'Kardinal'. Petal color was measured by using colorimeter. Brightness (L) measured at each petal of four mutants increased more than 'Kardinal'. CIE Lab values, a and b decreased more than 'Kardinal' at the petal color of three mutants except the line KA4. Characteristics of shoot, leaf, etc. from four mutants were also different from the ones of 'Kardinal'. The line KA1 was shortest in shoot, node and peduncle length, and lowest in prickle number. The reverse side of leaves was reddish green color in 'Kardinal' as well as the line KA4, but green color in the line KA1, KA2, and KA3.
Pickprimer: A Graphic User Interface Program for Primer Design on the Gene Target Region
Chung, Hee ; Mun, Jeong-Hwan ; Lee, Seung-Chan ; Yu, Hee-Ju ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 461~466
In genetic and molecular breeding studies of plants, researchers need to design various kinds of primers based on their research purposes. So far many kinds of web- or script-based non-commercial programs for primer design are available. Because most of them do not include user interface for multipurpose usage including gene structure prediction and direct target selection on sequences, it has been a laborious work to design primers targeting on the exon or intron regions of interesting genes. Here we report a primer designing graphic user interface program, Pickprimer, that includes gene structure prediction and primer design modules by combining source codes of the Spidey and Primer3 programs. This program provides simple graphic user interface to input sequences and design primers. Genomic sequence and mRNA or coding sequence of genes can be copy and pasted or input as fasta or text files. Based on alignment of the input sequences using the Spidey module, a putative gene structure is graphically visualized along with exon-intron sequences of color codes. Primer design can be easily performed by dragging mouse on the displayed sequences or input primer targeting position with desirable values of primers. The output of designed primers with detailed information is provided by the Primer3 module. PCR evaluation of 24 selected primer sets successfully amplified single amplicons from six Brassica rapa cultivars. The Pickprimer will be a convenient tool for genetic and molecular breeding studies of plants.
Transgenic Lettuce Expressing Chalcone Isomerase Gene of Chinese Cabbage Increased Levels of Flavonoids and Polyphenols
Han, Eun-Hyang ; Lee, Ji-Sun ; Lee, Jae-Woong ; Chung, In-Sik ; Lee, Youn-Hyung ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 467~473
Flavonoid are large group of the polyphenolic compounds which are distinguished by an aromatic or phenolic ring structure and the phenolic compounds are induced by microbial infection, ultraviolet radiation, temperature and chemical stress. They are known for their antioxidant activity, anti-allergic, anti-inflammatory, anti-microbial and anti-cancer activities. In this study, changes in flavonoid content were investigated using heterologous chalcone isomerase (CHI) expression system. Also, phenolic compounds level was measured to examine the relation between flavonoids and phenols contents. Explants of lettuce (Lactuca sativa L.) were transformed with Agrobacterium tumefaciens LBA 4404 strain containing pFLH-CHI (derived from pPZP2Ha3) vector constructed with CHI gene from Brassica rapa. The putative transgenic plants were confirmed by genomic DNA PCR analysis. Also the transcription levels of the gene were analyzed by semi-quantitative RT-PCR with gene specific primers. The total flavonoid contents were increased at
generations over 1.4 and 4.0 fold, respectively. Total phenol contents also increased at
generation. These results indicate that CHI gene plays an important role to regulate the accumulation of flavonoids and its component changes.
Evaluation of Late Blight Resistance and Agronomic Characteristics of Short-day Adapted Potato Germplasm
Park, Young-Eun ; Cho, Hyun-Mook ; Cho, Ji-Hong ; Cho, Kwang-Soo ; Kim, Hyun-Jun ; Landeo, Juan ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 474~481
Potato late blight caused by the fungus Phytophthora infestans is one of the most vital diseases damaging the potato plant. It is for this reason that breeding potato cultivars resistant to late blight is now becoming a major concern around the world. The B3C1 clones has been introduced by the Highland Agriculture Research Center, RDA. The clones which came from International Potato Center in 2005 have a durable resistance to late blight. The clones were bred under a short-day condition in Peru. However, there was still no report on the adaptability of these clones to the long-day condition in Korea. Therefore, this study was conducted to evaluate the late blight resistance and major agronomic characteristics of B3C1 clones under Korea's long-day condition. This study was also done to generate genetic resources for developing new varieties resistant to late blight. In this study it was found out that in naturally infested field with P. infestans, AUDPC (area under disease progress curve) values of all B3C1 clones were significantly lower than those of the control varieties, 'Superior', 'Atlantic', and 'Haryeong'. It was found out that B3C1 clones had a high level of resistance to late blight and that they could be used as genetic resources to breed potato varieties with late blight resistance. However, several undesirable characteristics such as extremely late maturity, excessive growth of stems and stolons, and production of tubers that cannot easily be removed from the stolons were also observed. Among the twenty B3C1 clones, two clones, LB-8 (CIP393077.159) and LB-11 (CIP393371.159), were selected for cultivating at the highland area of Korea. Two B3C1 clones were crossed with Korean breeding lines and clonal selection for the progenies is still in progress.
The Use of Phosphomannose-isomerase as a Selectable Marker to Recover Transgenic Cauliflower
Min, Byung-Whan ; Kim, Suk-Weon ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 482~487
We attempted to establish a new selection marker system from cauliflower without antibiotics or herbicide. This new selection marker system was based on the principle that only the transformed plants could convert mannose to fructose. A transformed plant could then use the fructose as carbon source by using pmi gene that can recognize phosphomannose-isomerase that converts mannose-6-phosphate into fructose-6-phosphate. Agrobacterium tumefaciens LBA4404 contained pNWB-HSP101 vector linked with HSP101. Five days after germination, the heat tolerant gene was inoculated into the cauliflower's hypocotyl. After culturing, selection was performed in MS medium that contained
NAA, 0.4% (w/v) mannose and 2.0% (w/v) sucrose. PCR, Southern blot and Northern blot analyses were performed to determine whether HSP101 gene was inserted in the transformed plant. After acclimation,
seeds were successfully collected from the transformed plants in the greenhouse. This is the first report for successful transformation of cauliflower plant using the mannose selection system. Moreover, the stable selection system established in this study could be applied an alternative reducing antibiotics for human health and environmental safety during the genetic transformation of higher plants.
Effects of Cold Pretreatment and Medium Composition on Anther Culture Initiation in Strawberry
Na, Hae-Young ; Kim, Dae-Young ; Chun, Chang-Hoo ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 488~493
Callus culture initiation of strawberry (Fragaria
ananassa Duch.) was investigated at different Murashige and Skoog (MS) medium strengths, types and concentrations of plant growth regulators, and incorporating a cold pretreatment period to determine the optimal nutritional and environmental conditions. No high quality callus was induced on MS media without auxin regardless of medium strength. When 6-benzylaminopurine (BA) was combined with indole acetic acid (IAA), naphthalene acetic acid (NAA), and 2,4-dichlorophenoxyacetic acid (2,4-D), high quality callus were highly induced compared to medium supplemented with auxin alone. When
BA was combined with IAA, NAA, and 2,4-D, high quality callus induction was more effective than the medium supplemented with the other BA concentrations. The best combination of auxin and cytokinin for high quality callus induction was
BA. Although the differences in callus induction were not significant, high quality callus induction at half strength MS medium was more effective than at full strength medium. When
sucrose was added to the half strength MS medium, the rate of high quality callus induction increased. The optimum cold pretreatment temperature and period for high quality callus induction were
and 72 h, respectively. Regeneration rate of high quality callus increased in MS medium supplemented with thidiazuron.
Microspore-derived Embryo Formation in Response to Cold Pretreatment, Washing Medium, and Medium Composition of Radish (Raphanus sativus L.)
Chun, Chang-Hoo ; Na, Hae-Young ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 494~499
Cold pretreatment, washing medium and composition of nutrient media may have marked effects on microspore embryogenesis. When microspores isolated from radish (Raphanus sativus L. cv. Gwanhun) flower buds were washed with Nitsch & Nitsch (NLN) medium liquid medium containing
sucrose (NLN-13), yields of microspore-derived embryos were greater than when using B5 liquid medium containing
sucrose. Microspore viability is known to decrease rapidly with storage; however, in this experiment, microspore viability was maintained for 24 h at
without media. Among the various medium concentrations used (
NLN liquid medium),
NLN liquid medium induced the most efficient formation of microspore-derived embryos. In addition, microspore-derived embryos yields were greater when microspores were cultured in
NLN liquid medium supplemented with
NLN microelements, compared to medium not supplemented with microelements. In this study, the highest yield of microspore-derived embryos was observed when the microspores derived from flower buds were washed using NLN-13 liquid medium and then cultured on
NLN liquid medium supplemented with
NLN microelements, followed by incubation at
for 30 days.
A New Cultivar of Gypsophila paniculata with Powdery Mildew Resistance and Double Florets of Pink Color, 'Dream Pink'
Cheong, Dong-Chun ; Lim, Hoi-Chun ; Choi, Chang-Hak ; Song, Young-Ju ; Kim, Jeong-Man ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 500~502
'Dream Pink', a cultivar of Gypsophila paniculata was newly developed for cut flowers by Jeollabuk-do Agricultural Research & Extension Services. It has morphological characteristics of the intermediate plant type, double florets with many petal and two pistils, emarginate petal tip and campanulate calyx shape. Also 'Dream Pink' had several other traits such as strong flower stalk, deep pink flower color, resistance to powdery mildew and pest injury. Furthermore, 'Dream Pink' produced higher number of nodes, primary branches, longer flower stalk length with long intermodal length. In subalpine area, 'Dream Pink' cultivar showed narrow branching angle as compare to 'My Pink', during the summer cultivation. Blooming in 'Dream Pink' was delayed by 5 days, its florets were broader with more number of petals as compare to 'My Pink'.
A New Hybrid, Dark Pink Spotted Type Phalaenopsis 'Pink Marble'
Kim, Mi-Seon ; Lee, Young-Ran ; Rhee, Hye-Kyung ; Park, Sang-Kun ; Shin, Hak-Ki ; Jung, Hyang-Young ; Lim, Jin-Hee ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 503~506
A new hybrid, Phalaenopsis 'Pink Marble' was made by the National Institute of Horticultural and Herbal Science, Rural Development Administration, in 2005. This hybrid was selected from self-crossed progenies of P. '21-1' (collected number) in 1999. In 2001, one line was selected based on the aspects such as flower color, leaf shape, flower stalk, and vigorous growth. Trials were conducted from 2003 to 2005 for evaluation and selection of this cultivar. 'Pink Marble' had a medium flowering habit and a dark pink spot (RHS, RPN74B) on white petal and sepal when fully opened. The number of flowers on each peduncle was 7.5, and flower diameter was 52.3 cm. The general impression of petals and sepals is a plate shape. The thick sepal could extend the long flowering time. The average length of leaf and peduncle were 16.5 cm and 6.8 cm, respectively. It had a half-erect leaf form, and was a fast-growing cultivar. This hybrid is relatively easy to clone.
Breeding of a Seedless Table Grape Cultivar 'Heukisul' (Vitis sp.) with High Quality
Park, Sung-Min ;
Korean Journal of Horticultural Science and Technology, volume 29, issue 5, 2011, Pages 507~509
'Heukisul' (3x) a cross made in 2000 between 'Kyoho' (4x, Vitis sp.) and 'Thompson Seedless' (2x, Vitis vinifera L.) in a seedless grape breeding program, was preliminarily selected in 2004. After regional adaptation testing under the name of 'KTS014' at two sites during 2004-2005, it was finally selected in 2006. 'Heukisul' showed low incidence of berry shattering, resulting in a good berry set compared to 'King Dela'. 'Heukisul' had budburst on April 23, flowering on in June 9, and fruit maturation in September 29 (almost the same as 'King Dela' at Chuncheon), and it was considered a midseason cultivar. The mean berry weight was 4.0 g, about 0.7 g heavier than 'King Dela', and mean soluble solids were
higher than 'King Dela'. The skin color was dark violet with abundant bloom and the flesh was very firm. Although the cluster was compact, it required no cluster thinning. Also the incidence of berry cracking was very low.