• International Journal of Industrial Entomology and Biomaterials
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• v.48 no.2
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• pp.78-85
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• 2024

Bud sport (bud mutation) is a valuable source for existing new genotypes in mulberry (Morus spp.) as well as critical materials for studying the molecular mechanisms underlying essential traits. Thus, identification, collection, characterization, and conservation of such natural variants are prerequisites for enhancing the mulberry genetic resource in the germplasm. In this context, we identified and characterized three bud sports (VBS-1, VBS-2, and VBS-3) of a popular mulberry cultivar, Victory-1 (V-1). These bud sports are morphologically, anatomically, and genetically more distinct from their mother plant, Victory-1. Moreover, these bud sports display lower growth and yield potential. Furthermore, these showed remarkably lower 2C DNA contents of 0.74 pg (VBS-1), 0.78 pg (VBS-2), and 0.76 pg (VBS-3), when compared to their mother plant V-1 (2C = 0.81 pg). On the other hand, molecular characterization between the bud sports and their mother plant revealed the existence of genetic variation due to the natural bud mutation that occurred in the mulberry cultivar Victory-1.

• Journal of Mushroom
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• v.12 no.1
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• pp.58-62
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• 2014

To develop a new cultivar of King oyster mushroom white variety (Pleurotus ferulae), GW10-68 as parental strain was selected by the method of Di-mon crossing between monokaryotic strain ASI 2798-24 derived from ASI 2798 and dikaryotic strain ASI 2803. The GW10-95(ASI 2803 ${\times}$ ASI 2798-24) was shown the best cultural characteristics, selected to be a new cultivar and designed as 'Beesan No.2'. The 'Beesan No.2' was formed incompatibility line distinctly in the confrontation growth of parental strains ASI 2803, ASI 2798 and Beesan No.1. Analysis of the genetic characteristics of the new cultivar 'Beesan No.2' showed a different DNA profile as that of the control strains, ASI 2803, ASI 2798 and 'Beesan No.1', when RAPD(Random Amplified Polymorphic DNA) primer URP4 was used. The optimum temperature and pH arrange for mycelial growth were $25^{\circ}C$ and pH5~8, respectively. Fruiting body production per bottle was about 123.3 g. And also the stipe was long. This new cultivar 'Beesan No.2' of Pleurotus ferulae was characterized white-like variety of King oyster mushroom in the color of stipe, that was long and low yield compared to that of other cultuvar 'Beesan No.1'. We therefore expect that this new strain will increase of export and substitute cultivar of King oyster mushroom.

• Korean Journal of Medicinal Crop Science
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• v.22 no.5
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• pp.339-348
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• 2014

The transcriptomes of four ginseng accessions such as Cheonryang (Korean ginseng cultivar), Yunpoong (Korean ginseng cultivar), G03080 (breeding line of Korean ginseng), and P. quinquefolius (American ginseng) was characterized. As a result of sequencing, total lengths of the reads in each sample were 156.42 Mb (Cheonryang cultivar), 161.95 Mb (Yunpoong cultivar), 165.07 Mb (G03080 breeding line), and 166.48 Mb (P. quinquefolius). Using a BLAST search against the Phytozome databases with an arbitrary expectation value of 1E-10, over 20,000 unigenes were functionally annotated and classified using DAVID software, and were found in response to external stress in the G03080 breeding line, as well as in the Cheonryang cultivar, which was associated with the ion binding term. Finally, unigenes related to transmembrane transporter activity were observed in Cheonryang and P. quinquefolius, which involves controlling osmotic pressure and turgor pressure within the cell. The expression patterns were analyzed to identify dehydrin family genes that were abundantly detected in the Cheonryang cultivar and the G03080 breeding line. In addition, the Yunpoong cultivar and P. quinquefolius accession had higher expression of heat shock proteins expressed in Ricinus communis. These results will be a valuable resource for understanding the structure and function of the ginseng transcriptomes.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.35 no.1
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• pp.65-72
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• 1990

The mitotic cycle duration and component plase periods of rice (Oryza sativa L. 'Sumjinbyeo and Seokwangbyeo') root merisem cells at 15, 20, and 30$^{\circ}C$ were determined the use of tritiated thymidine, In this work, the time interval between the maxima of sequential mitotic appearances of marked cells was used to estimate the mitotic cycle duration (MCD) of rice, The MCD of rice of the cultivar 'Sumjinbyeo' and 'Seokwangbyeo' at 20. and 30$^{\circ}C$ was 12. and 20hr, respectively. But the MCD of 'Sumjinbyeo' and 'Seokwangbyeo' was 18 and 20hr, at 15$^{\circ}C$. respectively. The MCD decreased with increasing temperature, The duration of component phase of rice cultivar 'Seokwangbyeo' were essentially the same ratio at 20$^{\circ}C$ and 30$^{\circ}C$. but in 'Sumjinbyeo' cultivar the ratio of $G_1$ period was almost doubled while those of $G_2$ and M were decreased by almost two times at 20$^{\circ}C$ and 30$^{\circ}C$. Deoxyribonucleic acid (DNA). Ribonucleic acid (RNA), and protein synthesis were reduced with increasing temperature from 15$^{\circ}C$ to 30$^{\circ}C$ while the MCD was decreased, This result suggest that DNA, RNA and protein synthesis may not affect the MCD from 15$^{\circ}C$ to 30$^{\circ}C$ in rice.

• Journal of The Korean Society of Grassland and Forage Science
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• v.32 no.3
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• pp.193-202
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• 2012

'Joseong', a winter forage triticale cultivar (X Triticosecale Wittmack), was developed by the breeding team at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2010. The cultivar 'Joseong' was selected from the cross FAHAD_5/RHINO1R.1D 5+10 5D'5B'//FAHAD_5 by CIMMYT (Mexico) in 1992. Subsequent generations were handled in pedigree selection program at Mexico from 1993 to 1998, and a line 'CTSS92Y-A-4Y-0M-5Y-0B' was selected for earliness and good agronomic characteristics. After preliminary and advance yield test in Korea for 2 years, the line designated as a line name of 'Iksan26'. The 'Iksan26' was subsequently evaluated for earliness and forage yield in 7 different locations such as Jeju, Iksan, Cheongwon, Yesan, Naju, Daegu, and Jinju from 2008 to 2010 and finally named as 'Joseong'. The cultivar 'Joseong' has characteristics of dark green leaf, yellow culm and spike, and large grain of yellowish brown color. The heading date of cultivar 'Joseong' was April 24, which was 5 days earlier than that of check cultivar 'Shinyoung'. It showed better tolerance or resistance to lodging, wet injury, powdery mildew, and leaf rust than those of the check cultivar 'Shinyoung'. The average forage dry matter yield of cultivar 'Joseong' at milk-ripe stage was 14.5 MT $ha^{-1}$, which was lower than 16.5 MT $ha^{-1}$ of the check cultivar 'Shinyoung'. The silage quality of 'Joseong' (5.3%) was lower to the check cultivar 'Shinyoung' (6.0%) in crude protein content, while was 2.1% superior to the check cultivar 'Shinyoung' (61.9%) in TDN (total digestible nutrients). It showed 5.1 MT $ha^{-1}$ of grain yield, which was 40% higher than that of the check cultivar 'Shinyoung' (3.65 MT $ha^{-1}$). This cultivar is recommended for fall sowing crop in the area where daily minimum mean temperatures are averaged higher than $-10^{\circ}C$ in January, and as a winter crop using whole crop forage before planting rice in around Korea.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.46-46
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• 2019

The experiments were performed in the Jinan (elevation: 300 meters above sea level), Jeollabuk-do. Seedlings (n = 63 per $3.3m^2$) of ginseng cultivar (Cheonpung, Yeonpung) were planted on April 10, 2015. Shading material of plastic film house was blue-white film. Before the Planting seedling, silicate (3 kg/10 a) or chitosan (40 kg/10 a) was fertilized and foliar sprayed on the leaves 1000 times dilution solution once a month from May to September every year. The growth results of 5-year old ginseng surveyed in 2018 are as follows. The average air temperature in the plastic film house was the highest at $26.6^{\circ}C$ and $26.5^{\circ}C$ in July and August, respectively, and the highest temperature was $40.5^{\circ}C$ in July. The maximum daily temperature of $35^{\circ}C$ or more was 30 days, with the average soil temperature being $24.9^{\circ}C$ in August. The chemical properties of the test soil are as follows. pH was 6.4~6.9 level and EC was 0.35~0.46 dS/m. The organic matter content was 33.5~41.4 g/kg, and available-P content was 251.9~306.8 mg/kg. Exchangeable cations contents, such as K, Ca and Mg were all the appropriate ranges. The soil microbial density surveyed by the dilution plate method was 10~50 times higher than that of control (Non-treatment) and actinomycete density was 3~6 times higher. Pathogens of the genus Fusarium by Metagenome analysis decreased 91.3% and 68.2% respectively in the foliar sprayed of chitosan and soluble-silicate. The light intensity (PAR) in the blue-white film plastic film house gradually increased until July and then decereased, with the average of light intensity in March-October was $120.3umol/m^2/s$. The growth of aerial parts such as plant height and stem length was better than non-sprayed group in silicate or chitosan treatments and Yeonpung cultivar was superior to the Cheonpung cultivar. The SPAD value was higher in Yeonpung cultivar foliar sprayed with soluble-silicate. The growth of underground parts such as root length and taproot length were better in chitosan and soluble-silicate treatment than control, especially in Yeonpung cultivar foliar sprayed with chitosan was good in taproot length and taproot diameter, and fresh weight of root was 60.1 g. Ginsenoside contents were 24.9 mg/g and 22.4 mg/g, in the Cheonpung cultivar foliar sprayed with soluble-silicate or chitosan respectively, 28% and 15% higher than control (19.5 mg/g). The incidence of disease by Alteraria panax and Botrytis cinerea was 3~9% and 4~9%, respectively. High temperature damage rate was 3~5%.

• Korean Journal of Environmental Agriculture
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• v.18 no.1
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• pp.66-69
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• 1999

To investigate the hormetic effect of the low dose ${\gamma}-ray$, soybean(Glycine max L.) seeds of three cultivars (Hwangkeumkong, Bansakong, S900 cv.) were irradiated with the dose of 0.5∼20.0 Gy and cultivated in the experimental field. The hormetic effects of the low dose ${\gamma}-ray$ on the growth of field experiment were different from each cultivar, that is, more effective in the S900 cultivar of black seedcoat color than in the Hwangkeumkong and Bangsakong of yellow ones. The germination rate of S900 cultivar increased about 30% in the 0.5Gy irradiated group compared with that of the control. The plant height of the 4.0Gy irradiated group in both Bangsakong and S900 cultivar increased 15% more than that of the control. Grain yield and the number of pod in 1.0 Gy and 4.0 Gy irradiated group of S900 cultivar and that of 2.0 Gy irradiated group of Hwangkeumkong increased 25 and 35% on the average, respectively.

• Horticultural Science & Technology
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• v.35 no.3
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• pp.387-391
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• 2017

Kiwifruits introduced to Korea typically have green fruit flesh, yellow flesh, or yellow flesh with red coloration around the core. Here, we describe a new cultivar called 'Redvita', the first kiwifruit cultivar of Korea with yellow flesh and red coloration around the core. A conventional field cross was conducted in 2003, and permission for the final release of 'Redvita' was obtained in 2012. 'Redvita' originates from 'Red Princess', a maternal vine known for the red coloration in its flesh. The pollinizer is 'NHK0013' (IT233175), which blooms in early May. A principal feature of 'Redvita' is its high vitamin C content, which at an average of 140 mg per 100 g of fresh weight is 2 - 4 times higher than other commercial cultivars. The average fruit weight is 97 g; bigger than that of the control cultivar 'Hongyang'. 'Redvita' blooms in mid-May and is usually harvested in early to mid-October, approximately 150 - 160 days after anthesis. 'Redvita' produces 3 or 4 flowers per fruiting shoot, with no small lateral flowers, therefore does not need to be thinned before blooming for commercial production. The cultivar is acidulous because of a high titratable acidity content (about 1.5%), which is higher than other cultivars (less than 1.0%). 'Redvita' was registered with the Korean Seed and Variety Service in 2015 for plant variety protection rights (no. 5604).

• KOREAN JOURNAL OF CROP SCIENCE
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• v.45 no.4
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• pp.257-260
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• 2000

The content of anthocyanin, cyanidin 3-glucoside (C3G) and the peonidin 3-glucoside (P3G) from 591 rice cultivars and the antioxidative activities of MeOH extract from 8 rice cultivars were evaluated. Among them, C3G content of pigmented rice were ranged from 0 to 451.9mg in 100 g brown rice, while the P3G contents were in the range from 0 to 42.7mg in 100g brown rice. There was no correlation between C3G and P3G content. Total anthocyanin content ranged from 0 to 475.1mg in 100g brown rice. The antioxidative activity, the scavenging activity on DPPH (2,2-diphenyl-picryl-hydrazyl) radical of MeOH extracts from rice grain, were different according to cultivars. The activity of blockish purple pericarp rice cultivars was twice stronger than that of white pericarp cultivar. Especially, the antioxidative activity of Heugjinjubyeo was four times stronger than that of white pericarp cultivar. The scavenging effect on DPPH radical in rice extracts was related to the total anthocyanin contents of the extracts.

• Korean Journal of Breeding Science
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• v.42 no.6
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• pp.668-673
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• 2010

A new black seed coat soybean cultivar, 'Heugseong' was developed at the National Institute of Crop Science (NICS) in 2008. The goal to breed the black seed coat soybean is to develop the cultivar with large seed size, high yield, lodging tolerance, and resistance to disease such as soybean mosaic virus (SMV), and bacterial pustule. 'Heugseong' was selected from the cross between 'Gnome85', showing yellow seed coat, lodging tolerance, and high yield, and 'Cheongja', showing green cotyledon, and black seed coat. The preliminary, advanced and regional yield trials for this cultivar were carried out from 2004 to 2008. It has determinate growth habit, purple flower, brown pubescence, brown pod color, black seed coat, yellow cotyledon, elongated seed shape, oval leaf shape and large seed size (29.2 grams per 100 seeds). It was 4 days later in maturity than the check cultivar 'Ilpumgeomjeongkong'. 'Heugseong' was better than the check cultivar in the seed quality of isoflavone contents(1,913 ${\mu}g/g$). It has good adaptability for cooking with rice in ratio of water absorption and seed hardness, for physics of black tofu, and for fermented black soybean paste. The average yield of 'Heugseong' was 2.37 ton per hectare in the regional yield trials carried out in six locations of Korea from 2006 to 2008.