• 농업과학연구
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• 제38권3호
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• pp.549-557
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• 2011

Chinese cabbage is a staple food to Korean, which has the high degree of self-sufficiency and worldwide breeding technique in the aspect of seed. However, the producers' competitiveness has been decreasing after the agricultural product market was open. In order to cope with this problem, the government introduced some policies for promoting seed industry in 2007 to reflect producer's needs for high quality seeds of Chinese cabbage. These policies will be a good opportunity for producers to secure and promote the producers' competitiveness against low-price importing Chinese cabbage. In this aspect it is very important to know how well these policies are established and what Chinese cabbage farmers want in regard to a new variety of Chinese cabbage seed. This study was carried out to look over the Chinese cabbage producers' using pattern about a new variety of seed and show some directions for efficient way of diffusion of a new variety of seed to producers using a survey research. The main results are as follows. The producers thought the characteristics of a new variety of seed most important factor compared to other factors such as the seed price, and easiness of cabbage sales when they choose a seed. Also, the 65% of respondents were willing to accept a new variety of seed and thought the government support for an exhibition field and diffusing public information about a new variety of Chinese cabbage seed are important in accepting a new variety of seed.

• 한국작물학회지
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• 제47권
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• pp.200-215
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• 2002

There are some international standards and organization controling the quality characteristics of varieties and seeds such as UPOV, OECD, ISTA, AOSA. The National List system to check variety performance such as quality characteristics of plant varieties and seeds was established by each countries. The UPOV (International Union for the Protection of New varieties of Plant) regulates the requirement of plant variety protection that is distinctness (D), uniformity (U), stability (S) (here in after called DUS), Novelty and Denomination, and some quality characteristics are used to examine the requirement of plant variety protection by each crops. OECD (Organization for Economic Cooperation Development) seed scheme regulates the seed certification for seed trade between countries. ISTA (International Seed Testing Association) and AOSA(Association for Official Seed Analyst) regulates the seed analysis standard and methods. Most of the countries in Europe has the National List system, which check the value for cultivation and use(VCU), that is to say, variety performance such as yield, quality and stress to environment. All the seeds should be enlisted in the National List before sell the seed in their country. All the quality characteristics checked variety performance are for instance, amylose and amylopectin content in rice, molting quality, $\beta$-glucan, protein in barley, protein and sugar content in soybean, sugar and amylopectin content in corn etc. Conditions for the protection of new variety of plant are DUS. Quality characteristics may be the important characteristics and used to check DUS in crop by crop. It is very important to develop a new characteristics and establish standard method fur examine the VCU and DUS test for each crop.

• 한국환경농학회지
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• 제42권4호
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• pp.450-456
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• 2023

The National Forest Seed and Variety Center aims to write a manual for cultivation and characteristic inspection of new seed varieties in Korea, serving dual purposes. The first is the enhancement of the test guidelines, particularly the distinctness, uniformity and stability (DUS) test, for new seed variety, where research and examination are conducted based on the test guidelines. However, if the crop-specific test guidelines are initially reorganized, the details are unclear. Therefore, it seeks to maintain a written record to prevent confusion when the person in charge is changed. The second is to encourage the development of new varieties. By incorporating general characteristics and cultivation techniques in the manual, it seeks to encourage breeders to develop new varieties. Additionally, it serves as an important chronological record of the creation process, thereby helping future manual authors. This article introduces the current status of new plant variety protection and outlines the significance of creating a manual for cultivation and characterization of Actinidia arguta for screening new varieties.

• 화훼연구
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• 제16권4호
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• pp.325-332
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• 2008

국내 화훼류 육성품종의 미국 출원에 대한 안내 및 미국 육성 품종의 국내 출원 시 품종보호심사에 활용하는 자료로 제공하고자 미국의 식물신품종보호제도와 식물특허에 대한 운영실태를 조사하였다. 미국은 신품종 대상에 따라 종자번식 품종과 괴경식물은 식물신품종보호법으로, 무성번식품종은 식물특허로 구별되어 보호를 받게 된다. 품종보호나 특허를 받기위한 조건은 신규성, 구별성, 균일성, 안정성이며, 과수나 묘목의 품종보호 보호기간은 25년이고 나머지 대상의 품종보호와 식물특허의 보호기간은 20년이다. 식물신품종보호와 식물특허의 심사 모두 재배심사나 현지심사를 하지 않고 출원인이 제출한 서류만으로 심사를 한다. 화훼류 출원은 영양체번식 품종의 식물특허 출원이 대부분이고 종자번식 품종의 품종보호 비율은 낮으며, 전체 식물특허 출원 중 화훼류가 87%를 차지하며, 자국과 외국간 출원 품종수에는 큰 차이가 없다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.108-108
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• 2017

The objective of this study was to know prospect and present state of new variety breeding of Forage and Grassland in South Korea. The industry of forage in Korea is going up to expend through utilization of good quality forage, Italian ryegrass, forage corn and oat rather than rice straw. Especially, since 2007, Italian ryegrass(IRG) had been very important major winter forage crop in South Korea and developed 13 varieties including very early maturity variety (three varieties), early maturity variety (three varieties), medium maturity variety (one variety) and late maturity variety (six varieties). But the disadvantage of Italian ryegrass was weak winter hardness and drought but has good advantage of forage nutritive value, high-yielding and high sugar content, and like livestock as like hanwoo, dairy cattle, goat so on. The Ko-variety (Korea developed variety) of Italian ryegrass has high cold-tolerant and adaptability more than any other country developed variety, and expend to cultivation area from southern area (below Daejeon) to middle-northern area (upper Han river). Although the cultivation area of Italian ryegrass of South Korea was 21,700 ha in 2007, right now, that of Italian ryegrass is about 123,600ha due to expend cultivation area and know famer to good forage crop and have a various maturity varieties (very early, early, medium, late) according to local situation (before-crop harvesting stage or double cropping system). The seed market of Italian ryegrass in South Korea becoming extended to around 100 million Korean won and seed export get nearer to foreign country. We are going to develop of new variety for stress tolerant and high yield and quality forage variety, good adaptability to the Korean environmental conditions including reclaimed area, make self-sufficiency system for forage seed (Italian ryegrass), export our seed to foreign countries.

• Molecules and Cells
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• 제19권3호
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• pp.428-435
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• 2005

This study was carried out to assess the potential of SSR markers for variety identification by comparing SSR markers and morphological traits in tests of distinctiveness, uniformity, and stability (DUS) of pepper (Capsicum annuum L.) varieties. Twenty-seven SSR markers were polymorphic in 66 pepper varieties, revealing a total of 89 alleles. Average polymorphism information content (PIC) value was 0.529, ranging from 0.03 to 0.877. Cluster analysis of the band patterns separated the varieties into three groups corresponding to varietal types. Morphological trait-based clustering showed some degree of similarity to dendrogram topologies based on the SSR index. However, no significance correlation was found between the SSR and morphological data. SSR markers could be used to complement a DUS test of a candidate variety and to select complimentary varieties by pre-screening existing varieties in the context of protecting new varieties of pepper.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2023년도 춘계학술대회
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• pp.142-142
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• 2023

Cowpea(Vigna unguiculata L. Walp) has excellent physical properties and texture of starch, so it is mainly used in various ways for songpyeon sediment, rice-cake paste, and porridge. To utilize it as various processed products such as songpyeon sediment and cowpea milk, 'Okhyun', which has green cotyledons and black seed coats and can be harvested by combine was developed. A cowpea variety 'Okhyun' was improved from the cross between IT145379 and IT208081 at the JARES in 2022. 'Okhyun' has an erect plant with an intermediate plant habit, a light purple-colored corolla, and heart-shaped leaflets. 'Okhyun' has green cotyledons and black seed coats, and has straight black brown pods when mature. The stem length of 'Okhyun' is 47cm, and the weight of 100-seed weight was 12.9g, which was lower than the control variety 'Okdang'(16.6g). 'Okhyun' contains 25.8mg/100g of anthocyanin, 279mg/100g of total polyphenols, and 335mg/100g of total flavonoids, respectively. The average yield of 'Okhyun' was 1.97ton per hectare, 11% higher than that of the control cultivar 'Okdang'. 'Okhyun'' does not require the installation of an espalier-net net, so it is possible to harvest with a combine. In addition, 'Okhyun' variety with green cotyledons and a black seed coat is expected to contribute to developing regional specialties and various processed products.

• 한국자원식물학회지
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• 제35권4호
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• pp.464-470
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• 2022

산초나무 5개 품종의 꽃과 열매에 대해 형태적 특성을 조사한 결과, 화서의 너비와 암꽃잎의 길이는 품종에 따라 유의적 차이가 있었다. 또한 각 특성에 대한 기여도 확인을 위해 주성분을 확인한 결과, 제3주성분까지의 누적 설명력은 71.0%였고, 화서의 크기, 열매 송이의 크기, 암꽃잎의 크기, 종자의 무게, 종자 수는 높은 상관관계를 보였으며, 이러한 특성들은 품종을 설명하는데 있어 중요도가 높다고 사료된다. 분산분석 결과와 주성분 분석결과에서 화서의 너비, 암꽃잎의 길이 특성이 공통적으로 유의한 결과를 보였으며, 이 특성들은 품종 특성을 설명하는 데 있어 중요 형질이라 판단된다. 유집분석 결과 거리 수준 15를 기준으로 I그룹은 한초 915호, 1020호와 1030호로 가장 근접하였으며, 나머지 930호, 10호는 각각의 그룹으로 구분되었다. 그러나 질적 특성 결과에서 개화기와 결실기 차이가 확연하게 나타남으로 품종 간 구별되는 것을 확인할 수 있었다. 본 연구를 통해 산초나무의 꽃과 열매의 형태적 특성에서 품종 간 유연관계를 확인하였으며, 산초품종 육성을 위한 기초자료로 이용될 수 있을 것으로 사료되며. 향후 다양한 품종에서 유연관계를 설명을 위해 데이터 처리에 대한 기초자료로 이용될 것을 기대한다.

• 원예과학기술지
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• 제32권1호
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• pp.129-132
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• 2014

시들음병에 저항성인 수출 및 국내용 양배추 품종을 개발하기 위해 시들음병 저항성 계통인 $A337MSBC_5$를 모계로, 중국에서 수집하여 결구긴도와 구의 색이 우수하여 선발 고정된 397-$G_6$를 부본으로 선발하여 2008년부터 조합검정과 채종시험 및 지역적응성 시험을 거쳐 'CT-171' 품종을 육성하였다. 시들음병 저항성 검정은 뿌리 침지법을 이용하여 저항성 정도를 검정하였고, 그 결과 'CT-171' 품종이 대조품종인 '아시아볼', '중감 11호'에 비해 더 강한 저항성을 보였다. 'CT-171' 품종은 숙기가 58일로 대조품종에 비해 숙기가 빨랐으며, 내한성이 강하여 가을작형에 적합하였고 안토시안발현이 없는 특성을 가지고 있었다. 구중은 1.5kg, 구고 14cm, 구폭 15cm, 고갱이가 5.7cm로 재배환경에 고갱이 길이가 크게 영양을 받지 않는 안정된 특성을 가지고 있었다. 'CT-171' 품종은 2013년 2월 국립종자원에품종보호권이 최종등록 되었으며, 원예적 형질이 우수한 시들음병 저항성 품종으로 해외 수출용 및 국내 수입대체용으로 적합할 것으로 판단된다.

• 한국축산시설환경학회지
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• 제20권4호
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• pp.189-194
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• 2014

A new tall fescue variety (Festuca arundinacea Schreb.) named Greenmaster and Purumi were. In this study, we evaluated the seed production of new tall fescue domestic varieties were cultivated in Korea. Agronomic aspects of tall fescue domestic varieties were determined using seed production and forage nutritive value of straw at the National Institute of Animal Science from 2013 to 2014. The heading date according to the varieties displayed differences and domestic varieties showed enhanced disease resistance. The harvested seed yields of Greenmaster was 35% higher as 1,664 kg/ha and it's also yield of straw higher than that of Fawn. However, the nutritive value of both varieties was similar. The dry matter yield of Pumumi was 25% higher as 11,080 kg/ha. Accordingly, developed a new variety of domestic tall fescue with excellent environmental adaptability, aiming to make contribution to the vitalization of the Korean grassland industry.