초록 ▼

중부지역 환경에서 재배 가능한 고품질․가공 특수미 벼 품종개발과 기상재해 대비 내랭성(춘천, 중국), 고온등숙성 계통 육성이 목적임. 최고품종 중생 청품, 조생 진광 및 해들과 목적별 다양한 계통을 육성하였고, 최근 쌀 재고미를 해결할 수 있는 건식쌀가루 전용 품종(한가루)을 개발하여 쌀 가공산업 활성화와 쌀 생산조정 기반을 마련하였음. 수집된 유전자원은 육성 계통의 다양성을 확대하고, 각종 특섬검정 결과는 기후온난화와 기상재해에 대비한 신품종 개발에 활용될 것임. 또한 중국과의 국제공동연구를 통하여 내랭성 유전자원 이용 유전적 다

중부지역 환경에서 재배 가능한 고품질․가공 특수미 벼 품종개발과 기상재해 대비 내랭성(춘천, 중국), 고온등숙성 계통 육성이 목적임. 최고품종 중생 청품, 조생 진광 및 해들과 목적별 다양한 계통을 육성하였고, 최근 쌀 재고미를 해결할 수 있는 건식쌀가루 전용 품종(한가루)을 개발하여 쌀 가공산업 활성화와 쌀 생산조정 기반을 마련하였음. 수집된 유전자원은 육성 계통의 다양성을 확대하고, 각종 특섬검정 결과는 기후온난화와 기상재해에 대비한 신품종 개발에 활용될 것임. 또한 중국과의 국제공동연구를 통하여 내랭성 유전자원 이용 유전적 다양성을 확대시켜 break down 위험에 대비하는 등 창의적인 연구가 돋보이는 결과를 얻었음.

(출처 : 보고서 요약서 4p)

Abstract ▼

Purpose&Contents
This project was conducted to develop early and medium maturing, high quality, functional and processing rice, high yield potential and disease resistant new rice varieties that were adaptable to middle and mid-northern plain area in Korea.

Results
From 2013 to 2017, we

Purpose&Contents
This project was conducted to develop early and medium maturing, high quality, functional and processing rice, high yield potential and disease resistant new rice varieties that were adaptable to middle and mid-northern plain area in Korea.

Results
From 2013 to 2017, we crossed 1,419 combinations and produced 1,355 F1 generations and selected 24 combination from anther culture for genetic fixation and selected 426 lines. We selected 548 combinations. Also, in F3 and subsequent generation, we selected 6,924 lines. Number of lines performed yield trials was performed 703 lines in observational yield trial(OYT), 344 lines in preliminary yield trial(PYT) and 240 lines in replicated yield tria(RYT) for 5 years. As the results of yield trials, we selected 33 elite lines for local adaptability test(LAT). During this project, we bred 11 cultivars and 3 mid-parents, We bred 3 premium quality varieties, The medium maturing, disease resistant(Bl, BB, SV) variety Cheongpum (Suweon567), early mauting varieties Jinkwang(Suweon575) and Haedeul (Suweon588). We bred low-input chemical fertilizer culturable and adaptable to processing rice, Misomi(Suweon548), multi-resistant, high qulaity varieties Seonpum(Suweon554) and Samkwang1(Suweon566). And also, we developed 2 japonica cultivars, Asemi(Suweon574) and Asemi1(Suweon576), that can be cultivated in tropical area, We developed 3 type of special use varieties that were Hangaru (Suweon594) and Misiru(Suweon604) for dry-milling flour production to boost the rice processing industry, and aromatic variety Jungmo1043 (Suweon562) with high Ferrous and Zinc content in endosperm, and giant embryo variety Keunpum(Suweon595). To maintain cultivar’s seed purity, we produced breeder’s seed of 300 cultivars. For promotion of new varieties and elite lines to farmers and guests from all around the country, we established demonstration nursery and cultivated about 30 varieties per year. For rapid generation advancement to increase selection efficiency, we have carried shuttle breeding with International Rice Research Institute(IRRI), 4,300 lines and selected 3 plants per lines.

In 1980, year of cold injury, the cold damage was the most serious and the yield loss was 34% of average year yield. In 1993 of cold damage year, the yield loss showed only 9% by the varietal improvement of cold tolerant in rice. The damages rice growth by cold weather could occur different stages, through the germination, seedling, tillering, reproductive, heading and grain filling to harvest season.

This study conducted to develop cold tolerance and early maturing rice varietis for adopting in highland of Middle land in Korea. Under pedigree breeding method, developed 181 combinations 3,355 families of F2 and 485 cross combination 4,714 lines of F3 selected in Jinbu highland field and 73 combinations 2,547 families of F2 and 171 combination 2,204 lines of F3 selected Chuncheon field during 2013 to 2017. Preliminary yield test conducted 107 lines and Replicated yield test conducted 51 lines. Two varieties, “Jinok” and “Jinhan”, with cold tolerant, high eating quality and early maturing were developed for 5 years.

Several cold tolerance screening methods were conducted on low temperature germination, seedling cold tolerance, fileld screening using cold water and reproductive stages at meiosis and heading for 5 years. Low temperature germination test used 622 of local adoptative line. Field cold tolerance of nationwide 2,436 breeding lines were screened at vegetative growth stage and selected 201 cold tolerance lines. The 1,242 rice germplasms tested and screened 215 cold tolerant lines and used breeding material.
All the cold screening data on 7,821 lines were stored on RDA rice breeding information system database. As results, the lines data will contribute to develop cold tolerant varieties and establish cultural practices for reducing cold injuries.

Secure useful agricultural genetic resources is essential in order to develop a new rice variety. Therefore, germplasm collection and evaluation have important implications for fostering a variety of new varieties. We have been done various test for Resistance to select useful germplasm.
We carried out in collaborative research with International Rice Research Institute(IRRI) participating in the international network test 4 items of productivity and 2 items of resistance test was conducted during 2013∼2017. In detail, IIRON test of productivity was conducted during 2013∼2016 for 253 germplasm including HHZ8-SAL6-SAL3-Y2, and for the IRTON 111 germplasm including 99035-TR2002-1-1-1-2 during 2013∼2015, 2017. Also for the IRHTN regarding heat tolerance, 27 germplsms including IR11C38 during 2014, and for the IRBN regarding blast resistance 297 germplasm including IR04A115 during 2013∼2015, 2017 were carried out respectively. 675 germplasms form foreign countries were evaluated for rice breeding program. Artificial pollination of 1,685 crosses was carried out with 400 germplasms in crossing block. The most important resistance test in breeding system was performed with domestically developed lines in blast, Bacterial Blight(BLB) and Brown Planthopper(BPH).

From 2013 to 2017, a total of 1,760 for grain characteristics of rice breeding lines were evaluated. The degree of white core and belly of milled rice showed good appearance quality of 0∼1. Amylose content of the rice breeding lines was the highest range at 53.2% in the range of 18 to 20%, and the 1,125 lines (61%) of the total rice breeding lines was below 6.5% in protein content.

We evaluated the advantages and disadvantages of the existing high temperature treatment facilities in order to establish an evaluation system that can treat the high temperature stably during the ripening period and set the condition of maximizing the variation among the varieties and elite lines. we analyzed the effect of the high temperature treated various cultivation methods and maturing groups by moving transplanting period.
QTL was investigated by performing genetic analysis related to high temperature ripening using this high temperature resistance evaluation system. In addition, the genetic resources having ripening ability even under the high temperature were searched for major domestic varieties, so we select the germplasms such as ‘Goun’, ‘Unmi’, and ‘Haechanmulgyeol’.
As a result of examining the variation of ripening rate in the field and greenhouse, these lines had little change in ripeness rate under the high temperature. The selected cultivar was utilized as a crossing block, and through generation advance, we foster 371 lines related ripening tolerance at the high temperature.

Expected Contribution
The premium quality varieties will be used in the farm to improve the overall rice taste and contribute to the increasement of rice consumption.
The varieties for dry milling rice flour and special use varieties are also used in the rice processing industry and the rice production control system. It will also contribute to resolve the rice inventory. The varieties with multi-resistance to insect pest and tolerant to abiotic stresses include disaster are expected to contribute the enhancement of rice competitiveness by developing new varieties with adaptability of climate change.

(출처 : Summary 7p)

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 요약서 ... 4
• 국 문 요 약 문 ... 5
• Summary ... 7
• 목차 ... 10
• 제 1 장 연구 개발 과제의 개요 ... 11
• 제1절 연구 개발 목적 ... 11
• 제2절 연구 개발의 필요성 ... 11
• 제3절 연구 개발 범위 ... 12
• 제 2 장 국내외 기술개발 현황 ... 14
• 제 3 장 연구 수행 내용 및 결과 ... 17
• 제1절 벼 조중생종 고품질 품종 개발 ... 17
• 제2절 중북부 고랭지적응 벼 품종개발 ... 25
• 제3절 벼 육성계통 및 유전자원 내냉성 검정 및 DB화 ... 29
• 제4절 중북부 중간지 적응 조숙 고품질 품종개발 ... 37
• 제5절 벼 품질고급화를 위한 등숙율 및 도정수율 향상 연구 ... 43
• 제6절 도입유전자원 및 육성계통의 병해충 및 재해안전성 특성검정 ... 82
• 제7절 벼 육성계통 및 품종 미질특성 검정 ... 93
• 제8절 등숙기 품질관련 고온저항성 우량계통 육성 ... 97
• 제9절 북방지역 적응 및 재배안정화를 위한 내냉성 벼 유전자원 수집 및 내냉성 품종육성 실용화(국제공동) ... 118
• 제 4 장 목표달성도 및 관련분야 기여도 ... 134
• 제1절 목표대비 달성도 ... 134
• 제2절 정량적 성과(논문게재, 특허출원, 기타)를 기술 ... 135
• 제 5 장 연구 결과의 활용 계획 ... 136
• 제 6 장 연구 과정에서 수집한 해외 과학 기술 정보 ... 138
• 제 7 장 연구 개발 결과의 보안 등급 ... 146
• 제 8 장 국가과학기술지식정보서비스에 등록한 연구시설·장비 현황 ... 146
• 제 9 장 연구개발과제 수행에 따른 연구실 등의 안전조치 이행실적 ... 146
• 제 10 장 연구개발과제의 대표적 연구실적 ... 146
• 제 11 장 기타사항 ... 149
• 제 12 장 참고문헌 ... 153
• 끝페이지 ... 156