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        검색결과 59

        1.
        2019.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        1. 볼리비아 국토 면적의 34.21%는 농경지로 이 중 89.06% 는 목초지다. 볼리비아 전체인구 중 농촌지역 거주민이 30.7% 인데 반해 차코지역은 과반수(약 58%)가 목축업, 작물재배 등에 종사 중으로 농업이 지역경제의 주요 축을 구성한다. 2. 차코는 생태학적으로 식생이 다양하고 생물다양성이 보전된 곳으로 농업 잠재성은 높은 반면 저개발 되어 있고, 원주민의 한정된 공간에서의 무분별한 재래식 방목과 불충분한 식수와 초지 부족, 기후변화로 토양침식, 생태계 파괴가 진행 되고 있다. 3. 산지축산체계는 나무·관목 및 목초의 선별적 간벌을 통해 임간초지를 조성하고 목초를 생산하며 계획적 방목을 통한 지속가능한 축산관리 모델임이 입증됐다. 4. 체계 도입조건으로 자연·물리적 환경(최소 100ha 이상·수자원 접근 가능), 예산운영(4년간 114,000 Bs 고정지출 능력), 기술적용(가축관리 및 식수 수집·저장), 관리능력(축산관리 기본지식·학습의지)이 주요했다. 5. 농업개발협력 시 발생 문제(예산처리지연, 이해당사자 간 소통 미흡, 참여저조)를 해결하기 위해 지속가능한 사업관리체계 및 거버넌스가 구축돼야 한다.
        4,000원
        3.
        2018.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This experiment was conducted at Suwon, Korea from 2013 to 2015. The objective of this study was to establish the optimum seeding rate, and to clarify the nitrogen fertilizer level for rye seed production in central and north area of Korea. We used Korean rye cultivar ‘Gogu’ for this test. We employed a split-plot design with three replications. The main plots were designed by three seeding levels (3, 5 and 7 kg 10a-1), but other sub-plots were randomly seeded. The plots were treated with three different nitrogen fertilizer levels (3, 6 and 9 kg 10a-1). The percentage of productive tiller, number of grain per spike, fertility rate, 1 liter weight, and 1000-grain weight decreased as seeding rate increased from 3 kg 10a-1 to 7 kg 10a-1, whereas the number of spike per ㎡ increased. Therefore the grain yields of rye had less of an effect by increasing seeding rate. There was an increase in number of spike per ㎡, number of grain per spike, and fertility rate as nitrogen fertilizer level increased from 3 kg 10a-1 to 9 kg 10a-1, but grain yields significantly not affected by the interaction of seeding rate × nitrogen fertilizer levels. However, the best seeding rate and nitrogen fertilizer level for rye seed production were 5 kg and 5∼6 kg 10a-1, respectively, considering seed and fertilizer reduction and the prevention of pollution by excess fertilization.
        4,000원
        8.
        2017.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        ‘Saeyoung’, a winter triticale (X Triticosecale Wittmack) for forage, was developed at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2012. The cultivar ‘Saeyoung’ has narrow and long leaves of light green color, middle size and thin culm, and a medium grain of brown color. The heading date and yellow ripe stage of ‘Saeyoung’ was May 3 and May 27, which were similar to check cultivar ‘Shinyoung’, respectively. ‘Saeyoung’ showed a little stronger in cold tolerance and a little weaker in resistance to lodging than the check, and wet injury, powdery mildew, and leaf rust were similar to those of the check cultivar. The forage fresh and dry matter yields of ‘Saeyoung’ at milk-ripe stages were 47.2 and 15.6 MT ha-1, respectively, which was 9% and 4% higher than those of the check. The crude protein content of ‘Saeyoung’ was 0.4% lower than 6.8% of the check, while was higher than the check cultivar ‘Shinyoung’ in neutral detergent fiber, acid detergent fiber. Total digestible nutrients of ‘Saeyoung’ was also 3% lower than 62.8% of the check cultivar. It showed grain yield of 4.1 MT ha-1, which was 11% higher than that of the check. ‘Saeyoung’ is recommended for fall sowing forage crops in areas in which average daily minimum mean temperatures in January are higher than -10 ℃.
        4,000원
        9.
        2017.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        A new naked oat cultivar, ‘Jungmo2005’(Avena nuda L.), was developed for food and forage use by National Institute of Crop Science, RDA in 2010. It was derived from a cross between F1[‘Early80’/‘Gwiri33’] and F1[‘Early80’/‘Gwiri23’]. ‘Early80’, a covered oats, has early heading and high yielding, while ‘Gwiri23’ of covered type and ‘Gwiri33’ of naked type has early heading with large-size grain. ‘Jungmo2005’ has the characteristics of narrow and long leaves of pale green color, middle diameter culm of yellow color and medium grain of whitish yellow color. Cultivar ‘Jungmo2005’ had 2 days earlier heading date (May 9) than the check cultivar ‘Seonyang’ (May 11) in field condition. The ‘Jungmo2005’ showed better winter hardiness than that of the check cultivar, and similar to the check cultivar in respect to lodging resistance. The ‘Jungmo2005’ had 105 cm of culm length, 21.5 cm of spike length, 658 spikes per m2, 82 grains per spike, 23.3 g of 1,000-grain weight, and 622 g of test weight. The grain yield of ‘Jungmo2005’ was averaged 3.38 MT ha-1, which was 6% higher than that of the check. Average forage fresh and dry matter yield of ‘Jungmo2005’ harvested at milk-ripe stage were 44.8 and 12.6 tone ha-1, respectively, compared with 47.5 and 12.5 tone ha-1 of the check. The protein content of the ‘Jungmo2005’ was similar to the check (7.6% and 7.5%, respectively), while ADF (28.6%) and NDF (51.5%) were lower than the check (31.4% and 57.0%, respectively). TDN content and RFV were higher than those of the check (66.3%, 120.3 and 64.1, 105.2, respectively). ‘Jungmo2005’ is recommended for fall sowing cropping only in the south area where daily minimum mean temperatures are averaged higher than -4 ℃ in January, and it should not be cultivated in mountain areas, where frost damages is likely to occur. The areas would do better only to sow in spring season.
        4,000원
        10.
        2016.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        ‘Shinseong’, a winter forage triticale cultivar (X Triticosecale Wittmack), was developed at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2015. The cultivar ‘Shinseong’ was selected from the cross RONDO/2*ERIZO_11//KISSA_4/3/ ASNO/ARDI_3//ERIZO_7 by CIMMYT (Mexico) in 1998. Subsequent generations were handled in pedigree selection programs at Mexico from 1999 to 2004, and a line ‘CTSS98Y00019S-0MXI-B-3-3-5’ was selected for earliness and good agronomic characteristics. After preliminary and advance yield testing in Korea for 3 years, the line was designated ‘Iksan47’. The line was subsequently evaluated for earliness and forage yield in seven locations, Jeju, Iksan, Cheongwon, Yesan, Gangjin, Daegu, and Jinju from 2013 to 2015 and was finally named ‘Shinseong’. Cultivar ‘Shinseong’ has the characteristics of light green leaves, yellow culm and spike, and a medium grain of brown color. The heading date of cultivar ‘Shinseong’ was April 24 which was 3 days earlier than that of check cultivar ‘Shinyoung’. The tolerance or resistance to lodging, wet injury, powdery mildew, and leaf rust of ‘Shinseong’ were similar to those of the check cultivar. The average forage dry matter yield of cultivar ‘Shinseong’ at milk-ripe stages was 15 MT ha-1, which was 3% lower than that (15.5 MT ha-1) of the check cultivar ‘Shinyoung’. The silage quality of ‘Shinseong’ (6.7%) was higher than that of the check cultivar ‘Shinyoung’ (5.9%) in crude protein content, while was similar to the check cultivar ‘Shinyoung’ in acid detergent fiber (34.6%), neutral detergent fiber (58.6%), and total digestible nutrients (61.6%). It showed grain yield of 7.2 MT ha-1 which was 25% higher than that of the check cultivar ‘Shinyoung’ (5.8 MT ha-1). This cultivar is recommended for fall sowing forage crops in areas in which average daily minimum mean temperatures in January are higher than -10℃.
        4,000원
        13.
        2015.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        국립식량과학원에서 국내 환경에 적합한 조사료용 호밀 품종을 개발하기 위하여 1995년에 ‘조춘호밀’ 등 10개 품종을 방임수분으로 혼합 교배하여 그 중에서 형질이 우수한 ‘SR95POP-S1-140-9-1-3-7-5-3’ 계통을 선발하였다. 선발 계통에 대해 생산력을 검정한 결과 특성이 우수하여 ‘호밀50호’로 계통명을 부여하고 5개 지역에서 3개년간 지역적응성을 검정하였으며, 조사료 수량뿐만 아니라 종실 수량이 높은 것으로 나타나 2013년 직무육성신품종 선정위원회에서 신품종으로 선정됨과 함께 ‘씨드그린’으로 명명되었다. ‘씨드그린’은 초형이 직립이고, 잎색은 농록색이며, 길이는 길고, 폭은 넓은 편이다. 줄기는 황백색으로 중간 정도의 굵기이며, 종실은 갈색이고, 중간 크기이다. ‘씨드그린’의 출수기는 4월 22일로 표준품종인 ‘곡우’ 보다 3일, 성숙기는 6월 16일로 2일 빠르다. 초장은 141 cm로 ‘곡우’보다 3 cm 길다. 한해는 평균 2로 표준품종인 ‘곡우’의 1과 대등한 수준이며, 도복은 ‘곡우’ 보다 약간 강하였으며, 습해와 병해는 발생하지 않았다. ‘씨드그린’의 생초수량은 ha당 39.8톤(곡우 40.8톤), 건물수량은 평균 8.3톤(곡우 8.4톤)으로 ‘곡우’ 보다 약간 적었으나, 종실수량은 4톤으로 ‘곡우’보다 16% 증수하였다. ‘씨드그린’의 조단백질 함량은 10.5%로서 ‘곡우’ 보다 0.8% 높았으며, ADF와 NDF 함량(%)은 각각 38.8%와 66.4%로 ‘곡우’ 보다 낮았으나, TDN 함량(%)은 58.3%로 ‘곡우’ 보다 1.3% 높았으며, TDN 수량 또한 4.81 톤/ha로 ‘곡우’ 보다 약간 높았다.
        4,000원
        14.
        2014.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        유전자변형생물체(Genetically Modified Organisms, GMOs)는 식량, 환경, 에너지부족 등 인류가 직면하고 있는 각종 문제점을 해결하기 위한 대안으로 그 개발 및 이용이 가속화되고 있다. 특히 몇몇 국내 개발 GM 작물은 안전성평가 단계에있어서 조만간 실용화될 것으로 전망되고 있다. GMO에 대한일반인들의 인식조사 연구는 대부분 소비자를 대상으로 진행되어왔으며 실제 GM 작물이 상업화되었을 때 이를 재배할 경작자에 대한 인식조사 연구는 부족한 실정이다. 본 연구에서는 농업인의 GMO에 대한 인식 파악 및 재배의도를 알아보기위해 설문조사와 표적집단면접(FGI)를 병행하였다. 설문조사는 논산, 김천, 충주, 상주 지역의 농민 747명을 대상으로 실시하였으며, FGI는 농업분야에 종사하고 있는 남녀 농업인 5명을 대상으로 수행하였다. 조사 결과 GM 작물에 대한 인지수준과 지식수준은 각각 85.5%, 65%로 일반인과 크게 다르지않았다. GM 작물에 대한 정보 실태로써 ‘알고 있거나 들어본적이 있는 GM작물 종류’에 대해 ‘수량증진’에 대한 응답이가장 높았으며, ‘병저항성’, ‘해충저항성’ 순으로 조사되었다.GM 작물에 대한 인식은 ‘긍정적’과 ‘부정적’ 응답이 비슷한 분포를 나타냈으나, GMO에 대한 섭취 및 재배 의향은 전반적으로 부정적인 것으로 조사되었다. 특히 GMO의 재배보다는섭취에 더 부정적인 것으로 나타났다. GM 작물 형질에 대한선호도로는 ‘병 저항성’ 형질이 가장 높았으나 ‘맛’, ‘수량’,‘건강개선’ 등의 형질에 대해서도 고른 응답을 보였다.
        4,000원
        15.
        2012.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        해충저항성 Bacillus thuringiensis (Bt) 벼의 비표적곤충인 벼물바구미(Lissorhoptrus oryzophilus)에 대한 성충 전용살충제 Clothianidin 액상수화제의 살충제 감수성 시험을 실시한 결과, 72시간-LC50은 0.245 ml/L(95% 신뢰한계는 0.195~0.307 ml/L)이었으며, Bt벼의 모본으로 대조로 사용한 낙동벼의 72시간-LC50은 0.257 ml/L(95% 신뢰한계는 0.199~0.331 ml/L)이었다. 72시간-LC50은 낙동벼에서 다소 높았지만, 해충저항성 Bt벼 72시간-LC50이 낙동벼의 95% 신뢰한계 내에 포함되어, 두 품종의 LC50값에 유의성이 없는 것으로 판단된다.
        4,000원
        16.
        2011.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        해충저항성 Bt벼와 낙동벼의 미꾸리(Misgurnus anguillicaudatus) 와 잉어(Cyprinus carpio)에 대한 급성독성시험을 실시한 결과 48시간 및 96시간-LC50은 1,000mg/L 이상으로 나타났다. 48시간 및 96시간 무영향농도(NOEC)는 1,000mg/L이었다. 급성독성 시험기간 중 해충저항성 Bt벼와 낙동벼간의 pH, DO, 수온, 체중 및 전장에 대한 유의적인 결과는 나타나지 않았다.
        4,000원
        20.
        2017.06 KCI 등재 서비스 종료(열람 제한)
        ‘Jungmo2501’ (Avena sativa L.), a winter oat for forage use, was developed by the breeding team at the National Institute of Crop Science, RDA in 2010. The following is the characteristics of ‘Jungmo2501’ that is characterized as light green leaf, yellow brown culm and whitish yellow grain. The heading date of ‘Jungmo2501’ was about 3 days earlier than that of check cultivar ‘Samhan’(May 7 and May 10, respectively). Its plant height was 11 cm longer than 103 cm of the check, and the leaf blade ratio of aerial parts was 26 % higher than the check (11.8% and 9.4%, respectively). The cold tolerance, resistance to lodging and wet injury of ‘Jungmo2501’ were similar to those of the check. The average forage dry matter yield of ‘Jungmo2501’ harvested at milk-ripe stage was 5% higher than the check (15.5 ton ha -1 and 14.7 ton ha -1 , respectively). ‘Jungmo2501’ was higher than the check in terms of protein content (6.6% and 5.9%, respectively), neutral detergent fiber (58.5% and 57.6%, respectively), and acid detergent fiber (34.5% and 32.1%, respectively), while total digestible nutrients was lower than the check (61.6% and 63.6%, respectively), and TDN yield was 0.37 ton ha -1 more than that of the check (9.71 ton ha -1 and 9.34 ton ha -1 , respectively). The silage grade of ‘Jungmo2501’ estimated by Flig score showed level Ⅱ, meaning good quality. Fall sowing cropping of ‘Jun
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