Boseogchal is a newjaponica rice cultivar developed from the three-way cross ofHwayoung, Tamjin and Sinseonchalat Honam Agricultural Research Institute (HARI), RDA, in 2004. It is a waxy rice with about 117 days of growth duration fromtransplanting to har

A single cross, Chalok 4, is a waxy corn hybrid (Zea mays L.) developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2004. This hybrid, which has white kernels, a good eating quality and high yield of ear weight, was

Samkwangchal, a new covered waxy barley cultivar, was developed from the cros betwen Daebaegbori withearly maturing and large grain size and Suwon 302 with waxy endosperm by the Honam Agricultural Research Institutequality characteristics in the yield tri

Dahyang, a new six-rowed and covered barley cultivar, was developed from the cros betwen Milyang26/NICS, RDA in 2005. Among the crosses made in 1994, a promising line that showed both high yield and lodging resistance in theYield Trial tested at Suwon in

A new pea cultivar, Cheongmi was developed at the Yeongnam Agricultural Research Institute (YARI) in 2003. It was selected from a cross YP303 (Frescoloy / Upton) // YP113 (Sparkle/Early Bird) /3/ YP115 (Sparkle / Euiseongjaerae) in 1992. The preliminary,

A new vegetable soybean cultivar, “Dajin” (Milyang 125) was selected from a cross Keunolkong / Josaengbaekjo(Introduction) // Keunolkong, and was developed at the Yeongnam Agricultural Research Institute (YARI) in 2003 on the basis of its yield performanc

A new pink gerbera (Gerbera hybrida Hort.) cultivar ‘Pink Angel’ was developed from a cross between ‘Tamara’ and ‘Nevada’ followed by seedling and line selections at the Flower Breeding Research Institute, Gyeongnam Agricultural Research and Extension Ser

A new red gerbera (Gerbera hybrida Hort.) cultivar ‘Honeymoon’ was developed from a cross between ‘Beauty’ and ‘Sardana’ at the Flower Breeding Research Institute, Gyeongnam Agricultural Research and Extension Services (ARES) in 1998. Characteristic trial

Sinchalok, a new waxy corn hybrid was developed from the cross between two inbred lines KW36 as a seed parent and KW1 as a pollen parent at the National Crop Experiment Station, RDA in 2001. Sinchalok was 66 days in days to silking and early maturity hybr

A new covered barley variety, 'Daeyeonbori' was developed from the cross between Milyangketbori, a stabile for machine harvest, and Olbori by the barley breeding team in the National Yeongnam Agricultural Experiment Station (NYAES) in 1999. An elite line,

Sunmang' is a new rapeseed (Brassica napus L.) of F₁ hybrid with high yield and high quality for oil and meal. This hybrid was developed from the cross between Mokpo-CGMS (male sterile line) and 84055-B-10-3-1-6 (restore line) in 1996. It was a

Cheongram' is a new hybrid rapeseed (Brassica napus L.) with high yield and high quality for forage. This hybrid was developed from the cross between Mokpo-CGMS (male sterile line) and Mokpo 64 (restore line) in 1996. Forage yield of 'Cheongram' was 57% h

황칠수액 분비량을 개체 및 서식지별 차이가 있는지를 검토하고, 차이가 있다면 이를 토대로 서식환경 및 우수개체선발을 위한 기초자료를 수집하고자 하였다. 황칠수액 분비량을 기준으로 우수개체를 선발하고 선발 개체군을 중심으로 주요 방향성 정유성분의 동정 및 분포 양상을 조사하였다. 황칠나무 수액은 서식지별, 수령 및 개체별 차이가 확인되었으며, 분비량을 기준으로 우수개체를 선발하였다. 선발된 개체에서의 주요 정유성분에서β-elemene, germacrene-D, β-selinene, α-selinene, γ-cardinene, δ-cadinene 등이 었으며, 그 중에서도 germacrene D가 주요 구성성분임이 확인되었다. 선발개체의 주요 정유성분의 구성비율은 서식지별 및 각 개체별 차이가 존재하였다.

Spikelet and vascular bundle development in rice panicles is considered to be the important elements in determining the genotype's yield capacity and translocation ability of assimilates into grains, respectively. This study was conducted to clarify the varietal differences of the spikelet and vascular bundle formations among three rice cultivars; Iksan 435 (japonica), Dongjinbyeo (japonica) and Namcheonbyeo (Tongl-type). Iksan 435 had more primary rachis branches (PRBs), secondary rachis branches (SRBs) and spikelets per panicle than Dongjinbyeo, but less than Namcheonbyeo. Among three cultivars, Namcheonbyeo showed the highest spikelet number per panicle which were differentiated SRBs mainly on PRBs of lower rachis nodes. And Namchenbyeo showed the highest number of large vascular bundle (LVB) as well as small vascular bundle (SVB) and it displayed the largest diameter of LVB. Between the two japonica cultivars, the numbers of LVBs end SVBs were significantly higher in Iksan 435 than those in Dongjinbyeo. The PRBs to LVBs ratio of Namcheonbyeo was twice as large as those of Dongjinbyeo and Iksan 435. These results indicate that the newly bred cultivar, Iksan 435, has improved yield capacity by increasing the number of especially rachis branches and spikelets formation as well as 1,000 grain weight, compared to other former japonicas

본 실험은 고품질 다수성 생강 품종육성에 필요한 기초 자료를 얻기위해 국내에서 수집한 우량생강 24클론을 포장과 하우스에서 재배하여 주요 작물학적 특성을 조사한 결과 다음과 같다. 조사된 클론중에서 수량과 6-gingerol 함량에서 높은 유의차가 인정되었다. 포장에서는 CG9579(3520kg/10a)의 수량이 가장 높았고, 그 다음으로 CG95134, CG9512, CG96109, CG9596 순이었다. 우량 클론으로 선발된 클론중 6-gingerol 함량을 조사한 결과 CG9579가 4.44mg/g로 가장 높았으며, 그 다음으로는 CG9583이 4.35mg/g, CG95134가 4.32mg/g순이었다. 하우스에서 는 수량이 CG9503과 CG9521 클론이 10a당 5529kg으로 가장 높았고, CG9515, CG9578, CG9579, CG96103 그리고 CG95105 클론이 10a당 4,000kg이상의 수량을 보았다.