JongCheol Ko

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Jee-Yeon Ko

Rural Development Administration

Myeong-Eun Choe

Rural Development Administration

Seuk-Bo Song

Changwon National University

Yerim Oh

Jeonbuk National University

Do‐Yeon Kwak

Rural Development Administration

MyeonEn Choe

Do-Yeon Kwak

Gyeongsang National University

Hyun-Yul Shin

Gyeongsangnam-do Agricultural Research and Extension Services

Y D Kim

K.S. Lee

Cooperative Institutions

Rural Development Administration

Institute of Crop Science

National Institute of Agricultural Science and Technology

Changwon National University

Jeonbuk Agricultural Research & Extension Services

National Radio Research Agency

Gyeongsangnam-do Agricultural Research and Extension Services

Jeonbuk National University

Pusan National University

Texas A&M University

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Changes in Functional Materials and Antioxidant Activity according to Cultivation Environment in the Grain of Sorghum ‘Donganme’

Journal of the Korean Society of International Agriculture (2017)

Myeong-Eun Choe Jee-Yeon Ko Seuk-Bo Song Chang‐Hwan Park JongCheol Ko

10.12719/ksia.2017.29.4.400

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A new high yielding and good quality rice cultivar adaptable to double cropping and late planting, "Nampyeongbyeo"

Shin JongCheol Ko B.K. Kim K.S. Lee J.K. Lee

Multiple cropping

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A New Small Redbean Cultivar 'Arari' with Lodging Resistance and High-Quality

Korean Journal of Breeding Science (2016)

Seok-Bo Song Jee-Yeon Ko Myung-Chul Seo Do‐Yeon Kwak Koan-Sik Woo

SeokBo Song*, JeeYeon Ko, MyungChul Seo, DoYeon Kwak, KoanSik Woo,JungKyung Moon, SangIk Han, WonYoung Han, MyeonEn Choe, JongCheol Ko, and InSeok Oh. Korean J. Breed. Sci. 2016;48:373-7. https://doi.org/10.9787/KJBS.2016.48.3.373

10.9787/kjbs.2016.48.3.373

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Agronomic Performance of Waxy Sorghum Hybrids Derived from US Lines and Korean Landraces

Journal of the Korean Society of International Agriculture (2017)

Myeong-Eun Choe G. M. C. Carvalho Jee-Yeon Ko Seuk-Bo Song Chang‐Hwan Park

In the past years, few grain sorghum varieties with limited yield potential have been developed and grown in Korea. Hybrids tend to be more productive and resistive to unfavorable environmental conditions than pure line varieties. However, no hybrid cultivars are available and never have been planted for grain sorghum in Korea. The main aims of this study were to (i) verify if US x Korean and US x US hybrids increase grain yield in Korea; (ii) assess the performance of waxy hybrids in Korea and the US; (iii) estimate general combining ability and specific combining ability for the lines studied; and (iv) identify superior lines and hybrids for future use in breeding. Two distinct sets of waxy-endosperm sorghum hybrids derived from Korean landraces and US lines (Texas A&M University) were tested in the US and Korea. Compared to the parental lines, hybrids derived from US lines and Korean landraces showed yield increase that ranged from 2% to 127%. Hybrids created from US lines showed higher heterosis than US x Korean hybrids. Hybrid vigor was observed in the US and Korea, but shifts in ranks of hybrid performance occurred. The results indicate that it is feasible to develop grain sorghum hybrids adapted to Korean conditions only if delibrate selections take place in Korea. A combination of Korean and US sources could provide an acceptable germplasm base for developing Korean landrace based sorghum hybrids.

Sorghum bicolor

10.12719/ksia.2017.29.4.389

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New cold resistant and high yielding naked barley variety "Nulssalbori".

Yerim Oh In-Bae Choi Young-Dae Oh JongCheol Ko H K Park

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Effect of Electron Beam Irradiation on the Microbial Safety and Qualities of Sliced Dried Squid

Journal of the Korean Society of Food Science and Nutrition (2005)

JongCheol Ko Yuehui Ma

전자선 조사가 건조된 오징어의 미생물학적 안전성과 품질에 미치는 영향을 확인하였다. 전자선은 2~16 k㏉의 선량으로 각각 조사하여 대조구와 비교하였다. 실험 결과 전자선에 의해 건조된 오징어에 존재하는 미생물 수가 유의적으로 감소하는 것을 확인하였다. 건조된 오징어에 존재하는 총 호기성 세균, 곰팡이와 효모, 대장균 군의 D_(10) value는 각각 8.57, 4.60, 8.10 k㏉로 나타났다. 전자선 조사된 시료 및 대조구에 대한 Hunter 색차계의 L, a, b 값을 측정한 결과 유의적 차이가 없는 것으로 나타났고, 관능검사의 경우도 조사된 시료와 대조구와의 큰 변화는 나타나지 않았다. 따라서 전자선 조사로 인해 건조된 오징어의 미생물학적 안전성과 품질 개선의 가능성을 확인하였다.

Electron beam processing

10.3746/jkfn.2005.34.3.433

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