Near infrared reflectance spectroscopy (NIRS) has been used as a rapid analysis tool to many components in cereal grains. This study was to investigate the potential NIRS application for determination of components in Korean wheat. Main components of wheat quality are protein content, moisture content, SDS-sedimentation volume and ash content. Wheat has screened for quality, hardness of seed by NIRS in CIMMYT (International Maize and Wheat Improvement Center). NIRS calibration was used as a rapid and simultaneous analysis method to determine the wheat quality components. A total of 282 wheat samples, collected from a wide range of Korean wheat cultivation region for 2 years, were analyzed by NIRS. NIRS calibration of individual components were developed using first derivation, second derivation and modified partial least-squares regression and internal cross validation method. As a result, calibration formula of protein was y=0.937x+0.786, calibration formula of moisture was y=0.922x+0.911, calibration formula of ash was y=0.933x+0.08, calibration formula of SDS-sedimentation volume was y=0.947x+2.150. NIRS calibration for wheat quality may be useful for determining protein(R² = 93.6), moisture(R² = 91.6), SDS-sedimentation volume(R² = 94.3), and ash(R² = 93.4). This study shows that 4 calibrations of NIRS is a useful application in the accurate and rapid determination of wheat quality. Therefore, NIRS could be used to rapidly determine the quality contents of wheat for grade evaluation in a purchasing of wheat cultivation region.

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Improvement of winter hardiness, lodging resistance and good quality have been recently received more attention by covered barley(Hordeum vulgare L.) breeders than ever in Korea. ‘Hyeyang’, a new covered barley cultivar with early maturing and high yield was developed by the National Institute of Crop Science, RDA in 2010. It was derived from the cross between‘Milyang87’and‘Wolsung8120’with good quality. The initial cross was done in 1999 and the selected line, ‘Iksan432’ (YB4494-B-B-21-2), showed high yield and good quality characteristics under yield trial test from 2008 to 2010. The following is the characteristics of‘Hyeyang’that is characterized as the vernalization of I, green leaf, compact spike and long rough awns. The heading date of‘Hyeyang’were similar to‘Olbori’. The culm length was 82 cm which was 6 cm shorter than‘Olbori’. It showed the spike length of 4.3 cm, 798 spikes / m², 56 grains / spike and 26.7 g for 1,000 grains weight. It showed similar winter hardiness and stronger resistance to barley yellow mosaic virus (BaYMV) compare to‘Olbori’. It showed higher diastatic power 235DP than that of check cultivar, ‘Olbori’. Average yield of ‘Hyeyang’ was 4.44 MT/ha in the regional yield trials carried out in four location at double cropping system in Korea from 2008 to 2010, which was 8 percent higher than ‘Olbori’. ‘Hyeyang’would be suitable for the area above –8°C of daily minimum temperature in January in Korean peninsula.

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“Cheongwoo”, a white winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross “Kanto75/8/Tapdong/4/Bb#1/Jangkwang// STRAMCHO/3/Suwon220/5/Suwon185/ CI12703//Kanto75///Suwon219/7/F1277” and “Keumkang” in 1998 at RDA. “Keumkang” is a semi-hard white winter wheat with high yield. And mother plant is a winter wheat with long culm length, high yield. “Cheongwoo” was evaluated as “Iksan326” in Advanced Yield Trial Test in 2007. It was tested in the regional yield trial test between 2008 and 2009. “Cheongwoo” is first whole crop wheat with long culm length, high-yield. The Heading date of “Cheongwoo” was similar to “Keumkang”. The average forage yield of “Cheongwoo” was about 14.8 ton ha^-1 in dry matter in paddy field. This dry matter was higher than dry matter of “Keumkang” (13.2 ton ha^-1). The cultivar had 97 cm of culm length, 1,070 spikes per m² and it showed better rate of culm. Culm length of “Cheongwoo” were longer than “Keumkang”. This cultivar would be suitable for the area above the daily minimum temperature of -10°C in January in Korean peninsula. Our research will improve good-quality of silage by using winter cereal crops.

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‘Boanchal’, a new covered waxy barley cultivar derived from crossing the ‘Suwon232’ and ‘Masangwamaeg’ with early maturing and colored waxy endosperm cultivars, respectively was developed at the National Institute of Crop Science, RDA in 2009. ‘Boanchal’ is characterized as the growth habit of Ⅲ, green leaf, medium spike and long rough awns. The heading date was April 24 in upland and April 17 in paddy field which was 2 and 1 day, respectively earlier than check cultivar, ‘Seodunchal’. The culm length of ‘Boanchal’ was 79 cm, which was 11 cm shorter than that of check cultivar. It showed spike length of 3.5 cm, 854 spikes per m², 43 grains per spike, and 28.0 g of 1,000-grain weight. Comparing to check cultivar, ‘Boanchal’showed stronger winter hardiness, but a similar resistance to barley yellow mosaic virus (BaYMV). It had purple grain and showed higher expansion rate than that of check cultivar, ‘Seodunchal’. Average yield of ‘Boanchal’ in the regional adaptation yield trial (RYT) was 2.96 MT/ha in upland and 3.91 MT/ha in paddy field. ‘Boanchal’ would be suitable for the area above -8°C of daily minimum temperature in January in Korean peninsula.

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• A Black Barley (Hordeum vulgare L.) Cultivar, ‘Heukdahyang’, with High Polyphenol Content, High Yield, and Tolerance to Lodging Stress
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Doubled haploid (DH) system is an effective tool in improving breeding efficiency and has been widely applied in wheat breeding programs. Wheat x maize hybridization is used for the production of wheat DH because of its efficiency and ease of application. We carried out an experiment to investigate genotype effect of wheat (Triticum aestivum) and maize (Zea mays) on efficiency of wheat haploid production. In various wheat x maize crosses, ten wheat and seven maize genotypes were tested. Haploid embryos were rescued and cultured for plant regeneration. Average seed set, embryo formation and haploid regeneration of five wheat varieties in crosses with a pollinator cv. Gangdaok were about 75%, 19% and 8.4%, respectively. Their haploid regeneration ranged from 3.7~9.8% and cv. Jokyoung showed highest regeneration. Average seed set, embryo formation and haploid regeneration of seven maize genotypes in crosses with a parent cv. Jokyoung were about 78%, 18% and 9.6%, respectively. Their haploid regeneration ranged from 7.6~12.9% and cv. Kwangpyeongok showed highest regeneration followed by cvs. Gangdaok and Gangilok. Analysis of variance for seed set and embryo formation showed highly significant effects of wheat parents and maize pollinators, whereas their interaction effect was only significant for seed set. The effect of maize genotypes on these traits was greater than that of wheat genotypes. Consequently, cvs. Kwangpyeongok, Gangdaok and Gangilok were found to be better pollen donors among the genotypes tested in wheat x maize hybridization for wheat hybrid production.

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• Improvement of Selection Efficiency of Haploid Maize Seeds Using Fluorescence Imaging
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• Effect of In Vitro Antioxidant Properties and Extract of Corn Husk on Serum Lipids in Mice
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