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청색과 황색 해가림이 인삼의 생육 및 진세노사이드 함량에 미치는 영향
김금숙,이민정,현동윤,박춘근,박호기,차선우,이성우 한국약용작물학회 2007 한국약용작물학회지 Vol.15 No.3
청색과 황색의 4중직 폴리에틸렌 차광망을 해가림 피복물로 사용하여 해가림 색상이 4년생 인삼의 생육 및 진세노사이드 함량에 미치는 영향을 구명하고자 시험한 결과는 다음과 같다. 1. 청색 차광망의 spectral irradiance는 498nm에서, 황색차광망은 606nm에서 최고를 보여 색상에 따라 광질은 뚜렷한 차이를 보였다. 2. 청색 차광망은 황색 차광망보다 투광량이 23% 더 많았으며,기온도 0.3 ˚C 더 높았고 여름철 투광량 증가로 인한 기온 상승으로 황색 차광망보다 지상부 생육이 억제되고 고온장해 발생이 심하였다. 3. 황색 차광망은 청색 차광망보다 엽록소 함량이 더 많고 경장 및 엽면적이 더 컸으며, 고온장해 발생율이 낮아 인삼수량은 48% 증가되었다. 4.동체부위의 총 진세노사이드 함량은 색상 간에 유의적인차이가 없었으나 지근 및 세근부위의 총 진세노사이드 함량은 청색 차광망이 황색 차광망보다 유의적인 증가를 보였다. 5. PD/PT비율은 지근부위에서만 청색 차광망이 황색 차광망보다 유의적으로 높았으며, Rb1/Rg1의 비율은 모든 부위에서 청색 차광망이 황색 차광망보다 높았으나 지근부위에서는 유의성이 없었다. Yield and ginsenoside contents of ginseng (Panax ginseng C. A. Meyer) is affected by light intensity and quality, and the color and the thickness of PE shading net when PE net is utilized for shading material. This study was carried out to investigate the effect of light quality on root yield and ginsenoside contents off-year-old ginseng by using polyethylene shading net with each blue and yellow color, Spectral irradiance under blue and yellow shading net showed the peak at 498 nm and 606 nm, respectively, which made distinct difference in light quality. Heat injury ratio of blue shading net was increased distinctly more than that of yellow shading net in summer season because of higher transmitted quantum (23%)and air temperature (0.3 ˚C) in blue shading net than those of yellow shading net. Chlorophyll content and leaf area under yellow shading net were higher than those of blue shading net, and its heat injury ratio was lower than those of blue. These effects may led to 48% higher increase of root yield under yellow shading net than that under blue shading net. The content of total ginsenoside in taproot was not significantly differed between blue and yellow shading net, while the content in lateral and fine root was significantly increased in blue shading net compared to yellow shading net. PDM ratio of blue shading net showed more significant increase in lateral root than that of yellow shading net. All of Rb1/Rg1 ratio in three parts of root under blue shading net was higher than that of yellow shading net, but there were no significant increase in the ratio of lateral root.
A Waxy Corn Hybrid with Long Ear and Lodging Resistance, "Chalok3"
차선우,문현귀,정태욱,손범영,박남규,김성국,류용환,김황기,최홍집,류인모 한국육종학회 2004 한국육종학회지 Vol.36 No.1
Chalok3, a new waxy corn hybrid was developed at the National Crop Experiment Station, RDA in 2001. It is a single cross hybrid, which was crossed between KW35 as a seed parent and KW7 as a pollen parent. Chalok3 was 73 days in days to silking and eight days later than Chalok1. Plant height of Chalok3 was 215cm and taller than that of Chalok1. Chalok3 was 4.2cm longer than Chalok1 as 20.2cm in ear length, but shorter in ear diameter. The ratio of kernel set length/ear length was 97 % and higher than other hybrids. Chalok3 was relatively resistant to Biporalis maydis (Southern leaf blight) and maize dwarf mosaic virus, and resistant to lodging. Chalok3 was compared with Chalok1 as the designation of Suwon31 at four sites for three years from 1999 to 2001. In these tests, the fresh ear weight of Chalok3 was 9.90 ton/ha and 13% higher than that of Chalok1. Chalok3 can be adapted in all over the country.
A Waxy Corn Hybrid with Early Maturity and High Yield, "Sinchalok"
차선우,문현귀,정태욱,손범영,박남규,김성국,류용환 한국육종학회 2004 한국육종학회지 Vol.36 No.1
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 hybrid to be similar to Chalok1. Sinchalok is a short-stature hybrid, of which plant height was 185cm. Sinchalok was similar to Chalok1 as 16.8cm in ear length, but larger in ear diameter. Sinchalok was relatively resistant to Biporalis maydis (Southern leaf blight) and maize dwarf mosaic virus. Lodging resistance of Sinchalok was intermediate, but more resistant than that of Chalok1. Sinchalok was compared with Chalok1 as the designation of Suwon32 at four sites for three years from 1999 to 2001. In these tests, the fresh ear weight of Sinchalok was 10.36 ton/ha and 19% higher than that of Chalok1. Sinchalok is adaptable to all over the country including early-planting culture region of the southern part of Korea.