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온도ㆍ토양수분 포텐셜 및 삼투처리가 옥수수와 대두의 발아 및 묘신장에 미치는 영향
성락춘,해리 씨 마이너,박근용,Seong, Rak-Chun,Minor, Harry C.,Park, Keun-Yong 한국작물학회 1986 한국작물학회지 Vol.31 No.1
옥수수품종 (Dekalb XL 72B)과 대두품종 ( Willi -ams)의 발아와 묘신장을 두 온도, 세 토양수분 포텐셜 및 네 polyethylene glycol(PEG) 8,000 수준에서 측정하였다. 각 품종의 20처리종자를 0.2% Thiram에 처리하여 가비중 1.20으로 압축된 살균사양토에 2.0cm 깊이로 파종 분할구배치법 사반복으로 실시하였다. 1. PEG로 한 삼투처리는 고온에서나 저토양수분포텐셜 조건에서 효과가 거의 없었다. 2. 대두는 옥수수보다 높은 묘수분함량을 보였고 두 작물 모두 토양수분 포텐셜과 온도가 증가할수록 수분흡수가 증가되었다. 3. 옥수수의 묘장이 35$^{\circ}C$에서는 대두보다 길었으나 15$^{\circ}C$에서는 짧았다. 4. 옥수수의 건물중은 35$^{\circ}C$에서 감소되었고 대두의 건물중은 토양수분 포텐셜이 증가할수록 감소되었다.
Kil Woong Chung(鄭吉雄),Byung Hee Hong(洪丙憙),Rak Chun Seong(成樂春),Jung Il Lee(李正日) 한국육종학회 1992 한국육종학회지 Vol.24 No.1
This study was conducted to obtain basic information for breeding materials on the chemical compositions of soybean[Glycine max (L.) Merrill] seeds. Seed dry weight, protein content, oil content, fatty acid composition, soluble sugar content and starch content were analyzed to 53 collected summer type soybean varieties. Seed dry weights of summer type soybean varieties were ranged 10.5-25.6g and protein contents of those were ranged 33.6-45.0%. Oil contents of the varieties were ranged 12.1-18.0%, and linoleic and oleic acids of those were major components in the fatty acids. Sugar contents were ranged 6.1-10.0%, and starch contents ranged 3.1-5.6% in summer type soybean varieties. Significant correlation coefficients were found among seed dry weight and chemical compositions of summer type soybean varieties.
홍은희,정해준,성락춘 한국작물학회 1988 한국작물학회지 Vol.33 No.1
Germination and seedling elongation of soybeans [Glycine max. (L.) Merr., cults. Bangsakong, Hill, Paldalkong, Danyupkong, Baegwun-kong, Kwangkyokong, Changyupkong and Hwangkeumkong] were measured at two temperatures (15 and 30℃) and four polyethylene olv~~l 10, 000 (FEG) solutions (0, 20, 30 and 35g/100g H₂O). Adjustments of PEG solution were based on water potentials of 0.0, -0.5, -1.1 and -1.5 ㎫ at room temperature. Observations were made at 3, fi, 9 and 12 days for 15℃ and 1, 2, 3 and 4 days for 30℃. Fifteen seeds of each cultivar were placed on Whatman No. 1 (9cm) filter paper in plastic pertridishes, and adjusted to 15 ㎖ of the proper PEG solution supplemented with 0.2 percent thiram using automatic syringe. The dishes were covered with cap. The seeds were germinated at a continuous temperature of 15 or 30℃ under dark conditions for programmed period. Seedting moisture coiatent and seedling length of eight soybean cultivars decreased as PEG concentration increased both at 15 and 30℃. Cuftivar differences in seedling moisture content and seedling length were found among eight soybean cultivars at temperatures of 15 and 30℃. Larger sized cultivar absorbed more moisture than samller sized cultivar. However, reverse results were obtained on the seedling moisture content of each of eight soybean cultivrars. Cultiver Hitl and Paldalkong showed greater seedling length than the other six cultivars from 20 to 30g/100g water of PEG concentrations both at 15 and 30℃. The results of this study indicated that germination test of soybean seeds in aqueous solutions of PEG has potential for screening soybean cultivars for improved emergence during moisture stress.