벼 무논골뿌림裁培時 播種期가 生育 및 收量에 미치는 影響

池在浚,朴裁成,朴成圭,李尙榮,洪性澤,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This study was carried out to determine the optimum seeding date for the rice(Oryza sativa L.) cultivation of the puddled-soil drill seeding, which is one of the efficient labor saving cultural methods, at the central part of Korea. Namweonbyeo, Anjungbyeo and Ilpumbyeo were seeded on four dates from April 10 to May 25, 1994 with the 15 day interval in the paddy field. In order to examine the adequate seeding date, the growth characters, yield components and yields were investigated. The coleoptile emerged 1 or 2 days earlier in Namweonbyeo than in Anjungbyeo and Ilpumbyeo, and later seeding resulted earlier coleoptile emergence. The number of seedling stands were higher in the order of Namweonbyeo, Anjungbyeo and Ilpumbyeo, was increased at the later seeding and was 81 to 88 seedlings on April 10 seeding. The plant height, number of leaves, number of tillers and dry weight at 50 days after seeding of all three cultivars were higher at later seeding. Leaf area index(LAI) were higher in the order of Ilpumbyeo, Anjungbyeo and Namweonbyeo. LAIs at the heading stage, at 30 days after heading and at 30 days before heading were higher in that order. The dry matter weight at the 30 days before heading was higher in sheath and stem than that in leaf blade, while, at heading stage, it was higher in the order of sheath and stem, leaf blade and panicle. On the other hand, at 30 days after heading, it was higher in the order of panicle, sheath and stem and leaf blade. The number of panicles per m2 was greater in the order of Ilpumbyeo, Anjungbyeo and Namweonbyeo. The ratio of ripened grain was reduced as the later seeding date. Its ratio was higher in Namweonbyeo than in Anjungbyeo and Ilpumbyeo. Yield of Namweonbyeo was lower than those of Anjungbyeo and Ilpumbyeo. Yield was decreased as the seeding date was delayed. Namweonbyeo showed the highest yield at seeding on May 10, while Anjungbyeo and Ilpumbyeo showed at seeding on April 25. The seeding date was negatively correlated with the ratio of ripened grain. while the number of seedling stands was positively correlated with the number of panicle per m2.

벼 무논골뿌림재배시 잎모수가 생육 수량에 미치는 영향

홍성택, 박재성, 박성규, 이상영, 지재준, 손석용 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

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벼 건답직파재배시 파종기가 건물생산 및 수량에 미치는 영향

박재성, 박성규, 이상영, 홍성택, 지재준, 조동삼, 손석용 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

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平地와 高冷地地域에 적합한 백합 抑制裁培用 品種選拔과 신나팔나리의 端境期生産에 관하여

金泰重,尹汰,池在浚,趙鎭泰,白基燁 한국화훼연구회 1994 화훼연구 Vol.3 No.1

This experiment was performed to select suitable cultivar for the production of off-season with Asiatic hybrids 'Avignon', 'Apeldoorn', 'Connecticut King', 'Snow Star' and 'Yellow Giant' and Oriental hybrids, 'Stargazer' and 'Casa Blanca' and L. longiflorum 'Gelria', and L. × formolongi 'White Horn' in plainland and highland of 450 meters above the sea level, and investigated the characteristics of plant growth flowering. The results obtained were as follow : 1.In retarding culture in plainland, plant height, percent of folwering, productivity of cut flower per 10a and marketability were decreased in 'Snow Star', 'Stargazer' and 'Connecticut King' whereas those of 'Avignon', 'Apeldoorn' and 'Yellow Giant' were increased and assumed as suitable cultivars for plainland cultivation. 2.In highland culture, 'Gelria' and 'Stargazer' were produced high quality of marketable cut flowers and increased plant height and productivity compared to the culture of plainland. In 'White Horn', seed germination was poor as 55% and decreased marketability, but plant height was significantly increased as average 128cm compared to those of other cultivars. 3.Required days for flowering was varied among species and/or cultivars and between cultivation area. Asiatic hybrids required 48 to 60 days, and 92 to 105 days for Oriental hybrids in plainland cultivation. In highland cultivation, 'White Horn' required 89 to 147 days for flowering with not uniformity among plants whereas 'Gelria' and 'Stargazer' were relatively early flowered after 71 to 76 days in planting. 4.With summarize above results, suitable cultivars for the production of off-season in plainland were Asiatic hybrids such as 'Avignon', 'Apeldoorn' and 'Yellow Giant' and 'Gelria' and 'Stargazer' for highland cultivation. Applicable planting date for the cut flower production of off-season, early-or mid-October, in Asiatic hybrids, Oriental hybrids and 'White Horn' was middle in August, early in July and early in June, respectively.

엽록소 측정기를 이용한 마늘의 질소 추비량 추정

신현만(Hyun Man Shin),지재준(Jae Jun Ji),최원일(Won Il Choi),김태중(Tae Jung Kim),김재영(Jae Young Kim) 한국원예학회 2005 한국원예학회 학술발표요지 Vol.2005 No.5

마늘 상품성 및 수량성 향상을 위한 피복재료 선발

신현만(Hyun Man Shin),지재준(Jae Jun Ji),최원일(Won Il Choi),송인규(In Gyu Song),김재영(Jae Young Kim) 한국원예학회 2004 한국원예학회 학술발표요지 Vol.2004 No.10

Effects of Temperature and Moisture on the Survival of Colletotrichum acutatum, the Causal Agent of Pepper Anthracnose in Soil and Pepper Fruit Debris

강범관,김주형,이경희,임상철,지재준,이종원,김흥태 한국식물병리학회 2009 Plant Pathology Journal Vol.25 No.2

The survival of Colletotrichum acutatum was investigated in soil, infected fruits, and infected fruit debris incorporated into soil at several temperatures with different soil moisture levels. Samples were examined at 2-week intervals for 18 weeks to determine the survival of the pathogen based on the number of colony forming unit (CFU) of C. acutatum recovered on a semi-selective medium. C. acutatum conidia survived in both sterile and non-sterile soil at 4 and 10oC for 18 weeks. If infected pepper fruits were completely dried, C. acutatum survived for 18 weeks at temperature from 4 to 20oC. Soil temperature and moisture affected the survival of C. acutatum in infected fruit debris incorporated into soil after air-drying. The effect of soil moisture on survival was weaker at low temperatures than at high temperatures. For up to 16 weeks, conidia were recovered from fruit debris in soil that had been kept at 4 to 20oC and below 6% soil moisture. Conidia were recovered from fields until approximately 6 months after pepper fruits were harvested. Using PCR with species-specific primers and a pathogenicity test, we identified conidia recovered from soil and infected fruit from both the laboratory and field as C. acutatum and as the primary inoculum causing pepper anthracnose.

벼 무논골뿌림栽培時 播種期 및 立毛數가 生育 및 收量에 미치는 影響

洪性澤,朴栽成,朴成圭,李尙榮,池在浚,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This study was conducted to establish the cultural techniques of the puddled-soil drill seeding of race (Oryza sativa L.), which is one of the efficient labor saving cultural methods, in the central part of Korea. Seoanbyeo was seeded at three times from April 10 to May 20 with the 20 day interval in 1994. The number of seedling stands per m2 at each seeding date were 50, 90, 130 and 170. The tillering characteristics, lodging characters, dry matter production, yield components and yield were investigated. The number of days to the maximum tillering stage was reduced at the later seeding date. It was 70, 55 and 25 days in seedings on April 10, April 30 and May 20, respectively. The critical effective tillering stage was also shortened at the delayed seeding. The higher the number of seedling stands was, the higher number of tillers, the shorter duration to the maximum tillering stage and the earlier critical effective tillering stage were resulted. The number of tillers was higher at the earlier seeding date. The number of tillers was increased in the order of 50, 90, 130 and 170 seedling stands per m2. The ratios of effective tillers were 53, 61 and 63% at seeding on April 10, April 30 and May 20, respectively. The ratios were not significantly different at April 10. But the ratios in seeding on April 30 and May 20 were reduced as the number of seedling stands was increased. The weight of stem base related to lodging was the highest with 2.01g/10 plants in the optimum seeding on April 30, while it was 1.59g/10 plants in the late seeding on May 20. It was also decreased as the number of seedling stands was increased. The dry weights at 30 days before the heading stage were increased at the later seeding, while the dry weight at the heading stage was the highest at seeding on April 30 which is considered as the adequate seeding time. The dry weights at 30 days before the heading stage were increased as the number of seedling stands was increased and they were increased up to 130 seedling stands per m2 at the heading stage. The length of panicle exsertion was shortened at the later seeding. The length of panicle exsertion was increased up to 130 seedling stands. but it was shorter at 170 seedling stands. The heading dates were later at seeding on April 30 and May 20 than at seeding on April 10. They were not remarkedly different among seeding dates at 50 seedling stands, it was earlier at the higher number of seedling stands over 90. The number of spikelets per panicle was decreased at the higher number of seedling stands. The ratio of ripened grains was higher at earlier seeding than at later seeding. It was not significantly different among the number of seedling stands at the same seeding time. Yields at seeding on April 30, April 10 and May 20 were 644, 624 and 551kg/10a, respectively. The seeding on April 30, the optimum seeding time, resulted the highest yield. Rice quality was decreased due to the increase of the green kerneled rice as the seeding date was delayed.

벼 乾沓直播栽培時 播種期가 乾物生産에 미치는 影響

朴栽成,朴成圭,李尙榮,洪性澤,池在浚,趙東三,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This experiment was carried out to obtain indispensable information to establish comprehensive cultural method of rice in direct seeding on dry paddy at Chungbuk Agricultural Research and Extension Services. Effect of seeding date on dry matter production, yield components and yield were studied. Seeding on May 5 ensured the highest maximum number of tillers, while transplanting on May 20 gave the highest rate of effective tillers. Number of effective tillers was greater in the order of Hwajinbyeo, Hwaseongbyeo, Daekwanbyeo. Lengths of upper three leaves were increased at later seeding, but leaf width was not affected by seeding date. Ratio of leaf blade weight was higher in earlier seeding during 30 days before heading but was higher in later seeding during 30 days after seeding, and was higher in the order of Hwajinbyeo, Hwaseongbyeo, Daekwanbyeo. CGR, RGR and NAR were not significantly different among seeding dates during 30 days before heading, but were lower in later seeding during 30 days after seeding. LAR was not affected by seeding date during 30 days before heading, but was higher at seeding on May 5 in heading date and during 30 days after heading. Dry weight of leaf blade, leaf sheath and culm, ear and total biomass during 30 days before heading and heading were highest in May 5 seeding. Daekwanbyeo and Hwaseongbyeo in May 5 seeding and Hwajinbyeo in April 20 seeding brought the highest yield with greater number of spikelets, higher ripening ratio and greater 1,000 grain weight, and harvest index and grain/straw ratio were Increased at earlier seeding. There were significantly positive correlations between number of panicles per m2 and LAI at 30 days before heading and heading, dry matter weight of leaf blade and total mass at heading. On the other hand, there were significantly negative correlations between seeding date and ripened grain ratio. 1,000 grain weight and yield, and between 1,000 grain weight and leaf length of 2nd, respectively.

재배 방식에 따른 고추의 항산화 및 암세포 증식억제 활성변화

윤재민(Jaemin Yoon),지재준(Ji Jae Jun),임상철(Sang Cheol Lim),이경희(Kyeong Hee Lee),김흥태(Heung-Tae Kim),정헌상(Heon-Sang Jeong),이준수(Junsoo Lee) 한국식품영양과학회 2010 한국식품영양과학회지 Vol.39 No.5

본 연구에서는 재배 방식(비가림과 노지재배)에 따른 대표적인 고추 11개 품종 간의 일부 기능성 성분과 항산화 및 암세포 증식억제 활성의 차이를 알아보고자 하였다. 기능성 성분은 capsaicinoids, polyphenol 및 vitamin C를 분석하였다. 추출물의 항산화력은 ABTS radical 제거능, 환원력, 금속이온 제거능을 이용해 평가하였으며 암세포 증식 억제능은 유방암, 대장암 및 폐암 세포주를 이용하였다. 노지 재배한 11개 품종의 capsaicin, dihydrocapsaicin, polyphenolics 및 vitamin C 함량은 각각 0.0~268.3 ㎎/100 g, 0~55.1 ㎎/100 g, 635~878 ㎎/100 g 및 4.1~8.2 ㎎/g으로 품종 간 차이를 보였으나 재배방식 간의 유의적인 차이는 보이지 않았다. 기능성 성분 결과와 비슷하게, 품종에 따른 활성의 차이는 있었으나 재배 방식 간 활성에 대한 유의적인 차이는 보이지 않았다. 본 연구 결과는 재배 방식과 고추 품종에 대한 일부 기능성 성분과 활성에 대한 기초자료를 제공하고 있다고 생각한다. The purpose of this study was to evaluate selected functional compounds and biological activities of 11 different pepper cultivars grown in rain-shelter and field. The selected compounds were capsaicinoids, polyphenolic and vitamin C. Antioxidant activities were measured by ABTS radical scavenging activity, reducing power and metal chelating effect. Antiproliferative activity was assessed by the measurement of the inhibition of HCT116, MCF 7 and NCI-H460 cancer cell proliferation. The contents of capsaicin, dihydrocapsaicin, polyphenolics and vitamin C from 11 cultivars grown in field were 0.0~268.3 ㎎/100 g, 0~55.1 ㎎/100 g, 635~878 ㎎/100 g and 4.1~8.2 ㎎/g, respectively. There were significant differences in the content of selected compounds among the cultivars, although no significant difference in rain-shelter and field was detected. Similar to the results from the selected compounds, there was no difference in antioxidant and antiproliferative activities between rain-shelter and field. This research provides basic information on functional compounds and biological activity of cultivation methods and pepper cultivars.