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최달호,장영석,권병선,신종섭 한국자원식물학회 2000 한국자원식물학회 학술심포지엄 Vol.2000 No.-
To determine the optimum sowing date and nursery period in Alisma piantago in the southern area of Korea, Alisma plantago local cultivar was grown under three different sowing dates and nursery periods. The plant height, leaf width and leaf length at the area sown on the seedbed in June 30 and conducted the growing seedling in 30 days is 12.1cm, 2.5cm and 3.1cm respectively and it shows tess decrease than that of plant height, leaf width and leaf length with 12.3cm, 2.6cm and 3.2cm respectively which was sown on the seedbed in June 20 and carried out the growing seedling in 30 days, and it also shows less decrease than that of plant height, leaf width and leaf length with 15.2cm, 3.1cm and 5.2cm respectively at the area sown on the seedbed in July 10 and condected the growing seedling in the same date. The stem length, number of stems and diameter of root at the area sown on the seedbed in June 30 and conducted the growing seedling in 30 days is 31cm, 11 and 3.7cm respectively and it shows more increase than that of stem length, number of stem and diameter of and on the other hand shows tess decrease than that of stem length, number of stems and diameter of root with 30cm, 10cm, 35cm respectively which was sown on the seedbed in 30 days, and on the other hand shows less decrease than that of stem length, number of stems and diameter of root with 32cm,13cm,3.9cm respectively at the area sown on the seedbed in July 10 and conducted the growing seedling in the same date, The fresh yield of roots at the area sown on the seedbed in June 30 and conducted the growing seedling in 30 days is 431.4Kg/10a and it shows more increase of 26.9Kg than that of fresh yield of root with 410.59g110a which was sown on the seedbed in lune 20an4 carried out the growing seedling in 30 days, and it also shows more increase of 7Kg than that of fresh yield of root with 430.4Kg/10a at the area sown on the seedbed in July 10 and conducted the growing seedling in the same date. The dry yield of
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파종기 및 육묘기간이 단작택사의 생육 및 수량에 미치는 영향
장영석,최달호,권병선,신종섭 한국자원식물학회 2000 한국자원식물학회 학술심포지엄 Vol.2000 No.-
According to the research of the cultivation result on the spot farmers for 5 years in order to investigate its cultivation conditions and problems of Lycium chinense Mill, the development of the variety with early mature, pest tolerance, and high yielding is urgent and it is call for the development of rooted cutting cultivation by testing of bed soil, growth regulator and cutting times. The development of cultivation method with planting year, planting density, supplementary period and amounts of supplementary of Lycium chinense Mill planted in growing field are required and for the disease and the effective control of disease and insect pest resistance is needed by auxotrophic fertilizing and organic agricultural method, met by agricultural chemicals.
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Ethrel처리가 맥후작 면화의 숙기단축과 수량 및 섬유품질에 미치는 영향
이정일,손응룡,최달호,Jung-Il Lee,Eung-Ryong Son,Dal-Ho Choi 한국작물학회 1975 한국작물학회지 Vol.- No.20
맥후작 면화재배에서 숙기를 단축하고 적채면수량을 증가시키고자 본실험을 실시하였든바 그 결과를 요약하면 다음과 같다. 1) 맥후작 면화재배에서 10월상순 Ethrel를 산포하면 적채면화율이 무처리구의 38%에 비하여 2,000ppm처리구의 그것은 93%였으며 개서는 20일이나 앞당겨 졌다. 2) 수량에서는 무처리구에 비하여 Ethrel처리구가 15%∼38%까지 증수되었다. 3) 한편 섬유장과 섬유장력에 있어서는 처리구는 무처리구와 차이 없었으나 적채면과 목채면간에는 무처리구 및 Ethrel처리구에 있어서 각각 평균 1.3mm 정도 목채면이 더 짧았다. 4) 1삭중과 종자 100립중에서도 Ethrel처리로 인한 차이는 전혀 없었으나 적채면과 목채면간에서는 목채면이 훨씬 가벼웠다. 5) Ethrel로 처리된 적채면종자는 무처리의 그것에 비하여 발아가 촉진되었다. 그러나 목채면종자의 발아율은 철된것이나 안된것이나 바슷했다. 6) 이상의 결과로서 맥후작면화재배에 있어서 만숙장섬유품종을 도입하여도 Ethrel를 적용하면 적채면수량이 더욱 증가된다고 본다. To achieve self-sufficiency in good production, cotton should be grown after barley in the southern part of Korea. But, this cropping system reduces cotton yields and fiber qualities in the current leading cotton varieties because of the short frost-free growth period. Ethrel-treated plots shortened the time to open boll by about 20days, increased the percentage of open bolls before the first frost from 38% to 93% and increased yield by 15-38%. There are not significant differences in staple length, tensile strength of the fiber, single bollweight, 100 seeds weight and germination percentage of the seeds between Ethrel-treated and untreated plots. Ethrel should be recommended to the farmers growing cotton after barley harvest.
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