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종자피복기의 피복통 회전속도가 피복종자의 물리적 특성에 미치는 영향
허삼남(Sam Nam Hur),이성운(Cheng Yun Li),박천수(Chun Soo Park),장박(Bo Zhang),박홍석(Hong Suk Park) 한국초지조사료학회 2008 한국초지조사료학회지 Vol.28 No.1
본 실험은 표준화된 피복종자를 생산하기 위하여 피복통의 회전속도를 20, 30, 40, 45, 55, 60 rpm으로 하여 소형 피복통으로 레드클로버와 톨페스큐 종자를 피복하였다. 고형물질로는 vermiculite를 사용하였고 접착제는 polyvinyl alcohol을 사용하였다. 피복 후 통에서 회수된 단립 피복종자 무게, 서로 달라붙어 덩어리 진피복종자 무게, 피복되지 않고 회수된 미 피복물질 무게, 충격에 의한 피복층 탈락성 및 피복종자의 백립중 등을 조사하여 피복종자의 물리적 특성을 평가하였으며, 이 자료를 근거로 피복효과를 종합적으로 표현하는 피복지수를 산출하였다. 레드클로버 종자는 통의 회전속도 45 rpm에서 회수된 단립 종자 무게가 제일 높았으며(p<0.01), 덩어리진 종자 수가 적고 피복물질의 탈락율이 적었으며, 피복종자의 백립중도 가장 무거웠다. 톨페스큐 종자는 피복통 회전속도 40 rpm에서 회수된 단립 종자 무게가 제일 높았으며(p<0.01), 덩어리진 종자 수가 적고 피복물질의 탈락율이 적었으며, 피복종자의 백립중도 가장 무거웠다. 통의 회전속도별 피복지수는 레드클로버는 45 rpm에서 (p<0.01), 톨페스큐는 40 rpm에서 제일 높았다 (p<0.01). 피복통의 회전속도는 피복종자의 물리적 성질에 크게 영향을 미치기 때문에 종자피복 전에 종자나 피복제에 따른 피복통 회전속도의 표준화가 필수적이라 하겠다. Using a small pilot coating pan, red clover and tall fescue seeds were coated under different rotating speed of pan (20, 30, 40, 45, 55, 60 rpm) for standardization of seed coating. Vermiculite was used as particulate matter and polyvinyl alcohol as adhesive for the coating of seeds. Coating index was calculated based on the percent singles out, percent agglomerates out, weight of particulate matter fine, percent friability, and average weight per 100 seeds to evaluate the physical characteristics of coated seeds. The coated seed of red clover under 45 rpm rotating speed of pan, was best in terms of percent singles out, percent agglomerates out, weight of fines, and average 100 seed weight. The coated seed of tall fescue under 40 rpm rotating speed of pan, showed highest percent singles out, lowest percent agglomerates out, lowest weight of fines, and heaviest average 100 seed weight. Excellent coating results were obtained with the pan speed of 45rpm for red clover and 40 rpm for tall fescue seeds. As rotatory speed of coating pan affected much to the physical characteristics of coated seeds, standardization of the speed is required before seed coating.
섬바디의 생육특성에 관한 연구 제1보 섬바디의 발아특성
허삼남,김동암,박훈 ( Sam Nam Hur,Dong Am Kim,Hun Park . ) 한국축산학회 1977 한국축산학회지 Vol.19 No.3
Investigations were conducted into the imbibition rates of seeds, changes of seed viability after harvest, and the effects of specific gravity of seeds and high temperature treatment on germination to shorten the period of germination after seeding. Tire results are summarized as follows: 1. The lipid content of Dystaenia takesimana was 28.65% which was much higher than that of alfalfa or orchardgrass. 2. With KOH scarification imbibition rate was increased by more than two times and the optimum temperature was 20℃. 3. The percent germination was reduced gradually after harvest and rapidly after 45 days getting zero after one year. 4. The percent germination was increased by increase of the specific gravity of seeds and breeding heavier and larger seeds to improve seedling growth is suggested. 5. With high temperature treatment of the seeds at 40℃ in pregermination, the percent germination was increased from 44.3 to 91.1%. 6. It would appear that the slow germination of Dystaenia takesianana may be due to poor mobilization of seed reserves, an innate character of the seed.
삼투압 조절이 불량환경하에서의 Italian ryegrass 와 수수의 생산성에 미치는 영향
허삼남 ( S . N . Hur ) 한국축산학회 1991 한국축산학회지 Vol.33 No.1
Seeds of Italian ryegrass and sorghum were osmoconditioned with 20% PEG (polyethylene glycol-8000) solution for two days at 10℃. Effects of osmoconditioning on the growth of Italian ryegrass and sorghum in suboptimal conditions were measured. The results obtained are summarized as follows; l. Seedlings of Italian ryegrass were severely affected by drought stress, while sorghum seedlings got stress under humid tension. Osmoconditioned seeds of Italian ryegrass showed good establishment and increased dry matter yield by four or six percentages and PEG treated sorghum yielded 4-16% more than non-treated. 2. Osmoconditioned sorghum plants were accelerated in growth and yielded 16% more under chilling condition with no effect of osmoconditioning in Italian ryegrass. 3. Italian ryegrass showed a strikingly superior salt stress-resistance by osmoconditioning yielding 32% more dry matter than non-treatment under 3 mmhos/cm salinity level.