• 한국작물학회지
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• 제36권4호
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• pp.305-309
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• 1991

종자순도 유지를 위한 기초자료로 활용코자 콤바인 수확시의 탈립종실이 익년 본답재배양식별 출현정도 및 생육특성을 정상재배벼와 비교검토 한 결과를 요약하면 다음과 같다. 1. 콤바인 수확시 품종별 탈립정도는 삼강벼가 49.5kg/10a로서 낙동벼의 27.8kg/10a보다 현저히 많았으나 탈립종자의 월동후 발아율은 오히려 낙동벼가 훨씬 높았다. 2. 이형주출현율 및 종자혼입율은 재배양식간에는 직파재배가 이앙재배보다, 그리고 품종별로는 일반형품종이 통일형품종보다 높은 경향이였다. 3. 이형주의 생육은 공시품종 모두 천립종을 제외한 간장, 주당수수, 수당입수 및 등숙율등 대부분의 형질들이 정상재배벼에 비하여 저하하는 경향이 었다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.193-193
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• 2022

Cowpea(Vigna unguiculata L. Walp) has a low fat and protein content and a relatively high starch content, so it is mainly used in various ways for song-pyeon sediment, rice-cake paste, and porridge. In Yeonggwang-gun, Jeollanam-do, cowpea for seed production is being cultivated for the localization of raw material for Rice cake with ramie leave. A cowpea variety 'Jang-Alchan' was improved from the cross between IT145373 and IT145391 at the JARES in 2019. 'Jang-alchan' has an erect plant with an intermediate plant habit, light purple-colored corolla, and heart-shaped leaflets. 'Jang-alchan' has an orange-yellow seed seed-surface of faint luster, and brown and straight pods when matured. The stem length of 'Jang-alchan' was 48cm, 9cm longer than that of the control cultivar 'Okdang' and the 100-seed weight was 14.1g. The weight ratio of the seed coat for the entire seed was 11.2%, which was 0.2%p lower than that of the control cultivar. Field resistance of 'Jang-alchan' to leaf and systemic diseases was similar to that of the control cultivar. Is field resistance of 'Jang-alchan' to lodging was slightly lower than that of the control cultivar. The average yield of 'Jang-alchan' was 1.85ton per hectare, which was 14% higher than that of the control cultivar 'Okdang', 'Jang-Alchan' does not require the installation of an espalier-net and is taller than the existing supplied 'Okdang', so it can be harvested by combine harvesting. In addition, it is expected to contribute to the localization of raw material grains for regional specialties as it can be cultivated over a large area.

• 한국작물학회지
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• 제54권1호
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• pp.7-12
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• 2009

녹두는 생리적 특성과 재배지역의 기상조건 등에 따라 여러 번 수확해야한다. 한국에서는 일반적으로 6월에 파종하여 $3{\sim}4$회 가량 수확하므로 녹두 재배면적이 급격히 감소하고 있다. 따라서 한국 남부지역의 기상조건에 맞는 기계수확 재배기술을 개발하고자 본 연구를 수행하였다. 남부지역에서 기계수확을 위한 최적 파종기는 7월 20일 경 이었다. 7월 15일 경에 파종하였을 때는 2회 수확해야 하므로 기계수확이 불가능하였다. 7월 25일 이후 파종하였을 때는 기계수확이 가능하였으나 성숙기간이 길어지고 수량이 적었다. 그러므로 한국에서는 남부지역 7월 20일 기준으로 중부지역은 이전에 남부해안지역은 이후에 파종하면 녹두 기계수확이 가능할 것으로 보아진다. 한국에 가장 많이 보급된 금성녹두와 어울녹두 중에 어울녹두가 기계수확 재배에 적합한 품종이었다. 즉 어울녹두는 금성녹두에 비해 경장이 길고 착협고가 높아 기계수확에 유리할 뿐만 아니라 수량이 많았다.

• 한국초지조사료학회지
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• 제2권1호
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• pp.26-30
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• 1980

• Journal of Biosystems Engineering
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• 제19권2호
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• pp.91-98
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• 1994

Planting, transplanting, and harvesting are important processes for the successful production of farm products in Korea because those require the high labor intensity during limitted period. Recently, many researches of using automatic control with a microcomputer are carried in the agricultural field, but are not much spread to the seeder development. Automatic sowing technology would be much attractive if there was a way to assure that each seed was count accurately in the seed metering device. Thus, an automatic seed metering device was designed and constructed to be controlled by microcomputer. This device could be improved in not only counting the number of seeds in but also sowing seeds between row spacings. Automatic seed metering device consisted of conveyor belt and temporary storage device. Performance of seed metering device depends on the apparatus including sensor, stepping motor and DC-solenoid. Research contents and results are summarized as follows. 1. The seed metering device involving seed hopper, sorter and temporary storage device was designed and constructed. 2. A seed counting system with six photo electric sensors, designed and built for this project, was adequate for tranferring and counting seeds accurately. 3. Operating algorithm for stepping motor and photo electric DC-solenoid was developed. The Seed metering device proved to be a smooth and accurate operating device using the algorithm. 4. The performance of second prototype metering device was examined with five kinds of seeds ; mung beans, red beans, white beans, black beans and corn to transfer and count the seeds. The error ratio of seed metering was less than 3.5%.

• 한국약용작물학회지
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• 제9권4호
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• pp.265-268
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• 2001

황기 종자의 발아환경, 저장방법 및 저장기간에 따른 발아율 등을 알아보고자 실험한 결과는 다음과 같다. 1. 황기 종자의 발아에 적합한 온도는 ${20{\sim}25^{\circ}C}$였으며, 광조건이나 암조건 모두 발아가 양호하여 광무관발아(光無關發芽) 종자인 것으로 나타났다. 2. 발아율은 1년생과 2년생 식물, 그리고 채종시기별로 차이가 없었다. 3. $-20^{\circ}C$와 $-4^{\circ}C$에 저장한 종자는 15개월까지 발아율이 80%이상이었으나 $4^{\circ}C$와 실온에 저장할 때는 4개월 이후부터 발아율이 낮아졌다. 4. 실온에서 4개월 저장한 종자는 발아세가 80% 이상이었으나 16개월 저장할 때는 57%, 28개월 저장시는 23%이었으며 발아기간도 40일 이상 길었다.

• 한국환경과학회지
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• 제24권12호
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• pp.1673-1679
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• 2015

This study was conducted to investigate the effects of fruit set internode on the germination of watermelon seeds. Generally fruits setted in higher than 20 internode were high percent of germination, fruit setted in low internode(5-10) is low. The higher fruit-set internode, fruit weight was significantly increased, but 1,000 seed weight was decreased the more fruit set internode. However number of seed was about 300 seeds irrespective of fruit-set internode. Investigating viability of seed by BP test, general percent germination was recorded highest at 5 flower cluster above 20 internode of fruit-set internode. In contrast, condition of fruit setted on 3, 4, 6 flower cluster were high percent of germination, regarded as unnormal germination not to be as normal seedling by 2~3%. Seed harvested at 5 flower-cluster had high viability on hypocotyl height and diameter of seedling through early growth test, but were not significant. Therefore 5 flower-cluster was optimum fruit-set internode to obtain high-quality seed.

• 한국작물학회지
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• 제44권3호
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• pp.221-224
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• 1999

A field experiment was carried out to observe the weed control effects of vetch and to evaluate vetch characteristics on clay loam soil in no-till direct-sown rice-vetch cropping systems. The effects of weed control, forage productivity, and N content of vetch plants were investigated. With the progress of plant growth, density of Chinese milk vetch (Astragalus sinicus L.) gradually decreased, but densities of foxtail and other weeds decreased steeply due to the depression by the over-shaded vetch canopy in a no-till direct-sown rice-vetch cropping paddy field. The vetch density in tillage systems was lower than in notillage cropping systems. Lower vetch density occurred with an increase in foxtail density and other weeds. Weed control effect increased by the progress of vetch growth, which indicated that the vetch canopy over-shaded the weeds. Vetch straw was degraded rapidly submergence after with water at the time of wet sowing of rice. Early harvesting of vetch seed resulted in lower seed germination. To acquire enough seedlings without re-sowing, the harvesting of seed should be delayed at least 28 days after the flowering stage in order to ensure the vetch population is sustainable in a no-till direct-sown rice-vetch cropping system. In order to improve the survival of vetch plants, vetch seeds should germinate from the heading .stage to before the full-ripening stage of rice plants. To enhance the percent of over-wintering survival, vetch seeds should germinate no later than the end of October in southern Korea. The dry weight of vetch plants increased with the progress of vetch growth until the flowering stage but N content decreased for 30 days from before the flowering stage (2.9%) until the ripening stage (1.8%). We concluded that Chinese milk vetch could have an effect on weed control before the flowering stage, sustainability without re-sowing of seed annually, and effective green manure for rice pre-crop in no-till direct-sown rice-vetch relay cropping systems.

• 한국약용작물학회지
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• 제16권2호
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• pp.118-123
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• 2008

1996년부터 2002년까지 7년간 국내 35진역에서 수집한 재래종 896개체를 대상으로 수형, 재배적응성과 관련한 생육특성을 조사하고 1차 선발된 계통을 다시 생장량 및 내병성등을 기준으로 2차 선발을 하여 총 34개통을 선발하여 가시오갈피 종자생산용 계통을 육성하였다. 종자생산용 가시오갈피 품종육성을 위하여 34계통에 대한 개화기 수정 결실특성을 집중적으로 검정하여 총 3조합 6계통을 선발하였다. 이들 3조합 6계통은 생육특성과 수분 결실능력의 연차가 변이검정을 수행하여 최종적으로 수분수용 수그루 및 채종수용 암그루를 각각 1계통씩 선발하여 종자생산용 가시오갈피 품종으로 선발하였다. 최종 선발된 수그루 '천수'는 활성화분비율이 높고 주산형화서수가 많아 수분수로 접합하며 연평균 신초발생수가 많은 등 생육이 우수한 것이 특징적이고 개화기가 7월 1일로 다소 늦어 이루어지는 개체를 선발해야 하는 것을 유의해야 한다. 최종선발된 암그루 '미수'는 전엽기가 매우 느린 편이며 신초발 생수가 많고 생육이 양호하며, 열매 수확량이 7년생 기준으로 1주당 1.5kg로 높은 편이다. 병해 저항성이 높고 채종포 조성에 적합한 품종으로 판단되었다.

• 방사선산업학회지
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• 제17권2호
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• pp.199-207
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• 2023

Since seeds can be directly used as food resources as well as for crop cultivation or preservation of genetic resources, it is essential to develop high-quality seed processing technology to increase agricultural productivity. Seed treatment means processing technologies of seeds through physical or chemical treatment processes from after harvesting seeds to before sowing of seeds to improve germination and growth rate, durability, and immunity, etc. Since chemical seed treatment technology using pesticides or plant growth regulators has problems of environmental pollution and human toxicity, it is desired to develop an alternative technology. As a physical seed treatment method, various technologies such as ionizing radiation, plasma, microwave, and magnetic field are being developed, and some of them are being used practically. In this paper, I will summarize the mechanism of seed priming and disinfection, and the advantages and disadvantages of application, focusing on these physical seed treatment methods. Low dose or moderate intensity ionizing radiation, microwave, low-temperature plasma, and magnetic field treatments often promoted seed germination and seedling growth. However, effective removal of direct seed pathogens at these treatment intensities appears to be difficult. And it has been shown that relatively high-dose electron beam treatment using low-energy electron beams kills microorganisms on the seed surface and hull layer while not damaging the inner tissue of the seed, and is also effectively used for seed treatment on a commercial scale. In order to put the physical seed treatment technology to practical use in Korea, it is necessary to develop an economical scale treatment device along with the development of individual treatment technology to each crop.