• 한국초지조사료학회지
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• 제31권1호
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• pp.25-32
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• 2011

귀리는 단기 다수성 작물로서 잎의 비율이 높을 뿐만 아니라 가축의 기호성도 양호하며 다른 총체맥류에 비하여 파종시기의 선택폭이 넓다. 따라서 본 시험은 내한성이 강하여 중부 지방에서도 월동이 가능한 귀리 3품종과 옥수수 뒷그루 재배에 알맞은 3품종에 대하여 10월 중순 가을 파종과 3월 상순 봄 파종시 생육, 수량 및 사료가치를 비교하고자 실시하였다. 출수기는 봄 파종시 가을 파종에 비하여 평균 12일 늦었고, 품종간에는 약 8일의 차이가 있었다. 봄 파종은 가을 파종에 비하여 이삭과 잎의 비율이 감소하고 줄기가 차지하는 비율이 증가되는 경향이었다. 품종별로는 동한귀리가 다른 품종에 비하여 이삭의 비율이 높고 줄기의 비율이 낮은 경향이었다. ADF 함량은 봄파종에서 높았고, NDF 함량과 가소화 건물 함량은 가을파종에서 높았다. 가소화 건물함량은 가을 파종시 동한귀리와 스완에서, 봄 파종에서는 삼한귀리가 높았다. 삼한, 동한, 조한귀리 3품종의 생초수량이 가을 파종이 봄 파종에 비하여 높았으나 건물수량은 비슷한 경향이었다. 스완, 다크호스, 하이스피드는 봄 파종이 가을 파종에 비하여 생초수량 및 건물수량이 월등히 높았다. 품종별로는 가을 파종과 봄 파종 모두 동한귀리가 건물수량과 가소화 건물수량이 높았는데, 이는 상대적으로 많은 이삭수의 확보와 이삭이 차지하는 비율이 높았기 때문이었다.

• 한국작물학회지
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• 제33권2호
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• pp.174-181
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• 1988

하대두형 및 추대두형 콩품종에 대하여 파종기를 달리 했을 때 생육상의 차를 구명하고, 또한 건물축적양상 비교하기 위하여 1987년 천안시 안서동에 위치한 단국대 농대 실습포장에서 시험을 수행하였다. 극조반(4월 15일파종)나 그후 파종(5월 15일 및 6월 15일)에서 하ㆍ추대두형품종간 출현율의 차가 관찰되지 않아 포장에서 저온발아성의 차를 검정한다는 것은 어렵다고 판단되었고, 또한 하ㆍ추대두형간 개화일수단축정도의 차도 없었으나, 하대두형인 DN82029-3이나 ES18085-1의 조ㆍ만파기 생육일수의 차가 추대두형인 장엽콩이나 팔달콩에 비하여 크지 않아, 생육후기 고온에 의한 결실일수가 촉진되어 만파에서 추대두형에 비하여 몇가지 수량구성요소의 감소정도가 큰 것으로 나타났다. 하대두형은 추대두형에 비하여 만파에서 도장정도가 심함 것으로 관찰되었다. 하대두형인 DN82029-3이이나 추대두형인 단엽콩 및 장엽콩은 개화시 이후에도 경엽신장이 큰 폭으로 증가된 바, 개화시 이후 3품종 모두 경장이 17∼32cm가 신장되었으며, 엽면적지수도 개화시 이후 0.83∼1.53의 증가를 보여 엽의 신장이 큰 폭임을 나타내 주었다. 하대두형인 DN82029-3은 단엽콩이나 장엽콩에 비하여 49일이나 빨리 최고건물중을 나타냈으나, 절대량은 추대두형의 최고건물중의 약 50% 수준이어서 5월 15일 파종시 일장둔감형인 하대두형은 충분한 영양생장을 이루지 못한 가운데 생식생장기 간으로 접어들어 건물축적량이 크게 낮아지게 되고, 이것이 낮은 수량의 원인으로 보인다.

• 한국초지조사료학회지
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• 제12권1호
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• pp.12-18
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• 1992

본 시험은 가을철 생육기에 perennial ryegrass 5개 품종을 공시하여 생육시기별 품종에 대한 생물학적 수량(지상부중+지하부중), 지상부중(엽중+경중), 근중, 엽면종, 지상부/지하부 비솔, 경수, 근장,근장/근중 및 1 경중을 조사하였으며 시험 결과는 다음과 같다. 1. 수량구성요소는 생육이 진행됨에 따라 악화되었다. 2. 가을철 수량구성요소의 비솔은 지상부 73%, 지하부 27%였다. 3. 생물학적 수량이 많았던 품종은 Tempo, Maprima 였으며 P-2, Caliente등이 적었다. 4. 수량구성요소는 Tempr 품종에서 경중, 근중, 근장/근중, 1 경중이 많았고 Caliente 품종은 엽중, 경중,엽면종, 지상부/지하부/ 비솔, 1 경중이 적었다. 5. 조사시기별 생물학적 수량은 4~5차(10월 4일 ~10월 8일 )에 가장 높았으며, 3~4차(9월 30일~10월 4일)에 가장 낮았다. 6. 품종별 생물학적수량은 Tempo는 5~6차(10월 8일 ~10월 12일), Marprima는 1~2차(9월 22일 ~9월 26일), Manhattan, P-2, Caliente는 4~5차(10월 4일 ~10월 8일)에서 많았다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.302-302
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• 2017

This study was conducted to evaluated the effects of different sowing time(October 22, February 20, March 3, March 13, and March 23) and sowing quantities(150kg/ha, 200kg/ha, 250kg/ha, and 300kg/ha) on growth of naked oat(Avena sativa L.) cultivar(Choyang-Gwiri) at a cultivation area in Iksan, south Korea. Heading times were delayed with later sowing times. In autumn seeding(Oct. 22) the ear was headed at April 30, in spring seeding(Feb. 20, Mar. 3, Mar. 13, and Mar. 23) heading times were respectively May 14, May 14, May 15, and May 19. Heading time of spring seeding was delayed about 3 weeks than autumn seeding. Ripening times were similar trends to the heading times. In autumn seeding ears were ripened at June 7, in spring seeding each times were respectively Jun. 15, Jun. 13, Jun. 20, and Jun. 20. Ripening time of spring seeding was delayed about 2 weeks than autumn seeding. Culm length and ear length were shortened in spring seeding, but number of plants per $m^2$ were increased. Number of grains per a ear were 106 in autumn seeding, but grains per a ear in spring seeding were respectively 88, 83, 83, and 73. Weight of 1,000 grains in spring seeding was heavier than that in autumn seeding, the weights were tend to light as later seeding times. Yield of grains was declined as later seeding times, yield of in autumn seeding was 2,900kg/ha, whereas that in spring seeding was 2,180kg/ha. The highest yield of spring seeding time was in Mar. 13, before this seeding time soil surfaces were severely dried as few rain fall, so germination was poor in those seeding times. As several seeding quantities were seeding, earing and ripening times were not different. but increasing seeding quantity, culm length was lengthened and ear length was shortened, number of plants per $m^2$ were increased and grains per a ear were reduced. Yield of grains were increased more seeding quantities, yield was highest up to 250kg/ha seeding quantity.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.234-234
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• 2017

Recent abnormal weather, especially continued rainfall during sowing season causes difficulty in proper sowing of wheat and delayed sowing after November 15 is concerned about freezing damage during winter, resulting in reduction of wheat yield. To correspond government policy of crop sufficiency improvement and produce and supply raw wheat and barley steadily, expansion of cultivation area is necessary and spring sowing of wheat is required. To obtain basic information on the improvement of spring sown wheat and barley production, comparison and path coefficients analysis was conducted for yield and yield related components from autumn and spring sown wheat and barley. Path analyses were known as very useful in clarifying the effects of yield components on grain yield formation, which were not accurately reflected in simple correlation anaylses. Most cultivated 5 wheat and 9 barley cultivars were sown on October and February at Cheon-ju province according to standard sowing method. For the spring sowing of wheat and barley, the varieties having vernalization degree I~III are seeded in the mid of February and seeding rate is 200~250kg/ha which is increased by 25% than autumn sowing. N-fertilizer of 95 kg/ha and the same amount of P, K dressed in autumn are applied at once as basal fertilizer. The magnitude of direct effect in each yield components on yield was in sequence as follows. In autumn wheat, grain number per $spike{\geq}$ the number of spike per $m^2$>1000-grain weight and in spring wheat, grain number per $ spike{\geq}the$ number of spike per $m^2$> 1000-grain weight. In autumn naked barley, 1000-grain weight> the number of spike per $m^2$, grain number per spike and in spring barely, the number of spike per $m^2$> grain number per spike > 1000-grain weight. In autumn covered barley, grain number per spike>the number of spike per $m^2$ and in spring coverd barley, the number of spike per $m^2$> grain number per spike, 1000-grain weight. In autumn malt barley, the number of spike per $m^2$>1000-grain weight and in spring malt barley, the direct effects of three yield components were similar. According to the path analysis of yield components for spring sown wheat and barley, it was suggested that adequate number of spike per $m^2$ was most important factor for yield increase.

• Asian-Australasian Journal of Animal Sciences
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• 제19권7호
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• pp.970-977
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• 2006

Forage oat (Avena sativa L.) is grown extensively in a double-cropping system on dairy farms. Four oat varieties ('Swan', 'Targa', 'Foothill', and 'Nugene') were evaluated for forage production and forage quality during two growing seasons (spring and autumn) at two locations (central and southern region) in South Korea. The heading stage of four oat varieties was observed during spring, but the autumn season did not produce heading until harvest time except for the 'Swan' variety (early-maturing variety). The heading stage of 'Swan' in both locations was earlier compared to other varieties. The four varieties were resistant to both foliar disease and insects. Lodging resistance was higher during autumn except in 2002 at the central region, and late-maturing varieties ('Foothill' and 'Nugene') have lower lodging resistance. Dry matter (DM) content was significantly different between varieties (p<0.001). Comparing different varieties, 'Swan', an early-maturing variety, was highest in DM content. In DM, total digestible nutrients (TDN) and crude protein (CP) yield, the yield of oat varieties in the southern region was higher than in the central region, and forage yield of the oat varieties in the spring season was higher than during the autumn season. The DM and TDN yield showed significant differences between oat varieties. The CP content of oats grown in the central region (Cheonan) was lower than oats grown in the southern region (Daegu), and the spring season produced oats with lower CP compared to the autumn season. Among the four oat varieties, the CP content of late-maturing varieties was higher than the Swan variety (early-maturing variety). The acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents were higher for the varieties grown in Cheonan and during the spring season. The ADF and NDF contents of late-maturing varieties were lower than the early-maturing variety. TDN and relative feed value (RFV) were higher for the varieties grown in Daegu and during the autumn season. Late-maturing variety had higher TDN and RFV than early-maturing variety. Our study showed differences in forage production and forage quality of oats grown in different locations, seasons and varieties. Forage quality as well as forage production was better in the southern region than in the central region. Forage quality was better during autumn, but forage production was better during spring. Late-maturing variety had better forage quality than the early-maturing variety. Therefore, late-maturing varieties are more suitable for use in the southern region.

• 한국작물학회지
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• 제41권1호
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• pp.86-94
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• 1996

생태형이 서로 다른 품종들을 공시하여 파종기를 달리 했을 때 이들의 생태 및 생육특성과 수량성에 대한 생태형 및 연차간의 차이를 비교하여 콩의 재배 및 생리 생태연구에 활용하기 위하여 실시 한 시험결과를 요약하면 아래와 같다. 1. 출현율은 두 생태형 모두 파종기간, 연차간에 차이가 있었으며, 평균출현기간은 두 생태형 모두 1993년에 비해 1994년이 더 짧아 연차간에 차이가 있었으며, 파종기가 지연됨에 따라 감소하였다. 2. 두 생태형 모두 파종기의 지연에 따라 개화, 결실 및 성숙일수는 단축되었으며, 단축폭은 가을콩형에 비해 여름콩형이 작게 나타났으며, 연차간에도 유의적인 차이가 있었다. 3. 경장, 경직경, 주경절수, 분지수, 분지절수는 생태형 및 연차간에 차이가 있었으며, 모두 파종기가 늦어 짐에 따라 감소하였다. 4. 두 생태형 모두 파종기지연 및 연차간에 개체당협수는 차이가 있었고, 협당립수는 비슷한 경향을 보였으며, 100립중은 파종기에 따라 여름콩형이 감소한 반면 가을콩형은 큰 차이를 보이지 않았다. 개체당 공협수는 생태형간, 연차간 및 파종기에 따라 차이가 있었고, 고온이었던 1994년에 여름콩형에 비해 가을콩형이 공협 비율이 높게 나타났다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2019년도 추계학술대회
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• pp.72-72
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• 2019

참당귀는 가을에 모종을 생산하여 이듬해 봄에 이식 후 가을에 수확하는 2년 주기로 생산하는 방식으로 재배한다. 본 연구는 정식계절에 따른 참당귀의 생장특성을 비교하기 위해 경상북도 영주시에 위치한 해발고 350 m의 재배지에 실험구를 구분하여 가을(18년 11월)과 봄(19년 4월) 2회에 걸쳐 이식하였다. 연구 결과 생존율은 가을 이식 참당귀가 9.4% 높게 관찰되었고(가을-92.2%; 봄-82.8%), 추대율은 봄 이식 참당귀가 7.1% 낮게 관찰되었다(가을-37.3%; 봄-30.2%). 전체높이, 잎 길이 및 너비, 줄기 직경 등의 생장특성은 6월에 가을 이식 실험구에서 8월에 봄 이식 실험구에서 높은 생장율을 관찰하였다. 초기 생장은 가을 이식에서 긴 활착시간에 의해 높은 생장량이 발생한다고 사료되나 주 생장 시기인 6-8월이 되면 두 실험구 사이의 지상부 생장 차이가 미미한 것을 확인하였다. 향후 참당귀 뿌리의 생장특성 및 지표 성분 함량에 대한 추가 분석을 통해 참당귀의 최적 정식시기를 구명할 수 있을 것이라 사료되며 이에 따른 고품질 재배기술을 확립할 수 있을 것이라 판단된다.

• 한국식물병리학회지
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• 제11권3호
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• pp.197-209
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• 1995

This paper is a third report about the new fungal diseases of economic resource plants in Korea. It contains short descriptions on symptoms, occurrence conditions, pathogen, and some phytopathological notes for each of 10 fungal plant diseases. They are angular leaf spot of Achyranthes japonica by Cercospora achyranthis causing leaf spot and defoliation in the shade of plants, leaf spot of Armoracia lapathifolia by Cercospora armoraciae causing leaf spot to blight from the rainy season to autumn, hypophyllous mold of Dioscorea tokoro by Distocercospora pachyderma causing leaf spot and yellowing, hypophyllous mold of Artemisia spp.by Mycovellosiella ferruginea causing leaf spot and yellowing, angular leaf spot of Aralia elata by Pseudocercospora araliae causing velvety leaf spot and defoliation, hypophyllous mold of Lycium chinense by Pseudocercospora chengtuensis causing velvety leaf spot and defoliation from the rainy season to autumn, angular leaf spot of Diospyros lotus by Pseudocercospora disospyri-morrisianae causing leaf spot and defoliation from summer to autumn, brown leaf spot of Impatiens textori by Pseudocercospora nojimae causing leaf spot to blight from the rainy season, leaf spot of Cephalonoplos segetum by Ramularia cirsii causing leaf spot to blight throughout the growing season, and white mold of Leonurus sibiricus by Ramularia leonuri causing leaf spot to blight mostly in autumn.

• 한국초지조사료학회지
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• 제9권2호
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• pp.96-102
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• 1989

This field experiment was conducted to determine the effect of grazing and cutting management on the forage production and botanical composition at different legumes sown swards of the experimental field of Livestock Experiment Station. in Suweon, from Aug. 1985 to Oct. 1988. The results obtained are as follows: 1. Dry matter yield of cutting management (1213.0 kg/lOa) was higher by 19% than that of grazing management (1016.8 kg/lOa). Yield of pasture mixtures including alfalfa both cutting and grazing were higher than those including ladino clover and red clover. Yield under grazing was inferior to cutting in the first year but superior in the second year. 2. Seasonal dry matter production under grazing showed 5 1% in spring, 33% in summer and 16% in autumn, but under cutting showed 46% in spring, 42% in summer and 12% in autumn. 3. Daily dry matter production per 10a under grazing is decreased 5.9 kg in spring, 5.5 kg in summer and 3.7 kg in autumn. But under cutting is decreased 8.7 kg in summer, 6.6 kg in spring and 3.4 kg in autumn. 4. Botanical compositions of mixtures swards involving ladino clover and red clover were not influenced by method of defoliation. But mixtures swards including alfalfa were highly influenced by method of defoliation. Alfalfa ratio at the time of final utilization under grazing was about 30%, but under cutting was about 70-80%.