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송태화(Tai-Hua Song),한옥규(Ouk-Kyu Han),윤성근(Seong-Kun Yun),박태일(Tea-Il Park),서재환(Jae-Hwan Seo),김경훈(Kyeong-Hoon Kim),박기훈(Ki-Hun Park) 한국초지조사료학회 2009 한국초지조사료학회지 Vol.29 No.2
본 연구는 사료맥류의 최적 수확시기를 검토하기 위하여 맥종별(청보리, 호밀, 귀리, 트리티케일 및 총체밀) 수확시기(출수기, 출수 후 10, 20 및 30일)에 따른 건물수량과 사일리지의 품질을 검토하였다. 건물수량은 모든 맥종에서 출수 후 생육기간이 진행됨에 따라 증가되는 추세를 보였는데, 청보리와 총체밀의 경우 출수 후 20일에 가장 높게 나타났고, 귀리와 트리티케일은 출수 후 30일 가장 높게 나타났다. 화학성분은 생육기간이 길어짐에 따라 유의한 차이를 보였는데 청보리, 총체밀, 트리티케일 및 귀리는 조단백질과 NDF 및 ADF 함량이 모두 감소하였으며, 호밀의 경우 조단백질 함량은 감소하였으나 ADF와 NDF 함량은 증가하였다. TDN 함량과 RFV는 청보리의 경우 출수 후 20일에 가장 높게 나타났고, 총체밀, 트리티케일, 귀리는 출수 후 30일, 호밀은 출수기에 가장 높게 나타났으며, 생육단계별로 제조한 사일리지에서도 같은 경향이었다. 맥종별 사료가치로서 평균 TDN 함량은 보리가 66.98%로 가장 높게 나타났고, 다음으로 총체밀, 트리티케일, 귀리, 호밀 순이었다. This study was to optimize the harvest time of several winter cereal forage crops. Barley, rye, oat, triticale and wheat were evaluated for the quantity and quality of hay and silage at four different harvesting stages, including heading, 10 days after heading (DAH), 20 DAH and 30 DAH. Barley and wheat harvested at 20 DAH, and oat and triticale at 30 DAH showed maximum dry matter yield. Crude protein content of barley, wheat, triticale and oat decreased significantly with advancing crop maturity. Mean crude protein content was the highest in rye and the lowest in oat. The NDF and ADF content of barley, wheat, triticale and oat decreased with late harvest, while rye increased. Maximum total digestible nutrients (TDN) content was recorded in barley and wheat harvested at 20 DAH, in triticale and oat at 30 DAH, and in rye at heading. The maximum TDN content of silage, 66.98%, was recorded in barley, followed by wheat, triticale, oat and rye. However, The crude protein, NDF and ADF of silage was 1 to 4 times higher than those of hay. In this study, barley harvested at 20~25 DAH, wheat and triticale at 30 DAH, and rye at heading provided a good compromise between dry matter yield and forage quality. At this stage, a sufficient quantity of fodder with moderate forage quality was obtained.
Pathogenicity evaluation of soybean to new soybean virus, Soybean Yellow Mottle Mosaic Virus (SYMMV)
Yeong Hoon Lee,Jung Kyung Moon,In Youl Baek,Sang Ouk Shin,Byong Woo Lee,Hyun Tea Kim,Jong Min Ko,Sea Gyu Lim,Ha Sik Shim,Myeong Gi Jeon,Su Heon Lee,Sang Mok Kim,Jae Sun MoonG 한국육종학회 2009 한국육종학회 학술발표회 발표요지 Vol.41 No.1
The Demage of Bacterial Diseases of Soybean in Korea
Yeong-Hoon Lee,Nam-Goo Kim,In-Youl Baek,Jong-Min Ko,Chan-Sik Jung,Hyun-Tea Kim,Sang-Ouk Shin,Ha-Sik Shim,Byong-Won Lee,Myeong-Gi Jeon,Ki-Woung Yang,Young-Nam Yoon,Keum-Yong Park 한국작물학회 2010 한국작물학회 학술발표대회 논문집 Vol.2010 No.04
It has been reported that bacterial diseases of domestic soybean are bacterial pustule, wildfire, bacterial blight and bacterial brown spot. Among these bacterial diseases, bacterial blight infected by Gram-negative Xanthomonas campestris pv. glycines had been the most issue in soybean diseases. In recently, issue in soybean disease was shifted to wildfire by Gram-negative Pseudomonas syringae pv. tabaci. When infected in nature, symptom of wildfire generally surrounded infected-area of bacterial blight and formed pustule in infective center. Because optimum growth temperature of Wildfire is lower than these of bacterial pustule, Wildfire caused damage to crop yield in later growth stage. In this study, we checked symptoms of bacterial diseases with growth stages of soybean. Also, we surveyed disease severity of single infection, simultaneous infection and sequential infection of bacterial pustule and wildfire.