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RISS 인기검색어
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- 저자 : 곽수년(S.N. Kwack) (검색결과 4 건)
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韓國 自生茶(Camellia sinensis L.)의 交雜 稔性에 關한 硏究
김정운(J.W. Kim),곽수년(S.N. Kwack),최형국(H.K. Choi),신길호(Gil. Ho. Shin),김주희(J.H. Kim),한재석(J.S. Han) 한국차학회 2000 한국차학회지 Vol.6 No.1
For breeding of new Korean tea cultivars, It is very important to get basic informations on cross fertility of Korean native tea plants. Results of this investigation are summarized as follows. In Japan cultivar. 'Yabukita' and Korean .native tea plant, the rate of fertilization from strictly selfing, selfing between intra-plants and sibbing between inter-plants were 3.2, 3.1 and 5.6%, respectively. In Posong native tea plant, the rate that of fertilization from strictly selfing, selfing between intra-plants and sibbing between inter-plants were 2.9, 4.2 and 11.2%, respectively. Pollens were germinated on the stigma from 2 hours after pollination and pollen tubes grew into the style from 12 hours after pollination and into the ovary from 48 hours after pollitnation. The rate of fertilzation of 'Daewonsa native tea plant'X'TTES No 12' was 50%, whereas the reciprocal cross 'TTES No 12' X 'Daewonsa native tea was 23.3%. The average rate of fertilzation from all crosses was 19.8% and 'Yabukita' X'Daewonsa native tea and 'Yabukita'X'Bulamsa native tea were 50 and 42.2%, respectively. The number of seeds per fruit was 1.8 and and seed weight was 1.6g.
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한국자생차(Camellia sinensis L.)의 주요 특성조사
김정운(J.W. Kim),곽수년(S.N. Kwack),최형국(H.K Choi),신길호(K.H. Shin),한재석(J.S. Han) 한국차학회 2001 한국차학회지 Vol.7 No.1
For breeding new Korea tea cultivar. it in very important to get basic informations on major characters of Korean native tea varieties. In these experiments, the characters of leaf and flower, stomota of tea leaves were investigated in 25 native tea varieties. Results of this investigation are summarized as follows Eight native varieties including ‘Songgwangsa Temple’ had 7-9cm in leaf length and four varieties including ‘Jangheung Bangcuon’ hand more than 11.0cm. The number of crenate in the half leaf of native tea plant were 25-30 in 16 locations and the number of stomata per mm' were 111-130 in 13 loactions. According to pistil characteristics, ‘Bulgabsa Temple’ and ‘Bubcheonsa Temple’ varieties showed the same Ld type as ‘TITES No12’ which the pistil is longer than the stamen and the location of splitting point is under two thirds of pistil.
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韓國 自生茶(Camellia sinensis L.) 花粉 貯藏 特性
김정운(J.W. Kim),곽수년(S.N. Kwack),최형국(H.K. Choi),신길호(G.H. Shin),김주희(J.H. Kim),한재석(J.S. Han) 한국차학회 1999 한국차학회지 Vol.5 No.2
For breeding new Korean tea cultivars, it is very important to get basic informations on pollen storage method. Results of this investigation are summarized as follows. The pollen germination rate during storage was changed a little differently among varieties, and pollens collected from flowers in bloom-the pollens collected in two days before bloom showed higher germination rate than them in one day after bloom or five days before bloom. During Storafe at 20˚C, the pollens germination rate was decreased in 3 to 5 days after storage, and pollens was not germinated in 25 days after storage. Optimum temperature for pollen storage was 0 to -5˚C. Pollens in one day after bloom showed low germination rate compared to them in bloom or in 1-5 days before bloom. In conclusion. to extend storage time of tea pollens, it should collect and store in bloom or one day before bloom.
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기계유유제 살포가 차응애(Tetranychus kanzawai) 발생 및 첫물차 생산에 미치는 영향
김정운(J.W. Kim),신길호(G.H. Shin),김주희(J.H. Kim),한재석(J.S. Han),최형국(H.K. Choi),곽수년(S.N. Kwack),최지현(G.H. Choi) 한국차학회 1999 한국차학회지 Vol.5 No.1
Effects of spraying of machine oil emulsim on occurrence of tea red spider mite. Tetranychus kanzawai and yield of first tea were evaluated. The results were summarized as follows : 1. Occurrence of tea red spider mite moved from basal part of harvest surface of east in February. to middle and top part of harvest surface. 2. The population density of tea red spider mite was high on expanded upper second leaves(38%) and upper first leaves(29.2%). Horever, the density of tea red spider mite on unexpanded leaves and basal leaves was low. 3. Control value of machine oil emulsion applied on 15 March was 45%, but was 36.3% at routine application of 15 February. Two applications on 15 February and 15 march was betler than one application against tea red spider mite. 4. Control value of machine oil emulsion diluted to 20 to 40 times was 42.5~50%, but was getting lower at dilution of 60 to 80 times. The yield of fresh leaves of application at dilntion of 20 to 40 times was increased 6~7% than that of 80 times. 290kg/10a. 5. Phytotoxicity was detected with slitht wilting when machine oil tmulsin was applied at dilu tion of 20 times. However, there was on phttotoxicity in the other trials.
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