식물환경연구실편 : 뽕나무 위축병에 관한 연구 - 접목전염 및 곤충전염 -

장병호(B . H . Chang),김종진(C . J . Kim) 강원대학교 농업과학연구소 1989 강원 농업생명환경연구 Vol.3 No.-

고냉지농업연구실편 : 뽕나무 위축병에 관한 연구 - 접목전염 및 곤충전염 -

장병호(B . H . Chang),김종진(C . J . Kim) 강원대학교 농업과학연구소 1989 강원 농업생명환경연구 Vol.3 No.-

뽕나무 위축병(萎縮病)에 관(關)한 연구(硏究) -접목전염(接木傳染) 및 곤충전염(昆蟲傳染)-

장병호 ( B. H. Chang ),김종진 ( C. J. Kim ) 한국잠사학회 1971 한국잠사곤충학회지 Vol.13 No.1

1968년부터 1970년까지 뽕나무위축병에 관하여 접목전염 및 곤충매개전염시험을 한바 결과를 요약하면 다음과 같다. 1. 병근에 건전수목을 절접하므로서 활착주수중 30%의 전염율을 나타냈다. 건전근에 병수목을 절접함에 있어서는 병수목을 월동전에 채취 저장하였다가 익춘 공시한 것은 활착주수중 14%가 전염되였는데 반하여 월동 후에 채취한 병수목에 있어서는 전혀 발병되지 않았다. 건전대목에 병수목을 절접하여 불활착된 것 중 대아가 발조한 것은 전혀 발병되지 않았다. 2. 뽕나무위축병의 무병지대에서 채집한 마름무늬매미충을 중증위축병주에서 7일, 14일, 21일 간식 각각 흡즙시킨 성충을 무병실생묘에 방사접종한 결과 7일구는 전염되지 않았으며 14일구는 22%, 21일구는 61% 전염율을 나타냈다. 흡즙시간과 접종시간은 길수록 전염율이 높았다. A series of experiments were conducted from 1968 to 1970 to find the transmission effects of the dwarf disease of mulberry tree in connection with inlay grafting and insect vector with the following conclusions: 1. The inlay-grafting of sound scions on diseased roots showed a 30 per cent transmission rate among the successful grafts. The inlay-grafting of diseased scions on sound roots showed a 14 per cent transmission rate among the successful grafts in the case of scions cut and stored before wintering but no transmission effect in the case of scions prepared after wintering, There were some stocks, among the unsuccesful grasfts of diseased scions upon sound roots, that sprouted out new buds, no transmission effects were found in them. 2. Leafhoppers (Hishimonus disciguttus Walker) collected from areas with no dwarf disease infection were grouped into three plots and let to feed on mulberry tree severely infected by dwarf disease for 7 days, 14 days and 21 days respectively. After these preliminary treatment, the leafhoppers were recollected to be fed on the sound seedling divided into three plots for 10 days, 15 days and 20 days respectively to find the transmission effects. The results are that the 7 day plot showed no transmission effect whereas the 14 day plot showed a 22 per cent disease rate and the 21 day plot 61 per cent rate indicating that the longer the feeding period is the higher the transmission rate.

日長條件 따른 小麥의 稈長變異 및 遺傳에 關한 硏究

C.H. CHO(曺章煥),B.H. HONG(洪丙憙),J.H. NAM(南重鉉),B.H. CHANG(張炳浩) 한국육종학회 1980 한국육종학회지 Vol.12 No.2

To investigate the genetic and ecological variation of culm length of wheat the different daylength has been applied to major wheat varieties planted at greenhouse in Suweon. Standard errors of culm length were larger at 12 and 8hrs day length than that of 24hrs. Variations of culm length due to different photoperiod were more remarkable in medium and short culms than that of long one. Number of genes controlling culm length of variety Robin #2 was more or less 2 genes. This study has been conducted to investigate the genetic and ecological variation of wheat calm length measured from those plants grown at greenhouse. The results are as following. 1. The calm length of the winter wheat was highest under 12hrs daylength, while that of the spring wheat was highest under 8hrs daylength. Standard errors of culm length was larger under 12 and 8hrs daylength than that of 24hrs daylength condition. 2. The culm length was shortest under the 24hrs daylength compare to under 12 or 8hrs while it was highest under 12hrs. Short and medium culm length varieties were photo insensitive but those of long culm length were photo sensitive. 3. There are many types of varietal differences for the culm length under the daylength conditions. Highest culm length group under 12 and 8hrs contition was classified. The semi-dwarf varieties that did not change their plant heights under 8 and 12hrs conditions were Hira, Yecora Resel, Sava, Sturdy, Saric 70, Sekidorisai 66 etc. 4. Varietal difference of culm elongation was noticed between 8hrs and 12hrs daylength condition. On the basis of the evidences obtained from this experiment, it may be concluded that the genetic studies related to culm length should be carried out under the most favorable conditions for calm elongation. 5. Correlation coefficients estimated between culm length and heading or maturity were negative but insignificant, but their correlations were highly significant between photo treatments. 6. Calm length of F₁ was intermediate to the range of F₂ population which seems to be distributed normally. In this regard the gene involved with calm length seemingly inherit additively. Statistical analysis for the involved genes for calm length suggested 2 genes for the semidwarf variety Robin #2 was more or less 2 genes.

New Zealand 산 도입목초의 강원지역에 있어서 적응성 비교시험

김창주,장병호,이창덕 ( C . J . Kim,B . H . Chang,C . D . Lee ) 한국축산학회 1978 한국축산학회지 Vol.20 No.3

A comparative experiment was carried out in Chunchon and Taekwanryong, Kangwondo to test the adaptability of pasture plants introduced from New Zealand. The New Zealand introduced pasture plants tested in this experiment were orchargass-Apanui(O-A), perennial ryegrass-Ruanui(P-R), Tama ryegrass(Ta), timothy-Kahu(Ti-K), white clover-Huia(W-H), alsike clover(As), red clover-Hamau(R-H) and alfalfa-Wairau(Af-W); besides those plants U.S.A. introduced orchardgrass-Potomac(O-P) and Ladino clover(L), Canada introduced perennial ryegrass-Norlea(P-N) and Australia introduced tall fescue-Demeter (Tf-D) were included in this experiment to compare with the New Zealand introduced pasture plants. The Chunchon experimental field(94m above sea level) was sown on the 8th of May 1977 and the Taekwanryong experimental field(820m above sea level) on the 10th of 1May 1977, and the experiment was carried on until April 1978. The results obtained were summarized as follows: 1. O-A and P-R were slower in early stage growth, lower in the year total yield of dry matter and poorer in wintering record than O-P and P-N respectively. 2. O-A and P-R seemed to unsuitable varieties for the Kangwon area. 3. Ta, which proved to be annual, was thought to be utilized sooner after the sowing because its early stage growth was extremely vigorous. 4. Ta demonstrated abundant production marking 10.99 t/㏊ in the year total yield of dry matter in the Taekwanryong experimental field. Nevertheless, Ta`s summering record was inferior in the Chunchon experimental field. 5. In the both experimental fields of Chunchon and Taekwanryong, Ti-K showed a poor record in summering and presented a low year total yield of dry matter but it was found to be outstanding in winter survival. 6. W-H was regarded to have the strongest winter hardiness among the legume plots, yet it marked rather a lower dry matter yield. 7. It is presumed that R-H will find no difficulty in wintering even in the alpine region but will fall into trouble in summering in the lowlands. 8. Af-W made poor growth in both the Chunchon and Taekwanryong experimental field. 9. Though L recorded the highest year total yield of dry matter among the legume plots, most of L were winterkilled in the Taekwanryong experimental field. 10. O-P and Tf-D presented comparatively good record in summering and wintering, and Tf-D showed the highest year total yield of dry matter in the Chunchon experimental field presenting 6.01 t/㏊. 11. P-N and As revealed comparatively strong winter hardness even in the Taekwanryong experimental field. 12. In the year total yield of dry matter the Taekwanryong experimental field was larger than the Chunchon experimental field by 79.1% in the grasses and by 13.8% in the legumes.

절전형 ZnO-Si계 CO 가스 센서 제작과 그 특성

이승환(S. H. Yi),홍형기(H. K. Hung),김종관(J. K. Kim),장병호(B. H. Chang),성영권(Y. K. Sung) 대한전기학회 1997 대한전기학회 학술대회 논문집 Vol.1997 No.11

고냉지농업연구실편 : 한국대두에서의 Trypsin Inhibitor Variant 의 분포와 유전

최종열(J . Y . Choi),장병호(B . H . Chang) 강원대학교 농업과학연구소 1989 강원 농업생명환경연구 Vol.3 No.-