麥類의 黴粒防除에 關한 硏究

李寅杰 慶北大學校 1967 論文集 Vol.11 No.-

In Korea, the harvest period of barley is a long rainy season. Occurence of blight disease in barley seedlings is a very serious problem during this period. So that, studies on the basic problems to control this disease was carried out to solve these problems in this paper. Phenyl mercuric acetate and 0.2% CuSO_4 were sprayed to barley seedlings. After 24 hours treatment, artificial precipitation were continuously applied to barley seeds. The results obtained were as follows: 1. Effect of P. M. A. on the control of blight disease was so high and showed 0.1% leveled significant contrast with the control plot. But, in the plot of CuSO_4, significant was not appeared. 2. It is serious fact that Hg remains on the barley seeds, which is harmful to the health of mankind as shown an Table 5. in P. M. A. plot.

뜬苗의 發生原因에 關한 硏究 (第1報)

李寅杰 慶北大學校 1962 論文集 Vol.6 No.-

Planted rice seedling in early spring at frame during 1957 to 1958 but many TTUNMYO(Mureaoae) occured at frame nursery, so writer to find cause of its occuring. Experiments were carried under the artificial growth circumstance; Card-board-box, Glass-box. Different temperature of water irrigated. 1/20000 Wagner pot used. The TTUNMYO occurred by the difference of soil temperature and frame room temperature, and always requires to keep soil temperature and frame room temperature eqully for prevention of its occurrence.

香喫味의 葉煙草의 國産化에 關한 硏究 : Turkey葉의 生長에 미치는 生長 調節物質의 效果 Effects of growth regulators on the growth of Turkish Tobacco

李寅杰 경북대학교 교육대학원 1976 논문집 Vol.6-7 No.-

Experiment on the effect of foliar application with varied levels of B-9 (Alar) and M.H. (Maleic Acid Hydrazid) at 4 days after transplanting and at budding date of Turkish tobacco variety, Samsun-maden were conducted. The results summarized were as follows. 1. Treatments with 5,000 ppm of B-9 resulted in shortening stem height and delayed the flowering date for about 3 days in Turkish Tobacco variety, Samsun-maden. 2. There was a tendency to decrease the percentage of dried-up leaves and leaf area per plant but increase the dry weight and number of leaf hair per leaf area in the heighter levels with B-9foliar application at 4 days after transplanting and in case of foliar application of M.H. and B-9 at budding date, the effects of decreasing the leaf area were prevailed in upper posited leaves only. 3. There was a tendency to increase the nicotine and decrease the soluble sugar in the dried leaves by the foliar application of B-9, and the case of M.H. was reverse.

香喫味葉煙草의 國産化에 關한 硏究 : 第1報 被覆材培 및 M.H. 處理가 Turkey葉의 收量 및 品質에 미치는 影響 Part 1, The Effects of Vinyl Mulching and Chemical Controller Maleic Acid Hydrazide on the Leaves Yield and Quality of Turkish Tobacco

李寅杰,李準琸 慶北大學校 1973 論文集 Vol.17 No.-

Experiment on the effects of vinyl mulching and chemical controller maleic acid hydrazide to Turkish tobacco variety Samsun-Maden were conducted at the Taegu Tobacco Experiment Station during the 1972. The concentration of M. H. was 0.5 per cent solution at the rate of 15ml per plant and the numbers of M. H. treated times were divided into control and from once to trice at intervals of eight days before flowering date. The results may be briefly summarized as follows: 1. Vinyl mulching had an effect to promote the early plant growth compare with nonmulching, and the reverse was the case in late plant growth. 2. There was a trend to decrease significantly the percentage of dry-up leaves with increase in the numbers of M. H. treated times and increase the percentage in the vinyl mulching blocks compare with non-mulching. 3. Total dry weight of each treatment appeared no significant differences from others, but the increases in dry weight of leaves from once or additional treatment of M. H. showed significant differences and the reverse was the case of roots and tops. 4. The maturing of leaves were promoted significantly by the treatment of vinyl mulching or M. H., and it also proved that the effect of additional treatment of M. H. 5. Yields were increased significantly with increase in the numbers of M. H. treated times, but not appeared the significant difference in quality. 6. Total alkaloid was decreased and the reverse was the case of total sugar in the sun-cured leaves by the treatment of vinyl mulching. When the M. H. was treated only once total alkaloid and sugar in the sun-cured leaves were increased compare with control, but decreased gradually with additional treatment.

穗發牙抑制에 關한 硏究 : 麥類種子의 後熱其間에 關하여

李寅杰 慶北大學校 1968 論文集 Vol.12 No.-

Germination of barley ear occurs during the rainy season of the year in Korea. Important reason of germination is based on the length of after-ripening. 31 barley varieties cultivated in Korea were collected to study on the germination by their length of after ripening. The results obtained were as follows; 1) Germination capacity of barley ear showed considerable difference between varieties according to their length of after-ripening. 2) All the varieties were low in the germination capacity except Jae-re Jang-mang and Kyung23 under the range of 50% germination among 31 selected varieties. 3) Barley varieties cultivating in Kyung-pook province are high in the ear germination capacity. 4) Ear germination capacity was low on the barley varieties developed at Grops Experiment Station. O.R.D. in Suwon. 5) Low ear germination varieties increased after beginning of ear germination while high varieties decreased after beginning of ear germination.

穗發芽抑制에 關한 硏究(第一報)

李寅杰 慶北大學校 1964 論文集 Vol.8 No.-

Harvesting period of barley, in Korea, is belonged to the long rainy spells and damages from it are very serious. The author has studied on the degree of delayed germination of barley with effective materials to delay its germination, which is much different from the past negative operations of the kind. The results from this experiment are as follows: 1) Kyung-yuk, a variety of barley was selected for the experiment fo delayed germination on barley seed. 2) Materials for this experiment are Indole Acetic Acid, Maleic Acid Hydrazid. 3) As the results of Table Ⅰ and 11, 0.1% Indole Acetic Acid plot has been signified at 5% level contrasting to the control plot.

麥酒麥(Hordeum distichum, L.)의 優良品種 育成에 있어서 粒形質의 選拔에 關한 統計遺傅學的 硏究

李奉鎬,李寅杰 한국작물학회 1976 한국작물학회지 Vol.21 No.1

水稻의 登熟向上에 關한 硏究

諸商律,李寅杰,김랑춘,李準琸,張南日,洪鍾旭 慶北大學校 1974 論文集 Vol.18 No.-

This study was made to get the cultural information for increasing yield with recently improved variety, investigating the effects of different transplanting date and seed size, the number of plant per hill on the growth, and the yield and yield components in rice. The results obtained were summaried as follows: 1. In larger seed, the percentage of germination was higher and the early growth was more vigorous. However, there appeared no effects of seed size in the later growing period. 2. When the young plants sown on April 26 were transplanted on 5th, 15th, 25th of June and 5th of July with 10-days interval, the heading date was promoted in earlier transplanted plots. The days to heading, however, was shortend. 3. In the case of the earlier transplanting in Tongil variety, the maximum number of tillers was increased, the percentage of effective tillers was decreased, and the rate of ripened grains was slightly higher. The yield was the highest in the transplanted plot of June 25. The next came the transplanted plots of 25th, 5th of June and 5th of July. In the early transplanted plot of Palkweong variety, heading was also promoted. The days required for heading were also proportionly shortend, the number of the effective tillers was smaller and the percentage of ripened grains also decreased. The productivity was the highest in transplanted plot of June 25. 4. When the number of plants per hill was increased, the heading date was promoted, the number of panicles was high and the number of grains per panicles was decreased. In the early transplanting of Tongil variety, the yields was the highest in 4-plants plot. When transplanted late, it was the highest in 6-plant plot. In Palkweong variety, there was general tendency of increasing of yield as the number of plants per hill increased. 5. The dwarf disease of Tongil variety and the stripe disease of Palkweong variety occurred much in case of the lesser number of plants per hill and the earlier transplanting.

사과의 氣候條件 比較 硏究 : B. 紙袋가 사과의 含糖에 미치는 影響

朴東秀,李寅杰,金鎭球 慶北大學校 生産技術硏究所 1967 生産技術 Vol.2 No.-

病蟲害 및 藥害의 防除와 果色을 좋게 하기 爲한 目的下에 우리나라에서는 尙今 Golden delicious 外 數種에 있어서는 封紙를 씌워 栽培되고 있는 傾向이기에 Golden delicious를 標本樹種으로 選定하여 常用되고 있는 新聞紙袋로서 사과의 受光量을 制限함으로써 紙袋가 사과의 含糖量과 酸度에 미취는 影響을 調査하였던바 다음과 같은 몇가지 事實이 밝혀졌다. 1. 同一株에 있어서 封紙를 씌웠다 할지라도 中央部는 無袋果에 比해서 含糖量이 높았다. 2. 또한 遊離酸에 있어서는 南面區를 除外한 餘他 試驗區에서는 無袋果보다 酸度가 높았다. 이와같은 試驗結果에 依하면 有袋果라 할지라도 適度의 光度와 强剪定 等의 操作으로서 果色을 良好케 함은 勿論이고, 糖分의 濃度도 높일 수 있다고 思料됨.