http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
朴光義 서울대학교 1966 서울대학교 論文集 Vol.17 No.-
This work was carried out in order to induce the mutation by treating the pupa or the eggs of tussah silkworm with gamma ray and neutron. The results obtained are as follows: 1. Though the whole pupa treated with neutron(high ro‥ntgen) become moths, they have no ability to copulate each other. The only moths emerged from pupa treated with neutron, 4000r are able to lay all un-fertilized eggs, some of which have a hole on the surface and nothing of contents. 2. The non-diapause eggs are treated with neutron in Sping, but the hatching ratio is only 50-60 percent. the whole eggs treated with gamma ray are never hatched. 3. The sensitivity of the pupa to neutron is weaker than that of the eggs. 4. The hatching ratio is an indirect proportion to the gamma ray dose. 5. Author find out a new mutant which is excellent in the cocoon quality, so he will do the progeny test next year.
박광의 한국잠사학회 1973 한국잠사곤충학회지 Vol.15 No.2
곤충의 휴면성에 관한 연구업적은 수 많은 학자들에 의하여 보고되었지만 모든 연구결과는 더욱 일관성 없는 혼란만을 초래하였다. 그것은 이 화성이란 생물학적 현상이 매우 복잡성을 내포하고 있음을 의미한다. 그러나 최근 물리화학의 급속한 발전으로 인하여 새로운 어푸로치 방법이 개발됨에 따라 생물의 신비성 이 착착 들어나고 있으니 이 화성의 현상도 불원한 장래에 보다 명확하게 구명될 것이다.
박광의,성수일 한국잠사학회 1973 한국잠사곤충학회지 Vol.15 No.2
춘채 휴면잠종을 산란후 약 50일째에 전기충격 (electric Shock)을 줌으로서 부화의 가능성 여부를 예비실험한 결과 다음과 같은 결론을 얻었다. 1. 휴면란에 대한 전기충격은 배자의 발육을 촉진 시켰다. 2. 전기처리시간은 5초에서 비교적 부화성적이 좋았다. 3. 침산처리일로 부터 약 15∼22일 사이에 산발적으로 부화가 시작 되었다.
桑田 土壤面被覆이 桑樹의 根系分布 土壤의 化學性에 미치는 影響
朴光駿,李沅周,朴光義 서울大學校 農科大學 1982 서울대농학연구지 Vol.7 No.2
Soil mulching effect on the leaf yield and root distribution of mulberry tree and change in chemical properties of the soil was studied by conducting field experiment in the low-cutting mulberry field. For comparison, plots of clean tillage and herbicide weed control were made. The mulching materials used in the experiment were straw, chaff and polyethylene film. The results are summarized as follows: 1. The amount of fine and medium roots at the center part of the spacing increased by mulching. Chaff mulching increased espcially the amount of medium roots. The mulching treatment promoted the distribution of fine and medium roots at the depth of 20cm from the surface in the plots of polyethylene film and straw mulching. 2. It was evident that the pH and the content of Ca, Mg and available phosphate of the soil were higher in the center of the row spacing than in the surroundings of the tree, whereas the content of organic matter and exchangeable K were evenly distributed over the row spacing. 3. The chaff and straw mulching increased Ca and Mg content, but decreased the content of available phosphate in the soil. 4. There were no significant differences of root distribution and chemical properties in soil in the intra-tree space regardless of the locations. 5. The rate of cold injury of shoot tip increased in all the mulching treatments and especially in the chaff mulching. 6. The three year average leaf yield ('80 autumn-'81 autumn) was higher in the polyethylene film mulching than in the control. There was a distinctive decrease of it in other treatments and especially in chaff mulching. 7. The polyethylene film mulching increased the soil temperature by 1.4℃ and the other treatments rather decreased it by 1℃, as compared to the control. 8. The soil moisture content in the mulching plots was higher than in the control plot. In particular, the chaff mulching increased soil moisture content by 3∼6% than the control plot.
家蠶 休眠卵의 RNA 合成과 Aspartic Acid의 役割
朴光義,成洙一 서울대학교 1973 서울대학교 論文集 Vol.23 No.-
The work was carried out to observe a change in free amino acids of the diapause eggs(Bombyx mori), entering or terminating diapause by either hydrochloric acid treatment or cold storage. Paper chromatography was applied by the authors to the analysis of amino acids. The results obtained may be summarized as follows. 1. In the pre-diapause eggs 24 hr to 48 hr after oviposition, a few amino acids such as threonine, arginine, alanine, valine, tryptophan, and proline increased in amount, while cystine was decreased. 2. When eggs were immersed in HCl 20 hr after oviposition, the contents of amino acids did not increase as much as the non-treated one. Especially no increase of alanine was remarkable. 3. During cold storage at 5℃ for 40 days, the content of cystine as well as aspartic acid gradually decreased, and further only cystine completely disappeared. When the chilled eggs were treated wth HCl, no amino acids showed changes within 24 hr after HCl treatment. 4. Unlike the result that most amino acids did not change qualitatively or quantitatively after the onset of diapause, the amount of cystine and aspartic acid was decreased remarkably.
견사량(繭絲量)과 관계(關係)있는 몇 가지 요인(要因)에 대(對)하여 -보존잠품종별잠견(保存蠶品種別蠶繭)의 견층비율(繭層比率)과 연감율조사(練減率調査)-
박광의 ( K. E. Park ),신원집 ( W. J. Shin ),남중희 ( J. H. Nam ) 한국잠사학회 1968 한국잠사곤충학회지 Vol.8 No.-
견사량과 관계가 있는 견층비율과 견층연감율을 우리나라 보존잠품종별로 조사한 바 다음과 같은 결과를 얻었다. (1) 견층비율과 견층연감율간에는 상관이 없었으며, 전견중과는 중국계통에서만 정(+)의 상관이 있었다. (2) 계통별로는 연감율의 차이가 없으나 품종간에는 차이가 있었다. (3) 숫컷의 연감율보다 암컷의 연감율이 높았다. The aim of this treatise was to find out the factors related to the weight of a have in the original silkworm. The results obtained are as follows: 1. There is no relationship between the degumming rate and cocoon layer rate, but there is related with the weight of cocoon only in chinese strain. 2. There is no difference among the strains, but considerably differente in degumming rate among the species. 3. The degumming rate of female is higher than that of male.