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遊離시간 , 酵素處理 및 2,4-D 농도가 재래 유자(Citrus junos)의 캘러스由來 原形質體 遊離 및 培養에 미치는 영향
오성도,김영숙 한국식물생명공학회 1998 식물생명공학회지 Vol.25 No.5
미숙배주조직 유래의 배발생캘러스를 이용하여 원형질체의 유리 및 배양에 미치는 요인을 조사하였다. 배발생캘러스로부터 원형질체를 유리시키는데 적당한 배양시간은 16시간이었고, 건전한 원형질체를 유리하는데 적당한 효소용액의 농도는 0.7M $\textrm{BH}_{3}$ 용액과 cellulase 1.0%, macerozyme 1.0%, pctolyase 0.2%가 혼합된 효소용액을 동량으로 조합하였을 때가 가장 효과적이었다. 유리된 원형질체는 MT기본배지에 0.1 mg/L 2,4-D를 첨가한 배지로 배양하면 캘러스 형성이 양호하였다. 유도된 캘러스는 고체배지에 계대배양하고 있으나 생육이 징약한 상태이다. 본 실험결과 배발생캘러스유래의 원형질체와 엽육세포유래의 원형질체 융합에 의한 배양도 가능할 것으로 생각되었다. The factors affecting the isolation and culture of the protoplast of embryogenic callus, derived from immature ovule in Citrus junos, were examined. An incubation time in enzyme solution of 16 hrs was preferable for protoplast isolation. Efficient protoplast yields were obtained from the treatment of equal concentration of 0.7 M $\textrm{BH}_{3}$ to the enzyme solution containing 1.0% cellulase, 1.0% macerozyme and 0.2% pectolyase. Protoplast cultured in MT medium with 0.1 mg/L 2,4-D showed vigorous division and some of them formed callus. Induced callus was subcultured on solid MT medium but the callus showed very slow growth. The above results show the possibility to culture from protoplast fusion in Citrus genera.
殺蟲劑 撒布에 의한 사과의 胚發育抑制에 관한 解剖學的 硏究
吳成都,홍성호 전북대학교 농업과학기술연구소 1982 農大論文集 Vol.13 No.-
Effect of chlorpyrifos insecticide on apple fruit dropping during the period of full bloom through 10 days after petal fall was studied. Ovule development wag observed and illustrated in successive samples of Starking, Jonathan and Fuji from bloom through fruit drop induced by the insecticide. The results obtained were as follows : 1 . Chlorpyrifos spray in full bloom stage did not have any influence on fruit dropping. Fruit dropping occurred in the plots where the insecticide was spraying in the petal fall stage, then tile fruit setting was highly significantly reduced in both plots sprayed S and 10 days after petal fall. 2. Among different cultivars, Starking was the most sensitive to the insecticide in fruit dropping and followed by Jonathan. Fuji was almost non-sensitive to chlorpyrifos spray. 3. There was less placental tissue to which the ovule was attached in Starking than in Jonathan and Fuji. 4. The effect of insecticide was reduced due to the proliferation of funiculus and placental tissue in the full bloom stage, resulting in normal development of the ovule. 5 . It was concluded that fruit dropping was caused by the embryo degeneration resulting from disintegration of funiculus, placental tissue and vascular system attached to ovule induced by the insecticide sprayed during the period of 1~3 weeks after petal fall.
吳成都 전북대학교 농업과학기술연구소 1993 農大論文集 Vol.24 No.1
The increasing pressure of agricultural import liberalization form abroad has given great burden to the Korean agricultural sector which has lagged far behind the industrial sector has been left as it was undeveloped mainly due to the unbalanced economic development policies. In addition to the rapid import -market liberalization, the agricultural production sector of Korea becomes more and more commercialized and the consumption patterns of agricultural products becomes diversified and high -quality oriented continuously. Chonbuk area, of which rice production is highest in Korea, is estimated to receive serious damage in future. Therefore Chonbuk agricultural industry should be changed into high -income agricultural system. Among many agricultural products the capital -technology intensive agricultural products such as vegetables, fruits, flowers, ginseng and processed foods are considered to be the most competitive in the agricultural markets of Japan, USA, South East Asia, and European countries. Particularly, apples and oriental pears among fruits which are producing in Korea are exporting to these countries and they are estimated to prove high income crops. Chonbyk area has good environmental condition for frult production. This theses emphasizes that technical improvement as well as administration support in fruit production should increase the farmer's income with respect to environmental condition in Chonbuk area.
吳成都,李炳基,李承玄 전북대학교 농업과학기술연구소 1990 農大論文集 Vol.21 No.-
In order to investigate the cause of low fruit setting in the artificial Pollinated flowers in Chinese jujube, the in vitro 맨lien germination was studied with effective substances added on the medium. Pollen germination varied with flowering stage with the highest germination rate at just after flowering in both cultivars. Pollen germination rate reduced below 30% after 6 hours from flowering. Boron 0.1% and sucrose respectively promoted pollen germination rate when added on medium. NAA 100ppm among plant growth regulators treated on medium was the most effective in pollen germination. None pollen germination observed in nectar collected from flowers. It was suggested that the impossible artificial pollination in Chinese jujube was not caused by un-usual pollen germination.
吳成都,張漢翼 전북대학교 농업과학기술연구소 1981 農大論文集 Vol.12 No.-
In order to obtain available data for increasing fruit setting and fruit quality in Fuji apple(Malus domestica Borkh. ), studies were conducted to find out the relationship between some characters of terminal bud of spur during a rest period, flowering, fruit setting, and fruit quality. Fruit quality was also measured in relation to setting position of the tree. The results are summarized as follows ; 1 . Terminal buds of spur in Puji cultivar was smaller than that of Starkrimson and Jonathan. Flowering rates of Fuji was lowest except the trees grafted on M 26 rootstock which showed same flowering rates as Jonathan. 2 . Floral bud size was larger than the vegetative bud in terminal buds of spur. 3. Flowering rates and fruit setting rates increased with the increasement of bud size, especially with the increasement of bud length rather than width. 4. In Fuji cultivar high flowering rates were obtained from larger buds of 4.1㎜ width with 6.1㎜ length and in Starkrimson from the buds of above 4.1㎜ width with 7.1㎜ length. 5. Fruit setting rates of flowers of different bud size were similar except very small buds. 6. There was a close relationship between the size of buds and the mature fruit size, but no relationship with fruit color, sugar content or total acid content. 7. Almost all the small terminal buds of spur in Starkrimson were vegetative, but in Fuji many floral organs were observed even in small buds. 8. There was a close relationship between fruit quality and setting position of canopy ; The fruit quality bearing on east and north direction was inferior to that on south and west, and it was lower with lower position of same direction. Fruit quality bearing on long spur was lower than that on medium, or short spur.
吳成都 전북대학교 농업과학기술연구소 1995 農大論文集 Vol.26 No.1
Horticultural industry In Chonbuk Province is inferior in its production amount and cultivation areas because of the relatively high rice production. Horticultural industry is the most competitive area in the field of whole agriculture and it is recognized as the high-income agriculture due to increasing demand brought by the national economic development. Obstructive factors in production side are small scale-farming, lack of inadequate overhead capital investment, deficient technology for mechanization and automation as well as production and quality enhancement. Present situation and solving problems for development of horticultural industry in Chonbuk province were discussed.
포도 '거봉' 2기작재배를 위한 하계휴면타파에서 토양수분 조절과 휴면타파제 처리가 발아에 미치는 영향
오성도,김용현,최동근 (사) 한국생물환경조절학회 2002 시설원예‧식물공장 Vol.11 No.2
Double cropping system in a year in Kyoho grapes (Vitis labruscana L.) has currently been attemptedin the plastic greenhouse. One of the problems in double cropping system is the promotion of budbreak in summer season and shoot fertility. Effects of the control of soil moisture tension near the rootzone and treatments of bud dormancy breaking agents on bud breaking in summer were examined topromote the bud break for the second fruiting. The lignification of shoots was induced in July orAugust by the control of soil moisture tension in root zone environment. The first shoot growth wasalmost the same as that in common plastic greenhouses. The highest bud break value appeared in theplot of cyanamide chemicals mixed with merit blue as over 75% bud break rate. The bud break rate inthe discontinuing plot in irrigation showed significantly higher in bud break than that in the continu-ing plot in irrigation. Despite of the final high bud break rate, the time of bud break was irregular.