5-Chloroindazol-8-acetic Acid Ethylester(Figalon)에 依한 溫州蜜柑의 藥劑摘果에 關한 硏究

韓海龍 건국대학교 1979 論文集 Vol.10 No.1

Various concentrations (100-500ppm) of Figalon (J-455 : 5-chloroindazol-8-acetic acid eth-ylester) were sprayed on 6 year old 'Miyakawa wase' Satsuma mandarin (citrus unshiu Mar.) tree on trifoliate orange stock, about 30 days after full bloom. And on three different dates (30, 45, and 60 days a(text full bloom), 150ppm Figalon solution was sprayed on 12 year old 'Miyakawa wase.' Fruit drop ratio, changes in the ratio of leaf-to-fruit, and quality of the harvested fruits were investigated. Results obtained are summarized as follows: 1.Higher concentration of Figalon sprayed, more fruits dropped. Figalon spray, however, cause less fruit drop than 200ppm NAA. 2.Spray on June 6 (45 days after full bloom) was most effective, as a thinning agents among the sprays on three different dates or 30, 45 and 60 days after bloom. 3.Fruit dorp accelerated by Figalon, occured mainly during early and middle July. 4.Figalon spray seemed to increase the fruit growth and Brix of the fruit juice at harvest The degree of increase, however, varies with year.

冠芽를 利用한 파인애플 '大農 5號'의 器內增殖에 關한 硏究

姜聖根,韓海龍 濟州大學校 亞熱帶農業硏究所 1988 亞熱帶農業硏究 Vol.5 No.-

파인애플 ‘大農 5號 ’의 冠芽를 器內培養하여 大量繁殖을 試圖할 境遇, NAA와 BA가 新梢生育에 미치는 影響과 摘合한 培地의 種類, 그리고 培養條件을 究明하고, 木圃 栽植時 培養苗와 吸芽苗의 生育을 比較하기 위하여 實施한 試驗結果를 要約하면 다음과 같다. 1. 新梢의 生育은 1/2 MS 培地에 蔗糖 4.0%, BA 1.0㎎/ℓ을 添加한 後 培養容器에 20%의 培地를 注入하여 액체진탕배양하는 것이 效果的이었다. 2. 不定芽를 繼代培養한 結果 chimera, albino 矮性形態의 變異個體가 5代째 6.1%, 6代째 15.9%가 發生되었다. 3. 뿌리의 發根에는 1/2 MS 培地에 活性炭 1.0g/ℓ을 添加한 後 1,500 ㏓의 光度條件에서 固體培養하는 것이 效果的이었다. 4. 揷木床에서의 發根은 器內培養時 100%에 比하여 IBA 2.0㎎/ℓ處理區에서 99.4%, NAA 2.0㎎/ℓ處理區에서 98.6%였으며, 그 다음이 無處理 89.7%, Auxibaron 56.6%, Rooton 54.7%, IBA 10.0㎎/ℓ50.5%, NAA 10.0㎎/ℓ46.2% 順이었다. 5. 器內培養苗는 吸芽苗보다 初期生育은 低調하였으나 時日이 經過함에 따라서 生育이 促進되었고, 栽植 後 360日째에는 草長 7.3㎝, 葉數 6.3個 程度가 增加되어 栽培期間 短縮이 期待되었다. The experiments were conducted to find out the effects of NAA and BA, to determine the optimal medium and the culture conditions for masspropagation of pineapple (Ananas comosus (L.)MERR) Daenong #5 (Smooth Cayenne ×Yellow Moritious), by using the crown explant, and to compare the degree of growth between plantlets obtained by shoot tip culture and the suckers. The results obtained were summarized as follows; 1. Multiple shoots were obtained by agitating half strength salts of Murashige and Skoog liquid medium containing 4.0% of sucrose and 1.0㎎/ℓof BA. 2. The varigated adventitious buds such as chimera, albino, and dwarf type were responsible for 6.1 and 15.9% at the 5th and the 6th subculture, respectively. 3. In vitro rooting was better in the half strength salts of MS solid medium containing 1.0g/ℓof the activated charcoal than in the liquid medium under the light condition of approximately 1,500 lux of light with a photoperiod of 16 hours. 4. In vitro rooting was easier than in vivo, and rooting percentages by each chemicals used were 99.4 in 2.0㎎/ℓIBA, 98.6 in 2.0㎎/ℓNAA, 56.6 in Auxibaron, 54.7 in Rooton, 50.5 in 10.0㎎/ℓIBA, 46.2 in 10.0㎎/ℓNAA and 89.7 in the control. 5. In general, the plantlets produced by in vitro culture showed poorer growth than the suckers at the early stage of growth after transplanted into soil mix, while in vitro cultured plantlets showed much better growth than the suckers at the late stage. The plantlets from in vitro culture were 7.3㎝ higher and produced 6.3 leaves more than did the suckers 360 days after transplanting.

溫州蜜柑 夏·秋枝의 發生 및 生長에 미치는 c-MH의 效果

文斗吉,許英珍,韓海龍 濟州大學校 亞熱帶農業硏究所 1986 亞熱帶農業硏究 Vol.3 No.-

溫州蜜柑(Citrus unshiu)에 있어서 夏·秋枝 發生의 化學的 抑制 方法을 探索하는 一環으로 c-MH(maleic hydrazide의 choline鹽)의 利用可能性을 檢討한 結果를 要約하면 다음과 같다. 1. 橋本早生 幼木을 供試하여 6月 中旬부터 9月 初旬에 걸쳐 時期 및 濃度別로 1回 處理한 c-MH의 效果는; 1) 夏枝의 生長은 遲延되었으나 頂芽優勢現象이 없어져 新稍發生數는 오히려 增加되었으며 가지별 生長 특히 잎의 生長이 抑制되었고 심한 경우에는 쐐기 모양의 奇形葉이 出現되었다. 2) c-MH 處理에 依한 夏枝의 生長抑制 效果는 7月 處理區에서 그리고 250ppm 以上의 濃度에서 觀察되었다. 3) 秋枝發生은 1,000ppm 以上의 濃度 1回 處理로 充分히 抑制되었다. 2. 興津早生 結實樹에서 8月 下旬에 이미 發生된 夏枝를 除去한 後 2,000ppm을 1∼2回 處理한 結果; 1) 無處理區는 除去後 얼마 안있어 新梢가 많이 發生되었으나 處理區는 많은 눈이 形成되었지만 가지의 生長은 볼 수 없었다. 2) 處理 當年度 果實은 c-MH 處理에 의해 果汁의 糖度가 增加되었고 酸含量은 減少되는 傾向을 보였다. 3) 2回 處理區는 翌年의 春枝發生이 遲延되었을 뿐만 아니라 發育이 심히 抑制된 가지에서 쐐기모양의 奇形葉이 叢生하였다. 4) 그러나 顯微鏡으로 觀察한 잎의 橫斷面 細胞의 크기는 奇形葉과 正常葉 사이에 差異가 없었다. 5) 處理 다음 해에는 開花時期가 遲連되었고 着花數도 減少되었다. 6) 2回 處理區의 翌年度 果實은 發育이 抑制되었고 果梗部가 突出하였으며 果皮가 두껍고, 거칠은 奇形果의 發生이 많았다. 그러나 1回 處理區는 無處理區와 같았다. 3. 米澤溫州와 宮川早生의 結實樹를 供試하여 7月 下旬부터 10日 間隔으로 500PPM의 C-MH를 2∼3回 그리고 8月 下旬 1,000ppm 1回 處理로 夏·秋枝 發生을 充分히 抑制할 수 있었다. 果實의 發育과 果汁 成分에 미치는 c-MH의 效果는 試驗年度와 供試品種 에 따라 달랐다. The chemical control of summer and autumn shoots in Satsuma mandarin (Citrus unshiu) was examined using the foliar application of the choline salt of maleic hydrazide(c-MH). The results obtained are summarized as follows: 1. The effects of the concentrations and the dates of application were investigated in two-year old tress of 'Hashimoto Early'. 1) While the occurrence of summer shoot was delayed by c-MH, many buds were stimulated to grow afterwards. The growth of individual shoots, especially leaves, was conspicuously retarded. 2) The growth of summer shoot was affected by the application of 250ppm or higher in July. 3) The occurrence of autumn shoot was completely inhibited by an application of 1,000ppm or higher in late August. 2. Fruiting trees of 'Okitsu Early' were sprayed once or twice with 2,000ppm c-MH in late August after artificial removal of summer-shoots. 1) Regrowth of new buds in the current season was totally restricted by c-MH. 2) Juice Brix of the fruit in the current season seemed to be increased by c-MH, while acid content decreased. 3) Double sprays of 2,000ppm resulted in the delayed sprouting and the rosette-type shoots with underdeveloped wedge-shaped leaves in the following spring. 4) No differences in cell size were recognized under an optical microscope between the normal and the underdeveloped leaves. 5) Flowering was also delayed and the number of flowers was reduced by c-MH. 6) Abnormal fruits with protruded stem-end and thickened rough peel resulted from the double sprays of 2,000ppm in the end of the previous growing season, but not from the single spray. 3. It was demonstrated in fruiting trees of 'Miyagawa Early' and 'Yonesawa' Satsuma mandarin that the occurrence of summer flush could be inhibited by 2∼3 sprays of 500ppm c-MH during the period from late July to mid August and that of autumn flush by a spray of 1,000ppm in late August. The effects of c-MH on the fruit development and juice quality varied with years and orchards.

濟州道에서 Feijoa(Feijoa sellowiana Berg.)의 果實發育에 關한 硏究

白子勳,朴才昊,韓海龍 濟州大學校 亞熱帶農業硏究所 1992 亞熱帶農業硏究 Vol.9 No.-

濟州道 地方에서 feijoa (Feijoa sellowiana Berg.)의 經濟的 果實 生産 可能性에 關한 基礎資料를 얻기 위하여 'Mammoth', 'Triumph', 'Robert' 및 'Coolidge' 品種에 대하여 9月 下旬부터 11月 上旬까지 果實의 外的, 內的, 發育 狀態를 調査한 結果는 다음과 같다. 增加倍數 收穫時 結果 從徑 1.62~1.7 48.35~51.84㎜ 橫徑 1.77~1.8 38.85~40.97㎜ 果重 4.73~6.59 41.54~50.85g 果肉重 6.17~9.69 8.35~11.06g 果肉步合比 1.31~1.71 20.79~22.45% 果皮두께 1.49~1.66 7.28~7.45㎜ 糖度 1.35~1.74 12.65~15.11。Brix This study was conducted to obtain the data for feijoa (Feijoa sellowiana Berg.) production in Cheju. Four feijoa cultivars-Mammoth, Triumph, Robert and Coolidge-were compared in development of fruits harvested at different maturing stages. Increasing rate of fruit size (fruit length, width and weight) and fruit quality (pulp weight, pulp content, skin thickness and soluble solids) were examined from Oct. 26 to Nov. 5 (90~130 days after anthesis) in 1990. The results obtained are summerized as follow. Increasing rate Fruit size and quality (Nov.5) Fruit length 1.62~1.7 48.35~51.84mm Fruit width 1.77~1.8 38.85~40.97mm Fruit weight 4.73~6.59 41.54~50.85g Pulp weight 6.17~9.69 8.35~11.06g Pulp content 1.31~1.71 20.79~22.45% Skin thickness 1.49~1.66 7.28~7.45mm Soluble solids 1.35~1.74 12.65~15.11。Brix

濟州道 柑橘의 葉分析에 關한 硏究

韓海龍,金翰琳 제주대학교 1969 논문집 Vol.1 No.-

1, 本 硏究는 濟州道에서 栽培되는 柑橘 (尾張溫州, 宮川早生, 夏橘, 八朔)의 엽분석에 의한 영양상태를 조사하기 위하여 施行되었다. 2, 柑橘의 엽내에 함유된 영양소중 PCa는 종류에 따라 차이가 없으나 N K Mg Fe는 柑橘의 종류에 따른 有意의 차를 認定할 수 있다. 일반적으로 온주계가 八朔이나 夏橘에 比하여 함량이 높다. 3, 보통온주에 있어서 佐藤가 수립한 영양원소의 標準과 比較하면 N, K, Ca, Fe가 正常이지만 P, Mg는 正常보다 부족인 果樹園이 많았다. 4, P의 不足은 화산회토양의 特性에 依한 것 같고 Mg의 결핍은 토양의 性質과 過用된 K와의 拮抗作用에 依하여 초래된 것 같다. 1) This study was made to survey the nutrient status of Cheju citrus trees-mijang, gungcheon, hagyul and palsak - by leaf analysis. 2) There were significant differences in nitrogen, potassium, magnesium, and iron with the exception of phosphorus and calcium among each of citrus species or varieties. These contents were higher in leaves of citrus species or varieties. These contents were higher in leaves of citrus unshiu than in those of palsak or hagyul. 3) According to the nutrient element balance provided by sato for citrus unshu in Japan, the nitrogen potassium, calcium and iron percentages in Cheju-do were normal. But many citrus orchards were below the standard in the content of phosphorus and magnesium. 4) The low content of phosphorus appears to be caused by volcanic ash soil which occupies almost all citrus orchard areas. The magnesium deficiency is probably due to the volcanic soil and the antagonism with potassium which was applied in excess.

6. 바나나의 施設栽培 技術改善에 관한 硏究

韓海龍(Han Hae Ryong),文斗吉(Moon Doo Khil),姜榮吉(Kang Young Kil),李宗錫(Lee Jong Suk) 한국원예학회 1990 한국원예학회 학술발표요지 Vol.8 No.1

鱗片 및 珠芽에 對한 低溫處理와 光中斷이 暖地型 마늘의 生育과 二次生長에 미치는 影響

韓海龍,朴庸奉,張田益 제주대학교 1984 논문집 Vol.19 No.-

濟州在來의 珠芽,普通鱗片과 上海早生의 珠芽 및 普通鱗片에 各各 30日,60日間의 低溫(0~5℃)處理를 하여 2月 20日부터 5月 20日까지 120分間을 光中斷處理를 하여 이들 處理가 마늘의 生育 및 鱗莖形成에 미치는 影響을 調査하였다. 1. 濟州普通鱗片은 冷藏處理 其間이 길수록 出現이 빨랐고 珠芽는 길수록 늦은 경향을보였다. 2. 草長,葉長은 普通鱗片이 珠芽보다 컸으며 低溫處理기간이 길수록 增加하였다. 上海早生의 普通鱗片은 自然日長區가 光中斷處理區 보다 增加하였다. 3. 葉墅長 및 葉墅莖은 低溫處理 其間이 길수록 增加했으며 특히 上海普通鱗片은 60일 低溫區에서 光中斷處理 效果가 크게 나타났다. 4. 鱗莖肥大率은 冷藏處理 其間이 길수록 普通鱗片에서 높았고 濟州普通鱗片은 30,60일,上海普通鱗片은 60日 冷藏處理에서 光中斷處理 果가 컸다. 5.珠芽의 植物體重과 球重은 冷藏處理 期間이 길수록 減少했으며 普通鱗片에서도 光中斷處理는 오히려 增加하였다. 6. 鱗片數는 上海珠芽를 제외하고 30日 冷藏處理에서 많았다. 7. 收量은 普通鱗片이 珠芽보다 많았고 光中斷處理는 上海早生의 無處理區와 60일 冷 藏處理구에서 增加하였다. 8.GA₃ 의 含量은 각 處理에 관계없이 鱗片肥大 最盛期에 增加하였으나 收穫期에 가까 울수록 減少하는 傾向을 보였다. Garlic seed bulbils of ecotypes,Cheju Jaere and Shanghae wase,were planted after treatment at 0-5℃for 30 and 60 days respectively, and treated night interruption (120 min) pretreated with low temperature from 20th February to 20th May. The results are summarized as follows. 1.With an increment of the period of low temperature, sprouting of Cheju common clove tended to early while bulbil was late. 2. Plant height, leaf length,leaf sheath length and neck diameter were all promoted by exposure to longer low temperature. however common clove of Shanghae wase grew better during natural day than with night interruption. 3. Bulbing was promoted by longer low temperature in common clove and Cheju Jaere common clove. Treatment for 30 and 60 days at low temperature plus 120min.night interruption showed the most significant increases. 4. Plant weight and bulb weight of bulbils decreased with longer low temperature but in common clove they were increased by night interrutpion. 5. The clove number of the shanghae wase bulbil incresed with 30 days low temperature treatment. 6. Yields per 10a of common clove increased more than bulbils and Shanghae common clove when treated for 60 days at low temperature plus 120 min. night interrutption. 7. GA content incresed at the clove enlargement period,but decresed with the approach of the harvest period.

적과시기 및 방법이 온주밀감의 수량 및 과실품질에 미치는 영향

韓海龍,姜宗勳,姜聖根 濟州大學校亞熱帶農業硏究所 1997 亞熱帶農業硏究 Vol.14 No.-

This experiment aimed to establish adequate fruit thinning techniques by comparing and investigating fruit productivity and changes of fruit quality with thinning times and thinning methods. Satsuma mandarin(Citrus unshiua Marc.) cv. ‘Miyagawa Early was used and treatments were 11, the alternate whole branch fruit(buds) thinning(AWFBT), the partially whole tree fruit thinning(PWTFT) and the foliar spray of the chemical fruit thinning agent(FSCFTA:ethychlozate) etc. from the middle of June to early in Sept. The results were as follows ; Ⅰ. The earlier fruit-thinning times was, the higher the ratio of marketable fruit yield was, and the AWTFT and PWTFT in the middle of May, the FSCFTA and PWTFT in June were effective to increase the ratio of marketable yield in this order 2. Thinning of bud in the middle of May required about 50min. to eliminate buds from a tree, it's a big problem. In contrast, FSCFTA(ethycholzate 50mg/l + ethrel 20mg/l) required 3.1min, the shortest working hours for getting rid of buds and the AWFBT was more effective than the PWTFT because of saving the labor efforts to pick and thin fruit. 3. Thinning and FSCFTA methods could be able to harvest fruit earlier and also was good in rind color, but soluble solid and juice sac thickness which indicate the interior quality were not significant. It was thought that this is because leaf-fruit ratio at the harvesting time due to fruit thinning and FSCFTA treatments was less than 25. But in case of sugar-acid ratio, that of the AWFBT treatments showed a little more increse than that of the PWTFT. 4. The number of fruit set in following year was much more in earlier fruit thinning treatments and the AWFBT than in late thinning and PWTFT treatments, respectively. 5. From these results, it was considered that the tree bearing too many flowers in more effective to put the AWFBT at least by the end of June for increse of the ratio of marketable fruit yield, quality fruit and the prevention of the alternate bearing.

各種 土壤 管理가 柑橘品質에 미치는 影響 : Influence of Artificial Mulch during Fruit Development Season 夏秋季의 土壤被覆 效果

韓允三,韓海龍,文斗吉 제주대학교 1974 논문집 Vol.6 No.-

With polyethylene film and straw, artificial mulch from early Aug. to harvest time was experimented in a Citrus orchard on volcanic soil growing nine years old Satsuma mandarin(Citrus unshiu Marcovitch) on trifoliate orange stock. No matter what material is used, mulch delayed loss of soil water. Low soil moisture level desirable for delicious fruit quality was not attained by preventing rain flow to soil with polyethylene film, except only when mulched on already dried soil. While polyethylene film mulch increased soil temperature by 3'C at 10cm depth, straw mulch lowered soil temp. in summer. Change in soil temp. showed no apparent effect on fruit maturity and quality. Dry soil condition accelerated fruit coloring a little, and increased Brix, but decreased fruit weight, and didn't increased Brix-acid ratio. It was concluded that polyethylene film mulch could hardly be practiced to improve Citrus fruit quality in Seogwipo area orchards on volcanic soil.

濟州道에서 Feijoa(Feijoa sellowiana Berg.)의 果實發育에 關한 硏究

朴才昊,韓海龍,白子勳 제주대학교 아열대농업생명과학연구소 1992 아열대농업생명과학연구지 Vol.9 No.-