湖南地域에서의 三要素 施肥에 따른 水稻品種群間의 水量反應 解析硏究

具滋玉,金容在,李載窪 全南大學校 農漁村開發硏究所 1978 農業科學技術硏究 Vol.13 No.-

統一系 水稻 品種群의 多收性과 擴地域性을 湖南地域에서 再判斷하고, 그 妥當性의 科學的인 根據가 어떤 增收要因에 의하여 成立되는 가를 日本型 品種群 對比로 分析 檢討하기 위하여 1970年 以後 6個月間에 걸쳐 湖南地域內의 各 硏究機關에서 遂行한 試驗成績을 綜合整理하고 分析한 結果, 다음의 結論을 얻었다. 1. 窒素·燐酸·加里 增施에 따라 兩品種群 共히 高度의 有意性 있는 收量增大를 보였다. 窒素에 의하여는 兩品種 모두 直線的인, 燐酸·加里에 의하여는 曲線的 收量增加를 招來하는 結果였는데, 窒素의 境遇 統一系는 穗數와 顯花數가 增大됨으로써, 그리고 日本型은 穗數의 增大를 通하여 增收된 것이다. 燐酸의 경우는 統一系에서 穗數와 顯花數, 日本型은 顯花數와 登熟向上을 通하여, 그리고 加里增肥에 따라 統一系는 顯花數, 日本型은 穗數와 粒重을 通하여 收量을 增加시켰다. 2. 施肥에 따른 增收效率은 燐酸이나 加里보다 窒素가 높은 편이었고, 日本型보다는 統一系의 收量反應이 높았는데 이는 施肥反應으로서의 增收幅보다 基本生産性의 差異에 더욱 의존되는 傾向이었다. 3. 3要素 施肥에 따른 收量과 構成要素間의 單純相關 分析結果, 統一系의 收量은 面積當 顯花數가, 日本型에서는 面積當 穗數가 높은 正의 相關을 보였다. 즉 日本型의 境遇, 穗數와 顯花數間의 逆相關 때문에 面積當 顯花數의 收量相關이 떨어졌다. 이는 先行形質들(穗數, 顯花數)의 效率이 後行形質들(登熟, 粒重)의 效率보다 收量에 關係가 큰 것으로 나타났다. 4. 3要素 增施에 따른 收量成立特性(重回歸·重相關)은 다음과 같았다. 統一系 : Y=20.3xi**+3.9x2**+22.4x3**+3xt**-783.1 日本型 : Y=21.3xl**+1.5x2NS+7.3x3NS+0.18x4-91.7 5. 偏相關係數 및 寄與度 分析結果 統一系는 顯花數>穗數>粒重>登熟의 順으로 表示되었으나 日本型의 境遇에는 登熟>穗數>顯花數>粒重의 順으로서, 다른 分析結果와 달리 登熟의 收量에 對한 效果(直接效果)가 큰 傾向이었다. To compare of scientific reasonabilities of the high-yielding characters and broad adaptability between Tongil and Japonica cultivars in Honam district, the mode of response of yield components in the constitution of yield to N,P,K fertilization was determined by linear and quadratic regression equations, multiple regression equations, simple and multiple correlation coefficients, and partial correlation coefficients(path coefficients) and contribution ratio analysis, respectively. Datas for the analysis were collected from the annual reports of the rural developmental research institutes in Honam discrict(1970~1976). The results are summarized as follows: 1. According with N fertilization, the yields of both cultivars were linearly increased, through the increase of no. of panicles per hill and no. of spikelets per panicle(in Tongil cvs.) and no. of panicles per hill(in Japonica cvs.). With P and K, yield of both cultivars were increasing in quadratic responses. 2. Among fertilizers, nitrogen was most superior effect to make yield increments. And the higher yielding in Tongil cvs. than in Japonica was rather conducted from the differences in basic productive potentials than the fertilizer responses btw. two cultivars. 3. Simple correlation coefficient analysis showed significant correlation btw. yield and no. of spikelets per an area(in Tongil cvs.), and no. of panicles per hill(in Japonica cvs.). 4. Multiple regression analysis of the effect of yield components on the yield constitution indicated, in Tongil cvs.. inevitability of all of the components in explanation of yield response to fertilization. However, in Japonica cvs., indicated the effect of no. of panicles per hill only as follow. Tongil cvs.: Y=20.3xi**+3.9x2**+22.4x3**+3xt**-783.1 Japonica cvs: Y=21.3xl**+1.5x2NS+7.3x3NS+0.18x4-91.7 5. As results of partial correlation coefficients(path coefficients) btw. the yield and its each components, Tongil cvs. showed the closely related pattern with other analysis above, namely: No. of spikelets per panicle>No. of panicle per hill>Wt. of 1,000 grains>Grain maturity ratio in their order of contribution potentials(direct effect ratio) to the yield; However, Japonica cvs. showed the importance in direct contribution effects of the grain maturity ratio to the yield, to recognize such an order of contribution potentials, namely: Grain maturity ratio>No. of panicles per hill>No. of spikelets per panicle>Wt. of 1,000 grains.

栽植密度와 施肥量 調節에 의한 水稻 두 品種의 移秧 省力化 可能性 硏究

盧載昇,具滋玉,許詳萬 順天大學校 1983 論文集 Vol.2 No.1

本 硏究는 水稻作에 있어서 栽培의 省力化 可能性을 栽培技術面에서 探索하기 위하여 收量의 減少없이 增肥에 따른 栽植密度減少의 限度推定과 그 타당성 해석을 하고져 試圖되었다. 試驗은 1980年度 全南大學校 試驗畓에서 水稻品種인 "密陽23號"와 "사도미노리"를 供試하였으며, 窒素-燐酸-加里 15-7-8kg ai/10a를 標準으로 하는 O(N-P-K)區, ½(N-P-K)區, 1(N-P-K)區 및 2(N-P-K)區의 4水準 施肥量 處理에 各各 坪當 216, 156, 108, 72, 49, 36, 27, 18株의 8水準 栽植密度處理를 供試하였다. 試驗年度는 全國的으로 低 溫과조의 障害가 극심하였으나 本 試驗地는 비교적 피해가 적은 지역여건을 구비하고 있어서 被害가 적었던 地域의 하나였다 결과를 要約하면 다음과 같다. 1. 密陽23號와 사도미노리의 수량 및 수량구성요소들은 施肥量 및 栽植密度에 따라 고도의 유의적인 분산反應을 보였다. 2. 增肥에 따라 密陽23號는 坪當 27株까지의 疎植에서 減收가 없었으나 사도미노리는 49株 以下의 疎植에서 減收되므로 多肥疎植의 適應性은 密陽23號에서 높았다. 3. 增肥에 의한 穗數의 確保能力은 密陽23號에서 認定되었고, 增肥密植에 의한 결주손실률 또한 密陽23號에서 큰 경향이었으며 種內 競合에 따른 密植適應性은 사도미노리가 높았으나 增肥疎植適應性은 密陽23號가 높았다. 4. 增肥에 따른 面積當 潁花數增加는 密陽23號에서 有意的으로 높았다. 5. 登熟率은 사도미노리가 大體로 높은 傾向이었으나 坪當 49∼36株의 節圍에서는 두 品種 모두 一定한 水準이었으며, 增肥에 의하여 密陽23號는 直線的으로, 그리고 사도미노리는 완만한 曲線的으로 增加하는 反應差異가 있었다. 6. 千粒重의 變異는 密陽23號가 全般的으로 높았으나 坪當 36∼156株 節圍內에서는 反應差가 없었으며 增肥에 따른 密陽23號의 不安定한 反應差에 대하여는 앞으로 硏究가 요구된다. 7. 出穗期의 草長, 最高分蘖期의 分蘖數, 出穗期 上位3葉의 葉綠素含量 變異等의 生長反應에 있어서도 大體로 收量 및 收量構成要素 反應과 類似하게 密陽23號의 增肥疎植適應性을 立證하였으나 出穗特性에서는 有利性을 認定할 수 없었다. 8.增肥疎植에 따른 經營的 側面에서의 可能性 解析 硏究가 앞으로 계속될 必要가 있다. The study was conducted to estimate the labor-saving feasibility in rice culture control (reduction) of transplanting densities with added fertilization. The experiments were located in the experimental farm of agricultural college of Chonnam National University, 1980 by using of two rice cultivars "Milyang 23" and "Sadominori". The treatments were varied in four fertilization levels as zero (N-P-K), ½(N-P-K), 1(N-P-K), and 2(N-P-K) and eight transplanting densities as 216, 156, 108, 72, 49, 36, 27 and 18 hills per 3.3㎡ Detected responses in growth, yield and yield components from the experiments could be summarized as follows. 1. Both experimented rice cultivars showed statistically significant variances in yield and yield components as affected by fertilization and planting density treatments. 2. Under 2(N-P-K) levels, Milyang 23 showed no reduction in yield untill 27 hills per 3.3㎡, however Sadominori untill 49 hills, respectively. 3. Under 2(N-P-K) levels, the increament in panicle number was detected at cv. Milyang 23, however loss in hill number by intra-specific competition of rice plants at densing of planting densed planting spaces was higher than in cv. Sadominori. 4. A significant increase in spikelet number per a given area was recognized at cv. Milyang 23. 5. Increasing tendencies in ripeness rates by additional fertilization was detected as linear function at cv. Milyang 23, however guadratic at cv. Sadominori. 6. Under 36∼156 hills per 3.3㎡, no significant differences in grain weights was detected, and more detailed studies are asked as for unstabilities in ripeness at cv. Milyang 23. 7. Variations in plant heights, tillering numbers, chlorophyll contents at heading stages make reasonable data for Labor-saving feasibility in Milyang 23 by reduction of transplanting densities with added fertilization, however, not in flowering pattern. 8. Furthermore studies with farm managemental sides showed by followed.

濕沓 作土層 變型條件에서의 增肥에 따른 水稻 收量性 變異

李殷雄,具滋玉 서울大學校 農科大學 1977 서울대농학연구지 Vol.2 No.2

By use of 1/2500 are (ca. 100㎡) sized plastic pots, the trial was conducted to lay-out the variances and implemented effects in rice yield and yield components as affected by the amount of fertilizer application, with or without composts accompaniment in 4 differently rearranged types of top and subsoil of paddy field. Experiment paddy cultivar was "IRI-317", and was transplanted by 4 hills per pot, and 1 plants per hill under the design of "split-split-plot design." Three levels (A₁, A₂, A₃) of fertilization were established as main, two composts (B₁, B₂) as sub, and four types of soil rearrangements (C₁, C₂, C₃, C₄) as sub-sub-treatments. Results from the above were as follows. 1. Between top and sub soils experimented, no other significant differences in the fertility components than the contents of substitutable cations were found. 2. Culm and panicle lengths were increased according to increment of the amount of fertilizer application with composts accompaniment, and also mostly in the pot of complete top-soils among other pots. 3. As similar with the culm and panicle length, the number of panicles per plant was increased with the increment of the amount of fertilizer application, especially high with the accompaniment of composts. Comparing with the subsoil, panicle number per plant was more abundantly detected in the top-soil. 4. The other yield components were mostly not varied with the treatments, however the net value of components per plant showed quite similar pattern of variances as the number of panicles per plant. 5. Rice yield, either paddy or brown rice per plant, was significantly increased by the increment of fertilizer level, and by accompaniment of composts. Also, types of differently rearranged paddy soils showed bigger variances of rice yield per plant in the level of standard fertilizer application than in the 1.5 and 2 times more as the standard. In these respects, the problem of low yielding of paddy rice in the rearranged soils could be implemented by the increment of the amount of fertilizer application with the accompaniment of composts.

전남쌀의 가격차별화 현황과 발전방향

이기웅,허상만,박준근,구자옥 全南大學校 農業科學技術硏究所 1996 農業科學技術硏究 Vol.31 No.-

Competitiveness of rice comes from higher quality and lower price. The latter accrues from cost reduction which is in turn possible through the economies of scale. Economies of scale is, however, very difficult to achieve because of small-scaleness of rice acreage in Chonnam Province and expensive land price. Therefore, rice competitiveness should be complemented by utilizing quality differentiation both vertically and horizontally. Chonnam rice is somehow treated as a lemon good among the metropolitan consumers like in Seoul. It is a problem to be coped with. According to our research results, Chonnam rice carried the lowest price in the rice markets of the big cities. In Taegu city, Chonnam branded rice was not sold at the department stores, and it was sold only at one place in Pusan. In other words, Chonnam rice is treated as a lemon good and shunned by some localities across the nation. In order to remedy this unfavorable situation, Chonnam rice should be differentiated both vertically and horizontally in terms of variety selection, storage, milling and processing, packaging, etc. Especially, development of new brands and quality guarantee is ncccss. Besides, both publicizing and improving rice quality should be emphasized to promote Chonnam rice at the national level.

除草劑 oxyfluorfen과 bensulfuron에 대한 水稻 品種의 抵抗性 檢定

Ja Ock Guh(具滋玉),Young Man Lee(李榮萬),Sung Uk Han(韓盛旭),Chang Suk Kim(金昌錫) 한국육종학회 1989 한국육종학회지 Vol.21 No.1

The study was conducted to select the resistant and susceptible rice varieties to oxyfluorfen [2-chloro-4-trifluoromethyl phenyl-3-ethoxy-4-nitrophenyl ether] and bensulfuron [methyl-2-((4,6-dimethoxy pyridin-2-yl) aninocarbonyl) aminosulfonyl-methyl benzoate] among 400 germplasms. Mushakdanti, Weld Pally, NP. 125, K-1, CI 5483-2, Bonsaiookuro were selected as the most susceptible, and Aichiasahi, Chokoto, Ahgabyo and IR 3941 as the most resistant rice varieties to oxyfluorfen, respectively. H 93(3)F. A., H 94(9)F. A., Padilabou alumbis, and IR 1846 were selected as the most susceptible, and Kunmakosa-early, Taichung T.C.W.C., UCP 28, Chinsurah BoroⅡ, Fukunohana and Homarenishiki as the most resistant rice varieties to bensufuron, respectively.

器內培養에서 oxyfluorfen 및 bensulfuron-methyl에 대한 벼 品種의 耐性差異

Ja Ock Guh(具滋玉),Young Man Lee(李榮萬),Young Jin Kim(金永鎭) 한국육종학회 1988 한국육종학회지 Vol.20 No.4

The study was conducted to certify the differential tolerance response of selected rice cultivars, namely cv. Aichiasahi and Mushakdanti to oxyfluorfen, and cv. Chinsurah Boro Ⅱ and IR 1846-284-1-1 to bensulfuron-methyl, in In Vitro culture process. Isolated mesophyll single cells of the tolerant cultivar (Aichiasahi) were initially classified rather clearly in healthy cell number than in total cell number at concentration of 10⁻⁴M oxyfluorfen. However, in case of bensulfuron-methyl no clear classification in susceptibility between the tolerant and the susceptible cultivars even at concentration of 10⁻³M. Suspension cultured cells of the tolerant cultivar (Aichiasahi) were initially classified at concentration of 10⁻⁵M oxyfluorfen in total cell number, but a shade of difference in survival rate was detected from the toterance cultivar (Chinsurah Boro Ⅱ) at concentration of 10⁻³M bensulfuron-methyl.

Oxyfluorfen 및 bensulfuron-methyl의 處理時期에 따른 벼品種 및 主要 雜草種의 耐性反應

Ja Ock Guh(具滋玉),Young Man Lee(李榮萬),Young Jin Kim(金永鎭),Chang Suk Kim(金昌錫) 한국육종학회 1988 한국육종학회지 Vol.20 No.4

Rice cultivars, Aichiasahi vs. Mushakdenti for oxyfluorfen and Chinsurah Boro II vs. IR 1846 for bensulfuron-methyl were experimented as the toterant vs. susceptible among other selected cultivars, respectively. The study was intended to know the difference in selectivity of both selected cultivars comparing with principal paddy weed species, and in relation with application time. -From the trial of oxyfluorfen by per-emergece soil application, ED₅₀ in rice cultivars indicate a highly significant tolerance to weed species, and rice cv. Aichiasahi showed higher level in ED₅₀ than that of cv. Mushakdanti. -From the trial of oxyfluorfen by post-emergence foliar application, Cypercus serotinus, Scirpus juncoides, Eleocharis kuroguwai and rice cv. Aichiasahi were recognized as rather tolerant than others. -From the trial of bensulfuron-methyl by pre-emergence soil application, rice cultivars showed more than 95% level in survival rate at 0.05kg ai/ha, however weed species were killed completely. Also the higher tolerance was detected from the tolerant cv. Chinsurah Boro Ⅱ comparing to cv. IR 1846. -From the trial of bensulfuron-methyl by post-emergence foliar application, no big difference in selectivity was evaluated between not only two varieties, and but also among rice and weed species.

고대 화경수누법(火耕水耨法)을 응용한 직파 논[直播畓] 제초법

구자옥(Ja Ock Guh),국용인(Yong In Kuk) 韓國雜草學會 2011 Weed&Turfgrass Science Vol.31 No.1

제초를 위한 화경누수법, 즉 화누법은 고대 중국의 『제민요술』에서 유래되어 16~18세기에는 우리나라의 『위빈명농기』·『농가집성』·『과농소초』에 옮겨진 제초법이다. 직파된 벼논에서 벼와 잡초종들이 입모된 이후에 군락 초관위로 불놓아 태워진 연후에 물을 관수하므로써 잡초를 제거하고 선별적으로 벼를 안전하게 살려 재생시키는 방법이다. 불로 태우는 대신에 이에 걸맞는 비선택성이며 비이행성인 제초제 (예, paraquat, oxyfluorfen 등), 또는 방사선 등을 처리하여 손쉽고 안전하게 제초문제를 해결하는 방식으로 응용할 수 있을 것이다. It was a method of weed removing, called as whagyeongsoonoobeob. Namely, the Hwanoobeob was the weeding method came from 『Jeminyosool』 in old China, and had been descended to 『Wibinmyeongnonggi』, 『Nonggajibseong』 and 『Gwanongsocho』 in the 16∼18th century of our country. The method was applied to rice paddy after applying direct-seeding, burning by unit before watering to remove weeds and to save rice plants. It would be applied with a method of using non-selective herbicide such as paraquat and oxyfluorfen, or radiation treatment, as a simple and safe weed removing method.

中華民國 雜草學會 參席報告

具滋玉(Guh Ja Ock) 한국잡초학회 1988 Weed&Turfgrass Science Vol.8 No.3

한국(韓國)의 벼(稻)농사(農事) 재배(栽培) 및 품종(品種) 변천사(變遷史) -근대화과정(近代化過程)을 중심(中心)으로-

구자옥 ( Ja Ock Guh ),이은웅 ( Eun Woong Lee ),이병열 ( Byong Lyol Lee ) 한국농업사학회 2009 농업사연구 Vol.8 No.2