• 한국작물학회지
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• 제46권1호
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• pp.64-67
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• 2001

Snap bean is a new corp in Korea but believed to have a great deal of potentials for both domestic and overseas markets. The present study was performed to obtain the basic information about growth- and quality-related characteristics and to determinate the optimum seeding date and harvesting time for snap bean. Pod yield was significantly affected by seeding date. The highest pod yield was obtained from March 20 for determinate type and April 4 for indeterminate one, respectively, with the range of 13.0-23.7 t/ha. The pod length of indeterminate type was over 13cm, and the pod length was over 5 grams. The pod width for tested varieties was less than 1.0cm. Considering the pod growth characters such as pod length, pod width, and pod weight, the optimum harvesting time for immature pods of snap bean was supposed to be from 15 to 20 days after flowering. The daily yield of snap bean was begun to sharply increase from 15 days after the first flowering and the maximum yield was recorded at 30 days after flowering. For the accumulated yield, nearly 90% of total yield was obtained in 42 days after flowering.

• 한국작물학회지
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• 제49권1호
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• pp.46-51
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• 2004

The film coated snap bean (Phaseolus vulgaris) seeds with five different coating materials treated with 3% increase in seed weight were planted at sandy loam soil controlled moisture content of 18, 19, 20 and 21 %. The oxygen diffusion rate (ODR) was calculated from the different moisture content soil. The number of normal seedlings, seedling vigor, and seedling capability in field (seed vigor x dry matter weight) were observed at 9 days after planting and compared to the changes of ODR. The germination rate and ODR were sharply decreased simultaneously in the seeds planted at 21 % soil moisture content. Seedling emergence did not occur at all as the soil moisture content increased above 22 %. Hence this value should be considered as the threshold of soil moisture content for seedling emergence. An ODR value under 20% did not influence the percent emergence significantly. The certain difference observing in the emergence at the same ODR was not related clearly to the condition of soil. So it can be assumed that the limit of soil moisture content for the emergence of snap bean was approximately 20%. The value of 18% soil moisture content may be considered as the optimum for snap bean emergence. There was close relationship between the mean value of ODR in different soil moisture contents and the emergence. The germination rates of the seeds coated with the different materials were quite different when the seeds were planted at 21 % soil moisture. Dry weight of the seedlings from film coated seeds was decreased slightly, but the germination rates were not much different from the non-treated control under relatively higher soil moisture content (21 %). Major factor lowering emergence rate was oxygen stress while film coating act as a minor constraint for snap bean sown in excess soil moisture condition.

• Current Research on Agriculture and Life Sciences
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• 제22권
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• pp.1-12
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• 2004

Pod-edible bean or snap bean is a fairly new crop to domestic farmers but the national demand is steadily increasing in recent years along with the development of western food business and change in dietary patterns. At the same time, much efforts are being made to export it to foreign country, mainly to Japan. The amount of seeds introduced from outside is also continuously increasing along with the enlargement of area planted for the crop. Hybridization breeding for the crop has already been started to supply the cheaper and better seeds which will reduce the seed costs and foster the higher income to the farmers. In this experiment, several technologies related with the production of quality seeds are preliminary investigated. Some of the results obtained are summarized as follows; 1. Highly significant interaction was recognized between planting dates and no. of pods per plant and no. of branches but no interaction between planting dates and plant height and no. of nodes on main stem. Days to maturity was proportionally reduced to later planting dates. 2. Rate of viviparous pods and seeds was gradually increased in later planting dates but rate of germination was increased in earlier planting dates with lower germination rate in white seed coat grains than in colored seed ones. 3. Seed yield was higher in the earlier planting dates with a great deal of varietal difference. Early to mid April was considered to he the optimum planting dates for snap bean in Kyungbuk area. High correlation was recognized between seed yield and no. of pods per plant, no. of seeds per plant, and 100 seed weight. 4. Days to flowering was three and seven days longer in Cheongsong, high mountainous area than in Kunwi, somewhat prairie lowland. One hundred seed weight was also higher in Cheongsong than in Kunwi. Rate of viviparous grains, pods, and decayed seeds was higher in Cheongsong but, at the same time, the rate of germination and seed yield was also higher in Cheongsong. 5. One hundred seed weight of KLG5007 increased continuously up to 35days after flowering and decreased thereafter but that of KLG50027 increased to 40days after flowering and slowly reduced thereafter. The content of crude oil reached to maximum at 40 days after flowering and reduced thereafter. The rate of germination in Gangnangkong 1 was the highest, 89.3%, at 35 days after flowering and reduced thereafter while that in KLG50027 reached to maximum, 70.7%. at 40days after flowering and reduced thereafter. Thus, the optimum harvesting time for snap bean was considered to be 35~40days after flowering. 6. The snap bean pods at yellow bean stage easily became viviparous ones under saturated moisture conditions for 24 hours at $25{\sim}30^{\circ}C$. Therefore, it is recommended to harvest pods somewhat earlier than yellow-bean stage and let them do post maturing, especially when it is to be rained.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2000년도 추계 학술대회지
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• pp.191-192
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• 2000

• 한국육종학회지
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• 제40권4호
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• pp.470-473
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• 2008

황협2호는 2000년에 강낭콩 도입유전자원인 KLG50073와 KLG50072를 인공교배하여 얻어진 YK5을 온실과 포장에서 세대단축을 하면서 선발된 계통으로, '05년 3월과 8월에 온실에서 재배하여 생육특성과 협채수량을 검정하였고 수량성이 우수하여 협채용 강낭콩 신품종 "황협3호"로 선정되었다. 1. 신육형은 유한형이며 화색은 백색이고 배축은 녹색이다. 채협기의 협색은 황색이고, 성숙시 협색은 담황색이다. 협모양은 C자형으로 약간 굽었고, 종피는 백색이다. 2. 개화일수는 43일, 성숙일수는 49일 이었고, 경장은 41 cm, 주경절수 8.7개, 분지수 4.4개, 협수는 27개이었으며, 100립중은 20.4 g이었다. 협채수확기의 협모양은 둥글며, 길이는 비슷하고 다소 가는 편이다. 3. 단백질과 지방은 각각 19.0%, 0.5%였으며, 당함량 중 Sucrose와 Glucose는 각각 3.2%, 18.6%였고, Vitamin C의 함량은 건조시료 100 g중 157.8 mg이었다. 특히 후기까지 개화 및 착협이 양호한 지속 수확형이며 다수성 계통이었다. 4. '04춘계 '05춘계 및 추계에 온실에서 3회 재배한 협채 수량 평균은 22.43톤/ha로 강낭콩 1호보다 11% 증수되었다. 5. 황협2호는 시설재배로 전국에서 재배될 수 있으며 결주 방지를 위한 육묘이식 재배와 생육기간 내내 충분한 토양수분 유지가 필요하다.

• 한국대기환경학회지
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• 제8권1호
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• pp.13-19
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• 1992

This study was conducted to determine the efficacy of using uniconazole,[(E)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazole-1-yl)-1-penten-3-ol)] as a phytoprotectant against $SO_2$ injury in snap been (Phaseolus vulgaris L. 'Strike'). Thirteen days prior to $SO_2$ fumigation, plants were given a 100 ml soil drench of uniconazole solution at concentrations of 0.02, 0.10, 0.25 and 0.50 mg/pot. All four uniconazole concentrations were significantly effective in providing protection against $SO_2$ exposure(3 h at 1.5 ppm), but uniconazole treatment above 0.02 mg/pot severely reduced stem elongation, leaf enlargement, flowering date and pod number and weight. Uniconazole treatment had little or no effect on stomatal conductance but reduced transpiration rate on a whole plant basis by nearly 40%. This may reflect an alteration in canopy structure by reducing stem elongation and leaf enlargement. Although uniconazole did not increase the activities of superoxide dismutase(SOD) and peroxidase(POD) in non-$SO_2$-fumigated plants, it significantly increased those enzyme activities in $SO_2$-fumigated plants. Chlorophyll concentration on the basis of unit area was increased 50-60% by uniconazole. However, the difference was not detected on the basis of dry weight. $SO_2$ increased variable chlorophyll fluorescence (Fv) 48% after 1.5 h of exposure in non-uniconazole treated plants but decreased Fv in the plants after 3 h of exposure. By appliing uniconazole, it was possible to maintain high Fv values in the latter group of plants. These results suggest that the phytoprotective effects of uniconazole are related to its growth-retarding properties as an anti-gibberellin as well as the increase of activites of free radical scavengers such as SOD and POD.

• 농업과학연구
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• 제19권2호
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• pp.161-169
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• 1992

오존에 대(對)한 강낭콩 (Phaseolus vulgaris L. 'Strike')의 내성(耐性)을 증대(增大)시키고자 생장(生長) 왜화제(矮化劑)인 uniconazole과 antiethylene제(劑)인 STS를 강남콩에 단독(單獨) 또는 복합처리(複合處理)하고 오존을 처리(處理)하였던 바 다음과 같은 결과(結果)를 얻었다. 1) Uniconazole은 0.005 mg/pot에서 부터 유의성(有意性) 있게 식물체(植物體)를 왜화(矮化)시켰으며, 엽록소(葉綠素)의 함량(含量)을 높혔고, 0.025 mg/pot에서는 기공저항성(氣孔低抗性)을 높혔다. 식물체(植物體)의 왜화정도(矮化程度)가 클수록 오존에 의한 피해경감(被害輕減) 효과(效果)가 큰것으로 나타났다. 2) STS는 식물체(植物體)에 ethylene 발생(發生)을 조장(助長)하였으나 uniconazole과 같은 생리적(生理的) 변화(變化)를 초래(招徠)하지 않고 0.6 mM의 살포(撒布)에서 오존의 피해(被害)를 현저(顯著)히 경감(輕減)시켰다. 3) Uniconazole과 STS를 복합처리(複合處理)함으로써 단독처리(單獨處理)에 비(比)하여 식물체(植物體)의 왜화(矮化)를 최소화(最小化)시키고 오존에 대(對)한 내성(耐性)을 더 증대(增大)시킬 수 있었다. 4) Uniconazole의 오존 내성(耐性) 증대효과(增大效果)는 생장왜화(生長矮化)와 함께 free radical scavenger인 SOD와 POD의 활성(活性)을 높혀준데 기인(起因)하였다. 5) STS 역시 antiethylene 역할(役割) 이외에 SOD와 POD의 활성(活性)을 다소 높혀줌으로써 오존에 대한 내성(耐性)을 증대(增大)시켜준 것으로 인정(認定)된다.