감자 ‘Solara’ 경삽묘의 육묘기간에 따른 묘소질 및 수경재배에서의 수량 특성

강형식,김성용,김태균,홍순영,강영길 한국작물학회 2017 한국작물학회지 Vol.62 No.1

이 시험은 ‘솔라라’ 품종의 종자생산을 위해 분무경 수경재배에 적합한 묘를 구명하고자 2015년 3월 16일 배양순화묘 등 8처리의 묘를 분무경 베드에 정식하여 정식 후 70, 78일에 각각 생육과 수량특성을 조사하였다. 경장은 경삽15일묘와 배양순화묘가 작은 편이었고 경삽묘의 육묘일수가 늘어남에 따라 길어지는 경향이었다. 생체중도 경삽 40 일묘가 주당 122 g으로 가장 무거웠고 무발근묘와 배양순화묘는 가장 가벼웠다. 1차 복지는 경삽 35일묘에서 주당12.9개로 가장 많았고 2차 복지는 경삽 35일묘, 배양순화묘, 경삽 30일묘에서 많이 발생하였다. 10주당 총괴경수는배양순화묘가 145개로 많았으나 3∼50 g(상품) 괴경수는경삽 35일묘가 108개로 가장 많았고, 괴경 무게는 경삽 35 일묘가 1,947 g으로 가장 무거웠고 다음으로 경삽 30일묘였다. ‘솔라라’ 품종 수경재배 시에는 경삽한 후 30일∼35 일(경장 15 cm, 마디 12절) 묘로 정식하는 것이 수량성을높일 수 있었다. This study was conducted to dentify the optimum plantlet type of ‘Solara’ potatoes (Solanum tuberosum L.) for growth in an aeroponics system. Plantlets of ‘Solara’ were transplanted on March 16, 2015 in a greenhouse, and growth and yield characteristics were investigated at 70 and 78 days after transplanting, respectively. Stem length was shorter in plantlet of 15-day-old stem cuttings and acclimatization of culture, and the stem length of plantlets of stem cuttings tended to increase with increasing stem cutting age. The fresh weight of plants was the highest in the plantlets of 40-day-old stem cuttings and the lowest in non-rooted stem cuttings and acclimatization of culture. The highest number of first stolons was obtained in 35-day-old stem cuttings. The number of second stolons was the highest in plantlets of 35-day-old stem cuttings, acclimatization of culture, and 30- day-old stem cuttings. The total number of tubers was higher in plantlets of 35-day-old stem cuttings and acclimatization of culture, and the number of tubers above 3 g was the highest in plantlets of 35-day-old stem cuttings. The weight of tubers above 3 g was the heaviest in plantlets of 35-day-old stem cuttings(1,947 g per 10 plants), followed by plantlets of 30-day-old stem cuttings. These results indicate that plantlets of 30 to 35-day-old stem cuttings could be the best for production of ‘Solara’ potato tubers in an aeroponics system. Keywords : acclimatization of culture, aeroponics system, non-rooted stem cutting, Solanum tuberosum, tuber, stem cutting

감자 ‘Solara’ 경삽묘의 육묘기간에 따른 묘소질 및 수경재배에서의 수량 특성

강형식,김성용,김태균,홍순영,강영길 한국작물학회 2017 한국작물학회지 Vol.62 No.1

This study was conducted to dentify the optimum plantlet type of ‘Solara’ potatoes (Solanum tuberosum L.) for growth in an aeroponics system. Plantlets of ‘Solara’ were transplanted on March 16, 2015 in a greenhouse, and growth and yield characteristics were investigated at 70 and 78 days after transplanting, respectively. Stem length was shorter in plantlet of 15-day-old stem cuttings and acclimatization of culture, and the stem length of plantlets of stem cuttings tended to increase with increasing stem cutting age. The fresh weight of plants was the highest in the plantlets of 40-day-old stem cuttings and the lowest in non-rooted stem cuttings and acclimatization of culture. The highest number of first stolons was obtained in 35-day-old stem cuttings. The number of second stolons was the highest in plantlets of 35-day-old stem cuttings, acclimatization of culture, and 30- day-old stem cuttings. The total number of tubers was higher in plantlets of 35-day-old stem cuttings and acclimatization of culture, and the number of tubers above 3 g was the highest in plantlets of 35-day-old stem cuttings. The weight of tubers above 3 g was the heaviest in plantlets of 35-day-old stem cuttings(1,947 g per 10 plants), followed by plantlets of 30-day-old stem cuttings. These results indicate that plantlets of 30 to 35-day-old stem cuttings could be the best for production of ‘Solara’ potato tubers in an aeroponics system.

Propagation by Leafy Stem Cuttings Containing Xylem of Populus alba × P.glandulosa Clone Bongwha1

Hak Gon Kim,Seong Hyeon Yong,김형호,최명석 강원대학교 산림과학연구소 2022 Journal of Forest Science Vol.38 No.4

The study was conducted to establish a method for the proliferation of hybrid poplar (P. alba × P. glandulosa) clone Bongwha1, an excellent biomass species. It was found that to collect the cuttings of Bonghwa1, it was necessary to use the main stem rather than the axillary branch. Stem growth by green-wood cuttings showed a tendency to decrease as the length of the collected cuttings increased, but the survival rate was low. Therefore, modified leafy stem cutting was attempted to increase the survival rate of the cuttings. In the modified leafy stem cutting method, 4 leaves were included in the cuttings, and especially, cuttings were performed using cuttings containing 2-4 cm xylem parts. Leafy stem cutting increased root growth and the number of stems, as well as the survival rate of hybrid poplar clone Bongwha1 compared to green-wood cuttings. The root growth of the leafy stem cutting poplar was better as there was more xylem part. Using two-year-old nursery stocks, the leafy stem cutting was used to produce about 66 cuttings. This study is expected to contribute to the mass propagation of high-quality nursery stocks.

절화 장미의 줄기 절단 방법에 따른 수분흡수량의 차이

주나리(Na Ri Joo),이정아(Jung A Lee),박천호(Chun Ho Pak),서정남(Jung Nam Suh) 한국원예학회 2004 원예과학기술지 Vol.22 No.2

절화의 절단방법과 수송 유무에 따른 수분흡수량의 차이를 측정하여 최적의 절단법에 대해서 알아보고자 절화장미 ‘Calipso’와 ‘Vital’을 대상으로 7가지 절단처리 방법을 작용하였다. 15℃와 25℃ 온도에서 ‘Calipso’ 절화의 절단법에 따른 수분흡수량은, 깨끗한 사선으로 절단한 처리의 흡수량이 가장 많았고 거친 수평으로 절단한 처리의 흡수량이 가장 적었다. ‘Vital’ 장미의 수송유무에 따른 수분흡수량은 모의수송 처리구의 경우 깨끗한 사선으로 절단한 처리의 수분흡수량이 거친 수평으로 절단한 처리에 비하여 유의성이 있었고 생체중도 깨끗한 사선의 절단면이 거친 수평 절단면 처리에 비해 무거워 그 차이가 뚜렷하였다. 반면, 모의수송하지 않은 처리구에서는 두 처리구 간의 흡수량과 생체중에서는 유의성이 없었다. 또한 수분균형은 5일째부터 모든 처리구에서 흡수량보다 증산량이 많아져 절화의 수분균형이 무너졌다. 또한 절단면적에 따른 수분흡수량의 차이에 대해 알아보기 위해 추가적으로 실시된 실험에서는 절단 면적이 넓을수록 수분흡수량이 선형적으로 증가함을 알 수 있었다. To optimize stem-end cutting method under transport stimulation conditions, water uptake potential was investigated in Rosa x hybrida, ‘Calipso’ and ‘Vital’ roses. Seven stem-end cutting methods were applied to roses with or without transport simulation. During storage at 15℃ and 25℃, ‘Calipso’ rose showed largest water uptake by treatment of sharp-diagonal cut, while least water uptake by rough-horizontal stem-end cutting at both the temperatures. In the experiment of transport simulation combined with cutting treatments using ‘Vital’ roses, water uptake was significantly higher in sharp-diagonal treatment than in rough-horizontal treatment after transport simulation. Fresh weight was heavier by sharp-diagonal stem-end treatment than by rough-horizontal stem-end treatment. In contrast, there was no significant difference in water uptake and fresh weight between the cutting treatments when roses were not transport-simulated. Starting from the 5th day of the treatment, water balance began to reversed when water transpiration rate was higher than uptake in each treatment. Additional experiment on cutting area indicated that water uptake tended to increase in proportion to cutting areas.

부적합 엽맥편이 궐련의 연소중 물리적 특성에 미치는 영향

김수호,박진원,김종열,이문수,Kim Soo-Ho,Park Won-Jin,Kim Jong-Yeol,Rhee Moon-Soo 한국연초학회 2006 한국연초학회지 Vol.28 No.1

In order to improve the final product quality, tobacco industry has gradually decreased the size and number of steams in the cigarette. Especially, steams bigger than $3{\times}3$ mm($length{\times}thickness$) and $2{\times}10$ mm($width{\times}length$) are not acceptable in the process as objectionable stems. A total number of 12 samples where the $length{\times}tickness$ samples were prepared by decreasing the present sample ($3{\times}3$ mm) with 1 mm up to $1{\times}1$ mm, and the $width{\times}length$ samples were prepared by decreasing the present sample ($2{\times}10$ mm) with 2 mm up to $2{\times}6$ mm for the stems in leaf and stems in expanded cut-tobacco were prepared to apply a fire ball drop test using stems. In addition, cigarettes were produced for these stems in order to analyze the forced fire ball drop including the burning, encapsulation and unencapsulation pressure drop and a single or unspecified direction combustion. Based on the results of the test, it was evident that the fire ball drop in the stems in expanded cut-tobacco presented a lower level than that of the stems in leaf. Also, the stems in expanded cut-tobacco presented a larger swelling and higher burning for a single direction than that of the stem in leaf. In addition, it was considered that the management criteria for objectionable stems should be changed as $3{\times}3$ mm and $2{\times}8$ mm for the $length{\times}thickness$ and $width{\times}length$ sample, respectively, in both steams in leaf and expanded cut-tobacco.

모시의 吸枝繁殖 및 줄기揷木 方法

Sang Kon Kim(金祥坤),Jong Jin Hwang(黃鐘珍),Dong Hee Chung(鄭東熙),Byung Sun Kwon(權炳善) 한국육종학회 1993 한국육종학회지 Vol.25 No.1

Rooting ratio of sucker was investigated at the different levels of cutting time and length, and that of stem was also investigated at the various levels of cutting time, part of stem, duration of storage and length of stem in ramie. Higher rooting ratio were observed in the cutting of June 28 rather than of the late March or early April, and in longer suker rather than shorter among 2cm, 3cm, 4cm and 5cm long suker, but total number of rooting suker was more in 2cm or 3cm than 5 cm-long-sucker, in the sucker propagation of ramie. In stem cutting higher rooting ratio were observed in 5 day after harvesting time, in first part from the ground, in shorter storage duration, and in longer stem cutted. But total number of rooting stem was most in 7.5cm long stem. Also there are highly significant correlationship(r=0.9302) between weight of stem and rooting ratio.

삽목배지 및 시기에 따른 국내육성 수국 두 품종의 발근 및 줄기생육

유웅,김선국,유용권 한국화훼학회 2023 화훼연구 Vol.31 No.4

This study was conducted to investigate the effects of cutting media and times on rooting in domestic hydrangea cultivars ‘Morning Star’ and ‘Pink Ari’. In the cutting media experiment, cocopeat, perlite, peatmoss, and cocopeat + cocochip were used, and stem tip cuttings of ‘Morning Star’ were carried out on 15 July. In the cutting times experiment, stem tip cuttings were carried out in April, June, and August. As a cutting media, a mixed medium of cocopeat and cocochip had the most negative effect on rooting. There was no statistical difference in rooting rate and root length among other media, but the number of roots was more in cocopeat than in perlite and peatmoss. Therefore, it was found that it was the most effective for rooting to use the cocopeat as a medium in cutting of domestic hydrangea ‘Morning Star’. Regardless of cutting times, the rooting rates of ‘Morning Star’ were high at 83 - 90%, which was not statistically significant. But, the number of roots and fresh weight of roots increased the most when cutting was taken in June than in April and August. And, the shoot growth such as length of new shoots and number of leaves were the most effective in cutting taken in June. In cutting time experiment of ‘Pink Ari’, the rooting rate was higher in cutting taken in June and August than in April cuttings, and the number of roots and fresh weight of roots were the best in the June cuttings at 61.4 and 0.31 g, respectively. Also, overall shoot growth was better in June cutting than in April and August cutting. Therefore, June cutting was more effective for rooting and shoot growth than April and August cuttings in domestic hydrangea ‘Morning Star’ and ‘Pink Ari’.

삽목시기, 삽수 채취 부위 및 마디수가 겨울딸기 지삽의 발근에 미치는 영향

강영길,고미라,강시용,류기중 韓國藥用作物學會 2005 한국약용작물학회지 Vol.13 No.3

2002년 6월 26일, 8월 3일 및 9월 4일에 당년 발생한 덩굴에서 정부 중부 기부의 2마디씩 채취하여 삽목하였고, 2002년 7월 10일에 삽수의 마디수를 1~4개로 달리하여 삽목하여 겨울딸기의 발근 및 신초생육을 조사한 결과는 다음과 같다. 발근율은 8월 2일 삽목구에서 69.6%로 가장 높았고 근장은 6월 26일 삽목구에서 23.1 cm로 가장 길었다. 9월 4일 삽목구의 발근율 및 신초 생육이 현저히 떨어졌다. 삽수 채취 부위별 발근율은 덩굴 중간부위에서 55.4%로 가장 높았으며 그 다음이 정단부위에서 45.6%이었고 기부에서 25.4%로 가장 낮았다. 다른 형질들은 삽수 채취부위에 따른 차이가 없었다. 발근율과 신초발생률은 삽수마디수에 따른 차이가 없었으나 삽수당 근수 및 뿌리 건물중, 신초 생육은 삽수마디수가 많을수록 증가되었다. This study was conducted to determine effects of cutting date, cutting position, and node number on rooting of Rubus buergeri Miquel. Apical, medial, and basal parts of the vines emerged in 2002 were cut on June 26, August 2, and September 4, in 2002. Vine pieces with one to four nodes taken from the medial parts of the vines were also cut on July 10. The greatest rooting (69.6%) occurred in cuttings taken on August 2. Cutting taken on June 26 had the longest roots (23.1 cm). Rooting and new shoot growth markedly decreased at September 4 cutting. The greatest rooting (55.4%) occurred in cuttings taken from medial part of the vines and followed by apical parts (45.6%), and basal parts (25.4%). The other traits were not significantly affected by cutting position. Rooting percentage and percent new shoot growth were not significantly affected by node number, but root number and root dry weight per cutting, and new shoot growth increased with node number.

Clonal Propagation in Commiphora Wightii (Arnott.) Bhandari Commiphora wightii, stem cutting, thickness, plant growth regulators, adventitious roots

Dhruv Kumar Mishra,Devendra Kumar 강원대학교 산림과학연구소 2014 Journal of Forest Science Vol.30 No.2

Studies were carried out to standardize and develop a suitable macro-propagation technology for large scale production of superior clonal stock through stem cuttings in Commiphora wightii Arnott (Bhandari), a data deficient medicinal plant of arid region. For the purpose, three experiments were conducted. The first experiment was tried to elucidate the impact of various cutting diameters (0.50-0.75 cm, 0.75-1.00 cm, 1.00-1.50 cm, and >1.50 cm) in combination with varying growing conditions (sunlight, shade house and mist chamber) on shoot sprouting and rooting without using exogenous plant growth regulators. Cutting diameter (size 0.75-1.00 cm) in mist chamber has shown maximum sprouting (90.00%) and rooting (73.33%), primary root (6.67) and secondary root (16.67) followed by 1.00-1.51 cm in mist chamber. Minimum sprouting (40.00%), rooting (33.33%), number of shoot (1.33), primary root (1.00) and number of secondary root (1.00) was recorded in cutting diameter (size >1.50 cm) in sunlight. Second experiment was performed to find out optimum growth regulator concentration of rooting hormone (100, 200, 500 and 1000 ppm) of Indole-3-acetic acid (IAA) and Indole-3-butyric Acid (IBA) on adventitious root formation on cuttings diameter (size 0.25-0.50 cm) in comparison to control. Maximum rooting percentage (93.33%) was recorded in 200 ppm followed by 500 ppm (86.66%) of IBA as compared to control, which showed only 60 per cent sprouting. Third experiment was performed with newly formed juvenile micro-cuttings treated with varying concentrations of IAA and IBA. The juvenile cuttings (size 6-10 cm, basal dia <0.25 cm) were selected as micro- cuttings. The cuttings treated with IBA (500 ppm) showed 64.30% rooting as compared to other treatments. Results of above experiments indicate that cuttings (size 0.75-1.00 cm dia) may be developed in mist chamber for better performance. While using heavier cuttings, no growth promoting hormones is required however; growth regulator 200 ppm concentration of IBA rooting hormone was observed optimum for promoting macro-propagation in stem cuttings of lower diameter class (0.25-0.50 cm).

Mass Propagation of Plug Seedling using Stem Cutting and Their Tuber Yield in Potato

Yang-Mun Park,Chang-Khil Song,Bong-Kyoon Kang,Dong-Woo Kim,Dong-Hwan Ko 韓國作物學會 1999 Korean journal of crop science Vol.44 No.3

For the mass production of plug seedlings in cultivar ‘Dejima’ potato (Solanum tuberosum L.) the optimal apical cutting diameter for rooting and rapid multiplication of stem cuttings in hydroponics were determined. In addition, the best planting date was predicted to increase tuber yield of plug seedlings at fall cropping in Cheju-Do, Korea. Days to initial rooting decreased as the cutting diameter was reduced. Plant height, leaf number, root length and root weight per plant were favorable as the cutting diameter was small. The ideal cutting diameter was 1-2 mm in this experiment. In the hydroponic cultures, the Japanese standard (JS) nutrient solution was the most effective for multiplication of stem cuttings. It was able to propagate more than 20 times a month from a single mother plant. Viability of plants, which were derived from plug seedlings using stem cuttings, was excellent when transplanted to the field. The number of tubers and tuber yield in both of the plug seedlings and seed potato planting plots were high when planted on 25 August. The number and yield were reduced when planted on 15 August, 5 September and 15 September. The degree of decrease of tuber yield in the plug seedling planting plot however, was lower than that of seed potatoes when the planting date was late. In the case of small tubers (under 30 g), the number of tubers and tuber yield were evidently increased in the seed potato tuber planting plot; the yield of large tuber (over 80g) in the plug seedling planting plot was higher than that of the seed potato. The total tuber yield per plant in the plug seedling planting plot was less than that of the seed potato; therefore, in order to increase tuber yield it was necessary to increase field plant density.