http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
접수의 채취부위 및 접수와 대목의 고정법에 따른 장미 접삽묘의 생육 특성
박유경(Yoo Gyeong Park),정병룡(Byoung Ryong Jeong) 한국원예학회 2010 원예과학기술지 Vol.28 No.3
A study was conducted to investigate the effect of topophysis, and uniting method of rootstock and scion on rooting and subsequent growth of stenting-propagated cut rose (Rosa hybrida Hort.) in an effort to develop an efficient stenting propagation method for domestic rose cultivars. Four cultivars used in this study were two standard type cultivars ‘Sweet Yellow’ and ‘Hanmaum’, and two spray type cultivars ‘Chelsi’ and ‘May’. Scions were grafted on cuttings of a rootstock Rosa indica ‘Major’. The stenting-propagated scion-rootstock unions were planted in rockwool cubes (50 × 50 × 50 ㎜, Delta, Grodan, Denmark) and were placed in a graft-take chamber for five days before being placed on misted greenhouse beds. The rootstock was removed of all leaves and nodes. Both the base of scions and top of stocks were simultaneously cut at a 45˚ angle for grafting. Scions were prepared as single node cuttings, each with a five-leaflet leaf. Three positions of topophysis used were 7-9th (top), 4-6th (middle), and 1st-3rd (bottom) nodes from the stem base. Four uniting materials used were tube, tube + parafilm wrap, tube + clothespin, and clothespin. Rooting and growth were affected by the topophysis and cultivar. The best topophysis for rooting was 7-9th (top) nodes in all cultivars. Topophysis affected percent rooting, and number of roots, length of the longest root, and but not weight, shoot length and graft-take. Rooting and growth were affected by the uniting method and cultivar. Tube uniting method generally showed higher percentage graft-take, percent rooting, and number of roots than other methods. However, rootstock and scion union was not complete in this treatment. On the whole, the greatest rooting and subsequent growth of stenting-propagated plants were found in the tube + clothespin method. Except ‘Sweet Yellow’, rooting and growth were not adequate in the clothespin method. The results suggested that a tube + clothespin method was the most effective, and this method may be used as a substitute to save labor compared to a tube + parafilm wrap method which is currently being used in commercial nurseries.
저면공급한 규소에 의한 포인세티아의 광합성 능력 향상과 고온 스트레스 경감
손문숙(Moon Sook Son),박유경(Yoo Gyeong Park),Iyyakkannu Sivanesan,고충호(Chung Ho Ko),정병룡(Byoung Ryong Jeong) 한국원예학회 2015 원예과학기술지 Vol.33 No.6
The effect of Si supplied during plant cultivation on tolerance to high temperature stress in Euphorbia pulcherrima Willd. ‘Ichiban’ was investigated. Rooted cuttings were transplanted into 10-㎝ pots and a complete nutrient solution, containing 0 or 50 ㎎·L<SUP>-1</SUP> Si as either K₂SiO₃, Na₂SiO₃, or CaSiO₃, was supplied through subirrigation or weekly foliar applications. After two months of cultivation, plants were placed in an environment-controlled chamber and subjected to 35 ± 1℃ (high temperature) conditions for 18 days. Enhanced specific activities of enzymatic antioxidants (APX) and suppressed specific activities of non-enzymatic antioxidants (ELP) were observed in the high temperature-stressed plants with Si application. The Fv/Fm (maximum quantum yield of photosystem II), photosynthetic rate, and Si contents in the shoot increased in the treatments of K₂SiO₃ and Na₂SiO₃ supplied through subirrigation. The Si-treated plants had more tolerance of high temperature stress than the control plants. Of the Si sources and application methods tested, K₂SiO₃ and Na₂SiO₃ supplied through subirrigation were found to be the most effective in enhancing tolerance to high temperature stress.
밀폐형 식물생산시스템에서 인공광원과 광조사 시간에 따른 상추의 생장 및 안토시아닌 함량
박지은(Ji Eun Park),박유경(Yoo Gyeong Park),정병룡(Byoung Ryong Jeong),황승재(Seung Jae Hwang) 한국원예학회 2012 원예과학기술지 Vol.30 No.6
This study was conducted to examine the effect of artificial light source and photoperiod on the growth of leaf lettuce (Lactuca sativa L.) ‘Seonhong Jeokchukmyeon’ in a closed-type plant production system. Seedlings were grown under 3 light sources, fluorescent lamp (FL, Philips Co. Ltd., the Netherlands), WL #1 (Hepas Co. Ltd., Korea), and WL #2 (FC Poibe Co., Ltd., Korea), each with 3 photoperiods, 12/12, 18/6, and 24/0 (Light/Dark). An irradiance spectrum analysis showed that FL has various peaks in the 400-700 nm range, while WL #1 and WL #2 have only one monochromatic peak at 450 and 550 nm, respectively. The greatest plant height, fresh and dry weights were obtained in the 24/0 (Light/Dark) photoperiod. The 24/0 (Light/Dark) photoperiod treatment promoted vegetative growth of the leaf area. Length of the longest root, number of leaves, fresh weight, and total anthocyanin contents were greater in FL than in either WL #1 or #2. The greatest chlorophyll fluorescence (Fv/Fm) was found in the 12/12 (Light/Dark) photoperiod with FL treatment. The energy use efficiency of the LED increased by about 35-46% as compared to FL. Results suggest a possibility of LED being used as a substitute light source for fluorescent lamp for lettuce cultivation in a plant factory system.
Ebb and Flow 시스템에서 적심시기와 생장조절제 처리에 의한 산호수의 생장조절
원은정(Eun Jeong Won),박지은(Ji Eun Park),박유경(Yoo Gyeong Park),정병룡(Ryong Jeong) (사)한국생물환경조절학회 2011 시설원예‧식물공장 Vol.20 No.4
순환식 저면관수 시스템에서 분화 산호수 민무늬종과 무늬종에 적합한 효과적인 생장조절제를 선발하기 위하여 수행되었다. 산호수를 피트모스와 펄라이트를 1 : 1(v/v)로 혼합한 배양토를 사용하여 직경 10cm 플라스틱분에 2005년 6월 30일 정식하였다. 정식 후 2005년 9월 23일까지 순환식 저면관수 시스템 베드에서 재배하였다. 생장조절제는 Daminozide(B-9) 50, 200, 350, 500㎎ㆍL?¹, paclobutrazol(Boundy) 10, 40, 70, 100㎎ㆍL?¹, ethephon(Florel) 5, 15, 25, 35㎎ㆍL?¹, 그리고 uniconazole(Sumagic) 1, 4, 7, 10㎎ㆍL?¹을 사용하였다. 생장조절제를 양액에 혼합하여 매관수시마다 화분의 하단에서 2cm 높이까지 담수하여 15~20분간 공급하였다. 관수 후 잉여양액은 다시 탱크로 회수하여 다음 관수시 재사용하였으며, 전량 사용할 때까지 교체하지 않고 사용하였다. 두 품종 모두에서 paclobutrazol 처리시 생장억제효과가 가장 뚜렷하게 나타났다. 2차 적심과 함께 paclobutrazol을 처리하였을 때 신초의 생장이 강하게 억제되었다. 200㎎ㆍL?¹ 이상의 daminozide는 신초장을 감소시켰으며 ethephon 처리는 효과가 없었다. 생장조절제의 저농도에서 효과가 나타나는 것을 볼 수 있었으며 그 중에서도 paclobutrazol의 왜화 효과가 가장 현저하였다. This study was conducted on the effect of plant growth retardants (PGRs) on growth of potted Ardisia pusilla and Ardisia pusilla var. variegata grown for a short term in an ebb and flow system. Plants were planted in 10 ㎝ plastic pots, containing a mixture of peat moss and perlite (1 : 1, v/v) on 30 June 2005 and were grown until 23 Sep. 2005. The PGRs used were 50, 200, 350, 500 ㎎ㆍL?¹ daminozide (B-9), 10, 40, 70, 100 ㎎ㆍL?¹ paclobutrazol (Boundy), and 5, 15, 25, 35 ㎎ㆍL?¹ ethephon (Florel). On every irrigation, the nutrient solution containing PGRs was supplied at a 2 cm depth and was kept for 15~20 minutes. The surplus nutrient solution was drained back into the tank for next irrigations. In both cultivars, paclobutrazol gave the most pronounced effect in inhibition of stretchiness. Ardisia pusilla, which was pinched just before initiation of paclobutrazol treatment, resulted in the greatest inhibition of shoot elongation. Daminozide treatments above 200 ㎎ㆍL?¹ also gave reduction of shoot length. However, ethephon treatments gave no dwarfing effect in Ardisia pusilla. Inhibition of stretchiness was observed even in the lowest concentration treatments. Among the PGRs, paclobutrazol was the most effective in suppressing plant stretchiness.
Runner Training Angle Affects Growth of Runners in ‘Seolhyang’ and ‘Maehyang’ Strawberries
Jin Zhao(조진),Yali Li(리야리),Yoo Gyeong Park(박유경),Jiangtao Hu(호강도),Byoung Ryong Jeong(정병룡) (사)한국생물환경조절학회 2020 생물환경조절학회지 Vol.29 No.3
딸기는 다년생 초본성 식물로 그 과실은 영양 가치가 높고 인기있는 고부가가치 채소작물이다. 본 연구는 딸기 품종 ‘설향’과 ‘매향’의 런너유인각도(RTA)가 절간장과 런너 발생수에 미치는 영향을 조사하여 자묘의 생산성을 높이고 번식효율을 증가시키기 위한 기초 자료를 얻고자 수행되었다. 러너를 0°(상향), 45°, 90°(수평), 135°, 또는 180°(하향)의 각도로 한 달 간 유인하였다. 이 실험은 유리온실에서 주간/야간 온도 29/20°C, 평균 광도 450 μmol m<SUP>-2</SUP>·s<SUP>-1</SUP> PPFD의 자연광 환경에서 수행하였으며, 1일 광주기는 12시간이었다. ‘설향’과 ‘매향’에 있어서 RTA는 런너 수와 절간장에 영향을 주었으며, 자묘 수, 생체중과 건물중에 영향을 미쳤다. RTA 135° 또는 180°에서 두 품종 모두 자묘의 평균 생체중과 건물중이 가장 작았으며, ‘설향’ 품종에서는 런너 길이와 절간장이 짧아졌다. RTA가 두 품종 모두에서 런너의 직경에는 영향을 미치지 않았지만 런너의 형태에는 영향을 미쳤다. RTA중 135°와 비교해서 180°가 가장 많은 자묘를 생산하여 가장 번식효율이 좋았다. Strawberry (Fragaria × ananassa Duch.), a herbaceous perennial crop, is a popular fruit crop with high economical and nutritive values. This study was conducted to investigate the effect of the runner training angle (RTA) on the length of internodes and number of runners produced in strawberry ‘Seolhyang’ and ‘Maehyang’ in an attempt to achieve a higher production rate of runner plants and increase the propagation efficiency. Runners were trained for 30 days to grow at an angle of 0° (vertically upward), 45°, 90° (horizontal), 135°, or 180° (hanging down) from the upward vertical axis. The experiment was carried out in a glasshouse with 29/20°C day/night temperatures, an average light intensity of 450 μmol·m<SUP>-2</SUP>··s<SUP>-1</SUP> PPFD coming from the sun, and a natural photoperiod of 12 hours. For both ‘Seolhyang’ and ‘Maehyang’, the RTA affected number and length of runners, and number and fresh and dry weights of runner plants. Training at an angle of 135° or 180° shortened length of runners and internodes in ‘Seolhyang’. These RTAs also produced runner plants with the lowest fresh and dry weights in both cultivars. The RTA did not affect the runner diameter, but affected the runner morphology in both cultivars. As compared to a RTA of 135°, a 180° RTA increased number of runner plants produced, making it the most proliferative RTA.