Influences of Different Planting Times on Harvest Index and Yield Determination Factors in Soybean

Sei Joon Park,Wook Han Kim,Rak Chun Seong 韓國作物學會 2000 Korean journal of crop science Vol.45 No.2

This experiment was conducted to investigate the changes of harvest index and the relationship between harvest index and yield determination factors by different planting times in the determinate soybean cultivars, Shinpaldal and Danbaeg. Optimum planting were 23 May in 1995 and 1996. Late planting were 13 June in 1995 and 6 June in 1996. Growth period from planting to physiological maturity (R7) was shortened as planting time was delayed in two cultivars due to shortening of reproductive growth period in Shinpaldal, and of vegetative growth period in Danbaeg. Stem weight was distinctly decreased in late planting compared to optimum planting, but seed weight of both cultivars was not different between planting times. Also, seed number per pod and harvest index were significantly increased in late planting and the high correlation was found between two factors. It was suggested that increase of harvest index in late planting would be related with high assimilate use efficiency due to increase of sink capacity. The results of correlation and principal component analysis for yield determination factors showed that main factor on yield determination was pod number per plant at R5 stage associated with dry matter accumulation during early reproductive growth period, seed number per pod and harvest index were the second factor, and one hundred seed weight was the third factor. The result of this experiment indicated that yield determination in soy-bean was dependent mainly on pod number per plant related to dry matter accumulation by early reproductive growth period, and the increase of seed number per pod and harvest index could compensate for yield decrease by shortening of vegetative growth period in late planting. Such result suggests that optimum planting date can be delayed from mid May to early June in improved soybean cultivars in Korea

Influences of Different Planting Times on Harvest Index and Yield Determination Factors in Soybean

Park, Sei-Joon,Kim, Wook-Han,Seong, Rak-Chun The Korean Society of Crop Science 2000 Korean journal of crop science Vol.45 No.2

This experiment was conducted to investigate the changes of harvest index and the relationship between harvest index and yield determination factors by different planting times in the determinate soybean cultivars, Shinpaldal and Danbaeg. Optimum planting were 23 May in 1995 and 1996. Late planting were 13 June in 1995 and 6 June in 1996. Growth period from planting to physiological maturity (R7) was shortened as planting time was delayed in two cultivars due to shortening of reproductive growth period in Shinpaldal, and of vegetative growth period in Danbaeg. Stem weight was distinctly decreased in late planting compared to optimum planting, but seed weight of both cultivars was not different between planting times. Also, seed number per pod and harvest index were significantly increased in late planting and the high correlation was found between two factors. It was suggested that increase of harvest index in late planting would be related with high assimilate use efficiency due to increase of sink capacity. The results of correlation and principal component analysis for yield determination factors showed that main factor on yield determination was pod number per plant at R5 stage associated with dry matter accumulation during early reproductive growth period, seed number per pod and harvest index were the second factor, and one hundred seed weight was the third factor. The result of this experiment indicated that yield determination in soy-bean was dependent mainly on pod number per plant related to dry matter accumulation by early reproductive growth period, and the increase of seed number per pod and harvest index could compensate for yield decrease by shortening of vegetative growth period in late planting. Such result suggests that optimum planting date can be delayed from mid May to early June in improved soybean cultivars in Korea.

도시공원 조경수목 식재 평가 및 평가등급 적용 방안 - 인천광역시 송도 해돋이공원을 대상으로 -

한봉호 ( Bong Ho Han ),조훈검 ( Hun Gum Cho ),곽정인 ( Jeong In Kwak ),박석철 ( Seok Cheol Park ) 한국환경생태학회 2014 한국환경생태학회지 Vol.28 No.4

본 연구는 인천광역시 송도 해돋이공원의 공간기능에 따른 식재개념 적정성 검토, 식재구조 현황, 공간별 식재된 수목에 대해 형태평가와 생육평가를 통해 현재 식재되고 있는 조경수목의 형태 및 생육상태 문제점을 도출하고, 이를 개선하기 위한 평가 적용 체계를 제안하고자 수행하였다. 공간기능에 따른 식재개념 적정성 평가 결과 녹음기능이 필요한 공간 중 29.5%만 녹음식재지이었고, 58.7%는 시각적 경관식재지, 11.8%는 완충식재지이 었다. 이는 시설물 중심 공간구성에 따른 식재면적 부족과 녹음기능을 수행할 수 없는 어린 수목을 식재하였기 때문인것으로 판단되었다. 식재구조 현황에서는 식재기능 향상을 위해서는 각 식재개념에 따른 적정한 식재종, 식재 구조, 밀도, 규격, 생육 상태 등을 고려한 식재가 필요할 것으로 판단되었다. 조경수목 평가 조사는 완충공간에서 22종 209주, 녹음공간에서 8종 71주, 시각적 경관공간에서 16종 266주, 생태적 경관공간에서 4종 54주로 총 28종 600주의 조경수목을 대상으로 수목평가를 실시하였다. 수목평가 결과 수목 형태평가 점수는 평균 56.6점, 수목 생육평가 점수는 평균 76.0점으로 평가되었다. 수목평가 점수는 모두 점수별로 등급화하였고 공간별, 수종별로 통계 처리하여 유의성을 검증하였다. 본 연구에서는 수목평가 결과를 활용하여 공간기능별 수목 기준 도출 및 적정 식재개념을 적용하였다. 공간별 수목 형태평 가 결과를 식재개념에 적용하면 완충식재는 기능성이 강조되므로 형태평가 등급이 가장 낮은 E등급, 생태적 경관식재는 다양성과 자연성이 강조되므로 D등급, 녹음식재는 이용성이 강조되므로 주간에서 분지된 가지의 높이를 고려한 수종 선택으로 C등급, 시각적 경관식재는 미적가치성이 강조되므로 A등급과 B등급을 각각 적용할 수 있었다. 공간별 수목 생육평가 결과를 식재개념에 적용해 보면 식재기반을 기준으로 양호와 불량으로 구분하여 완충식재, 시각적 경관식재, 생태적 경관식재에서는 생육평가 A등급부터 E등급까지 식재가 가능하였고, 녹음식재에서는 A등급부터 C등급까지 식재가 가능하였다. This study aims to present an evaluation scheme to improve the problems in tree shapes and tree growth which were identified through shape and growth assessments of landscape trees currently planted in Haedoji Park, Songdo, Incheon Metropolitan City after plant structure status and propriety review for funtion of space and concept of planting. Suitability the planting concept was evaluated according to function of space. The result indicated that the shade planting areas accounted for 29.5% of the the shade spaces area. 58.7%, respectively planting areas of visual landscape. And 11.8%, respectively planting areas of buffer. Because the planting areas was lacked according to the park established spatial configuration of central facilities and the result of plant young trees. Plant structure status required consideration with plant structure, density, size, growth status for improve planting function. The tree assessment was performed on a total of 28 species and 600 trees of which 22 species and 209 trees were planted in the buffer zone, 8 species and 71 trees in the shade zone, 16 species and 266 trees in the visual landscape zone, and 4 species and 54 trees in the ecological landscape zone. The trees were divided into grades based on their assessment score and were statistically grouped by the functional zone in where they are planted and by tree species to verify their significance. The tree shape assessment was an average of 56.6 points and the tree growth assessment was an average of 76.0 points. Using the results of the tree assessments, the tree standards for each functional space were identified and a concept of optimum planting and cultivating was applied. When applying the shape assessment results by zone to the concept of planting, since trees for buffering require high functionality they received E’s, the lowest grade; as trees for ecological landscaping require diverseness and naturalness, they received D’s; since trees for shading require utilization, they received C’s as trees with branching at the main stems were considered; and since trees for visual landscaping required aesthetical value, they received A’s and B’s. When applying the growth assessment results by zone to the concept of planting, based on planting foundations of favorable and poor, for buffering, visual landscaping, and ecological landscaping, trees from grades A to E could be planted, and for shading, trees from grades A to C could be planted. For a cultivation plan that could improve the growth of the trees, we proposed that the topography of the land be selected considering the tree’s characteristics and that a method of pot seeding be used. Also, to improve the shape of the trees, we proposed that poles be used to improve the growth of vertically-straight stems, an appropriate planting density be applied for reasonable branch growth, manage tree shape to maintain good crowning, and better manage fertilization to maintain a reasonable crown density.

광주광역시 아파트단지 내 난대상록활엽수 식재특성에 관한 연구

박상욱,오창송 (사)한국정원디자인학회 2022 한국정원디자인학회지 Vol.8 No.2

The purpose of this study was to categorized to examine the planting characteristics of evergreen broad-leaf trees planted in green spaces in Gwangju Metropolitan City, apartment complexes located in the southern region, and consider the planting characteristics by considering the planting frequency by characteristics, planting location, and planting technique. In the landscape space outside the apartment complex in Gwangju Metropolitan City, S. Korea, 9 families and 13 species of warm temperate evergreen broad-leaved trees were planted, 6 families 8 species of warm temperate evergreen shrubs were planted. By planting technique and planting location, the available subtropical deciduous broadleaf trees are classified as follows. Trees that can be used for emphasis planting are Osmanthus fragrans var. aurantiacus Makino, Osmanthus fragrans (Thunb.) Lour., and Ilex cornuta Lindl. & Paxton, which were planted in the form of an spheric shape at a height of 4.0m or more. For gather planting, Camellia japonica L., Magnolia grandiflora L., Ternstroemia gymnanthera (Wight & Arn.) Sprague, and Daphniphyllum macropodum Miq. were plnated in the green areas around the emergency vehicle traffic line and around the main building. For hedge planting, Osmanthus fragrans (Thunb.) Lour., Ilex cornuta Lindl. & Paxton, Photinia glabra (Thunb) Maxim., which were planted in the green area around the facility. For border planting, Gardenia jasminoides var. radicans (Thunb.) Makino, Photinia glabra (Thunb) Maxim. were rarely planted. In particular, to shield the rear part of the bicycle storage rack installed around the main entrance, which is classified as a permanent shade area according to sunlight analysis, Photinia glabra (Thunb) Maxim. and Viburnum odoratissimum var. awabuki (K. Koch. with strong sound resistance were planted. Trees that can be used for shielding were planted Photinia glabra (Thunb) Maxim. and Viburnum odoratissimum var. awabuki (K. Koch). In particular, to shield the rear part of the bicycle rack installed around the main entrance, which was classified as a permanent shade area. In the street plantings, Quercus myrsinaefolia Blume, Ilex rotunda Thunb., Castanopsis sieboldii (Makino) Hatus. with a straight stem and high clear length were planted. For induced planting, Photinia glabra (Thunb) Maxim. and Ternstroemia gymnanthera (Wight & Arn.) Sprague with low clear length and characteristic leaves were planted in the green area around emergency vehicle traffic and in the green area around the walkway, and for boundary plantings, Osmanthus fragrans (Thunb.) Lour., Ilex cornuta Lindl. & Paxton, and Photinia glabra (Thunb) Maxim. used for hedge planting. This study was expected to be used as a basic data for selecting evergreen broad-leaf trees suitable for landscape planting and functional planting according to the location of outdoor space and green space in the design stage of apartment complexes. 본 연구는 남부지역에 위치한 광주광역시 아파트단지를 대상으로 녹지공간에 식재된 난대상록활엽수를 조사하여 성상별, 식재기법별, 식재위치별로 나타나는 식재빈도를 고려하여 식재특성을 고찰하고, 활용가능한 수목을 유형화하는데 목적이 있다. 광주광역시 아파트단지 외부 녹지공간에 식재된 난대상록활엽교목은 9과 13종이 식재되었으며, 난대상록관목은 6과 7종이 식재된 것으로 나타났다. 아파트단지에 식재된 난대상록활엽수를 식재기법별, 식재위치별로 조사한 결과 강조식재에 활용빈도가 높은 수목은 금목서, 목서, 호랑가시나무이며, 수고 4.0m 이상을 구형으로 조형한 형태로 주출입구 주변 녹지와 주동 출입구 주변 녹지에 식재되었다. 모아심기에는 동백나무, 태산목, 후피향나무와 굴거리나무가 비상차량동선 주변 녹지와 주동 주변 녹지에 식재된 것으로 조사되었다. 산울타리식재에는 목서, 호랑가시나무와 홍가시나무가 시설 주변 녹지에 주로 식재되었다. 경재식재에 사용된 난대상록활엽수는 홍가시나무와 치자나무가 일부 식재되었다. 차폐식재에 활용된 수목은 지하고가 낮은 홍가시나무와 수간밀도가 높고 잎의 크기가 상대적으로 큰 아왜나무가 식재되었다. 특히 일조분석에 따라 영구음지로 분류되는 주동 출입구 주변에 설치되는 자전거보관대의 후면부를 차폐하기 위해 내음성이 강한 홍가시나무와 광나무가 식재되었다. 가로수식재에는 수간이 직간이면서 지하고가 높은 가시나무, 먼나무, 구실잣밤나무가 비상차량동선 주변 녹지에 식재되었다. 유도식재에는 지하고가 낮고 잎에 특징이 있는 홍가시나무, 후피향나무가 비상차량동선 주변 녹지와 산책로 주변 녹지에 식재된 것으로 조사되었으며, 경계식재에는 산울타리식재를 위해 목서, 호랑가시나무, 홍가시나무가 주로 식재된 것으로 나타났다. 본 연구는 아파트단지의 설계 및 시공단계에서 외부공간 녹지의 위치에 따른 경관식재 및 기능식재에 적합한 난대상록활엽수를 선정하기 위한 기초자료로 활용이 될 것으로 기대된다.

수변구역 조성 녹지의 모니터링을 통한 식재방안 모색 - 가평군 시공지를 대상으로 -

조현길 ( Hyun-kil Jo ),박혜미 ( Hye-mi Park ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.12

The growth conditions of planted trees, invasion of nuisance herbaceous species, competition between species, and effects of erosion control were monitored over five years in a riparian greenspace in Gapyeong County that was established through multilayered and grouped ecological planting. Of 156 trees planted in the upper and middle layers, 5.8% died. This tree death was attributed to poor drainage or aeration in the rooting zone from the clay-added root ball and too deep planting as well as a small-sized root ball and scanty fine roots. Of all the trees, 21.6% grew poorly due to transplant stress in the first year after planting, but they started to grow vigorously in the third year. This good growth was largely associated with soil improvement before planting, selection of appropriate tree species based on growth ground, and control of dryness and invasive climbing plants through surface mulching and multilayered/grouped planting. Mixed planting of fast-growing species as temporary trees was desirable for accelerating planting effect and increasing planting density. Thinning of fast-growing trees was required in the fifth year after planting to avoid considerable competition with target species. To reduce the invasion of herbaceous and climbing plants that oppress normal growth of planted trees, higher density planting of trees (crown opening of about 15%), woodchip mulching to a 10-cm depth, and edge planting 2 m wide were more effective than lower density planting (crown opening of 70%), no surface mulching, and no edge planting, respectively. This reduction effect was especially great during the first three years after planting. Nuisance herbaceous plants rarely invaded higher density planting with woodchip mulching over the five years. Higher density planting or woodchip mulching also showed much greater erosion control through rainfall interception and buffering than lower density planting with no mulching did. Based on these results, desirable planting and management strategies are suggested to improve the functions of riparian greenspaces.

Effect of Planting Date and Planting Density on Growth and Yield of Soybean in cheju Island

Young Kil Kang,Mi Ra Ko,Nam Ki Cho,Yang Mun Park 韓國作物學會 1998 Korean journal of crop science Vol.43 No.1

Two determinate soybean cultivars, 'Baegunkong' and 'Namhaekong', were planted on 8 Jone, 23 June, and 8 July 1996 at Cheju at planting densities of 33, 43, 53, 63 plants per m2 to determine the optimum planting density of double crop soybean for recently recommended cultivars in Cheju area at various planting dates. The plant height, and the diameter and node number of main stems decreased as planting was delayed. The plant height increased but the stem diameter and node number decreased with increasing planting density. Pod number per plant was greater for Namhaekong than for Baegunkong and was not affected by planting date. Pod number per plant decreased but pod numbers per ~textrmm2 increased with increasing planting density. The number of seeds per pod was greater at the two later plantings and fewer at the highest planting density. 100-seed weight decreased with delaying planting. The seed weight was lighter at the highest planting density for Baegunkong but there was no difference for Namhaekong among the planting densities. The seed yield of Baegunkong was greater for 23 June and 8 July plantings (2,280 and 2,420 kg/ha) than for 8 June planting (1,450 kg/ha) while that of Namhaekong was greatest at 23 June planting (2,690 kg/ha) compared with 8 June and 8 July plantings (1,890 and 2,080 kg/ha). Across the planting dates and cultivars, seed yield increased from 1,860 to 2,290kg/ha as the planting density increased from 33 to 53 plants/~textrmm2 and then leveled off with a further increase in planting density.

Effect of Planting Date and Planting Density on Growth and Yield of Soybean in Cheju Island

Kang, Young-Kil,Ko, Mi-Ra,Cho, Nam-Ki,Park, Yang-Mun The Korean Society of Crop Science 1998 Korean journal of crop science Vol.43 No.1

Two determinate soybean cultivars, 'Baegunkong' and 'Namhaekong', were planted on 8 Jone, 23 June, and 8 July 1996 at Cheju at planting densities of 33, 43, 53, 63 plants per $m^2$ to determine the optimum planting density of double crop soybean for recently recommended cultivars in Cheju area at various planting dates. The plant height, and the diameter and node number of main stems decreased as planting was delayed. The plant height increased but the stem diameter and node number decreased with increasing planting density. Pod number per plant was greater for Namhaekong than for Baegunkong and was not affected by planting date. Pod number per plant decreased but pod numbers per $\textrm{m}^2$ increased with increasing planting density. The number of seeds per pod was greater at the two later plantings and fewer at the highest planting density. 100-seed weight decreased with delaying planting. The seed weight was lighter at the highest planting density for Baegunkong but there was no difference for Namhaekong among the planting densities. The seed yield of Baegunkong was greater for 23 June and 8 July plantings (2,280 and 2,420 kg/ha) than for 8 June planting (1,450 kg/ha) while that of Namhaekong was greatest at 23 June planting (2,690 kg/ha) compared with 8 June and 8 July plantings (1,890 and 2,080 kg/ha). Across the planting dates and cultivars, seed yield increased from 1,860 to 2,290kg/ha as the planting density increased from 33 to 53 plants/$\textrm{m}^2$ and then leveled off with a further increase in planting density.

파종시기 및 품종이 사일리지용 옥수수의 생육특성, 사초생산성 및 사료가치에 미치는 영향

배명진,정승헌,김종덕 한국초지조사료학회 2022 한국초지조사료학회지 Vol.42 No.1

The planting date of corn for silage has been delayed because of spring drought and double cropping system in Korea. This experiment was conducted to evaluate agronomic characteristics, forage production and feed value of corn at April and May in 2019. Experimental design was a split-plot with three replications. Planting dates (12 April and 10 May) were designated to the main plot, and corn hybrids (‘P0928’, ‘P1543’ and ‘P2088’) to the subplot. The silking days of the early planting date (12 April) was 79 days and that of the late planting date (10 May) was 66 days (p<0.0001), however, there were no significant differences among the corn hybrids. Ear height of the late planting date was higher than that of the early planting (p<0.05), while there were no significant differences in plant height of corn. Insect resistance at the early planting was lower than that of late planting (p<0.05), however, lodging resistance was no significant difference at planting date. The rice black streaked virus (RBSDV) infection of early planting was 3.7% and that of late planting was 0.3% (p<0.001). Dry matter (DM) contents of stover, ear and whole plant had significant difference at planting date (p<0.05). And differences in ear percentages were observed among the corn hybrids (p<0.01). And ear percentages of early maturing corn (‘P0928’) was higher than for other hybrids. Ear percentage at the early planting date was higher than that at the late planting date (p<0.01). DM and total digestible nutrients (TDN) yields had significant difference at planting date, however, there were no significant differences among the corn hybrids. DM and TDN yields at the late planting (21,678 kg/ha and 14,878 kg/ha) were higher than those of the early planting (13,732 kg/ha and 9,830 kg/ha). Crude protein content at the early planting date was higher than that of the late planting. Acid detergent fiber content of the late planting was lower than that of the early planting date (p<0.01), while there were no significant neutral detergent fiber content difference among the corn tested. Calculated net energy for lactation (NEL) and TDN at the early planting were higher than those of at the late planting (p<0.01). Results of this our study indicate that the late planting date (May) is better than early planting date (April) in forage yield and feed value of corn. Therefore, the delay of planting date by May was more suitable for use in cropping system.

Effects of Planting Dates on Growth and Yield of Soybean Cultivated in Drained-Paddy Field

Cho Jin-Woong,Lee Jung-Joon,Kim Choong-Soo The Korean Society of Crop Science 2004 Korean journal of crop science Vol.49 No.4

This study was carried out to determine adequate planting date, to compare the growth characteristics between early and late maturing cultivars, and to provide the data for the cultivation techniques of soybean [Glycine max (L.) Merr.] in double cropping system with winter crops on paddy field in Korea. Cultivars were planted on 26 May, 16 June, and 7 July with a planting density of $70cm(row\;widtb)\;{\times}\;10cm$ (planting spacing). Seed yield of soybean planted on June 16 and July 7 was approximately $37\%\;and\;53\%$, respectively, less than that of conventional planting date of May 26 in Pungsan-namulkong, and planted on June 16 and July 7 was about $30\%\;and\;37\%$, respectively, less then that of conventional planting date of May 26 in Hanamkong. The number of pods and seeds per plant decreased as planting date delayed. Seed weight increased in Pungsan-namulkong but decreased in Hannamkong as planting date delayed. The flowering date was late in delayed planting plots, but it was shorted for days from emergence to flowering and from emergence to maturity. The plant height of Hannamkong was greater than Pungsan-namulkong from the emergence to flowering stages, but in contrast, it was greater in Pungsan-namulkong than Hannamkong after flowering stage (50d after emergence) when it planted on May 26. There were no significant differences between two soybean cultivars at planting dates of June 16 and July 7. Leaf number, leaf area, and dry matter were also reduced by late planting, and Both of them were shown in high reduction at the later planting. There was a high significant difference at the flowering $(r\;=\;0.87^{**})$ and pod formation $(r\;=\;0.91^{**})$ stages between leaf dry matter and seed yield. Crop growth rate (CGR) was greater at $R2\~R3$ growth stages compared to $R3\~R4\;or\;R4\~R5$ growth stages in two soybean cultivars and the greatest CGR was obtained at planting date of May 26 in two soybean cultivars except for R4-R5 growth stage in Pungsan-namulkong. There was a highly significant positive difference between the seed yield and the leaf area index (LAI) across R3 to R4 and R2 to R3 stages. The photosynthetic rate $(P_N)$ of the uppermost leaf position had no significant difference among planting dates and between two soybean cultivars. However, $P_N$ of the $7^{th}$ leaf position increased as the planting date delayed.

식재밀도에 따른 물푸레나무 조림목 식재 후 7년간의 생장 특성

한승현,양아람,노남진,조민석 한국산림과학회 2022 한국산림과학회지 Vol.111 No.4

This study aimed to determine the optimal planting density of Fraxinus rhynchophylla assessed from the early growth performance at various planting densities over the 7-year period after planting. The study site was in Pyeongchang County, South Korea, and seedlings of 2-year-old (bare-root seedlings) F. rhynchophylla were planted at four densities (3,000, 5,000, 7,000, and 10,000 trees ha-1) in March 2015. The survival rate, root-collar diameter (RCD), and height (H) were measured from 2015 to 2021, and the H/D (H/RCD) ratio and stem volume were cal- culated. The survival rate (84-97%) and H/D ratio (54.5-59.2%) were not affected by the planting density during the study period, but the RCD, H, and stem volume were significantly higher for 7,000 trees ha-1 than for other planting densities. Especially, the stem volume (cm3 tree-1) at 7 years after planting was highest for 7,000 trees ha-1 (1,356.1), followed by 10,000 trees ha-1 (958.6), 5,000 trees ha-1 (773.0), and 3,000 trees ha-1 (579.5). As the planting density increased, F. rhynchophylla seedlings showed initial rapid growth due to light competition, but relatively low growth at excessive planting densities. In the future, use of a suitable planting density considering planting costs should pro- vide outstanding growth performance of F. rhynchophylla on plantations. 본 연구는 식재밀도가 식재 후 7년간 물푸레나무 조림목의 생장 특성에 미치는 영향을 분석하여 적정 식재밀도를제시하고자 하였다. 2015년 3월, 강원도 평창군에 위치한 조림지(3 ha)에 물푸레나무 2년생 노지묘를 4가지의 식재밀도(3천본, 5천본, 7천본, 10천본 ha-1)로 식재하였다. 조림목의 생존율, 근원경, 수고를 2015년-2021년까지 매년 9월에 측정하였고, H/D율(Height/Diameter ratio)과 수간 재적을 산출하였다. 식재밀도에 따른 물푸레나무 조림목의 생존율은 84-97% 범위로 유의한차이가 없었으며, H/D율(54.5-59.2%) 또한 뚜렷한 차이를 나타내지 않았다. 그러나 근원경, 수고, 수간 재적은 7천본 ha-1에서다른 식재밀도 처리에 비해 높게 나타났다. 특히 식재 7년차 수간 재적(cm3 tree-1)은 7천본 ha-1에서 1,356.1로 가장 높았으며, 10천본 ha-1 (958.6), 5천본 ha-1 (773.0), 3천본 ha-1 (579.5) 순이었다. 물푸레나무는 식재밀도가 높아질수록 수광 경쟁에 의해빠른 초기 생장을 보였으나, 임계 식재밀도(10천본 ha-1)에서는 생장이 상대적으로 낮아지는 것을 확인하였다. 향후 조림비용이 고려된 적정 식재밀도 적용시 물푸레나무 조림지에서의 우수한 조림 성과를 기대할 수 있을 것으로 보인다.