미류나무절 교잡종 포플러의 생장특성 및 내병성에 의한 선발

구영본(Yeong Bon Koo),김인식(In Sik Kim),여진기(Jin Kie Yeo),최완용(Wan Yong Choi) 한국산림과학회 2002 한국산림과학회지 Vol.91 No.4

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수도권매립지에서 생장과 적응력이 우수한 포플러류 및 버드나무 클론 선발

구영본 ( Yeong Bon Koo ),우관수 ( Kwan Soo Woo ),여진기 ( Jin Kie Yeo ),김영식 ( Yeong Sik Kim ) 한국산림과학회 2006 한국산림과학회지 Vol.95 No.6

포플러 및 버드나무 클론의 수도원매립지 적응성 검정

구영본(Yeong Bon Koo),여진기(Jin Kie Yeo),김인식(In Sik Kim),김태수(Tae Su Kim),김영중(Young Joung Kim),여인선(In Sun Yeo) 한국산림과학회 2002 한국산림과학회지 Vol.91 No.3

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낙엽송의 삽목발근에 (揷木發根) 관련된 물질 및 발근과정

구영본(Yeong Bon Koo),현정오(Jung Oh Hyun) 한국산림과학회 1996 한국산림과학회지 Vol.85 No.2

This study was conducted to identify factors involved in rooting of Japanese larch cuttings. Cuttings were taken every week from June 24th to July 25th before and after the 10th of July which supposed to be best time for cutting. The content of IAA, carbohydrate, nitrogen and inorganic elements such as Mg^(++), K^+ and Ca^(++) within cutting materials were analyzed. After the cuttings were planted, the root development was observed every week. Cuttings of easy-to-root clones were higher in IAA contents than the cuttings of hard-to-root clones at the time of cuttings were taken. There were significant differences in moisture content of cuttings taken on June 24th and July 25th between easy-to-root and hard-to-root clones, however no significant differences in moisture contents were observed between them taken on the 8th and 15th of July which supposed to be the best time for cutting. Inorganic matters and carbohydrate contents of cuttings taken from hedged trees were higher than those of non-hedged trees. The ratios K/C and C/N of cuttings taken from hedged trees were higher than those of non-hedged trees. Cuttings taken from easy-to-root clones showed higher content of carbohydrate and nitrogen than those of hard-to-root clones. The contents of inorganic elements, such as Mg^(++), K^+, and Ca^(++) in cutting taken from hard-to-root clones were slightly higher than that of easy-to--root clones. The ratio C/N and K/C of cuttings which were taken from easy-to-root clones have shown a similar trend of carbohydrate and nitrogen. These data indicate that there was no one dominant factor that affect rooting of cutting, but many factors such as contents of IAA, carbohydrate, nitrogen, phosphate, and ratios of C/N and K/C appeared to affect on rooting of cuttings variously. Most of root initials were formed from phloem tissue within one week after cutting, and few were formed from callus tissue. Root primordia were developed from root initials within two weeks after cutting, and most of new roots were developed from root primordia within about five weeks after cutting.

대기오염 피해지역의 산벚나무 임분내 내성 및 감수성 개체의 유전적 차이

이석우,우수영,구영본,이성규 ( Seok Woo Lee,Su Young Woo,Yeong Bon Koo,Soung Kyu Lee ) 한국산림과학회 1998 한국산림과학회지 Vol.87 No.1

The estimates of genetic diversity based on 7 polymorphic loci coding for 6 isozymes were compared between the tolerant and the sensitive trees in an air polluted Prunus sargentii stand located on Ulsan industrial area. Although we could not observe statistically significant differences in allele and genotype frequencies between the two groups except the gene locus Got-2, the unique alleles and genotypes were observed in the tolerant group. All the genetic parameters such as genetic multiplicity, genetic diversity, and heterozygosity revealed that a greater amount of genetic variations existed in the tolerant group.

도심지 은행나무 가로수의 엽록소 함량 및 유전변이 특성

김판기(Pan Gi Kim),구영본(Yeong Bon Koo),이재천(Jae Cheon Lee),배상원(Sang Won Bae),이용섭(Yong Sub Yi),정용문(Yong Moon Cheong) 한국농림기상학회 2001 한국농림기상학회지 Vol.3 No.2

Ginkgo biloba L. has been planted in the city as street trees because reported as resistant species to air pollutant. Especially, the trees planted on the street of `Cheongro`, Mt `Nam`, and `Jamsil` have been exposed to air pollutant for a long time. This study was conducted to examine chlorophyll contents and genetic variation of Ginkgo biloba in the areas. Chlorophyll contents measured in the above three areas were variable although the the diameter at breast height measured in `Cheongro` and Mt. `Nam` were constant. In addition, the result showed positive relation between chlorophyll contents and DBH in this study. Eight enzyme systems were analyzed in megagametophytes which were collected in the areas and separated to two groups based on chlorophyll contents. All the enzymes appeared to be polymorphic : Got-2, Pgi-2, Pgm, Acon, Mnr, Mdh, Skdh, and 6Pgd. The sensitive (S) groups varied from 1.253 to 2.571 in the genetic diversity and the tolerant (T) groups ranged from 1.416 to 2.825. The observed single locus heterozygosities (H_o) ranged from 0.056 to 0.611 in the S groups, and from 0.179 to 1.643 in the T groups. The expected heterozygosities (H_e) ranged from 0.208 to 0.629 in the S groups and from 0.321 to 0.658 in the T groups. In addition, the H_o values averaged over all loci were 0.326 for the T groups and 0.299 for the S group, respectively. A difference between the two groups was 0.027. The T groups had the unique alleles and genotypes and all the parameters for genetic diversity showed that the T groups had higher genetic diversity than the S groups.

노화처리를 이용한 리기다소나무 종자의 활력 평가

한심희 ( Sim Hee Han ),구영본 ( Yeong Bon Koo ),김찬수 ( Chan Soo Kim ),오창영 ( Chang Young Oh ),송정호 ( Jeong Ho Song ) 한국농림기상학회 2006 한국농림기상학회지 Vol.8 No.1

노화 처리를 이용하여 리기다소나무 종자의 활력을 평가하고, 적정 노화 처리 기간 및 온도를 결정하고자 하였다. 리기다소나무 종자의 활력은 노화 처리 기간과 온도에 큰 영향을 받았으며, 노화 처리가 진행되는 동안 종자 발아율과 종자 활력은 크게 감소하였다. 리기다소나무 종자의 노화 지수는 35℃에서 0.31이었으며, 40℃에서 15일 동안 노화 처리한 종자는 활력을 완전히 상실하였다. 노화 지수를 기준으로 한, 리기다소나무 종자의 노화 처리 최적 온도는 대략 37℃ 부근으로 판단되었다. 노화 처리된 종자로부터 빠져나온 용출액을 분석한 결과, 용출액내 무기물과 전기전도도는 노화 기간이 증가함에 따라 증가하였다. 노화 처리 시험은 수목 종자의 활력을 평가하는데 매우 적절한 방법으로 판단되었으나, 수종에 따라 종자 특성이 매우 다르므로 다양한 수종에 대해 노화 처리의 최적 조건을 찾기 위해서 더 많은 연구가 필요하다. We tested the seed viability of Pinus rigida using accelerated aging to discover optimum times and temperatures for artificially accelerated aging. Seeds were artificially aged at different temperatures and during different times. The seed viability was affected by the accelerated aging and by temperature with a decline in germination and seed vigor. The aging index of P. rigida seed was 0.31 at 35℃ and seed viability was nearly lost after aging treatment at 40℃ for 15 days. The optimum temperature of P. rigida for the aging test was decided to be approximately 37℃ on the basis of the aging index. Inorganic materials and conductivity of leaching solution from aging seeds increased with the increase of aging period. The accelerated aging test was considered to be a suitable method to evaluate the seed viability of tree species. Because seed characters are much different among tree species, however, more studies need to be done to discover the optimum conditions for aging by tree species.

축산폐수 처리에 따른 포플러유의 생육반응 및 축산폐수 흡수능력

여진기(Jin Kie Yeo),구영본(Yeong Bon Koo),손두식(Doo Sik Son) 한국산림과학회 2001 한국산림과학회지 Vol.90 No.6

The two-month-old rooted-cuttings of Populus albs × glandulosa, P. euramericana and P. nigra × maximowiczii clones were exposed to livestock waste water - one of major water pollutants, and ground water in order to determine the effects of livestock waste water on growth response and absorption capacity of the species. For this purpose, 5 clones of each species were used. In all the species, the height growth of rooted-cuttings was better in livestock waste water treatment than in ground water. Of all the poplar species compared, the height growth was best in P. alba × glandulosa. In the cases of P. euramericana and P. nigra × maximowiczii, the height growth in the livestock waste water treatment was statistically different among clones, whereas there was no significant difference among P. alba × glandulosa clones. Aboveground biomass such as leaf and shoot dry weight of all the species increased in the livestock waste water treatment, while root dry weight decreased. In addition, chlorophyll contents in leaf of all the poplar species increased in the livestock waste water treatment. All the poplar trees showed temporal variation in the absorption amount of livestock waste water during the experimental period. In all the poplar species, the absorption amount of livestock waste water was less than that of ground water. Of 3 poplar species, P. alba × glandulosa was best in the absorption capacity of livestock waste water. Of all 15 poplar clones compared in this study, the 72-16 clone of P. alba × glandulosa showed the best absorption capacity.

SCB액비가 속성수의 생장 및 biomass 생산에 미치는 영향

김현철(Hyun-Chul Kim),여진기(Jin-Kie Yeo),구영본(Yeong-Bon Koo),신한나(Hanna Shin),최진용(Jin-Young Choi),이헌호(Heon-Ho Lee) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.2

SCB액비, 저장액비, 화학비료, 지하수 및 무처리에 따른 포플러 및 버드나무 클론, 백합나무의 생존율은 전체 평균 94.4%로 나타나 양호하였으며, 잎과 줄기의 비율은 각각 63.5%, 36.5%로 매년수확구의 식재당년 지상부 biomass는 잎의 비율이 높았다. 처리구별 줄기발생 수는 SCB액비, 저장액비, 화학비료, 지하수 및 무처리구가 평균 4.2, 4.6, 4.5, 4.7, 4.9개로 크게 차이가 나타나지 않았으며 버드나무 클론들의 줄기 수가 포플러 클론 및 백합나무 보다 많았다. 줄기직경과 지상부 biomass에 대하여 개체당 유도된 회귀모델을 통해 추정된 biomass 생산량은 화학비료>저장액비>지하수>SCB액비>무처리구 순으로 나타났다. 수종 및 클론별 지상부 biomass 생산량은 모든 처리구에서 현사시 클론들이 우수하게 나타났으며, SCB액비 처리에 따른 잎과 줄기의 질소함량을 분석한 결과 무처리구 보다 질소함량이 높게 나타나 SCB액비에 함유된 질소를 체내에 흡수하는 것으로 판단된다. 따라서, SCB액비를 biomass 매년수확구에 처리한 결과 화학비료, 저장액비, 지하수 처리구보다 생산량이 적게 나타났지만 무처리구 보다는 생산량이 증가하여 향후 처리방법이나 적정 처리량 등을 구명하여 적용한다면 화학비료와 비슷한 효과를 얻을 수 있고 가축분뇨 처리비용도 절감할 수 있을 것으로 판단된다. 그러나 본 연구는 biomass 매년수확구의 식재당년의 결과이며, 식재한 묘목의 수령이 증가하고 입지환경에 적응되면 바이오매스 생산량도 대폭 증가할 것이므로 이와 같은 연구가 반복적으로 수행되어야 보다 확실한 결과를 얻을 수 있을 것으로 생각된다. Fifteen clones of poplars, 2 clones of willows, and yellow poplar were used to evaluate the effects of 5 treatments such as SCBLF (slurry composting and biofiltration liquid fertilizer), general slurry liquid fertilizer, chemical fertilizer, groundwater, and control (no treatment) on vitality, growth performance, and biomass production. Five cuttings for each tree species were planted in 3 replications. After planting cuttings, a coppice was induced by cutting off stems at 10cm above the ground. Data were collected for first growing season and trees were harvested at the end of October. Maximum mortality rate i.e. 96% was recorded in the cuttings treated with groundwater and minimum 92% with control (no treatment). In all tree species, sprouting of stump was not differ significantly among the treatments. Total nitrogen concentrations of leaves and stump sprouts were higher in the treatment of SCBLF than the control, 26.6% and 22.9%, respectively. Biomass production was highest in the stumps treated with chemical fertilizer, 1.98 Mg ha<SUP>-1</SUP> year<SUP>-1</SUP>, and lowest in control (1.34 Mg ha<SUP>-1</SUP> year<SUP>-1</SUP>).

양돈분뇨 처리에 따른 속성수의 유시 생육특성

김현철(Hyun-Chul Kim),여진기(Jin-Kie Yeo),구영본(Yeong-Bon Koo),박정현(Jung-Hyun Park),백을선(Eul-Sun Baik) 한국토양비료학회 2009 한국토양비료학회지 Vol.42 No.5

This study was conducted to analyze growth responses of fast growing tree species(8 clones of hybrid poplars, Salix alba, Metasequoia glyptostroboides, Liriodendron tulipifera, Acer okamotoanum, and Quercus palustris), the chemical characteristics of soil and NO3-N concentration of groundwater in a plantation applied with liquid pig manure. Concentrations of nitrogen and phosphorous in the soil treated with liquid pig manure were higher than that of the soil treated without liquid pig manure. With the exception of S. alba, DBH(Diameter at Breast Height) growth of all the fast growing tree species treated with liquid pig manure was higher than that of the species treated without liquid pig manure. In liquid pig manure treatment group, P. euramericana ‘Eco28’ clone showed the best performance in height and DBH growth. Concentration of nitrogen in the leaf with liquid pig manure was higher than that of the leaf treated without liquid pig manure. Based on the NO3-N concentration of groundwater analyzed during the experimental period, there was no evidence that groundwater was polluted by the liquid pig manure applied at the plantation.