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연구보문 : 재배년수가 둥근마 영여자 생산성에 미치는 영향
김인재 ( In Jae Kim ),남상영 ( Sang Young Nam ),최성열 ( Seong Yel Choi ),윤철구 ( Cheol Ku Yun ),이재선 ( Jae Sun Lee ),신세균 ( Se Gyun Shin ) 한국국제농업개발학회 2011 韓國國際農業開發學會誌 Vol.23 No.3
둥근마의 영여자 착생에 관한 생산성을 구명하고자 2008년부터 2010년까지 3년간 수행한 시험 결과는 다음과 같다. 1. 1년차 재배에 비하여 2, 3년차에서 둥근마의 경엽 생육이 양호하였으며, 경엽 건물중도 각각 52%, 106% 더 높았다. 2. 둥근마 괴근 수량은 1년차에 비해 2년차에서 42%가 많았으나, 3년차에서는 차이가 없었다. 3. 둥근마의 영여자(주아) 단위면적당(m2) 수량은 1년차 157 g에 비해 2년차와 3년차에서는 580 g 및 430 g으로 각각 3.7배, 2.7배 많았다. This study was conducted to determine the change of growth pattern of Chinese Yam (Dioscorea opposita Thunb.) affected by the continuous cultivation for three years from 2008 to 2010. The results obtained are as follows. Top growth of Chinese Yam was well-developed at 2nd and 3rd years rather than 1st year as cultivated year goes by. Dry weight of leaves and stems was higher in 52% at 2nd year and 106% at 3rd year compared to 1st year, respectively. The weight of bulbil of Chinese Yam was highest at 2nd year cultivation with 500g/(3.7 times) following 3rd year with 430g/(2.7 times) and 1st year with 157g/, respectively.
남상영 ( Sang Young Nam ),김인재 ( In Jae Kim ),최성열 ( Seong Yel Choi ),김민자 ( Min Ja Kim ),김영호 ( Young Ho Kim ),송인규 ( In Gyu Song ),이광재 ( Guang Jae Lee ),박재호 ( Jae Ho Park ),김태중 ( Tae Jung Kim ) 한국국제농업개발학회 2011 韓國國際農業開發學會誌 Vol.23 No.5
This study was conducted to investigate the effects of cultural soil textures on growth and quality of Glycyrrhiza uralensis Fischer from 2009 to 2010. The obtained results from this study were summarized as follows; The growth of stem and leaf were superior to one year old G. uralensis, and surface runner and root growth tended to be better in 2 years old G. uralensis. The weight of stem and leaf were heavy in sandy loam, and plant height, branches, stem diameter in sandy clay loam were better than other soil texture. The growth characteristics, such as length, number and weight of surface runner, was better in order of sandy clay loam > sandy loam > loamy sand. The length of main and lateral root was longer in loamy sand soil than other treatments, and the diameter of main and lateral root was more thicker in sandy loam than others. The number of lateral root was higher in the sandy loam than other treatments. The yield of main and lateral root was in order of sandy loam > sandy clay loam > loamy sand soil. Marketable root yield of one year old and two year old G. uralensis were increased 57% and 71% in sandy loam compare to a loamy sand as 204 kg/10 a, respectively. The content of glycyrrhizinic acid was the hightest as 1.62% in sandy clay loam soil in one year old, and as 1.58% in sandy loam soil in two years old of G. uralensis, respectively.
연구보문 : 적심정도가 감초의 생육 및 품질에 미치는 영향
남상영 ( Sang Young Nam ),김인재 ( In Jae Kim ),최성열 ( Seong Yel Choi ),김영호 ( Young Ho Kim ),송인규 ( In Gyu Song ),이광재 ( Guang Jae Lee ),박재호 ( Jae Ho Park ),김태종 ( Tae Jung Kim ) 한국국제농업개발학회 2011 韓國國際農業開發學會誌 Vol.23 No.2
감초의 적심정도가 생육 및 품질에 미치는 영향을 구명하고 감초 재배의 기초 자료를 얻고자 적심정도를 경장의 20% 등 4처리를 두어 2008년부터 3년간 시험한 결과는 다음과 같다. 1. 적심 유무에 따른 감초 경엽 생육은 초장, 분지수, 절수 및 경엽중은 무적심에서 양호한 경향이었으나, 경태는 가늘은 경향이었고, 적심정도 간에는 경태를 제외하고 적심비율이 적을수록 양호한 경향이었다. 2. 포복경 생육은 무적심 처리에서 양호한 경향이었으며, 적심정도에 따라서는 적심비율이 적을수록 양호한 경향이었다. 3. 뿌리의 생육은 무적심에 비하여 적심처리에서, 적심정도 간에는 주근장과 지근장은 20% 적심에서 길었으나, 다른 근생육은 40% 적심에서 양호한 경향이었다. 4. 근수량은 40%>60%>20%>무적심 순으로 많았으며, 40% 적심시 상품 근수량이 무적심 300kg/10a에 비하여 25% 증수 되었다. 5. 글리시리진(Glycyrrhizinic acid)의 함량은 20%와 40% 적심에서 무적심 1.35% 대비 각각 0.31%, 0.09% 높았다. Growth and quality according to top-precision degree of Glycyrrhiza uralensis Fischer were tested by 4 treatments including 20% rate cutting of branch-top during 3 years from 2008. Growth above ground part of Glycyrrhiza uralensis Fischer with or without topping-plant height, branch number, node number, weight of stem and leaf-was good tendency without topping but stem diameter was less. growth above ground part among topping ratio was the less topping ratio the better except stem diameter. Growth of surface runner was good tendency without topping. growth of surface runner among topping degree was the less topping ratio the better. Root growth was higher without topping compare to topping. Length of main and supporting root among topping ratio was longer in 20% topping treatment but root growth except root length was good tend in 40% topping. Weight of root was high 40%>60%>20%>no topping the order, marketable yield in 40% topping of height was increased by 25% compared with no topping as 300kg/10a. content of Glycyrrhizinic acid with 20% and 40% topping of height was increased by 0.31% and 0.09% compared to no topping as 1.35% respectively.
넓은잎큰조롱의 경엽절제가 생육 및 근수량에 미치는 영향
남상영 ( Sang Young Nam ),김인재 ( In Jae Kim ),김민자 ( Min Ja Kim ),최성열 ( Seong Yel Choi ),송인규 ( In Gyu Song ) 한국국제농업개발학회 2010 韓國國際農業開發學會誌 Vol.22 No.3
This experiment was carried out to get a basic information of yields and qualities as affected by 5 treatments including 10% cutting rate of branch-top with a view to reducing operating cost in the non-supporting cultivation system as an alternative of the staking cultivation system in Cynanchum auriculatum Royle ex Wight. The results were as followed; growth of branch-top by non-supporting culture seemed to be poor as compared to the staking one(conventional method). In non-supporting culture, lower rate of cutting of branch-top of the plants showed longer vine length, whereas higher rate of cutting resulted in thicker stem diameter and plenty of branch number. In view of leaf width in cutting rate of branch-top, the lower, the broader, but the chlorophyll content would be higher by increased rate of cutting of branch-top. Tuber growth seemed to be good in staking cultivation as compared to non-supporting cultivation. And marketable yield of no cutting of branch-top of the plants would be 559kg/10a, while 10~20% cutting rate of branch-top increased by 9~13% in non-supporting cultivation. The results obtained showed the optimal branch-top cutting ratio of non-supporting cultivation of which could be labor-saving farming technologies be 20% as an alternative of the staking cultivation system in Cynanchum auriculatum Royle ex Wight.