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유과기 소봉지 괘대가 '화산배' 병해 및 품질에 미치는 영향
박영식,정햇님,이제창,엄남용,홍세진,허재윤,Park, Young-Sik,Jeong, Haet-Nim,Lee, Je-Chang,Um, Nam-Yong,Hong, Sae-Jin,Heo, Jae-Yun 한국유기농업학회 2017 韓國有機農業學會誌 Vol.25 No.4
본 연구는 '화산배' 품종에서 유기재배 동안 유과기 소봉지 괘대가 과실의 병해충 발생과 과실품질 저하 방지에 미치는 영향을 검정하기 위해서 수행되었다. 2015년 4월부터 9월까지 유기농 배 과원에서 과실의 생산성과 상품성에 영향을 미치는 주요 병해충에 발생량을 검정하였다. 4가지의 주요 나방류 해충 중 복숭아순나방이 유기농 과원에서 가장 많은 발생량을 보였으며, 이들은 4월과 5월 사이에 가장 빈번하게 발생하는 것으로 관찰되었다. 4가지의 주요 병해 중에서는 붉은별무늬병과 검은별무늬병의 발생량이 많았으며, 특히 5월에 가장 많이 발생하는 것으로 조사되었다. 유과기에 소봉지 괘대는 생물학적 스트레스에 따른 간섭을 억제하는데 기여함으로서 봉지 괘대 시기에 상관없이 관행 봉지 괘대 처리법보다 우수한 품질을 가지고 상품성을 가진 과실의 생산 비율을 증진시켜 주는 것으로 나타났다. 특히 4월 중 가장 빠르게 소봉지 괘대가 이루어졌던 실험구간에서 병해충에 대한 소실률이 가장 낮게 나타났을 뿐만 아니라 과실이 가장 많이 비대 되고 당도도 가장 많이 높아진 것으로 나타났다. 이러한 결과는 '화산배'에 있어 빠른 소봉지 괘대가 유기재배를 위한 효과적인 관리기법 중 하나로써 사용될 수 있음을 시사하는 것으로 판단된다. Different timings of coverage by a small paper bag at the young fruit stage were tested in order to evaluate the effect on the protection of fruit damage occurred by disease or pest, and quality deterioration during organic cultivation of 'Hwasan' (Pyrus pyrifolia Nakai) pear cultivar. The occurrence of four major moth populations and two major diseases in pears were monitored from April to September 2015. Among major moths and diseases, Grapholita molesta and pear rust were found often in the organic pear orchard, and they were observed frequently in May. Coverage by a small paper bag at the young fruit stage resulted in better fruit quality and a higher proportion of commercial fruits compared to a coverage timing of conventional paper bag. Interestingly, the fastest coverage timing of a small paper bag at the young fruit stage (when it was covered in April) showed the lowest occurrence of damaged fruits, which indicates that it successfully protected fruits from the damage caused by moths and diseases during April and May. Moreover, this timing of small paper bag coverage did not negatively affect the major qualitative and quantitative characteristics of fruits. These results suggest that early coverage by a small paper bag at the young fruit stage can be considered an efficient management strategy for organic cultivation of 'Hwasan' pear cultivar.
Young Moon Mo(모영문),Eun Ruol Lee(이은열),Gi Wook Lee(이기욱),Jae Hyoung Yi(이재형),Soo Jeong Lim(임수정),Ye Ji Yoon(윤예지),Nam Yong Um(엄남용) 한국약용작물학회 2021 한국약용작물학회 학술대회논문집 Vol.2021 No.1
Background : This study was carried out to establish the type of shading facilities suitable for stable growth and seed production in order to expand the cultivation area of Pilose bellflower. Methods and Results : Treatment was 4 types of open field, 55% shading, rain shelter, rain-shelter + 55% shading for each shading method. The chlorophyll content of Pilose bellflower leaves grown in each facility was the highest at 30.8 μ㏖/㎡ when 55% shading was applied, and was statistically significant. The starting date of flowering by shading facility type was the same as July 5, but the flowering period and the flowering end date showed the earliest trends in the 55% shading treatment, July 27 and August 3. The flowering start date by shading facility type showed the same trend as July 5, but the flowering period and the flowering end date showed the earliest trend as July 27 and August 3, respectively, in 55% shading treatment. The weight of fresh grass and hay per plant was the heaviest at 101.3 g and 21.0 g, when rain-shelter + 55% shading treatment, and were statistically significant. The weight of fresh and dry roots per plant showed the heaviest trend at 36.9 g and 10.9 g, respectively, at 55% shelter treatment, but there was no statistical significance. In the case of 55% shading treatment, the survival rate of ginseng was 68.3%. The yield of dry roots per 10 a was the heaviest at 110.2 ㎏ in 55% shading treatment, and it tended to increase by 29% compared to 85.4 ㎏ in the open field. In the rain shelter and the rain-shelter + 55% shading treatment, the amount of seeding per plant was 3.6 g and 3.7 g, respectively. In addition, the yield of seeds per 10 a was 23.2 ㎏ and 24.2 ㎏, respectively, in the case of rain shelter and rain-shelter + 55% shading, which tended to increase by 70.6 - 77.9% compared to the open field. However, in the case of 55% shading treatment, the germination force of seeds showed the strongest tendency, and the germination rate was also the highest at 91.0%. In rain shelter and rain-shelter + 55% shading treatment, where the seed yield was high, the germination rates tended to decrease to 76.5% and 72.5%, respectively. The superior seed production amount of Pilose bellflower per 10a was estimated to be 17.8 ㎏ and 17.5 ㎏ in the rain shelter and rain-shelter + 55% shading treatments. In the 55% shading treatment, the superior seed production was 13.8 ㎏, which was 23.3% higher compared to 11.2 ㎏ in the open field. Conclusion : From the above results, when the germination rate was considered, a 55% shading facility was considered to be suitable for stable growth and seed production of 1-year-old Pilose bellflower.