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신개발 포도 비가림 시설의 특성과 '캠벌얼리'의 생육

Characteristics of the Newly Developed Rain Shelter for Grapevine and Growth of 'Campbell Early'

  • Lee, Yun Sang (Chungcheongbukdo Agricultural Research and Extension Services) ;
  • Kim, Seung Deok (Chungcheongbukdo Agricultural Research and Extension Services) ;
  • Lee, Seok Ho (Chungcheongbukdo Agricultural Research and Extension Services) ;
  • Hong, Seong Taek (Chungcheongbukdo Agricultural Research and Extension Services) ;
  • Lee, Jae Wung (Chungcheongbukdo Agricultural Research and Extension Services) ;
  • Hong, Eui Yon (Chungcheongbukdo Agricultural Research and Extension Services) ;
  • Kim, Dae Il (Department of Horticultural Science, Chungbuk National University)
  • 투고 : 2015.04.08
  • 심사 : 2015.09.18
  • 발행 : 2015.09.30

초록

노지 포도재배는 강우에 직접 노출되어 열과와 병 발생이 많아진다. 그래서 도입된 것이 간이 비가림 재배이지만, 이것 역시 열과와 병 발생을 예방하는 데는 한계가 있다. 따라서 간이비가림 시설의 문제점을 보완하기 위해서 완전하게 강우를 차단하면서 자연적인 환기가 가능한 비가림 시설을 개발하여 적설하중과 풍하중을 내재 해 규격에 맞추었다. 개선된 비가림 시설의 특성을 검증하기 위해서 $100m^2$ 규모의 시설을 설치한 다음 관행 비가림 시설과 시설 내외부 온도 분포와 그에 따른 포도캠벨얼리의 품질, 갈반병 발생 및 열과율 등을 조사하여 비교하였다. 관행 비가림 시설과 개선된 비가림 시설의 온도 조사결과 외기온이 $34^{\circ}C$ 이상일 경우 시설 내부온도가 관행 최대 $40.7^{\circ}C$, 개선 시설은 $37.4^{\circ}C$로 측정되어 개선 시설이 3정도 낮았고, $32^{\circ}C$ 이하에서는 관행과 개선 시설 간에 온도 차이가 없었다. 과실 품질은 개선된 비가림 시설이 관행 비가림 시설보다 당도와 상품과율이 높았다. 개선된 비가림 시설이 관행에 비해 열과율과 갈반병 발병율이 현저히 낮았다.

Fruit cracking and vine leaf spot of grapes tend to occur when the plants were directly exposed to rain under outdoor culture. Rain shelter facility can be an alternative method to prevent the cracking and disease of grape, but it also has some limitations in practical usages. We designed rain shelter facility which can completely shut out the rain and ventilate naturally, and it was upgraded to meet the standards of disaster prevention against snow and wind load. The newly developed rain shelter has two-story roof structure, and the $2^{nd}$ floor roof was equipped over $1^{st}$ floor roof at a distance of 40cm. For natural ventilation and water proof, the upper roof protruded about 50cm from the ridge of a $1^{st}$ floor roof. The various tests were carried to examine such as grape quality, brown spot and fruit cracking of Campbell Early under the conventional and the newly developed rain shelter facility which was built about $100{\ss}{\check{S}}$. In comparison of temperature between the conventional and the newly developed rain shelter facility when outside temperature was more than $34^{\circ}C$, the inside temperature was recorded as $40.7^{\circ}C$ and $37.4^{\circ}C$, respectively. There was no significant difference between the two facilities when outside was below $32^{\circ}C$ The quality such as soluble solids and marketable fruit was increased, and fruit cracking of grapes and vine leaf spot also drastically diminished in the newly developed rain shelter.

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참고문헌

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