Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Comparision of Growth Characteristics and Productivity of Young Trees of a New Cultivar 'Manpungbae' Trained to Trellis Systems

신품종 '만풍배' 유목의 수형별 수체 생육특성과 생산성 비교

  • Choi, Jang-Jeon (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Choi, Jin-Ho (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Han, Jeom-Hwa (Fruit Research Division, National Institute of Horticultural & Herbal Science) ;
  • Yim, Sun-Hee (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Jung, Seok-Kyu (Department of Horticulture, Catholic University of Daegu) ;
  • Choi, Hyun-Sug (Department of Horticulture, Catholic University of Daegu)
  • 최장전 (국립원예특작과학원 배연구소) ;
  • 최진호 (국립원예특작과학원 배연구소) ;
  • 한점화 (국립원예특작과학원 과수과) ;
  • 임순희 (국립원예특작과학원 배연구소) ;
  • 정석규 (대구가톨릭대학교 원예학과) ;
  • 최현석 (대구가톨릭대학교 원예학과)
  • Received : 2016.05.20
  • Accepted : 2016.11.26
  • Published : 2017.08.28
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Abstract

One-year old pear (Pyrus pyrifolia L.) trees of a new commercial cultivar 'Manpungbae', recently developed in South Korea, were planted in 2001 (planting year 1) and trained to four trellis systems: Y-trellis, Y-II-trellis, pergola, and vase-pergola. To evaluate training systems in the local area (southern Korea), tree growth responses were compared for each trellis system from planting years 3 to 8. For trees trained to Y-trellis and pergola systems, a high proportion of land covered by tree canopy was maintained over the study duration, with 70-80% coverage in year 8. Eight-year cumulative yield per tree was increased in the vase-pergola system with a low planting density and an additional scaffold. Compared with other systems, cummulative yield use efficiency was greatest in Y-II-trellis and pergola systems in years 5 and 8. Compared with Y-II-trellis and vase-pergola systems, the 8-year cumulative yield per hectare was two fold greater for trees trained to the Y-trellis (103 tons) and pergola systems (101 tons). Use of the pergola system improved average fruit weight and fruit soluble solid contents, as well as net income in year 8. Given that we observed reduced fruit productivity and increased labor hours (pruning and orchard work), we consider the Y-trellis and pergola systems to be less valuable trellis systems than the others evaluated.

최근 국내에 상업적으로 유통되고 있는 '만풍배' 배(Pyrus pyrifolia L.)나무 1년생을 재식(2001년)하여 정식 8년차까지 4가지 수형(Y자형, Y-II형, 평덕형, 평덕배상형)을 적용하여 남부지방에 적합한 수형을 제시하고자 본 시험을 수행하였다. Y자형과 평덕형은 수관점유율이 높게 형성되었고 8년차에는 70-80%의 점유율을 보였다. 8년간 주당 누적수량은 소식이면서 주지가 다른 수형보다 1개 더 많은 평덕배상형에서 가장 높았다. 재식 5년차와 8년차의 누적 수량이용효율은 Y-II형과 평덕형에서 높게 나타났다. 8년간 ha당 누적수량은 Y자형과 평덕형이 각각 103톤과 101톤으로 Y-II형과 평덕배상형보다 2배 가까이 높았다. 재식 8년차에 평덕형은 평균과중과 과육당도를 증가시켰고 순소득도 가장 높았다. Y자형과 평덕배상형은 전정량 증가에 의한 노동량 및 시간이 증가하여 생산성이 낮은 수형으로 평가되었다.

Keywords

References

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