Journal of Practical Agriculture & Fisheries Research (현장농수산연구지)

Korea National University of Agriculture and Fisheries (국립한국농수산대학교 교육개발센터)
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Grafting Characteristics of Several Kiwifruit Cultivars as Affected by Rootstocks

몇 가지 키위 품종의 대목에 따른 접목 활착 특성

  • Kim, S.H. (Department of Fruit Science, Korea National College of Agriculture and Fisheries) ;
  • Kang, S.K. (Department of Fruit Science, Korea National College of Agriculture and Fisheries) ;
  • Park, S.K. (Department of Floriculture, Korea National College of Agriculture and Fisheries) ;
  • Kwack, Y.B. (Department of Fruit Science, Korea National College of Agriculture and Fisheries)
  • 김승희 (국립한국농수산대학 과수학과) ;
  • 강성구 (국립한국농수산대학 과수학과) ;
  • 박상근 (국립한국농수산대학 화훼학과) ;
  • 곽용범 (국립한국농수산대학 과수학과)
  • Received : 2020.04.10
  • Accepted : 2020.06.12
  • Published : 2020.06.30
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Abstract

To date, various kiwifruit cultivars have been developed and released. Asexual propagation by grafting onto seedlings rootstock have been widely utilized commercially in fruit trees including kiwifruit (Actinidia spp.). Most of commercial kiwifruit cultivars belong to A. chinensis and A. deliciosa. Recently, several cultivars were developed by interspecific hybridization with different species including A. arguta. There is a possibility for graft-incompatibility due to interspecific hybridization and therefore, we investigated graft-compatibility of newly released yellow-fleshed kiwifruit cultivars and a hybrid cultivar with various rootstocks of different species. The yellow-fleshed cultivars grafted onto same species, A. chinensis 'Kuimi', showed good shoot elongation, about 1 m in length 50 days after grafting. In contrast, the shoot elongation of the yellow-fleshed kiwifruit grafted onto different species was retarded. The shoot length of a hybrid cultivar (A. arguta × A. deliciosa) 'Skinny Green' grafted onto four different species was about 1 m in length, showing good graft compatibility with other species. Nevertheless, long term studies for graft compatibility of hybrid cultivars are still needed since graft-incompatibility between different species can occur several years later.

최근 다양한 키위 신품종이 육성, 보급되고 있다. 과수의 증식법은 무성번식의 한 종류인 접목이 많이 이용되고 있으며, 대목은 실생 대목을 많이 이용하고 있다. 키위 품종도 증식법으로 실생대목을 활용한 접목이 주로 이용되고 있다. 많은 키위 종 중에 상업적으로 재배되는 종은 크게 A. chinensis, A. deliciosa 2종이다. 최근 식이편의성을 위해 다래(A. arguta) 교잡종이 육성되는 등 종간 교배를 통한 품종이 육성되고 있다. 종이 다를 경우 접목 불친화성이 발현될 수 있기에 최근 육성된 골드품종과 교잡종의 대목에 따른 접목친화성을 알아보고자 하였다. 접목 50일 후 신초 신장량을 조사한 결과, 골드 3품종은 같은 종인 '괴밀(Kuimi)'을 대목으로 이용한 처리에서 1미터 정도로 가장 양호했고 종이 다른 대목에서는 신초신장이 억제되는 경향이었다. 다래(A. arguta) 교잡종 '스키니그린'은 모든 대목에서 1미터 정도자라 친화성이 좋은 것으로 보였다. 하지만, 이종간의 접목에서는 몇 년 뒤에 불친화성이 발현되기도 하기에 장기적인 추가 연구가 필요할 것으로 본다.

Keywords

References

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