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가지치기한 일본목련의 노지 삽목

Cutting Propagation of Pruned Magnolia Obovata Branches in an Open Field

  • 투고 : 2024.08.27
  • 심사 : 2024.11.05
  • 발행 : 2024.11.30

초록

일본목련은 조경목적으로 일본에서 도입되어 자연발생적으로 확산되고 있는 귀화목이다. 조경수로서의 가치가높고 의약품으로서의 유용성이 인정받고 있으나 삽목의 성공률이 낮아 대량 번식 방법이 개발되지 못한 상태이다. 본 연구에서는 가을철 가지치기한 가지를 삽수로 하여 노지 삽목을 시도하였다. 삽수는 30cm 길이로 자르고 절반 이상이 땅에 묻히도록 심었다. 검은 비닐로 차양막을 치고, 투명 비닐로 이중 비닐 터널을 만들어 삽수들을 보호하였다. 이중 비닐 터널은 3월말 제거하였다. 삽수의 급수는 주로 자연 강우에 주로 의존하였으며, 6월 초와 8월 초에 삽목으로 성장한 잎과 함께 새 줄기가 10cm 이상인 개체를 삽목 성공으로 판정하였다. 직경 8mm 미만의 가는 삽수는 모두 잎을 만들지 못하였고, 직경 8-10mm의 삽수는 30개 중 4개, 그리고 10mm 이상의 삽수는 30개 중 5개가 잎과 함께 10cm 이상의 새 줄기를 만들었다. 삽목번식의 성공률은 전체 삽수의 11.3%, 그리고 직경 8mm 이상의 삽수에서는 15%이었다. 본 연구의 결과는 가지치기로 잘라낸 일본목련 가지를 이용한 삽목이 충분히 가능한 번식 방법이 될 수 있다는 가능성을 보여준다

Magnolia obovata is a naturalized tree that was introduced from Japan for landscaping purposes and is spreading naturally. Its value as a landscape tree is high and its usefulness as a medicine is recognized, but mass propagation methods have not been developed due to the low success rate of cuttings. In this study, field cuttings were attempted using branches pruned in the fall as cuttings. The cuttings were cut to 30 cm in length and planted so that more than half were buried in the ground. A sunshade was put up with black vinyl, and a double vinyl tunnel was made with transparent vinyl to protect the cuttings. The double vinyl tunnel was removed at the end of March. Watering of cuttings mainly depended on natural rainfall, and cuttings were judged successful when new stems were 10 cm or longer along with leaves grown from cuttings in early June and early August. All of the thin cuttings with a diameter less than 8 mm failed to produce leaves, 4 out of 30 cuttings with a diameter of 8-10 mm, and 5 out of 30 cuttings with a diameter greater than 10 mm produced new stems of 10 cm or more along with leaves. The success rate of cuttings propagation was 11.3% of all cuttings and 15% of cuttings with a diameter greater than 8 mm. The results of this study show the possibility that cuttings using Magnolia obovata branches cut by pruning can be a viable propagation method.

키워드

참고문헌

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