휴양경관조성식물의 열내성에 관한 연구
A Study on the Thermo-resistance of Recreational landscape plant genus hedera
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초록
헤데라(Hedera)속 식물의 저온임계온도, 최저치사온도를 규명하기 위해 헤데라속5종을 시험재료로 하여,인공하드닝과 무하드닝, 자연하드닝의 세가지의 방법으로 하드닝처리하였다. 결과, 시험재료로 사용한 헤데라속 식물중에는 H.helix L.가 가장 저온내성을 가지며, 하드닝처리를 한 경우의 H.helix L.의 저온임계온도는 －9~－L2℃’최저치사온도는 －16℃내외, H.canariensis Willd.의 저온임계온도는 －3~－6℃내외’최저치사온도는 －8℃내외로 밝혀졌다. 또한 하드닝처리를 하지 않은 경우의 최저치사온도는 H.helix L.가－10℃내외’H.canariensis Willd.가－6℃내외임이 밝혀졌다.
Abstract
The experiments which analyze the lowest survival point and the lethal point of genus hedera have been held under hardening and non-hardening conditions. Three experimental categories have been prepared. First is the step down process, ie., acclimatic freezing process and the second is the plunged process which started at 20℃ and 0℃. The third is the semi-step down process which started at 2℃, used seasonal materials hardened during autumn and winter seasons. Freezing and thawing work were clone inside the artificial control chamber. The results and explanations are as follows. The most durable one is, H.helix L., down up to -9~ -12℃, in which the lowest survival point and lethal point is -L6℃. The lowest survival and lethal point of H.canariensis Willd.,are -3~-6℃ and -8℃.
참고문헌 (5)
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