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Indoor seed orchard의 가능성을 시험하기 위해 온실의 화분에서 자라는 낙엽송 접목묘와 야외에서 자라는 실생묘에 Gibberellins(GA4/7) 살포, 주입 및 몇가지 보조 처리를 사용하여 조기개화를 유도하였다. 온실의 화분에 지라는 접목묘에 대해서는 GA4/7 반복 살포 단독처리가 가장 효과적이었으나 보조 처리로서 사용된 root pruning은 상승효과를 보이 지 못했다. GA4/7 주입은 접목표의 치사를 초래하였기 때문에 유용한 방법이 아니었다. 10년생 실생묘를 이용한 야외실험에서는 GA4/7 살포와 보조처리로서 root pruning 또는 plastic mulching의 사용이 개화의 유도에 가장 효과적이었다.

Abstract ▼ AI-Helper

GA4/7 spray, injection and several cultural treatments were applied to the greenhouse-grown potted hybrid larch(Larix decidua${\times}$leptolepis) grafts and field-grown European larch seedlings to induce early flowering. A treatment consisting of repeat-ed GA4/7 sprays, alone, was the mo...

GA4/7 spray, injection and several cultural treatments were applied to the greenhouse-grown potted hybrid larch(Larix decidua${\times}$leptolepis) grafts and field-grown European larch seedlings to induce early flowering. A treatment consisting of repeat-ed GA4/7 sprays, alone, was the most effective flower induction treatment for greenhouse-grown, potted larch grafts. Root pruning as a adjunct treatment did not show synergistic effects. Injection for potted grafts with GA4/7 was not useful approach in this study and it resulted in increased mortality. In the field experiment with 10-Year-old larch seedlings, repeated GA4/7 sprays in combination with root pruning or with plastic mulching appears to be useful and practical means for inducing larch flowers:

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