The Effect of Stem Leading Time and Angles on the Flowering in Climbing Rose

덩굴장치의 가지유인시기 및 각도가 생육 및 개발에 미치는 영향

This study was to obtain effect of stem leading time and angles on the growing and flowering in climbing rose. The results were as follows : In the rambler type, climber type and pillar type, differences of bud size were decreased between upper ports and lower parts as leading angles were close to the horizon. And bud type was like a long-egg shape. regardless of growing type, differences of stets diameter between upper parts and lower parts were decreased when the angles were leaded horizon. In order to increase rate of shooting and flowering, regardless of leading time, rambler type was shooted in a short period and flowered evenly, from upper to lower parts of stem as leading angles were horizon. But in the case of 45$^{\circ}$, the rate of lower parts was nearly zero. In climber type, shooting and flowering was only happened to the lower parts of stem when leaded during growth stage according to leaded horizon. These phenomena are supposed that shooting and flowering rate are influenced by not only apical dominance but degree of bud growth. Meanwhile, pillar type was shooted and flowered evenly to lower parts when the stem was leaded during growth stage or not leaded completely. But in creeper type, there was no connection with the leading. Therefore, this type had better not leaded. Length of flowering stem, regardless of growing type, was equaled when leaded during growth stage according to leaded horizon.

덩굴장미의 배식 및 관리에 있어서 용술에 적합한 사용과 관성가치의 증가를 목적으로 생육형별로 구분하여 가지의 유인시기 및 유인각도가 생장과 개화에 미치는 영향을 실험하였는바 얻은 결과는 다음과 같다. 1. 완전만성형, 반만선형 그리고 관목형에서, 가지를 신장생장중에 수평에 가깝게 유인할수록 상부와 하부에서 아의 크기 차이는 감소하였고 외형은 장관형에 가까워지며, 아의 발육은 충실하게 되었다. 2. 신장생장중에 유인한 가지의 직경은 생육형에 관계없이, 수평으로 유인하였을 때 상부와 하부의 직경차이가 감소하여 굵기가 균일하게 되었다. 3. 가지전체의 맹아율 및 개화율을 증가시키기 위해서는 완전만성형의 경선 유인시기에 관계없이 수평에 가깝게 유인할수록 가지의 하부까지 고르게 이루어진다. 4. 반만성형에서는 가지의 신장생장중 수평으로 유인하여야만 하부까지 맹아.개화시킬 수 있고 신장생장이 완료된 후에는 유인에 의한 효과가 없었다. 이러한 현상에 의해 개화 및 맹아율의 증가는 정아우세의 타파와 함께 아의 유실도에 의해서도 영향을 받는 것으로 사료된다.