スプレーカーネーションの花持ち性およびエチレン感受性の簡易検定(育種・遺伝資源)  [in Japanese] Easy Evaluation of Longevity and Ethylene Sensitivity in Spray-Type Carnation Flowers(Breeding & Germplasm Resources)  [in Japanese]

スプレータイプカーネーションの花持ち性およびエチレン感受性の簡便な検定法を検討した.花持ちは温度と負の相関があり, 花持ち性の品種間差は温度に関係なく認められた.1茎多花のスプレーカーネーションでは, 品種によっては花蕾着生位置の違いによる花持ち差が認められた.しかしそれは花蕾着生位置での開花ステージの違いに起因するもので, 開花ステージを同一にして花持ち調査を行えば, 花持ち日数の偏差は小さく, その品種本来の花持ち性の評価が可能であった.エセホン溶液への花弁浸漬処理は, 外生エチレン感受性を検定する際に, 簡易で, かつ同時大量処理ができるため有効であった.さらに, 新しい検定方法によってスプレーカーネーション主要47品種の花持ち日数および外生エチレン感受性を明らかにした.

To more easily evaluate longevity and ethylene sensitivity in spray-type carnation flowers, the following evaluation methods were investigated. Though the vase life was negatively correlated with room temperature, differences in vase life among varieties were confirmed, irrespective of room temperature. In some varieties of spray-type carnation with several flowers on one stem, there was a difference in vase life due to the flower setting position, which was caused by a difference in flowering stage at the flower setting position. If the flowering stages were the same, the variation in vase life decreased among flowers cut to about 3cm at the peduncle and evaluation of the original longevity of the variety was possible to control. The petal soak treatment in ethephon solution was effective for evaluation of exogenous ethylene sensitivity because it could test the mass easily and simultaneously. Furthermore, the longevity and exogenous ethylene sensitivity in the main 47 varieties of spray-type carnation was clarified using new evaluation methods.