2023-01-012024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/660263日日春[Catharanthus roseus (L.) G. Don]盆花品種透過雜交育種育成，利用雄不稔植株進行雜交可省略去雄步驟，而了解花色遺傳模式有助於育種。本計畫探討日日春雄不稔之成因與穩定性、研究花冠與眼圈顏色之遺傳，並選育大花、大型眼圈、植株低矮及分枝性良好，及耐淹水、較耐低溫新品種。 Currently, most commercial cultivars of potted periwinkle [Catharanthus roseus (L). G. Don] are released through hybridization. Emasculation can be omitted when using male sterile plants as seed parents for cross pollination. Understanding of inheritance of flower color facilitates breeding. The aims of this project are to explore the causes and the stability of male sterile periwinkle, determine the inheritance of corolla and eye color, and breed and select new cultivars with large eye, dwarf, well-branched, large flowers, and waterlogging tolerance, and cool temperature tolerance.雄不稔;育種;雜交種;;male sterile;breeding;hybrid