【目的】 木芙蓉(Hibiscus mutabilis Linn.)在我国栽培历史悠久,是传统观赏名花,杂交选育木芙蓉新品种对木芙蓉产业化发展具有重要意义。【方法】 以木芙蓉‘R-1’为母本、‘金秋红’为父本杂交选育出有特异性的实生苗,然后进行了扦插及品种特性考察。【结果】 杂交苗经品种特性考察后定名为‘百日华彩’,‘百日华彩’为丛生灌木或小乔木,花重瓣,初开时为粉红,后期颜色逐渐变为紫红色,不结实;花期6—11月,长达180 d。【结论】 ‘百日华彩’花期长、花姿优美、抗性强,符合新品种特异性,具有较高的园林应用价值。

【Objective】 Hibiscus mutabilis Linn.is a traditional ornamental flower with a long history of cultivation in China. Breeding new Hibiscus mutabilis varieties is significant in the development of the Hibiscus mutabilis industry. 【Method】 ‘Bairihuacai’ is a new Hibiscus mutabilis cultivar developed from a mutant cross-breeding of ‘R-1’ as the female parent and ‘Jinqiuhong’ as the male parent. Cutting propagation was conducted, and the variety characteristics were investigated. 【Result】 ‘Bairihuacai’ is a tufted shrub or small tree with double petals. The flower is pink at the start and turns purplish red at a later stage. The flowering period is from June to November and lasts for more than 180 days. 【Conclusion】 With a long flowering period, beautiful flower posture, and strong resistance, ‘Bairihuacai’ is in accordance with the specificity of new varieties and has a high value in landscape application.