三角梅新品种闽红1号的选育

A New Bougainvillea Cultivar, Minhong 1

【目的】为丰富我国三角梅种质资源,通过实生繁育技术选育三角梅新品种,以促进三角梅品种多样化。【方法】2009年,以银边浅紫三角梅为材料,采收自然杂交的种子进行播种,1年后将播种苗全部落地栽培;2010–2013年进行扦插繁殖并选种,初选变异株命名为闽红1号;2014–2015年闽红1号与其亲本进行品比试验,2017–2018年闽红1号进行多点试验,2022年进行分子基因组测序验证其与母本的亲缘关系。【结果】新品种闽红1号在厦门、漳州等地种植,9月至翌年4月为花期,平均节间距长1.39 cm,刺长4.01 mm;新叶呈橘红色,成熟叶为中绿色,平均叶长7.42 cm,叶宽3.73 cm;花序着生于枝顶端和中部,花苞片呈紫红色,平均长3.97 cm,宽3.19 cm,花期232 d左右。经过品比试验和多点试验,闽红1号表现稳定。闽红1号与其母本的分子测序,证实两者亲缘关系接近。【结论】闽红1号花期长、花量大,具有较高的园林应用价值,于2021年10月正式获颁国家林草局新品种权证书(品种权号:20210523)。

【Objective】a new bougainvillea cultivar was bred by seedling selection to add to the germplasm collection in China for landscaping.【Method】In 2009,the seeds of natural hybrid Bougainvillea glabra Mrs.Eva Mauve Variegata were sown,and seedlings planted a year later.In the field,the selected seedlings were propagated with cut tissues from 2010 to 2013 and named Minhong 1.Subsequently,they were compared to the parent in 2013–2014,and subjected to multi-point tests in 2017–2019.Genetic relationship among cultivars was examined by GBS in 2022.【Result】The Minhong 1 planted in Xiamen,Zhangzhou,and other localities bloomed from September to following April with an average internode distance of 1.39 cm and thorn length of 4.01 mm.The leaves were reddish orange when young and green at mature stage with an average length of 7.42 cm and width of 3.73 cm.The inflorescences borne on top and middle of the plant with purplish red bracts of an average length of 3.97 cm and width of 3.19 cm.It had 232 flowering days in a year.Minhong 1 and its parent had a close genetic relationship according to the molecular sequences.【Conclusion】Minhong 1 was a newly bred bougainvillea cultivar with prolonged florescence,abundant flowers,and high ornamental value for landscaping.It has officially been certified as a new bougainvillea variety issued by the National Forestry and Grassland Administration with the Variety Right of No.20210523 in October 2021.