三角梅新品种‘中闽2号’

Breeding of a new cultivar of Bougainvillea‘Zhongmin 2’

【目的】为丰富我国三角梅(Bougainvillea spp.)种质资源,促进园林应用品种多样化,选育三角梅新品种。【方法】在2016年,采收三角梅‘中闽1号’(Bougainvillea‘Zhongmin 1’)自然授粉的种子进行播种,选育出具有特异性的实生苗,进行扦插培育。【结果】通过对品种性状进行调查后,选育出花色呈淡紫色的新品种,并在表型性状和分子水平均能与其近似品种区分开。该新品种在福建种植时自然花期为9月至翌年4月,花序主要着生于枝顶端和中部,叶为阔卵形,叶基呈宽模型。经4年的连续观察,性状稳定,将其命名为‘中闽2号’(Bougainvillea‘Zhongmin 2’)。【结论】‘中闽2号’花色淡雅、花期长、花量大具有较高的园林应用价值。

【Objective】This study aims to enrich the germplasm resources of Bougainvillea in China and to promote the cultivar diversification of garden applications.【Method】In 2016,we collected and sowed the seeds of natural hybrid of‘Zhongmin 1’.Then all mutant seedlings were used as the cutting propagation for selective breeding.【Result】Through analyzing the characters of seedlings,we found a new cultivar with lavender bract.This new cultivar can be distinguished from its similar variety at phenotypic characters and molecular levels.The natural flowering period of the new cultivar was from September to April of the next year when it was planted in Fujian Province,and flowers were arranged in large bunches at the middle and ends of the branches.The leaves are broadly ovate with wide wedge-shaped base.Thus,we concluded that the new cultivar has stable characters after four years of investigation,and named it‘Zhongmin 2’.【Conclusion】‘Zhongmin 2’is a new cultivar with pastel color、long flowering period,large amount of flowers and high ornamental value.